Bug corrections:

- fast switching between tabs crash on getResources
 - closing app while SnackBar was visible crashed
 - changing list name then clicking upper left arrow did not save change

DoNExt/app/src/main/java/com/wismna/geoffroy/donext/adapters/TaskListRecyclerViewAdapter.java

@@ -26,7 +26,7 @@ public class TaskListRecyclerViewAdapter extends RecyclerView.Adapter<TaskListRe
     implements TaskListTouchHelper.TaskListTouchHelperAdapter {
 
     public interface TaskListRecyclerViewAdapterListener {
-        void onNameChangeFocus(TaskList taskList);
+        void onEditTextLoseFocus(TaskList taskList);
         void onClickDeleteButton(int position, long id);
         void onItemMove(long fromTaskId, long toTaskId, int fromPosition, int toPosition);
         void onStartDrag(RecyclerView.ViewHolder viewHolder);
@@ -75,7 +75,7 @@ public class TaskListRecyclerViewAdapter extends RecyclerView.Adapter<TaskListRe
                     holder.mItem.setName(name);
 
                     update(holder.mItem, position);
-                    mListener.onNameChangeFocus(holder.mItem);
+                    mListener.onEditTextLoseFocus(holder.mItem);
                 }
             }
         });

DoNExt/app/src/main/java/com/wismna/geoffroy/donext/database/TaskDataAccess.java

@@ -65,11 +65,6 @@ public class TaskDataAccess {
         return newTask;
     }
 
-    public void deleteTask(long taskId) {
-        database.delete(DatabaseHelper.TASKS_TABLE_NAME,
-                DatabaseHelper.COLUMN_ID + " = " + taskId, null);
-    }
-
     public List<Task> getAllTasks(long id) {
         List<Task> tasks = new ArrayList<>();
 
@@ -107,6 +102,14 @@ public class TaskDataAccess {
         return database.update(DatabaseHelper.TASKS_TABLE_NAME, contentValues, DatabaseHelper.COLUMN_ID + " = " + id, null);
     }
 
+    public int deleteTask(long id) {
+        /*database.delete(DatabaseHelper.TASKS_TABLE_NAME,
+                DatabaseHelper.COLUMN_ID + " = " + taskId, null);*/
+        ContentValues contentValues = new ContentValues();
+        contentValues.put(DatabaseHelper.TASKS_COLUMN_DELETED, 1);
+        return database.update(DatabaseHelper.TASKS_TABLE_NAME, contentValues, DatabaseHelper.COLUMN_ID + " = " + id, null);
+    }
+
     private Task cursorToTask(Cursor cursor) {
         Task task = new Task();
         task.setId(cursor.getLong(0));

DoNExt/app/src/main/java/com/wismna/geoffroy/donext/fragments/TaskListsFragment.java

@@ -13,6 +13,7 @@ import android.support.v7.widget.helper.ItemTouchHelper;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.inputmethod.InputMethodManager;
 import android.widget.Button;
 import android.widget.CheckBox;
 import android.widget.EditText;
@@ -84,6 +85,7 @@ public class TaskListsFragment extends Fragment implements
 
     @Override
     public void onPause() {
+        clearFocus();
         super.onPause();
         taskListDataAccess.close();
     }
@@ -91,6 +93,7 @@ public class TaskListsFragment extends Fragment implements
     @Override
     public void onResume() {
         super.onResume();
+        clearFocus();
         taskListDataAccess.open();
     }
 
@@ -102,10 +105,11 @@ public class TaskListsFragment extends Fragment implements
         int maxTaskLists = Integer.valueOf(maxTaskListsString);
         if (taskListCount >= maxTaskLists) layout.setVisibility(View.GONE);
         else layout.setVisibility(View.VISIBLE);
+        clearFocus();
     }
 
     @Override
-    public void onNameChangeFocus(TaskList taskList) {
+    public void onEditTextLoseFocus(TaskList taskList) {
         taskListDataAccess.updateName(taskList.getId(), taskList.getName());
     }
 
@@ -163,6 +167,18 @@ public class TaskListsFragment extends Fragment implements
         toggleVisibleCreateNewTaskListLayout(mView);
     }
 
+    /** Helper method to clear focus by giving it to the parent layout */
+    private void clearFocus() {
+        View view = getView();
+        if (view != null) {
+            view.requestFocus();
+
+            // Hide keyboard
+            InputMethodManager inputMethodManager = (InputMethodManager) getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
+            inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0);
+        }
+    }
+
     public class GetTaskListsTask extends AsyncTask<TaskListDataAccess, Void, List<TaskList>> {
         @Override
         protected List<TaskList> doInBackground(TaskListDataAccess... params) {

DoNExt/app/src/main/java/com/wismna/geoffroy/donext/fragments/TasksFragment.java

@@ -140,7 +140,8 @@ public class TasksFragment extends Fragment implements
                 // Update total tasks
                 int totalTasks = taskRecyclerViewAdapter.getItemCount();
                 TextView totalTasksView = (TextView) view.findViewById(R.id.total_task_count);
-                if (totalTasks == 0) totalTasksView.setText(getResources().getText(R.string.task_no_tasks));
+                // isAdded is to prevent an IllegalStateException when fast switching between tabs
+                if (totalTasks == 0 && isAdded()) totalTasksView.setText(getResources().getText(R.string.task_no_tasks));
                 else totalTasksView.setText(String.valueOf(totalTasks + " task" + (totalTasks > 1 ? "s" : "")));
 
                 // Update remaining tasks
@@ -161,8 +162,8 @@ public class TasksFragment extends Fragment implements
     }
 
     @Override
-    public void onPause() {
-        super.onPause();
+    public void onDestroy() {
+        super.onDestroy();
         taskDataAccess.close();
     }
 

DoNExt/app/src/main/res/layout/fragment_tasklists.xml

@@ -1,8 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/new_task_list_parent_layout"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:focusableInTouchMode="true"
+    android:descendantFocusability="beforeDescendants"
     android:paddingBottom="@dimen/activity_vertical_margin"
     android:paddingLeft="@dimen/activity_horizontal_margin"
     android:paddingRight="@dimen/activity_horizontal_margin"