Android 使用Alarm机制创建长时间在后台运行的定时任务

public class LongRunningService extends Service {
    private static final String TAG = "LongRunningService";
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        new Thread(new Runnable() {
            @Override
            public void run() {
                //在这里执行具体的逻辑操作
                Log.d(TAG, "run: "+"10秒执行一次！" );
            }
        }).start();
        //获取AlarmManager的实例
        AlarmManager manager = (AlarmManager) getSystemService(ALARM_SERVICE);
        int anHour = 10 * 1000;
        // SystemClock.elapsedRealtime()获取系统开机至今的毫秒数
        long triggerAtTime = SystemClock.elapsedRealtime() + anHour;
        Intent i = new Intent(this,LongRunningService.class);
        PendingIntent pi = PendingIntent.getService(this,0,i,0);
        //设置一个定时任务，这里设置的一个10秒之后执行一次
        //AlarmManager.ELAPSED_REALTIME_WAKEUP 表示让定时任务的触发时间从系统开机开始算起，会唤醒CPU
        manager.setExact(AlarmManager.ELAPSED_REALTIME_WAKEUP,triggerAtTime,pi);
        return super.onStartCommand(intent, flags, startId);
    }
    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }
}

Intent intent = new Intent(this, LongRunningService.class);
startService(intent);

<service android:name=".service.LongRunningService"/>