title: Switch button to turn on notifications
body: <p>hope you could help me here!
  I want to make a switch button that turns on a function of push daily push notification. how do I do that?</p>
  
  <p>the switch button is on the Settings fragment</p>
  
  <p>My MainActivity.java:</p>
  
  <pre><code>public class MainActivity extends AppCompatActivity
      implements NavigationView.OnNavigationItemSelectedListener {
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
  
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
      setSupportActionBar(toolbar);
  
      DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
      ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
              this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
      drawer.addDrawerListener(toggle);
      toggle.syncState();
  
      NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
      navigationView.setNavigationItemSelectedListener(this);
  
      displayView(R.id.nav_home);
  
  
  
  }
  
  
  @Override
  public void onBackPressed() {
      DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
      if (drawer.isDrawerOpen(GravityCompat.START)) {
          drawer.closeDrawer(GravityCompat.START);
          return;
      }
  
      if (getSupportFragmentManager().findFragmentById(R.id.content_main) instanceof Article) {
          ((Article) getSupportFragmentManager().findFragmentById(R.id.content_main)).handleOnBackPress();
          return;
      }
  
      if (getSupportFragmentManager().getBackStackEntryCount() == 0) {
          displayView(R.id.nav_home);
      } else {
          super.onBackPressed();
  
      }
  }
  
  private void displayView(int itemId) {
      Fragment fragment = null;
  
      switch (itemId) {
          case R.id.nav_home:
              fragment = new Article();
              break;
          case R.id.nav_Recipes:
              fragment = new RecipesMain();
              break;
          case R.id.nav_Converter:
              fragment = new Converter();
              break;
          case R.id.nav_Videos:
              fragment = new Videos();
              break;
          case R.id.nav_Tracking:
              fragment = new Tracking();
              break;
          case R.id.nav_TrainerMenu:
              fragment = new TrainerMenu();
              break;
          case R.id.nav_Settings:
              fragment = new Settings();
              break;
          case R.id.nav_About:
              showDialog();
              break;
  
      }
  
  
      if (fragment != null) {
          final Fragment finalFragment = fragment;
          new Handler().postDelayed(new Runnable() {
              @Override
              public void run() {
                  getSupportFragmentManager()
                          .beginTransaction()
                          .setCustomAnimations(android.R.anim.slide_in_left, android.R.anim.slide_out_right)
                          .replace(R.id.content_main, finalFragment)
                          .commit();
              }
          }, 0);
              }
  
          DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
          drawer.closeDrawer(GravityCompat.START);
      }
  
  
  
  
  @SuppressWarnings("StatementWithEmptyBody")
  @Override
  public boolean onNavigationItemSelected(MenuItem item) {
  
      displayView(item.getItemId());
      return true;
  }
  private void showDialog()
  {
      String text2 = "&lt;font color=#6774bd&gt;About SG50 App&lt;/font&gt;";
  
      AlertDialog.Builder builder = new AlertDialog.Builder(this, R.style.AppCompatAlertDialogStyle);
      builder.setTitle(Html.fromHtml(text2));
  
      String text3 = "&lt;font color=#A4A4A4&gt;App made by Matan Cohen , Please contact me for any questions.&lt;/font&gt;";//for custom message
      builder.setMessage(Html.fromHtml(text3));
  
      builder.setPositiveButton("OK", new DialogInterface.OnClickListener()
      {
          @Override
          public void onClick(DialogInterface dialog, int which)
          {
              Toast toast = Toast.makeText(getApplicationContext(), "תודה על שימוש", Toast.LENGTH_SHORT);
              toast.setGravity(Gravity.CENTER, 0, 0);
              toast.show();
          }
      });
  
      builder.show();
   }
  
  }
  </code></pre>
  
  <p>fragment Settings.java <strong>the "editor.getBoolean" gives me cannot resolve error!! what can I do?</strong>:</p>
  
  <pre><code>public class Settings extends Fragment {
  
  @Nullable
  @Override
  public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
      return inflater.inflate(R.layout.fragment_settings, container, false);
  
  }
  
  
  @Override
  public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
      super.onViewCreated(view, savedInstanceState);
      getActivity().setTitle("הגדרות");
  
      Switch aSwitch = (Switch) getView().findViewById(R.id.dailyTipSwitch);
      SharedPreferences sharedPreferences = getActivity().getSharedPreferences("key", 0);
      SharedPreferences.Editor editor = sharedPreferences.edit();
      editor.putBoolean("switchValue", aSwitch.isChecked());
      editor.apply();
      boolean showNotifications = editor.getBoolean("key",false);
              if (aSwitch.isChecked() != showNotifications) {
                  editor.putBoolean("key",!showNotifications).apply();
              }
              else {
                  Calendar calendar = Calendar.getInstance();
                  calendar.set(Calendar.HOUR_OF_DAY,19);
                  calendar.set(Calendar.MINUTE,27);
                  Intent intent = new Intent(getActivity().getApplicationContext(),NotificationReciever.class);
                  PendingIntent pendingIntent = PendingIntent.getBroadcast(getActivity().getApplicationContext(),100,intent,PendingIntent.FLAG_UPDATE_CURRENT);
                  AlarmManager alarmManager = (AlarmManager) getActivity().getSystemService(ALARM_SERVICE);
                  alarmManager.setRepeating(alarmManager.RTC_WAKEUP,calendar.getTimeInMillis(),AlarmManager.INTERVAL_DAY,pendingIntent);
              }
  
  
      }
  
  }
  </code></pre>
  
  <p>Notification_Reciever.java</p>
  
  <pre><code>public class NotificationReciever extends BroadcastReceiver {
  
  @Override
  public void onReceive(Context context, Intent intent) {
  
      NotificationManager notificationManager = (NotificationManager) context.getSystemService(context.NOTIFICATION_SERVICE);
  
      Intent repeatingIntent = new Intent(context,MainActivity.class);
      repeatingIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
  
      PendingIntent pendingIntent = PendingIntent.getActivity(context,100,repeatingIntent,PendingIntent.FLAG_UPDATE_CURRENT);
  
  
  
      NotificationCompat.Builder mBuilder = new
              NotificationCompat.Builder(context)
              .setSmallIcon(R.mipmap.ic_launcher)
              .setStyle(new NotificationCompat.BigTextStyle().bigText("בוקר טוב אלוף! תאכל ותשתה טוב!"))
              .setContentText(context.getString(R.string.NotificationText))
              .setContentTitle(context.getString(R.string.GoodMorningNotification))
              .setContentIntent(pendingIntent)
              .setAutoCancel(true);
  
      notificationManager.notify(100, mBuilder.build());
      }
  }
  </code></pre>
  
  <p>fragemnt_settings.XML:</p>
  
  <pre><code>&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:paddingLeft="30dp"
  android:paddingBottom="30dp"
  android:paddingTop="30dp"
  android:paddingRight="30dp"&gt;
  &lt;LinearLayout
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:orientation="horizontal"
      android:weightSum="1"&gt;
  
      &lt;Switch
          android:id="@+id/switch1"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_weight="0"
          android:layout_gravity="left" /&gt;
      &lt;TextView
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_weight="1"
          android:layout_gravity="right"
          android:text="@string/daily_tip"
          android:textSize="20sp"/&gt;
  &lt;/LinearLayout&gt;
  
  
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>Thank you!! Hope you can help me!</p>
  
  <p>THE editor.getBoolean GIVES ME CANNOT RESOLVE ERROR!!!
  what Can I do???</p>