Toast 消息在 Android 通知设置期间显示两次

Question

我在 Android 应用程序中有一个选项可以设置两个通知。基本上，当用户单击按钮时，将显示一个时间选择器，在第一次选择器完成后，将弹出第二个时间选择器供用户第二次插入。两个时间选择器都在不同的方法中，在第一种方法结束时显示吐司，与第二种方法相同。问题是当第一次选择器完成时，两条吐司消息立即触发，然后当用户第二次完成选择器时，第二条吐司消息再次触发。我已经包含了下面的代码。 /** * Method which sets the first daily notification */private void startTwiceDailyNotification(Calendar c) {    DialogFragment timePicker = new TimePickerFragment();    AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);    Intent intent = new Intent(this, AlertReceiver.class);    PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 1, intent, 0);    alarmManager.setExact(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), pendingIntent);    alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pendingIntent);    Toast.makeText(this, "First Notification Set.", Toast.LENGTH_SHORT).show();    timePicker.show(getSupportFragmentManager(), "time picker4");    hasSelected = 2;}/** * Method which sets the second daily notification */private void startTwiceDailyNotification2(Calendar c) {    AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);    Intent intent = new Intent(this, AlertReceiver.class);    PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 2, intent, 0);    alarmManager.setExact(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), pendingIntent);    alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pendingIntent);    Toast.makeText(this, "Second Notification Set.", Toast.LENGTH_SHORT).show();}