[英]AlarmManager one time alarm does not fire
我想用以下内容触发一次警报,该警报基本上是从https://developer.android.com/training/scheduling/alarms.html复制的(第二个ELAPSED_REALTIME_WAKEUP示例)。
这是在公共静态类PlaceholderFragment内的扩展Fragment实现View.OnClickListener:
@Override
public void onClick(View v) {
Intent intent;
intent = new Intent(this.getActivity(), MuteReceiver.class);
AlarmManager alm = (AlarmManager)(this.getActivity().getSystemService(Context.ALARM_SERVICE));
PendingIntent alarmIntent = PendingIntent.getBroadcast(getActivity(), 0, intent, 0);
alm.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
SystemClock.elapsedRealtime() + 60*1000,
alarmIntent);
Log.d("MainActivity", "alarm set");
}
公共类MuteReceiver扩展了BroadcastReceiver就像这样:
public MuteReceiver() {
Log.d("MuteReceiver", "constructed");
}
@Override
public void onReceive(Context context, Intent intent) {
final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
boolean started = prefs.getBoolean(MuteService.STARTED, false);
Log.d("MuteReceiver", "Started=" + started);
}
我按了Fragment中的按钮,看到了日志消息“ alarm set”,但是一分钟后(甚至更晚),仍然没有关于正在构建MuteReceiver或启动MuteReceiver的日志(在onReceive中)
您拥有一个已注册广播的保证清单文件
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