如何在一天中的特定时间停止服务？

Question

我已经能够在每天的特定时间开始服务,但我想做同样的事情停止但我不知道如何.

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这是我用来使用AlarmManager启动服务的代码.
注意:我是Android dev的新手,因此提供完整的评论代码将受到高度赞赏.

 Calendar calendar = Calendar.getInstance();
    calendar.set(Calendar.HOUR_OF_DAY, 9);
    calendar.set(Calendar.MINUTE, 0);
    calendar.set(Calendar.SECOND, 0);
    PendingIntent pi = PendingIntent.getService(getApplicationContext(), 0,
            new Intent(getApplicationContext(), Service.class), PendingIntent.FLAG_NO_CREATE);
    AlarmManager am = (AlarmManager) getApplicationContext().getSystemService(Context.ALARM_SERVICE);
    am.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
            AlarmManager.INTERVAL_DAY, pi);

Answer 1

如果您具有上下文,则可以从任何正在运行的类中停止服务.通过以下步骤,您可以使用Receiver在特定时间停止正在运行的服务.

1. 在应用程序中创建一个WakefulBroadcastReceiver类.在接收操作时检查服务是否正在运行,如果使用上下文运行停止.

public class TestReceiver extends WakefulBroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {
    if(intent.getAction().equalsIgnoreCase("STOP_TEST_SERVICE")) {
        if (isMyServiceRunning(context, TestService.class)) {
             Toast.makeText(context,"Service is running!! Stopping...",Toast.LENGTH_LONG).show();
             context.stopService(new Intent(context, TestService.class));
        }
        else {
            Toast.makeText(context,"Service not running",Toast.LENGTH_LONG).show();
        }
    }

}
private boolean isMyServiceRunning(Context context,Class<?> serviceClass) {
    ActivityManager manager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
    for (ActivityManager.RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
        if (serviceClass.getName().equals(service.service.getClassName())) {
            return true;
        }
    }
    return false;
}

}

2.在AndroidManifest中注册接收器.

<receiver android:name=".TestReceiver">
        <intent-filter>
            <action android:name="STOP_TEST_SERVICE" />
            <action android:name="START_TEST_SERVICE" />

        </intent-filter>
    </receiver>

3. 使用所需操作创建PendingIntent,然后使用活动类中的AlarmManager设置计划操作.

 public void setStopServiceAlarm() {
    Calendar calendar = Calendar.getInstance();
    calendar.setTimeInMillis(System.currentTimeMillis());
    calendar.set(Calendar.HOUR_OF_DAY, 15);
    calendar.set(Calendar.MINUTE, 59);
    calendar.set(Calendar.SECOND, 0);

    AlarmManager alarm = (AlarmManager) getApplicationContext().getSystemService(Context.ALARM_SERVICE);

    PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 0,
            new Intent().setAction("STOP_TEST_SERVICE"), PendingIntent.FLAG_UPDATE_CURRENT);

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        alarm.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
    } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
        alarm.setExact(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
    } else {
        alarm.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
    }
}

希望这可以帮助!!