Added backup feature

Author: Jizzu

.idea/caches/build_file_checksums.ser

@@ -7,8 +7,8 @@ android {
         applicationId "apps.jizzu.simpletodo"
         minSdkVersion 19
         targetSdkVersion 27
-        versionCode 4
-        versionName "1.0"
+        versionCode 5
+        versionName "1.1"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
     buildTypes {

.idea/codeStyles/Project.xml

@@ -3,6 +3,8 @@
     package="apps.jizzu.simpletodo">
 
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
 
     <application
         android:allowBackup="true"

.idea/misc.xml

@@ -38,13 +38,13 @@
  */
 public class AddTaskActivity extends AppCompatActivity implements DatePickerDialog.OnDateSetListener, TimePickerDialog.OnTimeSetListener {
 
-    EditText mTitle;
-    TextInputLayout mTaskTitleLayout;
-    RelativeLayout mReminderLayout;
-    Calendar mCalendar;
-    EditText mDate;
-    EditText mTime;
-    SwitchCompat mReminderSwitch;
+    private EditText mTitle;
+    private TextInputLayout mTaskTitleLayout;
+    private RelativeLayout mReminderLayout;
+    private Calendar mCalendar;
+    private EditText mDate;
+    private EditText mTime;
+    private SwitchCompat mReminderSwitch;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -196,6 +196,14 @@ public void onClick(View view) {
         });
     }
 
+    /**
+     * Method for hiding the soft keyboard.
+     */
+    private void hideKeyboard(EditText editText) {
+        InputMethodManager imm = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
+        imm.hideSoftInputFromWindow(editText.getWindowToken(), 0);
+    }
+
     /**
      * Hides the soft keyboard when the user clicks on the home button.
      */
@@ -205,14 +213,6 @@ protected void onStop() {
         hideKeyboard(mTitle);
     }
 
-    /**
-     * Method for hiding the soft keyboard.
-     */
-    public void hideKeyboard(EditText editText) {
-        InputMethodManager imm = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
-        imm.hideSoftInputFromWindow(editText.getWindowToken(), 0);
-    }
-
     /**
      * The handler for clicking the close button in the toolbar.
      */

app/build.gradle

@@ -8,6 +8,7 @@
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
+import android.os.Build;
 import android.support.design.widget.TextInputLayout;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
@@ -46,18 +47,19 @@
  */
 public class EditTaskActivity extends AppCompatActivity implements DatePickerDialog.OnDateSetListener, TimePickerDialog.OnTimeSetListener {
 
-    EditText mTitle;
-    TextInputLayout mTaskTitleLayout;
-    RelativeLayout mReminderLayout;
-    Calendar mCalendar;
-    EditText mDateEditText;
-    EditText mTimeEditText;
-    SwitchCompat mReminderSwitch;
-    RecyclerViewAdapter mAdapter;
-    long mId;
-    long mDate;
-    int mPosition;
-    long mTimeStamp;
+    private Context mContext;
+    private EditText mTitle;
+    private TextInputLayout mTaskTitleLayout;
+    private RelativeLayout mReminderLayout;
+    private Calendar mCalendar;
+    private EditText mDateEditText;
+    private EditText mTimeEditText;
+    private SwitchCompat mReminderSwitch;
+    private RecyclerViewAdapter mAdapter;
+    private long mId;
+    private long mDate;
+    private int mPosition;
+    private long mTimeStamp;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -87,6 +89,7 @@ protected void onCreate(Bundle savedInstanceState) {
         TextView reminderText = findViewById(R.id.tvSetReminder);
 
         MainActivity.mActivityIsShown = true;
+        mContext = getApplicationContext();
 
         // Get the resolution of the user's screen
         Display d = ((WindowManager) this.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
@@ -228,7 +231,7 @@ public void onClick(View view) {
                 } else if (mTitle.getText().toString().trim().length() == 0) {
                     mTitle.setError(getString(R.string.error_spaces));
                 } else {
-                    DBHelper dbHelper = DBHelper.getInstance(MainActivity.mContext);
+                    DBHelper dbHelper = DBHelper.getInstance(mContext);
 
                     ModelTask task = new ModelTask(mId, mTitle.getText().toString(), mDate, mPosition, mTimeStamp);
 
@@ -246,7 +249,7 @@ public void onClick(View view) {
 
                     if (task.getDate() != 0 && task.getDate() <= Calendar.getInstance().getTimeInMillis()) {
                         task.setDate(0);
-                        Toast.makeText(MainActivity.mContext, getString(R.string.toast_incorrect_time), Toast.LENGTH_SHORT).show();
+                        Toast.makeText(mContext, getString(R.string.toast_incorrect_time), Toast.LENGTH_SHORT).show();
                     } else if (task.getDate() != 0) {
                         AlarmHelper alarmHelper = AlarmHelper.getInstance();
                         alarmHelper.setAlarm(task);
@@ -297,7 +300,12 @@ public boolean onOptionsItemSelected(MenuItem item) {
                 break;
 
             case R.id.action_delete:
-                AlertDialog.Builder alertDialog = new AlertDialog.Builder(this);
+                AlertDialog.Builder alertDialog;
+                if (Build.VERSION.SDK_INT == Build.VERSION_CODES.KITKAT) {
+                    alertDialog = new AlertDialog.Builder(this);
+                } else {
+                    alertDialog = new AlertDialog.Builder(this, R.style.DialogTheme);
+                }
                 alertDialog.setTitle(R.string.dialog_title);
                 alertDialog.setMessage(R.string.dialog_message);
                 alertDialog.setPositiveButton(R.string.action_delete, new DialogInterface.OnClickListener() {

app/src/main/AndroidManifest.xml

@@ -56,33 +56,33 @@
 import static android.content.ContentValues.TAG;
 
 
-public class MainActivity extends AppCompatActivity implements RecyclerViewAdapter.UpdateNotificationDataCallback {
+public class MainActivity extends AppCompatActivity implements RecyclerViewAdapter.AdapterCallback {
 
+    private Context mContext;
     private RecyclerViewEmptySupport mRecyclerView;
-    public RecyclerViewAdapter mAdapter;
+    private RecyclerViewAdapter mAdapter;
     private RelativeLayout mEmptyView;
     private DBHelper mHelper;
-    public static FloatingActionButton mFab;
     private PreferenceHelper mPreferenceHelper;
     private RecyclerView.LayoutManager mLayoutManager;
-    public static boolean mSearchViewIsOpen;
     private MaterialSearchView mSearchView;
     private NotificationManager mNotificationManager;
+    private FloatingActionButton mFab;
+
+    public static boolean mSearchViewIsOpen;
     public static boolean mShowAnimation;
     public static boolean mActivityIsShown;
 
-    // TODO: Find better way to get the MainActivity context.
-    public static Context mContext;
-
-
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
         // Set up "What's New" screen
         WhatsNew whatsNew = WhatsNew.newInstance(
-                new WhatsNewItem(getString(R.string.whats_new_item_1_title), getString(R.string.whats_new_item_1_text))
+                new WhatsNewItem(getString(R.string.whats_new_item_1_title), getString(R.string.whats_new_item_1_text)),
+                new WhatsNewItem(getString(R.string.whats_new_item_2_title), getString(R.string.whats_new_item_2_text)),
+                new WhatsNewItem(getString(R.string.whats_new_item_3_title), getString(R.string.whats_new_item_3_text))
         );
         whatsNew.setTitleColor(ContextCompat.getColor(this, R.color.colorAccent));
         whatsNew.setTitleText(getString(R.string.whats_new_title));
@@ -92,6 +92,7 @@ protected void onCreate(Bundle savedInstanceState) {
         whatsNew.presentAutomatically(MainActivity.this);
 
         mContext = MainActivity.this;
+        mSearchViewIsOpen = false;
         setTitle("");
 
         // Initialize ALARM_SERVICE
@@ -108,6 +109,7 @@ protected void onCreate(Bundle savedInstanceState) {
 
         mEmptyView = findViewById(R.id.empty);
 
+        mRecyclerView = new RecyclerViewEmptySupport(mContext);
         mRecyclerView = findViewById(R.id.tasksList);
         mRecyclerView.setHasFixedSize(true);
 
@@ -230,7 +232,7 @@ public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
     /**
      * Finds tasks by the title in the database.
      */
-    public void findTasks(String title) {
+    private void findTasks(String title) {
         mSearchViewIsOpen = true;
         Log.d(TAG, "findTasks: SearchView Title = " + title);
         mAdapter.removeAllItems();
@@ -250,7 +252,7 @@ public void findTasks(String title) {
     /**
      * Reads all tasks from the database and adds them to the RecyclerView list.
      */
-    public void addTasksFromDB() {
+    private void addTasksFromDB() {
         mAdapter.removeAllItems();
         List<ModelTask> taskList = mHelper.getAllTasks();
 
@@ -272,7 +274,7 @@ private void startEmptyViewAnimation() {
     /**
      * Updates widget data.
      */
-    public void updateWidget() {
+    private void updateWidget() {
         Log.d(TAG, "WIDGET IS UPDATED!");
         Intent intent = new Intent(this, WidgetProvider.class);
         intent.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
@@ -285,7 +287,7 @@ public void updateWidget() {
     /**
      * Updates general notification data.
      */
-    public void updateGeneralNotification() {
+    private void updateGeneralNotification() {
         if (mPreferenceHelper.getBoolean(PreferenceHelper.GENERAL_NOTIFICATION_IS_ON)) {
             if (mAdapter.getItemCount() != 0) {
                 showGeneralNotification();
@@ -300,7 +302,7 @@ public void updateGeneralNotification() {
     /**
      * Set up and show general notification.
      */
-    public void showGeneralNotification() {
+    private void showGeneralNotification() {
         StringBuilder stringBuilder = new StringBuilder();
 
         Intent resultIntent = new Intent(this, MainActivity.class);
@@ -365,7 +367,7 @@ public void showGeneralNotification() {
     /**
      * Removes general notification.
      */
-    public void removeGeneralNotification() {
+    private void removeGeneralNotification() {
         if (mNotificationManager != null) {
             mNotificationManager.cancel(1);
         }
@@ -379,6 +381,11 @@ public void updateData() {
         updateGeneralNotification();
     }
 
+    @Override
+    public void showFAB() {
+        mFab.show();
+    }
+
     @Override
     public boolean onCreateOptionsMenu(Menu menu) {
         getMenuInflater().inflate(R.menu.menu, menu);
@@ -428,6 +435,8 @@ protected void onStop() {
     @Override
     protected void onResume() {
         super.onResume();
+
+        //addTasksFromDB();
         mFab.setVisibility(View.GONE);
 
         if (mPreferenceHelper.getBoolean(PreferenceHelper.ANIMATION_IS_ON)) {

app/src/main/java/apps/jizzu/simpletodo/activity/AddTaskActivity.java

@@ -16,7 +16,7 @@ public class ListItemTouchHelper extends ItemTouchHelper.Callback {
     /**
      * Constructor for mAdapter initialization.
      */
-    public ListItemTouchHelper(RecyclerViewAdapter adapter, RecyclerView recyclerView) {
+    protected ListItemTouchHelper(RecyclerViewAdapter adapter, RecyclerView recyclerView) {
         mAdapter = adapter;
         mRecyclerView = recyclerView;
     }