即使在调用AlarmManager.cancel（pendingIntent）之后，警报也不会停止

Question

我有这个局部变量：

AlarmManager alarmManager;
static PendingIntent pendingIntent;
private String TAG = "netwatcher";
private final int alarmId = 0;

我是在这里启动我的闹钟

    private void startNetWatcher(){ //runs every 30 seconds
    Log.i(TAG, "starting Net Watcher");
    Intent alarm = new Intent(getApplicationContext(), NetWatcher.class);
    boolean alarmRunning = (PendingIntent.getBroadcast(getApplicationContext(), alarmId, alarm, PendingIntent.FLAG_NO_CREATE) != null);
    if(!alarmRunning) {
        Log.i(TAG, "alarm not running");
        if (pendingIntent == null)
            pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), alarmId, alarm,  PendingIntent.FLAG_UPDATE_CURRENT);
        alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
        alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, SystemClock.elapsedRealtime(), 15000, pendingIntent);
    }
}

警报效果很好，这是我“停止”警报（或至少尝试这样做）的代码。但是，它不起作用，因为它仍然运行在我停止警报时应该停止的服务。

       private void stopNetWatcher(){
    Log.i(TAG, "stopping net watcher because app is on front: " + alarmId);
    alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
    Intent alarm = new Intent(getApplicationContext(), NetWatcher.class);
    if (pendingIntent==null)
        pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), alarmId, alarm,  PendingIntent.FLAG_UPDATE_CURRENT);
    try {
        alarmManager.cancel(pendingIntent);
        pendingIntent.cancel();
        Log.i(TAG, "intent stopped");
    }catch (Exception e){
        Log.e(TAG, e.toString());
    }
}

Answer 1

我正面临着同样的问题，但现在找不到解决方法！