Create ViewModel for TasksList.

app/src/main/java/com/example/pa/ui/todolist/TasksListViewModel.kt

@@ -0,0 +1,30 @@
+package com.example.pa.ui.todolist
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import androidx.lifecycle.asLiveData
+import androidx.lifecycle.viewModelScope
+import com.example.pa.data.DatabaseRepository
+import com.example.pa.data.local.Tasks
+import kotlinx.coroutines.launch
+
+class TasksListViewModel(private val repository: DatabaseRepository): ViewModel() {
+    // Use LiveData to return the tasks
+    val allTasks: LiveData<List<Tasks>> = repository.allTasks.asLiveData()
+
+    fun insertTask(task: Tasks) = viewModelScope.launch {
+        repository.insert(task)
+    }
+}
+
+class TasksListViewModelFactory(private val repository: DatabaseRepository) :
+    ViewModelProvider.Factory {
+    override fun <T : ViewModel> create(modelClass: Class<T>): T {
+        if (modelClass.isAssignableFrom(TasksListViewModel::class.java)) {
+            @Suppress("UNCHECKED_CAST")
+            return TasksListViewModel(repository) as T
+        }
+        throw IllegalArgumentException("Unknown ViewModel class")
+    }
+}