android - AlarmManager.RTC_WAKEUP 没有唤醒设备？

Question

我一直在尝试使用 AlarmManager.RTC_WAKEUP 来唤醒我的设备以播放一些声音。 这是闹钟安排:

Intent intent = new Intent(Main.this, OneShotAlarm.class); 
PendingIntent sender =  PendingIntent.getBroadcast(Main.this, 0, intent, 0); 

// I want the alarm to go off 60 seconds from now. 
Calendar calendar = Calendar.getInstance(); 
calendar.setTimeInMillis(System.currentTimeMillis()); 
calendar.add(Calendar.SECOND, 60); 

// Schedule the alarm! 
AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE); 
am.set(AlarmManager.RTC_WAKEUP,calendar.getTimeInMillis(), sender); 

---

OneShotAlarm BroadCastReceiver:

public class OneShotAlarm extends BroadcastReceiver 
{ 
    @Override 
    public void onReceive(Context context, Intent intent) 
    { 
        Toast.makeText(context, "OneShotAlarm Broadcast invoked", 1000).show(); 

        intent = new Intent(context, ServiceClassToRun.class); 

        context.startService(intent); 
    } 
}

---

服务:

public class ServiceClassToRun extends Service { 
    protected static final int Rnd = 0; 

     public void onStart(Intent intent, int startId) { 
     //do some business here 
} 

---

最后，我的 list :

<receiver android:name=".OneShotAlarm" android:process=":remote" /> 
<service android:name=".ServiceClassToRun "/> 

当设备处于唤醒状态时，我的服务工作正常。 非常感谢任何想法。有没有其他人经历过这个 出色地？提前致谢。

Answer 1

PendingIntent sender =  PendingIntent.getBroadcast(Main.this, 0, intent, 0);

改为

PendingIntent sender =  PendingIntent.getBroadcast(Main.this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);

或者，如果你错过了警报的权限，那么添加这些权限

<uses-permission android:name="android.permission.WAKE_LOCK"/>
<uses-permission android:name="com.android.alarm.permission.SET_ALARM"/>

让我知道，如果它适合你