Removed port from host that would break cookie deletion

app/build.gradle.kts

@@ -4,9 +4,7 @@ plugins {
 
 android {
     namespace = "com.campusaula.edbole.kanban_clone_android"
-    compileSdk {
-        version = release(36)
-    }
+    compileSdk = 36
 
     defaultConfig {
         applicationId = "com.campusaula.edbole.KanbanCloneAndroid"
@@ -44,7 +42,6 @@ dependencies {
     implementation("androidx.lifecycle:lifecycle-viewmodel-ktx:2.6.2")
     implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.6.2")
 
-    // Networking: OkHttp + Retrofit
     implementation("com.squareup.okhttp3:okhttp:4.11.0")
     implementation("com.squareup.okhttp3:logging-interceptor:4.11.0")
     implementation("com.squareup.retrofit2:retrofit:2.9.0")

app/src/main/AndroidManifest.xml

@@ -18,6 +18,18 @@
         <activity
                 android:name=".ui.CreateProjectActivity"
                 android:exported="false" />
+        <activity
+                android:name=".ui.ProjectEditActivity"
+                android:exported="false" />
+        <activity
+                android:name=".ui.CollaboratorAddActivity"
+                android:exported="false" />
+        <activity
+                android:name=".ui.TaskAddActivity"
+                android:exported="false" />
+        <activity
+                android:name=".ui.TaskEditActivity"
+                android:exported="false" />
         <activity
                 android:name=".ui.ProjectDetailActivity"
                 android:exported="false" />

app/src/main/java/com/campusaula/edbole/kanban_clone_android/kanban/Task.kt

@@ -3,15 +3,15 @@ package com.campusaula.edbole.kanban_clone_android.kanban
 import com.google.gson.annotations.SerializedName
 
 enum class TaskStatus {
-    @SerializedName("PENDING")
+    @SerializedName("pending")
     PENDING,
-    @SerializedName("IN_PROGRESS")
+    @SerializedName("in_progress")
     IN_PROGRESS,
-    @SerializedName("COMPLETED")
+    @SerializedName("completed")
     COMPLETED,
-    @SerializedName("FAILED")
+    @SerializedName("failed")
     FAILED,
-    @SerializedName("STASHED")
+    @SerializedName("stashed")
     STASHED
 }
 
@@ -19,7 +19,7 @@ class Task {
     val id: Int = 0
     val title: String = ""
     val description: String = ""
-    val status: TaskStatus = TaskStatus.PENDING
+    var status: TaskStatus = TaskStatus.PENDING
     val project: Project? = null
 }
 
@@ -36,3 +36,14 @@ data class TaskBase(
     @SerializedName("status")
     val status: TaskStatus
 )
+
+data class TaskUpdate(
+    @SerializedName("title")
+    val title : String?,
+
+    @SerializedName("description")
+    val description : String?,
+
+    @SerializedName("status")
+    val status: TaskStatus?
+)

app/src/main/java/com/campusaula/edbole/kanban_clone_android/network/ApiService.kt

@@ -40,6 +40,18 @@ interface ApiService {
     @GET("projects/{project_id}/users/")
     suspend fun getProjectUsers(@Path("project_id") projectId: Int): Response<List<UserBase>>
 
+    @POST("projects/{project_id}/users/")
+    suspend fun addProjectCollaborator(
+        @Path("project_id") projectId: Int,
+        @Body email: Map<String, String>
+    ): Response<Unit>
+
+    @DELETE("projects/{project_id}/users/{user_id}/")
+    suspend fun removeProjectCollaborator(
+        @Path("project_id") projectId: Int,
+        @Path("user_id") userId: Int
+    ): Response<Unit>
+
     @POST("projects/")
     suspend fun createProject(@Body projectCreate: ProjectCreate): Response<ProjectBase>
 
@@ -57,4 +69,17 @@ interface ApiService {
     @POST("projects/{project_id}/tasks/")
     suspend fun createTask(@Path("project_id") projectId: Int, @Body taskBase: TaskBase): Response<TaskBase>
 
+    @PUT("projects/{project_id}/tasks/{task_id}/")
+    suspend fun updateProjectTask(
+        @Path("project_id") projectId: Int,
+        @Path("task_id") taskId: Int,
+        @Body taskUpdate: TaskUpdate
+    ): Response<Unit>
+
+    @DELETE("projects/{project_id}/tasks/{task_id}/")
+    suspend fun deleteProjectTask(
+        @Path("project_id") projectId: Int,
+        @Path("task_id") taskId: Int
+    ): Response<Unit>
+
 }

app/src/main/java/com/campusaula/edbole/kanban_clone_android/ui/CollaboratorAddActivity.kt

@@ -0,0 +1,126 @@
+package com.campusaula.edbole.kanban_clone_android.ui
+
+import android.content.Intent
+import android.os.Bundle
+import android.util.Log
+import android.util.Patterns
+import android.widget.Button
+import android.widget.EditText
+import android.widget.Toast
+import androidx.activity.enableEdgeToEdge
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+import androidx.lifecycle.lifecycleScope
+import com.campusaula.edbole.kanban_clone_android.R
+import com.campusaula.edbole.kanban_clone_android.network.ApiService
+import com.campusaula.edbole.kanban_clone_android.network.RetrofitInstance
+import com.google.android.material.floatingactionbutton.FloatingActionButton
+import kotlinx.coroutines.launch
+
+class CollaboratorAddActivity : AppCompatActivity() {
+
+    private lateinit var api: ApiService
+
+    private lateinit var returnActionButton: FloatingActionButton
+    private lateinit var collaboratorEmailInput: EditText
+    private lateinit var addCollaboratorButton: Button
+
+    private var projectId: Int = -1
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enableEdgeToEdge()
+        setContentView(R.layout.activity_collaborator_add)
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
+            val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
+            insets
+        }
+
+        api = RetrofitInstance.getRetrofit(applicationContext).create(ApiService::class.java)
+
+        // Get project ID from intent
+        projectId = intent.getIntExtra("project_id", -1)
+
+        if (projectId == -1) {
+            Toast.makeText(this, "Error: Invalid project ID", Toast.LENGTH_SHORT).show()
+            finish()
+            return
+        }
+
+        // Initialize views
+        returnActionButton = findViewById(R.id.returnActionButton)
+        collaboratorEmailInput = findViewById(R.id.collaboratorEmailInput)
+        addCollaboratorButton = findViewById(R.id.addCollaboratorButton)
+
+        // Set up button listeners
+        returnActionButton.setOnClickListener {
+            finish()
+
+            val intent = Intent(this@CollaboratorAddActivity, ProjectDetailActivity::class.java)
+            intent.putExtra("project_id", projectId)
+            startActivity(intent)
+
+        }
+
+        addCollaboratorButton.setOnClickListener {
+            addCollaborator()
+        }
+    }
+
+    private fun addCollaborator() {
+        val user_email = collaboratorEmailInput.text.toString().trim()
+
+        // Validate email
+        if (user_email.isEmpty()) {
+            Toast.makeText(this, "Email cannot be empty", Toast.LENGTH_SHORT).show()
+            return
+        }
+
+        if (!Patterns.EMAIL_ADDRESS.matcher(user_email).matches()) {
+            Toast.makeText(this, "Please enter a valid email address", Toast.LENGTH_SHORT).show()
+            return
+        }
+
+        lifecycleScope.launch {
+            try {
+                Log.d("CollaboratorAddActivity", "Adding collaborator: $user_email")
+                val emailBody = mapOf("user_email" to user_email)
+                val response = api.addProjectCollaborator(projectId, emailBody)
+
+                if (response.isSuccessful) {
+                    Log.d("CollaboratorAddActivity", "Collaborator added successfully")
+                    Toast.makeText(
+                        this@CollaboratorAddActivity,
+                        "Collaborator added successfully",
+                        Toast.LENGTH_SHORT
+                    ).show()
+                    setResult(RESULT_OK)
+                    finish()
+
+                    // Reopen ProjectDetailActivity to show the new collaborator
+                    val intent = Intent(this@CollaboratorAddActivity, ProjectDetailActivity::class.java)
+                    intent.putExtra("project_id", projectId)
+                    startActivity(intent)
+                } else {
+                    val errorBody = response.errorBody()?.string()
+                    Log.e("CollaboratorAddActivity", "Error adding collaborator: $errorBody")
+                    Toast.makeText(
+                        this@CollaboratorAddActivity,
+                        "Error adding collaborator: ${response.code()}",
+                        Toast.LENGTH_SHORT
+                    ).show()
+                }
+            } catch (e: Exception) {
+                Log.e("CollaboratorAddActivity", "Exception adding collaborator: ${e.message}")
+                Toast.makeText(
+                    this@CollaboratorAddActivity,
+                    "Failed to add collaborator: ${e.message}",
+                    Toast.LENGTH_SHORT
+                ).show()
+            }
+        }
+    }
+}
+

app/src/main/java/com/campusaula/edbole/kanban_clone_android/ui/CreateProjectActivity.kt

@@ -3,9 +3,8 @@ package com.campusaula.edbole.kanban_clone_android.ui
 import android.content.Intent
 import android.os.Bundle
 import android.util.Log
-import android.widget.AutoCompleteTextView
 import android.widget.Button
-import android.widget.MultiAutoCompleteTextView
+import android.widget.EditText
 import android.widget.Toast
 import androidx.activity.enableEdgeToEdge
 import androidx.appcompat.app.AppCompatActivity
@@ -25,8 +24,8 @@ class CreateProjectActivity : AppCompatActivity() {
     private lateinit var api: ApiService
 
     private lateinit var returnActionButton : FloatingActionButton
-    private lateinit var newProjectName : AutoCompleteTextView
-    private lateinit var newProjectDescription : AutoCompleteTextView
+    private lateinit var newProjectName : EditText
+    private lateinit var newProjectDescription : EditText
     private lateinit var newProjectCreateButton : Button
 
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -42,47 +41,63 @@ class CreateProjectActivity : AppCompatActivity() {
         api = RetrofitInstance.getRetrofit(applicationContext).create(ApiService::class.java)
 
         returnActionButton = findViewById(R.id.returnActionButton)
-        returnActionButton.setOnClickListener { finish() }
+        returnActionButton.setOnClickListener {
+            finish()
+
+            val intent = Intent(this@CreateProjectActivity, MainActivity::class.java)
+            startActivity(intent)
+        }
 
         newProjectName = findViewById(R.id.newProjectName)
         newProjectDescription = findViewById(R.id.newProjectDescription)
 
         newProjectCreateButton = findViewById(R.id.newProjectCreateButton)
         newProjectCreateButton.setOnClickListener {
-            val projectName = newProjectName.text.toString()
-            val projectDescription = newProjectDescription.text.toString()
+            val projectName = newProjectName.text.toString().trim()
+            val projectDescription = newProjectDescription.text.toString().trim()
 
-            if (projectName.isEmpty() || projectDescription.isEmpty()) {
-                Toast
-                    .makeText(this, "Please fill in all fields", Toast.LENGTH_SHORT)
-                    .show()
+            if (projectName.isEmpty()) {
+                Toast.makeText(this, "Project name cannot be empty", Toast.LENGTH_SHORT).show()
                 return@setOnClickListener
             }
 
             lifecycleScope.launch {
+                try {
+                    Log.d("CreateProjectActivity", "Creating project: $projectName")
+                    val projectCreate = ProjectCreate(projectName, projectDescription)
+                    val response = api.createProject(projectCreate)
 
-                val projectCreate : ProjectCreate = ProjectCreate(projectName, projectDescription)
-                val response = api.createProject(projectCreate)
+                    if (response.isSuccessful) {
+                        Log.d("CreateProjectActivity", "Project created successfully: ${response.body()}")
+                        Toast.makeText(
+                            this@CreateProjectActivity,
+                            "Project created successfully",
+                            Toast.LENGTH_SHORT
+                        ).show()
+                        finish()
 
-                if (response.isSuccessful){
-                    Toast
-                        .makeText(this@CreateProjectActivity, "Project created successfully", Toast.LENGTH_SHORT)
-                        .show()
-                    Log.d("CreateProjectActivity", "Created project: ${response.body()}")
-                    startActivity(Intent(this@CreateProjectActivity, MainActivity::class.java))
-                } else {
-                    Log.e("CreateProjectActivity", "Error creating project: ${response.code()} - ${response.message()}")
-                    Toast
-                        .makeText(this@CreateProjectActivity, "Error creating project", Toast.LENGTH_SHORT)
-                        .show()
+                        // Volver a MainActivity para ver el nuevo proyecto
+                        val intent = Intent(this@CreateProjectActivity, MainActivity::class.java)
+                        startActivity(intent)
+                    } else {
+                        val errorBody = response.errorBody()?.string()
+                        Log.e("CreateProjectActivity", "Error creating project: $errorBody")
+                        Toast.makeText(
+                            this@CreateProjectActivity,
+                            "Error creating project: ${response.code()}",
+                            Toast.LENGTH_SHORT
+                        ).show()
+                    }
+                } catch (e: Exception) {
+                    Log.e("CreateProjectActivity", "Exception creating project: ${e.message}")
+                    Toast.makeText(
+                        this@CreateProjectActivity,
+                        "Failed to create project: ${e.message}",
+                        Toast.LENGTH_SHORT
+                    ).show()
                 }
-
             }
-
         }
 
-
-
-
     }
 }

app/src/main/java/com/campusaula/edbole/kanban_clone_android/ui/MainActivity.kt

@@ -15,6 +15,7 @@ import com.campusaula.edbole.kanban_clone_android.R
 import com.campusaula.edbole.kanban_clone_android.kanban.Project
 import com.campusaula.edbole.kanban_clone_android.network.ApiService
 import com.campusaula.edbole.kanban_clone_android.network.RetrofitInstance
+import com.campusaula.edbole.kanban_clone_android.ui.adapters.ProjectItemAdapter
 import com.google.android.material.floatingactionbutton.FloatingActionButton
 import kotlinx.coroutines.launch
 
@@ -81,8 +82,9 @@ class MainActivity : AppCompatActivity() {
                 if (logoutResponse.isSuccessful) {
                     // Clear cookies for the API host
                     RetrofitInstance.clearCookiesForHost(
-                        "10.0.2.2:8000"
+                        "10.0.2.2"
                     )
+
                     // Navigate back to the login screen
                     val intent =
                         Intent(this@MainActivity, LoginActivity::class.java)

app/src/main/java/com/campusaula/edbole/kanban_clone_android/ui/ProjectCollaboratorAdapter.kt

@@ -1,41 +0,0 @@
-package com.campusaula.edbole.kanban_clone_android.ui
-
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import android.widget.Button
-import android.widget.TextView
-import androidx.recyclerview.widget.RecyclerView
-import com.campusaula.edbole.kanban_clone_android.kanban.User
-
-class ProjectCollaboratorAdapter(
-    private var collaborators: List<User>
-) : RecyclerView.Adapter<ProjectCollaboratorAdapter.ViewHolder>() {
-
-    fun submitList(newList: List<User>) {
-        collaborators = newList.toMutableList()
-        notifyDataSetChanged()
-    }
-
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
-        val view = LayoutInflater.from(parent.context).inflate(R.layout.item_collaborator, parent, false)
-        return ViewHolder(view)
-    }
-
-    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
-        holder.bind(collaborators[position])
-    }
-
-    override fun getItemCount(): Int = collaborators.size
-    class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
-        private val collaboratorNameText: TextView = itemView.findViewById(R.id.collaboratorNameText)
-        private val removeCollaboratorButton: Button = itemView.findViewById(R.id.removeCollaboratorButton)
-
-        fun bind(collaborator: User) {
-            collaboratorNameText.text = collaborator.name
-
-        }
-    }
-    }
-
-}

app/src/main/java/com/campusaula/edbole/kanban_clone_android/ui/ProjectDetailActivity.kt

@@ -18,6 +18,8 @@ import com.campusaula.edbole.kanban_clone_android.kanban.Task
 import com.campusaula.edbole.kanban_clone_android.kanban.TaskStatus
 import com.campusaula.edbole.kanban_clone_android.network.ApiService
 import com.campusaula.edbole.kanban_clone_android.network.RetrofitInstance
+import com.campusaula.edbole.kanban_clone_android.ui.adapters.ProjectCollaboratorAdapter
+import com.campusaula.edbole.kanban_clone_android.ui.adapters.ProjectTaskAdapter
 import com.google.android.material.floatingactionbutton.FloatingActionButton
 import kotlinx.coroutines.launch
 
@@ -28,9 +30,14 @@ class ProjectDetailActivity : AppCompatActivity() {
     private lateinit var returnActionButton: FloatingActionButton
     private lateinit var addTaskButton: Button
     private lateinit var addCollaboratorButton: Button
+    private lateinit var editProjectButton: Button
+    private lateinit var deleteProjectButton: Button
 
+    private lateinit var taskListRecycler: RecyclerView
     private lateinit var collaboratorListRecycler: RecyclerView
-//    private lateinit var collaboratorListAdapter: CollaboratorListAdapter
+    private lateinit var collaboratorListAdapter: ProjectCollaboratorAdapter
+    private lateinit var taskListAdapter: ProjectTaskAdapter
+
 
     private lateinit var projectTitleText : TextView
     private lateinit var projectDescriptionText : TextView
@@ -59,23 +66,52 @@ class ProjectDetailActivity : AppCompatActivity() {
         returnActionButton.setOnClickListener { finish() }
 
         addTaskButton = findViewById(R.id.addTaskButton)
-//        addTaskButton.setOnClickListener {
-//            val intent: Intent = Intent(this, CreateTaskActivity::class.java)
-//            intent.putExtra("project_id", projectId)
-//            startActivity(intent)
-//        }
+        addTaskButton.setOnClickListener {
+            val intent = Intent(this, TaskAddActivity::class.java)
+            intent.putExtra("project_id", projectId)
+            startActivity(intent)
+            finish()
+        }
 
         addCollaboratorButton = findViewById(R.id.addCollaboratorButton)
-//        addCollaboratorButton.setOnClickListener {
-//            val intent: Intent = Intent(this, AddCollaboratorActivity::class.java)
-//            intent.putExtra("project_id", projectId)
-//            startActivity(intent)
-//        }
+        addCollaboratorButton.setOnClickListener {
+            val intent = Intent(this, CollaboratorAddActivity::class.java)
+            intent.putExtra("project_id", projectId)
+            startActivity(intent)
+            finish()
+        }
+
+        taskListRecycler = findViewById(R.id.taskListRecycler)
+        taskListRecycler.layoutManager = androidx.recyclerview.widget.LinearLayoutManager(this)
+        taskListAdapter = ProjectTaskAdapter(emptyList(), api, projectId, {
+            updateCompletionRate()
+        }, {
+            finish()
+        })
+        taskListRecycler.adapter = taskListAdapter
 
         collaboratorListRecycler = findViewById(R.id.collaboratorListRecycler)
-//        collaboratorListAdapter =
         collaboratorListRecycler.layoutManager = androidx.recyclerview.widget.LinearLayoutManager(this)
+        collaboratorListAdapter = ProjectCollaboratorAdapter(emptyList(), api, projectId) {
+            updateCollaboratorList()
+        }
+        collaboratorListRecycler.adapter = collaboratorListAdapter
 
+        // Danger Zone buttons
+        editProjectButton = findViewById(R.id.editProjectButton)
+        editProjectButton.setOnClickListener {
+            val intent = Intent(this, ProjectEditActivity::class.java)
+            intent.putExtra("project_id", projectId)
+            intent.putExtra("project_name", projectTitleText.text.toString())
+            intent.putExtra("project_description", projectDescriptionText.text.toString())
+            startActivity(intent)
+            finish()
+        }
+
+        deleteProjectButton = findViewById(R.id.deleteProjectButton)
+        deleteProjectButton.setOnClickListener {
+            deleteProject(projectId)
+        }
 
         if (projectId > 0) {
             Log.d("ProjectDetailActivity", "Received project ID: $projectId")
@@ -94,16 +130,22 @@ class ProjectDetailActivity : AppCompatActivity() {
                         projectDescriptionText.text = project.description
 
                         var percentageFinished = 0.0;
+                        val collaborators = project.users
                         val tasks: List<Task> = project.tasks
                         val totalTasks: Int = tasks.size
-                        val perTaskPercentage = if (totalTasks > 0) (1.0 / totalTasks)*100 else 0.0
 
+                        var completedTasks = 0
                         for (task in tasks) {
                             if (task.status == TaskStatus.COMPLETED) {
-                                percentageFinished += perTaskPercentage
+                                completedTasks++
                             }
                         }
-                        completedPercentageText.text = "Completed: ${"%.2f".format(percentageFinished * 100)}%"
+
+                        percentageFinished = if (totalTasks > 0) (completedTasks.toDouble() / totalTasks.toDouble()) * 100 else 0.0
+                        completedPercentageText.text = "Completed: ${"%.2f".format(percentageFinished)}%"
+
+                        taskListAdapter.submitList(tasks.toMutableList())
+                        collaboratorListAdapter.submitList(collaborators.toMutableList())
 
 
                     } else {
@@ -124,4 +166,90 @@ class ProjectDetailActivity : AppCompatActivity() {
 
 
     }
+
+    private fun updateCompletionRate() {
+        lifecycleScope.launch {
+            try {
+                val projectId = intent.getIntExtra("project_id", -1)
+                val projectResponse = api.getProjectById(projectId)
+
+                if (projectResponse.isSuccessful && projectResponse.body() != null) {
+                    val project = projectResponse.body()!!
+                    val tasks: List<Task> = project.tasks
+                    val totalTasks: Int = tasks.size
+
+                    var completedTasks = 0
+                    for (task in tasks) {
+                        if (task.status == TaskStatus.COMPLETED) {
+                            completedTasks++
+                        }
+                    }
+
+                    val percentageFinished = if (totalTasks > 0) (completedTasks.toDouble() / totalTasks.toDouble()) * 100 else 0.0
+                    completedPercentageText.text = "Completed: ${"%.2f".format(percentageFinished)}%"
+
+                    // Actualizar la lista de tareas también
+                    taskListAdapter.submitList(tasks.toMutableList())
+                }
+            } catch (e: Exception) {
+                Log.e("ProjectDetailActivity", "Error updating completion rate", e)
+            }
+        }
+    }
+
+    private fun updateCollaboratorList() {
+        lifecycleScope.launch {
+            try {
+                val projectId = intent.getIntExtra("project_id", -1)
+                val projectResponse = api.getProjectById(projectId)
+
+                if (projectResponse.isSuccessful && projectResponse.body() != null) {
+                    val project = projectResponse.body()!!
+                    val collaborators = project.users
+
+                    collaboratorListAdapter.submitList(collaborators.toMutableList())
+                }
+            } catch (e: Exception) {
+                Log.e("ProjectDetailActivity", "Error updating collaborator list", e)
+            }
+        }
+    }
+
+    private fun deleteProject(projectId: Int) {
+        lifecycleScope.launch {
+            try {
+                Log.d("ProjectDetailActivity", "Deleting project: $projectId")
+                val response = api.deleteProject(projectId)
+
+                if (response.isSuccessful) {
+                    Log.d("ProjectDetailActivity", "Project deleted successfully")
+                    android.widget.Toast.makeText(
+                        this@ProjectDetailActivity,
+                        "Project deleted successfully",
+                        android.widget.Toast.LENGTH_SHORT
+                    ).show()
+                    finish()
+
+                    // Volver a MainActivity
+                    val intent = Intent(this@ProjectDetailActivity, MainActivity::class.java)
+                    startActivity(intent)
+                } else {
+                    val errorBody = response.errorBody()?.string()
+                    Log.e("ProjectDetailActivity", "Error deleting project: $errorBody")
+                    android.widget.Toast.makeText(
+                        this@ProjectDetailActivity,
+                        "Error deleting project: ${response.code()}",
+                        android.widget.Toast.LENGTH_SHORT
+                    ).show()
+                }
+            } catch (e: Exception) {
+                Log.e("ProjectDetailActivity", "Exception deleting project: ${e.message}")
+                android.widget.Toast.makeText(
+                    this@ProjectDetailActivity,
+                    "Failed to delete project: ${e.message}",
+                    android.widget.Toast.LENGTH_SHORT
+                ).show()
+            }
+        }
+    }
 }

app/src/main/java/com/campusaula/edbole/kanban_clone_android/ui/ProjectEditActivity.kt

@@ -0,0 +1,134 @@
+package com.campusaula.edbole.kanban_clone_android.ui
+
+import android.content.Intent
+import android.os.Bundle
+import android.util.Log
+import android.widget.Button
+import android.widget.EditText
+import android.widget.Toast
+import androidx.activity.enableEdgeToEdge
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+import androidx.lifecycle.lifecycleScope
+import com.campusaula.edbole.kanban_clone_android.R
+import com.campusaula.edbole.kanban_clone_android.kanban.ProjectCreate
+import com.campusaula.edbole.kanban_clone_android.network.ApiService
+import com.campusaula.edbole.kanban_clone_android.network.RetrofitInstance
+import com.google.android.material.floatingactionbutton.FloatingActionButton
+import kotlinx.coroutines.launch
+
+class ProjectEditActivity : AppCompatActivity() {
+
+    private lateinit var api: ApiService
+
+    private lateinit var returnActionButton: FloatingActionButton
+    private lateinit var projectNameInput: EditText
+    private lateinit var projectDescriptionInput: EditText
+    private lateinit var saveProjectButton: Button
+
+    private var projectId: Int = -1
+    private var currentName: String = ""
+    private var currentDescription: String = ""
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enableEdgeToEdge()
+        setContentView(R.layout.activity_project_edit)
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
+            val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
+            insets
+        }
+
+        api = RetrofitInstance.getRetrofit(applicationContext).create(ApiService::class.java)
+
+        // Get project data from intent
+        projectId = intent.getIntExtra("project_id", -1)
+        currentName = intent.getStringExtra("project_name") ?: ""
+        currentDescription = intent.getStringExtra("project_description") ?: ""
+
+        if (projectId == -1) {
+            Toast.makeText(this, "Error: Invalid project ID", Toast.LENGTH_SHORT).show()
+            finish()
+            return
+        }
+
+        // Initialize views
+        returnActionButton = findViewById(R.id.returnActionButton)
+        projectNameInput = findViewById(R.id.projectNameInput)
+        projectDescriptionInput = findViewById(R.id.projectDescriptionInput)
+        saveProjectButton = findViewById(R.id.saveProjectButton)
+
+        // Populate fields with current project data
+        projectNameInput.setText(currentName)
+        projectDescriptionInput.setText(currentDescription)
+
+        // Set up button listeners
+        returnActionButton.setOnClickListener {
+            finish()
+
+            val intent = Intent(this@ProjectEditActivity, ProjectDetailActivity::class.java)
+            intent.putExtra("project_id", projectId)
+            startActivity(intent)
+        }
+
+        saveProjectButton.setOnClickListener {
+            saveProject()
+        }
+    }
+
+    private fun saveProject() {
+        val newName = projectNameInput.text.toString().trim()
+        val newDescription = projectDescriptionInput.text.toString().trim()
+
+        if (newName.isEmpty()) {
+            Toast.makeText(this, "Project name cannot be empty", Toast.LENGTH_SHORT).show()
+            return
+        }
+
+        lifecycleScope.launch {
+            try {
+                Log.d("ProjectEditActivity", "Updating project: $projectId")
+                val projectCreate = ProjectCreate(
+                    name = newName,
+                    description = newDescription
+                )
+
+                val response = api.updateProject(projectId, projectCreate)
+
+                if (response.isSuccessful) {
+                    Log.d("ProjectEditActivity", "Project updated successfully")
+                    Toast.makeText(
+                        this@ProjectEditActivity,
+                        "Project updated successfully",
+                        Toast.LENGTH_SHORT
+                    ).show()
+                    setResult(RESULT_OK)
+                    finish()
+
+                    // Reopen ProjectDetailActivity to show the updated project
+                    val intent = Intent(this@ProjectEditActivity, ProjectDetailActivity::class.java)
+                    intent.putExtra("project_id", projectId)
+                    startActivity(intent)
+                } else {
+                    val errorBody = response.errorBody()?.string()
+                    Log.e("ProjectEditActivity", "Error updating project: $errorBody")
+                    Toast.makeText(
+                        this@ProjectEditActivity,
+                        "Error updating project: ${response.code()}",
+                        Toast.LENGTH_SHORT
+                    ).show()
+                }
+            } catch (e: Exception) {
+                Log.e("ProjectEditActivity", "Exception updating project: ${e.message}")
+                Toast.makeText(
+                    this@ProjectEditActivity,
+                    "Failed to update project: ${e.message}",
+                    Toast.LENGTH_SHORT
+                ).show()
+            }
+        }
+    }
+}
+

app/src/main/java/com/campusaula/edbole/kanban_clone_android/ui/TaskAddActivity.kt

@@ -0,0 +1,136 @@
+package com.campusaula.edbole.kanban_clone_android.ui
+
+import android.content.Intent
+import android.os.Bundle
+import android.util.Log
+import android.widget.Button
+import android.widget.EditText
+import android.widget.Spinner
+import android.widget.Toast
+import androidx.activity.enableEdgeToEdge
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+import androidx.lifecycle.lifecycleScope
+import com.campusaula.edbole.kanban_clone_android.R
+import com.campusaula.edbole.kanban_clone_android.kanban.TaskBase
+import com.campusaula.edbole.kanban_clone_android.kanban.TaskStatus
+import com.campusaula.edbole.kanban_clone_android.network.ApiService
+import com.campusaula.edbole.kanban_clone_android.network.RetrofitInstance
+import com.google.android.material.floatingactionbutton.FloatingActionButton
+import kotlinx.coroutines.launch
+
+class TaskAddActivity : AppCompatActivity() {
+
+    private lateinit var api: ApiService
+
+    private lateinit var returnActionButton: FloatingActionButton
+    private lateinit var taskTitleInput: EditText
+    private lateinit var taskDescriptionInput: EditText
+    private lateinit var taskStatusSpinner: Spinner
+    private lateinit var createTaskButton: Button
+
+    private var projectId: Int = -1
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enableEdgeToEdge()
+        setContentView(R.layout.activity_task_add)
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
+            val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
+            insets
+        }
+
+        api = RetrofitInstance.getRetrofit(applicationContext).create(ApiService::class.java)
+
+        // Get project ID from intent
+        projectId = intent.getIntExtra("project_id", -1)
+
+        if (projectId == -1) {
+            Toast.makeText(this, "Error: Invalid project ID", Toast.LENGTH_SHORT).show()
+            finish()
+            return
+        }
+
+        // Initialize views
+        returnActionButton = findViewById(R.id.returnActionButton)
+        taskTitleInput = findViewById(R.id.taskTitleInput)
+        taskDescriptionInput = findViewById(R.id.taskDescriptionInput)
+        taskStatusSpinner = findViewById(R.id.taskStatusSpinner)
+        createTaskButton = findViewById(R.id.createTaskButton)
+
+        // Set default status to PENDING (index 0)
+        taskStatusSpinner.setSelection(0)
+
+        // Set up button listeners
+        returnActionButton.setOnClickListener {
+            finish()
+
+            val intent = Intent(this@TaskAddActivity, ProjectDetailActivity::class.java)
+            intent.putExtra("project_id", projectId)
+            startActivity(intent)
+        }
+
+        createTaskButton.setOnClickListener {
+            createTask()
+        }
+    }
+
+    private fun createTask() {
+        val title = taskTitleInput.text.toString().trim()
+        val description = taskDescriptionInput.text.toString().trim()
+        val status = TaskStatus.entries[taskStatusSpinner.selectedItemPosition]
+
+        if (title.isEmpty()) {
+            Toast.makeText(this, "Title cannot be empty", Toast.LENGTH_SHORT).show()
+            return
+        }
+
+        lifecycleScope.launch {
+            try {
+                Log.d("TaskAddActivity", "Creating task: $title")
+                val taskBase = TaskBase(
+                    id = 0, // ID will be assigned by the server
+                    title = title,
+                    description = description,
+                    status = status
+                )
+
+                val response = api.createTask(projectId, taskBase)
+
+                if (response.isSuccessful) {
+                    Log.d("TaskAddActivity", "Task created successfully")
+                    Toast.makeText(
+                        this@TaskAddActivity,
+                        "Task created successfully",
+                        Toast.LENGTH_SHORT
+                    ).show()
+                    setResult(RESULT_OK)
+                    finish()
+
+                    // Reopen ProjectDetailActivity to show the new task
+                    val intent = Intent(this@TaskAddActivity, ProjectDetailActivity::class.java)
+                    intent.putExtra("project_id", projectId)
+                    startActivity(intent)
+                } else {
+                    val errorBody = response.errorBody()?.string()
+                    Log.e("TaskAddActivity", "Error creating task: $errorBody")
+                    Toast.makeText(
+                        this@TaskAddActivity,
+                        "Error creating task: ${response.code()}",
+                        Toast.LENGTH_SHORT
+                    ).show()
+                }
+            } catch (e: Exception) {
+                Log.e("TaskAddActivity", "Exception creating task: ${e.message}")
+                Toast.makeText(
+                    this@TaskAddActivity,
+                    "Failed to create task: ${e.message}",
+                    Toast.LENGTH_SHORT
+                ).show()
+            }
+        }
+    }
+}
+

app/src/main/java/com/campusaula/edbole/kanban_clone_android/ui/TaskEditActivity.kt

@@ -0,0 +1,189 @@
+package com.campusaula.edbole.kanban_clone_android.ui
+
+import android.content.Intent
+import android.os.Bundle
+import android.util.Log
+import android.widget.Button
+import android.widget.EditText
+import android.widget.Spinner
+import android.widget.Toast
+import androidx.activity.enableEdgeToEdge
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+import androidx.lifecycle.lifecycleScope
+import com.campusaula.edbole.kanban_clone_android.R
+import com.campusaula.edbole.kanban_clone_android.kanban.TaskStatus
+import com.campusaula.edbole.kanban_clone_android.kanban.TaskUpdate
+import com.campusaula.edbole.kanban_clone_android.network.ApiService
+import com.campusaula.edbole.kanban_clone_android.network.RetrofitInstance
+import com.google.android.material.floatingactionbutton.FloatingActionButton
+import kotlinx.coroutines.launch
+
+class TaskEditActivity : AppCompatActivity() {
+
+    private lateinit var api: ApiService
+
+    private lateinit var returnActionButton: FloatingActionButton
+    private lateinit var taskTitleInput: EditText
+    private lateinit var taskDescriptionInput: EditText
+    private lateinit var taskStatusSpinner: Spinner
+    private lateinit var saveTaskButton: Button
+    private lateinit var deleteTaskButton: Button
+
+    private var projectId: Int = -1
+    private var taskId: Int = -1
+    private var currentTitle: String = ""
+    private var currentDescription: String = ""
+    private var currentStatus: TaskStatus = TaskStatus.PENDING
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enableEdgeToEdge()
+        setContentView(R.layout.activity_task_edit)
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
+            val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
+            insets
+        }
+
+        api = RetrofitInstance.getRetrofit(applicationContext).create(ApiService::class.java)
+
+        // Get task and project IDs from intent
+        projectId = intent.getIntExtra("project_id", -1)
+        taskId = intent.getIntExtra("task_id", -1)
+        currentTitle = intent.getStringExtra("task_title") ?: ""
+        currentDescription = intent.getStringExtra("task_description") ?: ""
+        val statusString = intent.getStringExtra("task_status") ?: "PENDING"
+        currentStatus = TaskStatus.valueOf(statusString)
+
+        if (projectId == -1 || taskId == -1) {
+            Toast.makeText(this, "Error: Invalid task or project ID", Toast.LENGTH_SHORT).show()
+            finish()
+        }
+
+        // Initialize views
+        returnActionButton = findViewById(R.id.returnActionButton)
+        taskTitleInput = findViewById(R.id.taskTitleInput)
+        taskDescriptionInput = findViewById(R.id.taskDescriptionInput)
+        taskStatusSpinner = findViewById(R.id.taskStatusSpinner)
+        saveTaskButton = findViewById(R.id.saveTaskButton)
+        deleteTaskButton = findViewById(R.id.deleteTaskButton)
+
+        // Populate fields with current task data
+        taskTitleInput.setText(currentTitle)
+        taskDescriptionInput.setText(currentDescription)
+        taskStatusSpinner.setSelection(TaskStatus.entries.indexOf(currentStatus))
+
+        // Set up button listeners
+        returnActionButton.setOnClickListener {
+            finish()
+
+            val intent = Intent(this@TaskEditActivity, ProjectDetailActivity::class.java)
+            intent.putExtra("project_id", projectId)
+            startActivity(intent)
+        }
+
+        saveTaskButton.setOnClickListener {
+            saveTask()
+        }
+
+        deleteTaskButton.setOnClickListener {
+            deleteTask()
+        }
+    }
+
+    private fun saveTask() {
+        val newTitle = taskTitleInput.text.toString().trim()
+        val newDescription = taskDescriptionInput.text.toString().trim()
+        val newStatus = TaskStatus.entries[taskStatusSpinner.selectedItemPosition]
+
+        if (newTitle.isEmpty()) {
+            Toast.makeText(this, "Title cannot be empty", Toast.LENGTH_SHORT).show()
+            return
+        }
+
+        lifecycleScope.launch {
+            try {
+                Log.d("TaskEditActivity", "Updating task: $taskId")
+                val taskUpdate = TaskUpdate(
+                    title = if (newTitle != currentTitle) newTitle else null,
+                    description = if (newDescription != currentDescription) newDescription else null,
+                    status = if (newStatus != currentStatus) newStatus else null
+                )
+
+                val response = api.updateProjectTask(projectId, taskId, taskUpdate)
+
+                if (response.isSuccessful) {
+                    Log.d("TaskEditActivity", "Task updated successfully")
+                    Toast.makeText(
+                        this@TaskEditActivity,
+                        "Task updated successfully",
+                        Toast.LENGTH_SHORT
+                    ).show()
+                    setResult(RESULT_OK)
+                    finish()
+                    val intent = Intent(this@TaskEditActivity, ProjectDetailActivity::class.java)
+                    intent.putExtra("project_id", projectId)
+                    startActivity(intent)
+                } else {
+                    val errorBody = response.errorBody()?.string()
+                    Log.e("TaskEditActivity", "Error updating task: $errorBody")
+                    Toast.makeText(
+                        this@TaskEditActivity,
+                        "Error updating task: ${response.code()}",
+                        Toast.LENGTH_SHORT
+                    ).show()
+                }
+            } catch (e: Exception) {
+                Log.e("TaskEditActivity", "Exception updating task: ${e.message}")
+                Toast.makeText(
+                    this@TaskEditActivity,
+                    "Failed to update task: ${e.message}",
+                    Toast.LENGTH_SHORT
+                ).show()
+            }
+        }
+    }
+
+    private fun deleteTask() {
+        lifecycleScope.launch {
+            try {
+                Log.d("TaskEditActivity", "Deleting task: $taskId")
+                val response = api.deleteProjectTask(projectId, taskId)
+
+                if (response.isSuccessful) {
+                    Log.d("TaskEditActivity", "Task deleted successfully")
+                    Toast.makeText(
+                        this@TaskEditActivity,
+                        "Task deleted successfully",
+                        Toast.LENGTH_SHORT
+                    ).show()
+                    setResult(RESULT_OK)
+                    finish()
+
+                    // Reopen ProjectDetailActivity after deleting the task
+                    val intent = Intent(this@TaskEditActivity, ProjectDetailActivity::class.java)
+                    intent.putExtra("project_id", projectId)
+                    startActivity(intent)
+                } else {
+                    val errorBody = response.errorBody()?.string()
+                    Log.e("TaskEditActivity", "Error deleting task: $errorBody")
+                    Toast.makeText(
+                        this@TaskEditActivity,
+                        "Error deleting task: ${response.code()}",
+                        Toast.LENGTH_SHORT
+                    ).show()
+                }
+            } catch (e: Exception) {
+                Log.e("TaskEditActivity", "Exception deleting task: ${e.message}")
+                Toast.makeText(
+                    this@TaskEditActivity,
+                    "Failed to delete task: ${e.message}",
+                    Toast.LENGTH_SHORT
+                ).show()
+            }
+        }
+    }
+}
+

app/src/main/java/com/campusaula/edbole/kanban_clone_android/ui/adapters/ProjectCollaboratorAdapter.kt

@@ -0,0 +1,101 @@
+package com.campusaula.edbole.kanban_clone_android.ui.adapters
+
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Button
+import android.widget.TextView
+import android.widget.Toast
+import androidx.recyclerview.widget.RecyclerView
+import com.campusaula.edbole.kanban_clone_android.R
+import com.campusaula.edbole.kanban_clone_android.kanban.User
+import com.campusaula.edbole.kanban_clone_android.network.ApiService
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.cancel
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+
+class ProjectCollaboratorAdapter(
+    private var collaborators: List<User>,
+    private val apiService: ApiService,
+    private val projectId: Int,
+    private val onCollaboratorRemoved: () -> Unit = {}
+) : RecyclerView.Adapter<ProjectCollaboratorAdapter.ViewHolder>() {
+
+    private val adapterScope = CoroutineScope(SupervisorJob() + Dispatchers.IO)
+
+    fun submitList(newList: List<User>) {
+        collaborators = newList.toMutableList()
+        notifyDataSetChanged()
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        val view = LayoutInflater.from(parent.context).inflate(R.layout.item_collaborator, parent, false)
+        return ViewHolder(view)
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        holder.bind(collaborators[position])
+    }
+
+    override fun getItemCount(): Int = collaborators.size
+
+    fun onDestroy() {
+        adapterScope.cancel("Adapter destroyed")
+    }
+
+    inner class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+        private val collaboratorNameText: TextView = itemView.findViewById(R.id.collaboratorNameText)
+        private val collaboratorEmailText: TextView = itemView.findViewById(R.id.collaboratorEmailText)
+        private val removeCollaboratorButton: Button = itemView.findViewById(R.id.removeCollaboratorButton)
+
+        fun bind(collaborator: User) {
+            collaboratorNameText.text = collaborator.name
+            collaboratorEmailText.text = collaborator.email
+
+            removeCollaboratorButton.setOnClickListener {
+                adapterScope.launch {
+                    try {
+                        Log.d("ProjectCollaboratorAdapter", "Removing collaborator: ${collaborator.id}")
+                        val response = apiService.removeProjectCollaborator(projectId, collaborator.id)
+
+                        if (response.isSuccessful) {
+                            Log.d("ProjectCollaboratorAdapter", "Collaborator removed successfully: ${collaborator.id}")
+                            withContext(Dispatchers.Main) {
+                                Toast.makeText(
+                                    itemView.context,
+                                    "Collaborator removed: ${collaborator.name}",
+                                    Toast.LENGTH_SHORT
+                                ).show()
+                                onCollaboratorRemoved()
+                            }
+                        } else {
+                            val errorBody = response.errorBody()?.string()
+                            Log.e("ProjectCollaboratorAdapter", "Error removing collaborator: $errorBody")
+                            withContext(Dispatchers.Main) {
+                                Toast.makeText(
+                                    itemView.context,
+                                    "Error removing collaborator: ${response.code()}",
+                                    Toast.LENGTH_SHORT
+                                ).show()
+                            }
+                        }
+                    } catch (e: Exception) {
+                        Log.e("ProjectCollaboratorAdapter", "Exception removing collaborator: ${e.message}")
+                        withContext(Dispatchers.Main) {
+                            Toast.makeText(
+                                itemView.context,
+                                "Failed to remove collaborator: ${e.message}",
+                                Toast.LENGTH_SHORT
+                            ).show()
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+}

app/src/main/java/com/campusaula/edbole/kanban_clone_android/ui/adapters/ProjectItemAdapter.kt

@@ -1,4 +1,4 @@
-package com.campusaula.edbole.kanban_clone_android.ui
+package com.campusaula.edbole.kanban_clone_android.ui.adapters
 
 import android.view.LayoutInflater
 import android.view.View
@@ -41,4 +41,4 @@ class ProjectItemAdapter(
             descriptionTextView.text    = project.description
         }
     }
-}
+}

app/src/main/java/com/campusaula/edbole/kanban_clone_android/ui/adapters/ProjectTaskAdapter.kt

@@ -0,0 +1,140 @@
+package com.campusaula.edbole.kanban_clone_android.ui.adapters
+
+import android.content.Intent
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.AdapterView
+import android.widget.Button
+import android.widget.Spinner
+import android.widget.TextView
+import android.widget.Toast
+import androidx.recyclerview.widget.RecyclerView
+import com.campusaula.edbole.kanban_clone_android.R
+import com.campusaula.edbole.kanban_clone_android.kanban.Task
+import com.campusaula.edbole.kanban_clone_android.kanban.TaskStatus
+import com.campusaula.edbole.kanban_clone_android.kanban.TaskUpdate
+import com.campusaula.edbole.kanban_clone_android.network.ApiService
+import com.campusaula.edbole.kanban_clone_android.ui.TaskEditActivity
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.cancel
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+
+class ProjectTaskAdapter(
+    private var tasks: List<Task>,
+    private val apiService: ApiService,
+    private val projectId: Int,
+    private val onTaskUpdated: () -> Unit = {},
+    private val onEditTask: () -> Unit = {}
+) : RecyclerView.Adapter<ProjectTaskAdapter.ViewHolder>() {
+
+    private val adapterScope = CoroutineScope(SupervisorJob() + Dispatchers.IO)
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        val view = LayoutInflater.from(parent.context).inflate(R.layout.item_task, parent, false)
+        return ViewHolder(view)
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        holder.bind(tasks[position])
+    }
+
+    override fun getItemCount(): Int = tasks.size
+
+    fun submitList(newList: List<Task>) {
+        tasks = newList
+        notifyDataSetChanged()
+    }
+
+    // Cancelar el CoroutineScope cuando el adaptador ya no sea necesario
+    fun onDestroy() {
+        adapterScope.cancel()
+    }
+
+    inner class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+        private val taskTitleText: TextView = itemView.findViewById(R.id.taskTitleText)
+        private val taskDescriptionText: TextView = itemView.findViewById(R.id.taskDescriptionText)
+        private val editTaskButton: Button = itemView.findViewById(R.id.editTaskButton)
+        private val taskStatusPicker: Spinner = itemView.findViewById(R.id.taskStatusDropdown)
+
+        fun bind(task: Task) {
+            taskTitleText.text = task.title
+            taskDescriptionText.text = task.description
+
+            editTaskButton.setOnClickListener {
+                val intent = Intent(itemView.context, TaskEditActivity::class.java)
+                intent.putExtra("project_id", projectId)
+                intent.putExtra("task_id", task.id)
+                intent.putExtra("task_title", task.title)
+                intent.putExtra("task_description", task.description)
+                intent.putExtra("task_status", task.status.name)
+                itemView.context.startActivity(intent)
+                onEditTask() // Cerrar la actividad
+            }
+
+            taskStatusPicker.setSelection(TaskStatus.entries.indexOf(task.status))
+
+            taskStatusPicker.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
+                override fun onItemSelected(
+                    parent: AdapterView<*>?,
+                    view: View?,
+                    position: Int,
+                    id: Long
+                ) {
+                    val selectedStatus: TaskStatus = TaskStatus.entries[position]
+                    task.status = selectedStatus
+
+                    adapterScope.launch {
+                        try {
+                            Log.d("ProjectTaskAdapter", "Sending PUT request for task: ${task.id}")
+                            Log.d("ProjectTaskAdapter", "Project ID: $projectId")
+                            Log.d("ProjectTaskAdapter", "TaskUpdate data: ${TaskUpdate(null, null, task.status)}")
+
+                            val response = apiService.updateProjectTask(
+                                projectId,
+                                task.id,
+                                TaskUpdate(null, null, task.status)
+                            )
+
+                            if (response.isSuccessful) {
+                                Log.d("ProjectTaskAdapter", "Task updated successfully: ${task.id}")
+                                withContext(Dispatchers.Main) {
+                                    onTaskUpdated()
+                                    notifyDataSetChanged()
+                                }
+                            } else {
+                                val errorBody = response.errorBody()?.string()
+                                Log.e("ProjectTaskAdapter", "Error response: $errorBody")
+                                withContext(Dispatchers.Main) {
+                                    Toast.makeText(
+                                        itemView.context,
+                                        "Error updating task: ${response.code()} - $errorBody",
+                                        Toast.LENGTH_SHORT
+                                    ).show()
+                                }
+                            }
+                        } catch (e: Exception) {
+                            Log.e("ProjectTaskAdapter", "Exception updating task: ${e.message}")
+                            withContext(Dispatchers.Main) {
+                                Toast.makeText(
+                                    itemView.context,
+                                    "Failed to update task: ${e.message}",
+                                    Toast.LENGTH_SHORT
+                                ).show()
+                            }
+                        }
+                    }
+                }
+
+                override fun onNothingSelected(parent: AdapterView<*>?) {
+                    // No action needed
+                }
+            }
+
+        }
+    }
+}

app/src/main/res/layout/activity_collaborator_add.xml

@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/main"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ui.CollaboratorAddActivity">
+
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+        android:id="@+id/returnActionButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginEnd="@dimen/fab_margin_end"
+        android:layout_marginBottom="@dimen/fab_margin_bottom"
+        android:contentDescription="Return"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:srcCompat="@android:drawable/ic_menu_revert" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical"
+        android:paddingBottom="@dimen/bottom_padding_for_fab">
+
+        <TextView
+            android:id="@+id/titleLabel"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Add Collaborator"
+            android:textSize="@dimen/text_size_title"
+            android:textStyle="bold"
+            android:padding="@dimen/padding_standard"
+            android:layout_marginTop="@dimen/margin_tiny" />
+
+        <TextView
+            android:id="@+id/collaboratorEmailLabel"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Email Address:"
+            android:textSize="@dimen/text_size_subtitle"
+            android:textStyle="bold"
+            android:layout_marginTop="@dimen/margin_medium"
+            android:paddingLeft="@dimen/padding_standard"
+            android:paddingRight="@dimen/padding_standard" />
+
+        <EditText
+            android:id="@+id/collaboratorEmailInput"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:hint="Enter collaborator email"
+            android:inputType="textEmailAddress"
+            android:padding="@dimen/padding_standard"
+            android:layout_marginLeft="@dimen/margin_standard"
+            android:layout_marginRight="@dimen/margin_standard"
+            android:layout_marginTop="@dimen/margin_small" />
+
+        <Button
+            android:id="@+id/addCollaboratorButton"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Add Collaborator"
+            android:backgroundTint="@color/primary_green"
+            android:layout_marginTop="@dimen/margin_large"
+            android:layout_marginLeft="@dimen/margin_standard"
+            android:layout_marginRight="@dimen/margin_standard" />
+
+    </LinearLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/activity_create_project.xml

@@ -16,80 +16,83 @@
             app:srcCompat="@android:drawable/ic_menu_revert"
             android:id="@+id/returnActionButton"
             app:layout_constraintBottom_toBottomOf="parent"
-            android:layout_marginBottom="16dp"
-            android:layout_marginEnd="16dp"
+            android:layout_marginBottom="@dimen/fab_margin_bottom"
+            android:layout_marginEnd="@dimen/fab_margin_end"
             app:layout_constraintEnd_toEndOf="parent" />
 
-    <TextView
-            android:text="Create a new project..."
+    <LinearLayout
             android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:id="@+id/activityTitle"
-            app:layout_constraintTop_toTopOf="parent"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintHorizontal_bias="0.5"
-            app:layout_constraintEnd_toEndOf="parent"
-            android:padding="12dp"
-            android:textSize="24dp"
-            android:layout_marginTop="4dp" />
+            android:layout_height="match_parent"
+            android:orientation="vertical"
+            android:paddingBottom="@dimen/bottom_padding_for_fab">
 
-    <MultiAutoCompleteTextView
-            android:layout_width="match_parent"
-            android:layout_height="500dp"
-            android:id="@+id/newProjectDescription"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintHorizontal_bias="0.0"
-            app:layout_constraintEnd_toEndOf="parent"
-            app:layout_constraintTop_toBottomOf="@+id/newProjectDescriptionLabel"
-            android:hint="This is my new super-special project that will change the world!!!"
-            android:textAlignment="textStart"
-            android:gravity="start|top"
-            android:padding="12dp" />
+        <TextView
+                android:text="Create a new project..."
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:id="@+id/activityTitle"
+                android:padding="@dimen/padding_standard"
+                android:textSize="@dimen/text_size_title"
+                android:textStyle="bold"
+                android:layout_marginTop="@dimen/margin_tiny" />
 
-    <AutoCompleteTextView
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:id="@+id/newProjectName"
-            app:layout_constraintTop_toBottomOf="@+id/newProjectNameLabel"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintHorizontal_bias="0.0"
-            app:layout_constraintEnd_toEndOf="parent"
-            android:hint="My new project!"
-            android:padding="12dp" />
+        <TextView
+                android:text="Project name:"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:id="@+id/newProjectNameLabel"
+                android:textSize="@dimen/text_size_subtitle"
+                android:textStyle="bold"
+                android:layout_marginTop="@dimen/margin_medium"
+                android:paddingLeft="@dimen/padding_standard"
+                android:paddingRight="@dimen/padding_standard" />
 
-    <TextView
-            android:text="Project name:"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:id="@+id/newProjectNameLabel"
-            tools:layout_editor_absoluteX="0dp"
-            android:labelFor="@id/activityTitle"
-            app:layout_constraintTop_toBottomOf="@+id/activityTitle"
-            android:layout_marginTop="16dp" />
+        <EditText
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:id="@+id/newProjectName"
+                android:hint="My new project!"
+                android:inputType="text"
+                android:padding="@dimen/padding_standard"
+                android:layout_marginLeft="@dimen/margin_standard"
+                android:layout_marginRight="@dimen/margin_standard"
+                android:layout_marginTop="@dimen/margin_small" />
 
-    <TextView
-            android:text="Project description:"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:id="@+id/newProjectDescriptionLabel"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintHorizontal_bias="0.0"
-            app:layout_constraintEnd_toEndOf="parent"
-            app:layout_constraintTop_toBottomOf="@+id/newProjectName"
-            android:layout_marginTop="20dp" />
+        <TextView
+                android:text="Project description:"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:id="@+id/newProjectDescriptionLabel"
+                android:textSize="@dimen/text_size_subtitle"
+                android:textStyle="bold"
+                android:layout_marginTop="@dimen/margin_medium"
+                android:paddingLeft="@dimen/padding_standard"
+                android:paddingRight="@dimen/padding_standard" />
 
-    <Button
-            android:text="Create new project"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:id="@+id/newProjectCreateButton"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintHorizontal_bias="0.5"
-            app:layout_constraintEnd_toEndOf="parent"
-            android:layout_marginTop="15dp"
-            app:layout_constraintTop_toBottomOf="@+id/newProjectDescription"
-            android:padding="20dp"
-            android:layout_margin="12dp" />
+        <EditText
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:id="@+id/newProjectDescription"
+                android:hint="This is my new super-special project that will change the world!!!"
+                android:inputType="textMultiLine"
+                android:minLines="3"
+                android:maxLines="5"
+                android:gravity="start|top"
+                android:padding="@dimen/padding_standard"
+                android:layout_marginLeft="@dimen/margin_standard"
+                android:layout_marginRight="@dimen/margin_standard"
+                android:layout_marginTop="@dimen/margin_small" />
 
+        <Button
+                android:text="Create new project"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:id="@+id/newProjectCreateButton"
+                android:backgroundTint="@color/primary_green"
+                android:layout_marginTop="@dimen/margin_large"
+                android:layout_marginLeft="@dimen/margin_standard"
+                android:layout_marginRight="@dimen/margin_standard" />
 
-</androidx.constraintlayout.widget.ConstraintLayout>
+    </LinearLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/activity_login.xml

@@ -55,4 +55,4 @@
             app:layout_constraintHorizontal_bias="0.5"
             app:layout_constraintEnd_toEndOf="parent"
             style="@style/Widget.Material3.Button.TextButton" />
-</androidx.constraintlayout.widget.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/activity_main.xml

@@ -35,7 +35,7 @@
     <androidx.recyclerview.widget.RecyclerView
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            tools:layout_editor_absoluteX="1dp"
+            tools:layout_editor_absoluteX="0dp"
             app:layout_constraintTop_toBottomOf="@+id/logoutButton"
             android:layout_marginTop="8dp"
             android:id="@+id/projectsRecyclerView" />
@@ -51,4 +51,4 @@
             android:layout_marginEnd="16dp"
             app:layout_constraintEnd_toEndOf="parent" />
 
-</androidx.constraintlayout.widget.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/activity_project_detail.xml

@@ -14,120 +14,180 @@
             app:srcCompat="@android:drawable/ic_menu_revert"
             android:id="@+id/returnActionButton"
             app:layout_constraintBottom_toBottomOf="parent"
-            android:layout_marginBottom="16dp"
-            android:layout_marginEnd="16dp"
+            android:layout_marginBottom="@dimen/fab_margin_bottom"
+            android:layout_marginEnd="@dimen/fab_margin_end"
             app:layout_constraintEnd_toEndOf="parent" />
 
-    <TextView
-            android:text="Project Name"
+    <ScrollView
             android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:id="@+id/projectTitleText"
-            android:padding="12dp"
-            app:layout_constraintTop_toTopOf="parent"
-            android:layout_marginTop="4dp"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintHorizontal_bias="0.5"
-            app:layout_constraintEnd_toEndOf="parent"
-            android:textSize="24sp" />
+            android:layout_height="match_parent">
 
-    <TextView
-            android:text="Completed: 100%"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:id="@+id/completedPercentageText"
-            app:layout_constraintTop_toBottomOf="@+id/projectTitleText"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintHorizontal_bias="0.0"
-            app:layout_constraintEnd_toEndOf="parent"
-            android:paddingRight="12dp"
-            android:paddingLeft="12dp"
-            android:layout_marginTop="16dp"
-            android:textSize="18dp" />
-
-    <TextView
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:id="@+id/projectDescriptionText"
-            app:layout_constraintTop_toBottomOf="@+id/projectDescriptionLabel"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintHorizontal_bias="0.0"
-            app:layout_constraintEnd_toEndOf="parent"
-            android:text="Project description"
-            android:padding="12dp"
-            android:gravity="start|top" />
-
-    <TextView
-            android:text="Project description:"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:id="@+id/projectDescriptionLabel"
-            tools:layout_editor_absoluteX="0dp"
-            app:layout_constraintTop_toBottomOf="@+id/completedPercentageText"
-            android:layout_marginTop="16dp"
-            android:paddingLeft="12dp"
-            android:paddingRight="12dp"
-            android:labelFor="@id/projectDescriptionText"
-            android:textSize="18dp" />
-
-    <LinearLayout
-            android:orientation="vertical"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            app:layout_constraintTop_toBottomOf="@+id/projectDescriptionText"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintHorizontal_bias="0.0"
-            app:layout_constraintEnd_toEndOf="parent"
-            android:layout_marginTop="24dp"
-            android:id="@+id/taskLinearLayout">
-
-        <TextView
-                android:text="Tasks:"
+        <LinearLayout
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
-                android:id="@+id/taskListTitle"
-                android:paddingLeft="12dp"
-                android:textSize="18dp" />
+                android:orientation="vertical"
+                android:gravity="start|top">
 
-        <Button
-                android:text="Add a task..."
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:id="@+id/addTaskButton"
-                android:layout_marginLeft="12dp"
-                android:layout_marginRight="12dp" />
-    </LinearLayout>
+            <TextView
+                    android:text="Project Name"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:id="@+id/projectTitleText"
+                    android:padding="@dimen/padding_standard"
+                    android:layout_marginTop="@dimen/margin_tiny"
+                    android:textSize="24sp" />
 
-    <LinearLayout
-            android:orientation="vertical"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            tools:layout_editor_absoluteX="0dp"
-            android:id="@+id/collaboratorsLinearLayout"
-            android:gravity="top|center_vertical"
-            app:layout_constraintTop_toBottomOf="@+id/taskLinearLayout"
-            android:layout_marginTop="24dp">
+            <TextView
+                    android:text="Project description:"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:id="@+id/projectDescriptionLabel"
+                    android:layout_marginTop="@dimen/margin_medium"
+                    android:paddingLeft="@dimen/padding_standard"
+                    android:paddingRight="@dimen/padding_standard"
+                    android:labelFor="@id/projectDescriptionText"
+                    android:textSize="@dimen/text_size_title"
+                    android:textStyle="bold" />
 
-        <TextView
-                android:text="Collaborators:"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:id="@+id/collaboratorListTitle"
-                android:paddingLeft="12dp"
-                android:textSize="18dp" />
+            <TextView
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:id="@+id/projectDescriptionText"
+                    android:text="Project description"
+                    android:padding="@dimen/padding_standard"
+                    android:gravity="start|top" />
 
-        <androidx.recyclerview.widget.RecyclerView
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:id="@+id/collaboratorListRecycler" />
+            <TextView
+                    android:text="Completed: 100%"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:id="@+id/completedPercentageText"
+                    android:paddingRight="@dimen/padding_standard"
+                    android:paddingLeft="@dimen/padding_standard"
+                    android:layout_marginTop="@dimen/margin_medium"
+                    android:textSize="@dimen/text_size_subtitle" />
 
-        <Button
-                android:text="Add a new collaborator..."
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:id="@+id/addCollaboratorButton"
-                android:layout_marginLeft="12dp"
-                android:layout_marginRight="12dp" />
-    </LinearLayout>
+            <LinearLayout
+                    android:orientation="vertical"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="@dimen/margin_large"
+                    android:id="@+id/taskLinearLayout">
 
-</androidx.constraintlayout.widget.ConstraintLayout>
+                <TextView
+                        android:text="Tasks:"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:id="@+id/taskListTitle"
+                        android:paddingLeft="@dimen/padding_standard"
+                        android:textSize="@dimen/text_size_title"
+                        android:textStyle="bold" />
+
+                <androidx.recyclerview.widget.RecyclerView
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:id="@+id/taskListRecycler"
+                        android:padding="8dp"
+                        android:scrollbars="none"
+                        android:isScrollContainer="false" />
+
+                <Button
+                        android:text="Add a task..."
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:id="@+id/addTaskButton"
+                        android:layout_marginLeft="@dimen/margin_standard"
+                        android:layout_marginRight="@dimen/margin_standard"
+                        android:backgroundTint="@color/primary_green" />
+
+            </LinearLayout>
+
+            <LinearLayout
+                    android:orientation="vertical"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:id="@+id/collaboratorsLinearLayout"
+                    android:gravity="top|center_vertical"
+                    android:layout_marginTop="@dimen/margin_large">
+
+                <TextView
+                        android:text="Collaborators:"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:id="@+id/collaboratorListTitle"
+                        android:paddingLeft="@dimen/padding_standard"
+                        android:textSize="@dimen/text_size_title"
+                        android:textStyle="bold" />
+
+                <androidx.recyclerview.widget.RecyclerView
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:id="@+id/collaboratorListRecycler"
+                        android:padding="8dp"
+                        android:scrollbars="none"
+                        android:isScrollContainer="false" />
+
+                <Button
+                        android:text="Add a new collaborator..."
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:id="@+id/addCollaboratorButton"
+                        android:layout_marginLeft="@dimen/margin_standard"
+                        android:layout_marginRight="@dimen/margin_standard"
+                        android:backgroundTint="@color/primary_green" />
+            </LinearLayout>
+
+            <LinearLayout
+                    android:orientation="vertical"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:id="@+id/dangerZoneLinearLayout"
+                    android:layout_marginTop="@dimen/margin_xlarge"
+                    android:paddingBottom="16dp">
+
+                <TextView
+                        android:text="Danger Zone"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:id="@+id/dangerZoneTitle"
+                        android:paddingLeft="@dimen/padding_standard"
+                        android:paddingRight="@dimen/padding_standard"
+                        android:textSize="@dimen/text_size_title"
+                        android:textStyle="bold"
+                        android:textColor="@color/danger_red" />
+
+                <TextView
+                        android:text="These actions cannot be undone. Proceed with caution."
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:id="@+id/dangerZoneWarning"
+                        android:paddingLeft="@dimen/padding_standard"
+                        android:paddingRight="@dimen/padding_standard"
+                        android:layout_marginTop="@dimen/margin_small"
+                        android:textSize="@dimen/text_size_body"
+                        android:textColor="@color/text_secondary" />
+
+                <Button
+                        android:text="Edit Project"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:id="@+id/editProjectButton"
+                        android:layout_marginLeft="@dimen/margin_standard"
+                        android:layout_marginRight="@dimen/margin_standard"
+                        android:layout_marginTop="@dimen/margin_medium"
+                        android:backgroundTint="@color/warning_orange" />
+
+                <Button
+                        android:text="Delete Project"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:id="@+id/deleteProjectButton"
+                        android:layout_marginLeft="@dimen/margin_standard"
+                        android:layout_marginRight="@dimen/margin_standard"
+                        android:layout_marginTop="@dimen/margin_small"
+                        android:backgroundTint="@color/danger_red" />
+            </LinearLayout>
+        </LinearLayout>
+    </ScrollView>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/activity_project_edit.xml

@@ -0,0 +1,97 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/main"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ui.ProjectEditActivity">
+
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+        android:id="@+id/returnActionButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginEnd="@dimen/fab_margin_end"
+        android:layout_marginBottom="@dimen/fab_margin_bottom"
+        android:contentDescription="Return"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:srcCompat="@android:drawable/ic_menu_revert" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical"
+        android:paddingBottom="@dimen/bottom_padding_for_fab">
+
+        <TextView
+            android:id="@+id/titleLabel"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Edit Project"
+            android:textSize="@dimen/text_size_title"
+            android:textStyle="bold"
+            android:padding="@dimen/padding_standard"
+            android:layout_marginTop="@dimen/margin_tiny" />
+
+        <TextView
+            android:id="@+id/projectNameLabel"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Project Name:"
+            android:textSize="@dimen/text_size_subtitle"
+            android:textStyle="bold"
+            android:layout_marginTop="@dimen/margin_medium"
+            android:paddingLeft="@dimen/padding_standard"
+            android:paddingRight="@dimen/padding_standard" />
+
+        <EditText
+            android:id="@+id/projectNameInput"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:hint="Enter project name"
+            android:inputType="text"
+            android:padding="@dimen/padding_standard"
+            android:layout_marginLeft="@dimen/margin_standard"
+            android:layout_marginRight="@dimen/margin_standard"
+            android:layout_marginTop="@dimen/margin_small" />
+
+        <TextView
+            android:id="@+id/projectDescriptionLabel"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Description:"
+            android:textSize="@dimen/text_size_subtitle"
+            android:textStyle="bold"
+            android:layout_marginTop="@dimen/margin_medium"
+            android:paddingLeft="@dimen/padding_standard"
+            android:paddingRight="@dimen/padding_standard" />
+
+        <EditText
+            android:id="@+id/projectDescriptionInput"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:hint="Enter project description"
+            android:inputType="textMultiLine"
+            android:minLines="3"
+            android:maxLines="5"
+            android:padding="@dimen/padding_standard"
+            android:layout_marginLeft="@dimen/margin_standard"
+            android:layout_marginRight="@dimen/margin_standard"
+            android:layout_marginTop="@dimen/margin_small"
+            android:gravity="start|top" />
+
+        <Button
+            android:id="@+id/saveProjectButton"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Save Changes"
+            android:backgroundTint="@color/primary_green"
+            android:layout_marginTop="@dimen/margin_large"
+            android:layout_marginLeft="@dimen/margin_standard"
+            android:layout_marginRight="@dimen/margin_standard" />
+
+    </LinearLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>
+

app/src/main/res/layout/activity_task_add.xml

@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/main"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ui.TaskAddActivity">
+
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+        android:id="@+id/returnActionButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginEnd="@dimen/fab_margin_end"
+        android:layout_marginBottom="@dimen/fab_margin_bottom"
+        android:contentDescription="Return"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:srcCompat="@android:drawable/ic_menu_revert" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical"
+        android:paddingBottom="@dimen/bottom_padding_for_fab">
+
+        <TextView
+            android:id="@+id/titleLabel"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Add New Task"
+            android:textSize="@dimen/text_size_title"
+            android:textStyle="bold"
+            android:padding="@dimen/padding_standard"
+            android:layout_marginTop="@dimen/margin_tiny" />
+
+        <TextView
+            android:id="@+id/taskTitleLabel"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Title:"
+            android:textSize="@dimen/text_size_subtitle"
+            android:textStyle="bold"
+            android:layout_marginTop="@dimen/margin_medium"
+            android:paddingLeft="@dimen/padding_standard"
+            android:paddingRight="@dimen/padding_standard" />
+
+        <EditText
+            android:id="@+id/taskTitleInput"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:hint="Enter task title"
+            android:inputType="text"
+            android:padding="@dimen/padding_standard"
+            android:layout_marginLeft="@dimen/margin_standard"
+            android:layout_marginRight="@dimen/margin_standard"
+            android:layout_marginTop="@dimen/margin_small" />
+
+        <TextView
+            android:id="@+id/taskDescriptionLabel"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Description:"
+            android:textSize="@dimen/text_size_subtitle"
+            android:textStyle="bold"
+            android:layout_marginTop="@dimen/margin_medium"
+            android:paddingLeft="@dimen/padding_standard"
+            android:paddingRight="@dimen/padding_standard" />
+
+        <EditText
+                android:id="@+id/taskDescriptionInput"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:hint="Enter task description"
+                android:inputType="textMultiLine"
+                android:minLines="3"
+                android:maxLines="5"
+                android:padding="@dimen/padding_standard"
+                android:layout_marginLeft="@dimen/margin_standard"
+                android:layout_marginRight="@dimen/margin_standard"
+                android:layout_marginTop="@dimen/margin_small"
+                android:gravity="start|top" />
+
+        <TextView
+            android:id="@+id/taskStatusLabel"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Status:"
+            android:textSize="@dimen/text_size_subtitle"
+            android:textStyle="bold"
+            android:layout_marginTop="@dimen/margin_medium"
+            android:paddingLeft="@dimen/padding_standard"
+            android:paddingRight="@dimen/padding_standard" />
+
+        <Spinner
+            android:id="@+id/taskStatusSpinner"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:entries="@array/task_status_options"
+            android:padding="@dimen/padding_standard"
+            android:layout_marginLeft="@dimen/margin_standard"
+            android:layout_marginRight="@dimen/margin_standard"
+            android:layout_marginTop="@dimen/margin_small" />
+
+        <Button
+            android:id="@+id/createTaskButton"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Create Task"
+            android:backgroundTint="@color/primary_green"
+            android:layout_marginTop="@dimen/margin_large"
+            android:layout_marginLeft="@dimen/margin_standard"
+            android:layout_marginRight="@dimen/margin_standard" />
+
+    </LinearLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/activity_task_edit.xml

@@ -0,0 +1,127 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/main"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ui.TaskEditActivity">
+
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+        android:id="@+id/returnActionButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginEnd="@dimen/fab_margin_end"
+        android:layout_marginBottom="@dimen/fab_margin_bottom"
+        android:contentDescription="Return"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:srcCompat="@android:drawable/ic_menu_revert" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical"
+        android:paddingBottom="@dimen/bottom_padding_for_fab">
+
+        <TextView
+            android:id="@+id/titleLabel"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Edit Task"
+            android:textSize="@dimen/text_size_title"
+            android:textStyle="bold"
+            android:padding="@dimen/padding_standard"
+            android:layout_marginTop="@dimen/margin_tiny" />
+
+        <TextView
+            android:id="@+id/taskTitleLabel"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Title:"
+            android:textSize="@dimen/text_size_subtitle"
+            android:textStyle="bold"
+            android:layout_marginTop="@dimen/margin_medium"
+            android:paddingLeft="@dimen/padding_standard"
+            android:paddingRight="@dimen/padding_standard" />
+
+        <EditText
+            android:id="@+id/taskTitleInput"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:hint="Enter task title"
+            android:inputType="text"
+            android:padding="@dimen/padding_standard"
+            android:layout_marginLeft="@dimen/margin_standard"
+            android:layout_marginRight="@dimen/margin_standard"
+            android:layout_marginTop="@dimen/margin_small" />
+
+        <TextView
+            android:id="@+id/taskDescriptionLabel"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Description:"
+            android:textSize="@dimen/text_size_subtitle"
+            android:textStyle="bold"
+            android:layout_marginTop="@dimen/margin_medium"
+            android:paddingLeft="@dimen/padding_standard"
+            android:paddingRight="@dimen/padding_standard" />
+
+        <EditText
+                android:id="@+id/taskDescriptionInput"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:hint="Enter task description"
+                android:inputType="textMultiLine"
+                android:minLines="3"
+                android:maxLines="5"
+                android:padding="@dimen/padding_standard"
+                android:layout_marginLeft="@dimen/margin_standard"
+                android:layout_marginRight="@dimen/margin_standard"
+                android:layout_marginTop="@dimen/margin_small"
+                android:gravity="start|top" />
+
+        <TextView
+            android:id="@+id/taskStatusLabel"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Status:"
+            android:textSize="@dimen/text_size_subtitle"
+            android:textStyle="bold"
+            android:layout_marginTop="@dimen/margin_medium"
+            android:paddingLeft="@dimen/padding_standard"
+            android:paddingRight="@dimen/padding_standard" />
+
+        <Spinner
+            android:id="@+id/taskStatusSpinner"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:entries="@array/task_status_options"
+            android:padding="@dimen/padding_standard"
+            android:layout_marginLeft="@dimen/margin_standard"
+            android:layout_marginRight="@dimen/margin_standard"
+            android:layout_marginTop="@dimen/margin_small" />
+
+        <Button
+            android:id="@+id/saveTaskButton"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Save Changes"
+            android:backgroundTint="@color/primary_green"
+            android:layout_marginTop="@dimen/margin_large"
+            android:layout_marginLeft="@dimen/margin_standard"
+            android:layout_marginRight="@dimen/margin_standard" />
+
+        <Button
+            android:id="@+id/deleteTaskButton"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Delete Task"
+            android:backgroundTint="@color/danger_red"
+            android:layout_marginTop="@dimen/margin_medium"
+            android:layout_marginLeft="@dimen/margin_standard"
+            android:layout_marginRight="@dimen/margin_standard" />
+
+    </LinearLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/item_collaborator.xml

@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        xmlns:tools="http://schemas.android.com/tools"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:gravity="center_horizontal|end"
+        android:layout_margin="8dp"
+        android:id="@+id/linearLayout">
+
+
+    <LinearLayout
+            android:orientation="vertical"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintVertical_bias="1.0"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            android:layout_marginStart="4dp">
+
+        <TextView
+                android:id="@+id/collaboratorNameText"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="Collaborator Name"
+                android:textSize="18dp"
+                android:textStyle="bold" />
+
+        <TextView
+                android:text="example@email.com"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:id="@+id/collaboratorEmailText"
+                android:textStyle="italic" />
+    </LinearLayout>
+
+    <Button
+            android:id="@+id/removeCollaboratorButton"
+            android:layout_width="50dp"
+            android:layout_height="wrap_content"
+            style="@style/Widget.Material3.Button.Icon"
+            app:icon="@android:drawable/ic_delete"
+            android:backgroundTint="@color/transparent_red"
+            app:iconTint="@color/danger_red"
+            android:layout_marginEnd="4dp"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintVertical_bias="0.333" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/item_task.xml

@@ -0,0 +1,79 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        xmlns:tools="http://schemas.android.com/tools"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:gravity="start|top"
+        android:layout_margin="4dp"
+        android:id="@+id/linearLayout2">
+
+    <LinearLayout
+            android:orientation="vertical"
+            android:layout_width="331dp"
+            android:layout_height="50dp"
+            android:id="@+id/linearLayout3"
+            tools:layout_editor_absoluteY="4dp"
+            tools:layout_editor_absoluteX="4dp">
+
+        <TextView
+                android:id="@+id/taskTitleText"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="Task Title"
+                android:textSize="20dp"
+                android:textStyle="bold"
+                android:paddingBottom="4dp" />
+
+        <TextView
+                android:id="@+id/taskDescriptionText"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_weight="2"
+                android:text="Task Description"
+                android:textSize="14sp" />
+
+    </LinearLayout>
+
+    <LinearLayout
+            android:orientation="horizontal"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:id="@+id/taskStatusLinearLayout"
+            app:layout_constraintTop_toBottomOf="@+id/linearLayout3"
+            app:layout_constraintStart_toStartOf="parent"
+            android:layout_margin="4dp">
+
+        <TextView
+                android:text="STATUS:"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:id="@+id/taskStatusLabel"
+                android:textStyle="bold"
+                android:textAlignment="textStart"
+                android:gravity="start|center_vertical" />
+
+        <Spinner
+                android:id="@+id/taskStatusDropdown"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:entries="@array/task_status_options"
+                android:layout_marginStart="16dp"
+                android:spinnerMode="dropdown"
+                android:dropDownWidth="wrap_content" />
+    </LinearLayout>
+
+    <Button
+            android:layout_width="50dp"
+            android:layout_height="wrap_content"
+            android:id="@+id/editTaskButton"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintVertical_bias="0.5"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:icon="@android:drawable/ic_menu_edit"
+            style="@style/Widget.Material3.Button.IconButton"
+            app:iconTint="#0C0808" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/values/arrays.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string-array name="task_status_options">
+        <item>Pending</item>
+        <item>In progress</item>
+        <item>Completed</item>
+        <item>Stashed</item>
+        <item>Failed</item>
+    </string-array>
+</resources>

app/src/main/res/values/colors.xml

@@ -2,4 +2,15 @@
 <resources>
     <color name="black">#FF000000</color>
     <color name="white">#FFFFFFFF</color>
+
+    <!-- Primary Colors -->
+    <color name="primary_green">#469E29</color>
+    <color name="danger_red">#FF0000</color>
+    <color name="warning_orange">#FF9800</color>
+
+    <!-- Text Colors -->
+    <color name="text_secondary">#666666</color>
+
+    <!-- Background Colors -->
+    <color name="transparent_red">#24FF5757</color>
 </resources>

app/src/main/res/values/dimens.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Paddings -->
+    <dimen name="padding_standard">12dp</dimen>
+    <dimen name="padding_small">8dp</dimen>
+
+    <!-- Margins -->
+    <dimen name="margin_standard">12dp</dimen>
+    <dimen name="margin_medium">16dp</dimen>
+    <dimen name="margin_large">24dp</dimen>
+    <dimen name="margin_xlarge">32dp</dimen>
+    <dimen name="margin_small">8dp</dimen>
+    <dimen name="margin_tiny">4dp</dimen>
+
+    <!-- FAB Margins -->
+    <dimen name="fab_margin_bottom">17dp</dimen>
+    <dimen name="fab_margin_end">18dp</dimen>
+
+    <!-- Bottom Padding for FAB -->
+    <dimen name="bottom_padding_for_fab">80dp</dimen>
+
+    <!-- Text Sizes -->
+    <dimen name="text_size_title">24sp</dimen>
+    <dimen name="text_size_subtitle">18sp</dimen>
+    <dimen name="text_size_body">14sp</dimen>
+</resources>
+