预定的警报管理器无法在Android上运行 [英] Scheduled Alarm Manager not working Android
问题描述
我正在尝试启动每天在特定时间重复的警报服务。关于这一点,我在堆栈溢出中经历了很多线程,但是没有运气。我遵循了一些教程: http:// karanbalkar.com/2013/07/tutorial-41-using-alarmmanager-and-broadcastreceiver-in-android/ 和 http://javatechig.com/android/repeat-alarm-example-in-android
I am trying to start an alarm service that repeats every day at a particular time. I have gone through a lot of threads on stack overflow regarding this but no luck. I followed a few tutorials: http://karanbalkar.com/2013/07/tutorial-41-using-alarmmanager-and-broadcastreceiver-in-android/ and http://javatechig.com/android/repeat-alarm-example-in-android
我的服务从来没有开始,我不明白为什么。以下是我的代码:
My service is never started and I do not understand why. Below is my code:
我的清单文件:
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="com.android.alarm.permission.SET_ALARM" />
<application>
<service android:name="com.paper.DownloadService" android:enabled="true"/>
<receiver android:name="com.paper.MyReceiver" ></receiver>
</application>
我的接收器类别:
public class MyReceiver extends BroadcastReceiver
{
@Override
public void onReceive(Context rcontext, Intent intent)
{
Log.e("Main Activity", "inside on receive of myreceiver");
Intent service1 = new Intent(rcontext, DownloadService.class);
rcontext.startService(service1);
}
}
我的服务等级:
public class DownloadService extends Service {
@Override
public void onCreate() {
// TODO Auto-generated method stub
Log.e("Download Service", "CREATED");
}
@SuppressLint({ "SimpleDateFormat", "NewApi" }) @Override
public int onStartCommand(Intent intent, int flags, int startId) {
// TODO Auto-generated method stub
Log.e("Download Service", "STARTED");
return START_NOT_STICKY;
}
}
我的主要活动(创建方法内部):
My Main Activity (Inside On Create Method):
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY, 15);
calendar.set(Calendar.MINUTE, 29);
Intent myIntent = new Intent(this, MyReceiver.class);
pendingIntent = PendingIntent.getBroadcast(this, 0, myIntent,0);
alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
AlarmManager.INTERVAL_DAY, pendingIntent);
在这里,我试图在每天下午3:29设置闹钟,但该服务确实在那个时候或任何时候都没有开始。任何帮助,将不胜感激。谢谢!
Here, I am trying to set up my alarm at 3:29 pm every day but the service does not get started at that time or any time for that matter. Any help would be appreciated. Thanks!
推荐答案
这就是我要使其正常工作的方法:
Here is what I did to get it working:
1)在我的清单文件中添加了< uses-permission android:name = com.android.alarm.permission.SET_ALARM />
。
1) Added <uses-permission android:name="com.android.alarm.permission.SET_ALARM"/>
to my manifest file.
2)将我的主要活动中的代码更改为:
2) Changed code in my Main activity to:
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR, 3);
calendar.set(Calendar.MINUTE, 29);
calendar.set(Calendar.AM_PM, Calendar.PM);
Intent myIntent = new Intent(this, MyReceiver.class);
pendingIntent = PendingIntent.getBroadcast(this, 0, myIntent,0);
alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
AlarmManager.INTERVAL_DAY, pendingIntent);
希望有人发现这有帮助!
Hope someone finds this helpful!
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