add empty list display

app/src/main/java/ch/ost/rj/mge/miniproject/tasktracker/activities/MainActivity.kt

@@ -3,10 +3,8 @@ package ch.ost.rj.mge.miniproject.tasktracker.activities
 import android.os.Bundle
 import android.widget.FrameLayout
 import androidx.appcompat.app.AppCompatActivity
-import androidx.recyclerview.widget.LinearLayoutManager
-import androidx.recyclerview.widget.RecyclerView
 import ch.ost.rj.mge.miniproject.tasktracker.R
-import ch.ost.rj.mge.miniproject.tasktracker.adapters.TaskListAdapter
+import ch.ost.rj.mge.miniproject.tasktracker.fragments.TaskListEmptyFragment
 import ch.ost.rj.mge.miniproject.tasktracker.fragments.TaskListFragment
 import ch.ost.rj.mge.miniproject.tasktracker.models.Task
 import ch.ost.rj.mge.miniproject.tasktracker.repositories.TaskRepository
@@ -16,6 +14,8 @@ class MainActivity : AppCompatActivity() {
     private var taskRepository = TaskRepository()
 
     private lateinit var listFragment: TaskListFragment
+    private lateinit var listEmptyFragment: TaskListEmptyFragment
+
     private lateinit var taskListContainer: FrameLayout
 
     private lateinit var btnAddTask: FloatingActionButton
@@ -34,11 +34,16 @@ class MainActivity : AppCompatActivity() {
 
 
         val tasks: List<Task> = taskRepository.getTasks()
-        listFragment = TaskListFragment.newInstance(tasks)
 
         if (tasks.isNotEmpty()) {
+            listFragment = TaskListFragment.newInstance(tasks)
+            supportFragmentManager.beginTransaction()
+                .replace(R.id.fltTaskListContainer, listFragment)
+                .commit()
+        } else {
+            listEmptyFragment = TaskListEmptyFragment.newInstance()
             supportFragmentManager.beginTransaction()
-                .add(R.id.fltTaskListContainer, listFragment)
+                .replace(R.id.fltTaskListContainer, listEmptyFragment)
                 .commit()
         }
     }

app/src/main/java/ch/ost/rj/mge/miniproject/tasktracker/fragments/TaskListEmptyFragment.kt

+package ch.ost.rj.mge.miniproject.tasktracker.fragments
+
+import android.os.Bundle
+import androidx.fragment.app.Fragment
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import ch.ost.rj.mge.miniproject.tasktracker.R
+
+
+/**
+ * A simple [Fragment] subclass.
+ * Use the [TaskListEmptyFragment.newInstance] factory method to
+ * create an instance of this fragment.
+ */
+class TaskListEmptyFragment : Fragment() {
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.fragment_task_list_empty, container, false)
+    }
+
+    companion object {
+        /**
+         * Use this factory method to create a new instance of
+         * this fragment using the provided parameters.
+         *
+         * @return A new instance of fragment TaskListEmptyFragment.
+         */
+        @JvmStatic
+        fun newInstance() = TaskListEmptyFragment().apply { }
+    }
+}
\ No newline at end of file

app/src/main/java/ch/ost/rj/mge/miniproject/tasktracker/repositories/TaskRepository.kt

@@ -6,6 +6,12 @@ class TaskRepository {
 
     fun getTasks(): ArrayList<Task> {
         val tasks = ArrayList<Task>()
+
+//        val testTask = Task()
+//        testTask.name = "Test"
+//
+//        tasks.add(testTask)
+
         return tasks
     }
 

app/src/main/res/drawable/ic_baseline_done_outline_24.xml

+<vector android:height="24dp" android:tint="#FFFFFF"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M19.77,5.03l1.4,1.4L8.43,19.17l-5.6,-5.6 1.4,-1.4 4.2,4.2L19.77,5.03m0,-2.83L8.43,13.54l-4.2,-4.2L0,13.57 8.43,22 24,6.43 19.77,2.2z"/>
+</vector>

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

+<?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="match_parent"
+    tools:context=".fragments.TaskListEmptyFragment" >
+
+    <ImageView
+        tools:ignore="ContentDescription"
+        android:id="@+id/imageView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="128dp"
+        android:scaleType="centerInside"
+        android:scaleX="2"
+        android:scaleY="2"
+        android:src="@drawable/ic_baseline_done_outline_24"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_optimizationLevel="dimensions"
+        app:tint="@android:color/tertiary_text_light" />
+
+    <TextView
+        android:id="@+id/txtTaskListEmpty"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:text="@string/txtTaskListEmpty"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/imageView" />
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file

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

 <resources>
     <string name="app_name">TaskTracker</string>
+
+    <string name="txtTaskListEmpty">Alles erledigt</string>
 </resources>
\ No newline at end of file