Question

我设置了10套警报，当应用程序被置于OnDestroy方法中时，我已经取消了所有警报，但仍有一些警报是活动的。我希望在应用程序被杀死时销毁所有警报。

public class MainActivity extends Activity {
    int id;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main); 


        for(id=0;id<10;id++)
        {
            Long time = new GregorianCalendar()
            .getTimeInMillis()
            +10000;
            Intent intentAlarm = new Intent(MainActivity.this,
                    AlarmReciever.class);              

                         intentAlarm.putExtra("AlarmID", id);


            PendingIntent pendingIntent = PendingIntent.getBroadcast(
                    MainActivity.this, id, intentAlarm,
                    Intent.FLAG_ACTIVITY_NEW_TASK);

            AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);

            alarmManager.set(AlarmManager.RTC_WAKEUP, time,
                    PendingIntent.getBroadcast(
                            MainActivity.this, id,
                            intentAlarm,
                            PendingIntent.FLAG_UPDATE_CURRENT));
        }

    } 

    protected void onDestroy() {


        for(id=0;id<10;id++)
        {
            Intent AlarmIntent = new Intent(MainActivity.this,
                    AlarmReciever.class);
            AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
            pendingIntent = PendingIntent.getBroadcast(
                    MainActivity.this, id, AlarmIntent, 0);
            alarmManager.cancel(pendingIntent);
        }
    super.onDestroy();

    }

Answer 1

嘿，要取消所有闹钟，请在onDestroy（）方法中使用以下代码段：

    Intent i = new Intent(getApplicationContext(), AlarmReciever.class);

    AlarmActivity.pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), id, i,
                    PendingIntent.FLAG_CANCEL_CURRENT);
    AlarmManager am = (AlarmManager)context. getSystemService(Context.ALARM_SERVICE);

    am.cancel(AlarmActivity.pendingIntent);

为了取消所有警报，在循环变量的id = 1到10

的某个循环中运行上面的代码

应用程序被终止时取消多个警报

1 个答案: