Add event Calendar, send SMS, installed package, send message with FB Messenger, send Email

gistfile1.txt

   private void addCalendar() {

      Uri eventsUri;
      if (android.os.Build.VERSION.SDK_INT <= 7) {

         eventsUri = Uri.parse("content://calendar/events");
      }
      else {

         eventsUri = Uri.parse("content://com.android.calendar/events");
      }

      Calendar cal = Calendar.getInstance();
      ContentValues event = new ContentValues();
      event.put(CalendarContract.Events.CALENDAR_ID, 1);
      event.put(CalendarContract.Events.TITLE, "Event Titleeeeeeeee");
      event.put(CalendarContract.Events.DESCRIPTION, "Event Desceeeeeeeeeeeeee");
      event.put(CalendarContract.Events.EVENT_LOCATION, "Event Locationeeeeeeeeeeeeeeeeeee");
      event.put(CalendarContract.Events.DTSTART, cal.getTimeInMillis());
      event.put(CalendarContract.Events.RRULE, "FREQ=WEEKLY;WKST=SU;BYDAY=WE"); // ileriki zamanlarda tekrarlansin ayarlari
      event.put(CalendarContract.Events.ALL_DAY, 1); // 0 for false, 1 for true
      event.put(CalendarContract.Events.STATUS, 1);// 0 tentative 1 confirm 2 cancel
      event.put(CalendarContract.Events.HAS_ALARM, 1); // 0 for false, 1 for true
      event.put(CalendarContract.Events.DURATION, "P3600S");
      event.put(CalendarContract.Events.EVENT_TIMEZONE, TimeZone.getDefault().getID());
      // event.put(CalendarContract.Events.DTEND,1433131200000L);
      Uri url = getContentResolver().insert(eventsUri, event);
      if (url != null) {
         Toast.makeText(this, "event kaydedildi", Toast.LENGTH_SHORT).show();
      }
   }

   private void sendSMS() {
      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) // At least KitKat
      {
         String defaultSmsPackageName = Telephony.Sms.getDefaultSmsPackage(this); // Need to change the build to API 19

         Intent sendIntent = new Intent(Intent.ACTION_SEND);
         sendIntent.setType("text/plain");
         sendIntent.putExtra(Intent.EXTRA_TEXT, "sms text");

         if (defaultSmsPackageName != null)// Can be null in case that there is no default, then the user would be able to choose
                                           // any app that support this intent.
         {
            sendIntent.setPackage(defaultSmsPackageName);
         }
         startActivity(sendIntent);

      }
      else // For early versions, do what worked for you before.
      {
         Intent sendIntent = new Intent(Intent.ACTION_VIEW);
         sendIntent.setData(Uri.parse("sms:"));
         sendIntent.putExtra("sms_body", "sms text");
         startActivity(sendIntent);
      }
   }

   private void sendMail() {
      Intent intentEmail = new Intent(Intent.ACTION_SEND);
      intentEmail.putExtra(Intent.EXTRA_EMAIL, new String[]{"[email protected]"});
      intentEmail.putExtra(Intent.EXTRA_SUBJECT, "your subject");
      intentEmail.putExtra(Intent.EXTRA_TEXT, "message body");
      intentEmail.setType("message/rfc822");
      startActivity(Intent.createChooser(intentEmail, "Choose an email provider :"));
   }

   private boolean isPackageInstalled(String packagename) {
      PackageManager pm = getPackageManager();
      try {
         pm.getPackageInfo(packagename, PackageManager.GET_ACTIVITIES);
         return true;
      }
      catch (PackageManager.NameNotFoundException e) {
         return false;
      }
   }

   private void sendMessageWithFBMessenger() {
      Intent sendIntent = new Intent();
      sendIntent.setAction(Intent.ACTION_SEND);
      sendIntent.putExtra(Intent.EXTRA_TEXT, "<---YOUR TEXT HERE--->.");
      sendIntent.setType("text/plain");
      sendIntent.setPackage(fbMessengerPAckageName);
      try {
         startActivity(sendIntent);
      }
      catch (android.content.ActivityNotFoundException ex) {
         // Toast.makeText(this,"Please Install Facebook Messenger",Toast.LENGTH_SHORT).show();
      }
   }