我正试图设置闹钟每5分钟发射一次。
这是设置闹钟的代码:
@Override
public void scheduleAlarmManager() {
Timber.i("After SignIn sets AlarmManager");
// broadcast
Intent intent = new Intent(this, PatientAlarmReceiver.class);
intent.setAction(PATIENT_START_ALARM_ACTION);
PendingIntent pendingIntent = PendingIntent.getBroadcast(
this, REQUEST_CODE, intent, 0);
// and set alarmManager
AlarmManager alarm = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
Calendar currentCal = Calendar.getInstance();
long currentTIme = currentCal.getTimeInMillis();
// if there's not an Alarm already set then set one
if (!isAlarmSet(this)) {
Timber.i("Alarm not set - so set one");
alarm.setInexactRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,
currentTIme + TWO_MINS_DURATION, TWO_MINS_DURATION, pendingIntent);
}
}
我可以验证我是否正确设置了警报,因为我在logcat中看到了我使用Timber
登录的消息。
我的Receiver课程是:
public class PatientAlarmReceiver extends BroadcastReceiver {
public static final String TAG = "PATIENT-ALARM-RECEIVER";
public static final String PATIENT_START_ALARM_ACTION = "bp.headsup.receivers.alarm.patient";
@Override
public void onReceive(Context context, Intent intent) {
Log.i(TAG, "Inside OnReceive Patient");
Timber.i("Inside OnReceive Patient");
if (intent == null || intent.getAction() == null) {
return;
}
String action = intent.getAction();
if (PATIENT_START_ALARM_ACTION.equalsIgnoreCase(action)) {
onStartCheckForConnectionRequest(context);
}
}
/**
* If is connected to network starts services
*/
private void onStartCheckForConnectionRequest(Context context) {
NetworkUtils networkUtils = new NetworkUtils(context);
if (networkUtils.isNetworkConnected()) {
Intent checkForConnRequestIntent = new Intent(context, PatientCheckForConnectionRequestService.class);
context.startService(checkForConnRequestIntent);
Timber.i("Starts Service From PatientALARMMANAGER");
}
}
}
我在Manifest中声明:
<!-- Receivers -->
<receiver
android:name="bp.headsup.receivers.PatientAlarmReceiver" />
如果我跑:adb shell dumpsys alarm
我可以看到:
ELAPSED_WAKEUP #0: Alarm{42d804e8 type 2 bp.headsup.mock}
operation=PendingIntent{42d0c230: PendingIntentRecord{42d0f000 bp.headsup.mock broadcastIntent}}
上面的响应中的模拟是我正在使用的sourceSet - 不知道它是否与此有关,我只是提到它。
问题是我从未在logcat中读过我在Receiver类onReceive
中的消息,显然没有服务启动。任何人都可以帮忙吗?我正在使用一个运行kitKat 4.4(api 19)的设备,但我也尝试使用模拟器,结果是一样的。
答案 0 :(得分:1)
您正在设置ELAPSED_REALTIME
警报,该警报基于自上次启动以来的时间。但是,您根据&#34;挂钟&#34;传递它的开始时间,所以您的闹钟实际上将在未来设置得相当远。
您可以将闹钟更改为RTC
类型,也可以从SystemClock.elapsedRealtime()
获取开始时间。鉴于您描述的行为,保持已过时的类型并更正开始时间似乎是合适的。