警报管理器在 Android 6.0 上无法在后台运行 [英] Alarm Manager does not work in background on Android 6.0
问题描述
这是我的Activity
代码,
Long time = new GregorianCalendar().getTimeInMillis()+20000;//Setting alarm after 20 sec
Intent intentAlarm = new Intent("alarm");
intentAlarm.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intentAlarm.putExtra("req_code",10);
PendingIntent pendingIntent = PendingIntent.getBroadcast(context,10, intentAlarm, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, time, pendingIntent);
这些是我在我的应用程序中拥有的所有权限,
These are all the permissions that I have in my app,
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.GET_ACCOUNTS"/>
<uses-permission android:name="com.myapp.pack.permission.SET_ALARM"/>
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
这是我的BroadcastReceiver
代码,
@Override
public void onReceive(Context context, Intent intent) {
SharedPreferences sharedPreferences =
context.getSharedPreferences( "mydata", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putBoolean("elligible",true);
editor.apply();
}
我已经在清单中注册了我的 BroadcastReceiver
,
I have registered my BroadcastReceiver
in the manifest,
<receiver android:name="com.myapp.pack.AlarmReciever" android:enabled="true">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="alarm" />
</intent-filter>
</receiver>
上面的代码在后台成功地在 MarshMallow 之前的设备上执行了 BroadcastReceiver
,但是在 MarshMallow 设备上,BroadcastReceiver
没有被执行.有谁知道这里会发生什么?谢谢.
The above code successfully executes the BroadcastReceiver
on pre-MarshMallow devices in the background ,but on a MarshMallow device ,the BroadcastReceiver
does not get executed. Does anyone know what could be happening here? Thanks.
推荐答案
你可以尝试一些事情,当它们一起使用时,应该能够解决所有的空闲/standby/doze 模式(与操作系统版本无关).
There are a couple of things you can try which, when used in concert, should be able to cut through all of the idle/standby/doze modes (irrespective of OS version).
1. 使用 WakefulBroadcastReceiver
而不是普通的 BroadcastReceiver
.确保包含 WAKE_LOCK
正确使用它的许可.
1. Use a WakefulBroadcastReceiver
instead of an ordinary BroadcastReceiver
. Make sure you include the WAKE_LOCK
permission to use it correctly.
2. 使用 setExactAndAllowWhileIdle()
方法(在 API 23 及以上)用于安排 Intent
接收方:
if(Build.VERSION.SDK_INT < 23){
if(Build.VERSION.SDK_INT >= 19){
setExact(...);
}
else{
set(...);
}
}
else{
setExactAndAllowWhileIdle(...);
}
参考:
1. 后台服务的报警管理器.
2. 后台工作流程图、警报,以及您的 Android 应用.
这篇关于警报管理器在 Android 6.0 上无法在后台运行的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!