唤醒设备时，应用程序会提示用户 [英] Wake the device up when app prompts user

问题描述

我使用的处理程序反复提示用户输入每个如5分钟。当设备进入睡眠模式，屏幕被锁定，我怎么能唤醒设备时，我的应用程序将提示用户输入？我试过，但它似乎并没有工作。我已经在清单中添加 WAKE_LOCK 许可。

 类BtHandler扩展处理程序{
    私人电源管理器时;
    私人WakeLock WL;

    @覆盖
    公共无效的handleMessage（信息MSG）{
        PM =（电源管理器）FixedNode.this.getSystemService（Context.POWER_SERVICE）;
        如果（！pm.isScreenOn（））{
            WL = pm.newWakeLock（PowerManager.FULL_WAKE_LOCK，TAG）;
            wl.acquire（）;
        }
        FixedNode.this.setAlwaysDiscoverable（）;
        wl.release（）;
    }
}
 

任何想法？

编辑：使用 AlarmManager 播放定制的意图

  mReceiver =新的BroadcastReceiver（）{

    @覆盖
    公共无效的onReceive（上下文的背景下，意图意图）{
        振动器V =（震动）getSystemService（Context.VIBRATOR_SERVICE）;
        v.vibrate（300）;
        电源管理器PM =（电源管理器）getSystemService（Context.POWER_SERVICE）;
        KeyguardManager公里=（KeyguardManager）getSystemService（Context.KEYGUARD_SERVICE）;
        WakeLock WL = NULL;

        如果（！pm.isScreenOn（））{
            KeyguardLock KL = km.newKeyguardLock（TAG）;
            kl.disableKeyguard（）;
            WL = pm.newWakeLock（
                PowerManager.SCREEN_BRIGHT_WAKE_LOCK |
                PowerManager.ACQUIRE_CAUSES_WAKEUP，TAG）;
            wl.acquire（）;
        }

        Toast.makeText（上下文，报警工作，Toast.LENGTH_LONG）.show（）;
        wl.release（）;
    }
};

MFILTER =新的IntentFilter（ACTION_NAME）;

意图mIntent =新的意图（ACTION_NAME）;
PendingIntent pendingIntent = PendingIntent.getBroadcast（此，0，mIntent，0）;
AlarmManager AM =（AlarmManager）getSystemService（ALARM_SERVICE）;
am.set（AlarmManager.RTC_WAKEUP，System.currentTimeMillis的（）+（120 * 1000），pendingIntent）;
Toast.makeText（这一点，报警设置，Toast.LENGTH_LONG）.show（）;
 

解决方案

通常 wakelock 犯规实际的开启的屏幕上。所以，你应该得到唤醒锁

  

ACQUIRE_CAUSES_WAKEUP

作为一个额外的标志。

I'm using handler to repeatedly prompt user for an input every e.g. 5 minutes. When the device goes into sleeping mode and screen is locked, how can I wake the device up when my app prompts user for input? I've tried this but it doesn't seem to work. I've added WAKE_LOCKpermission in the manifest.

class BtHandler extends Handler {
    private PowerManager pm;
    private WakeLock wl;

    @Override
    public void handleMessage(Message msg) {
        pm = (PowerManager)FixedNode.this.getSystemService(Context.POWER_SERVICE);
        if (!pm.isScreenOn()) {
            wl = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, "TAG");
            wl.acquire();
        }
        FixedNode.this.setAlwaysDiscoverable();
        wl.release();
    }
}

Any ideas?

Edit: Using AlarmManagerto broadcast custom intent.

mReceiver = new BroadcastReceiver() {

    @Override
    public void onReceive(Context context, Intent intent) {
        Vibrator v = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
        v.vibrate(300);
        PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
        KeyguardManager km = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);
        WakeLock wl = null;

        if (!pm.isScreenOn()) {
            KeyguardLock kl = km.newKeyguardLock("TAG");
            kl.disableKeyguard();
            wl = pm.newWakeLock(
                PowerManager.SCREEN_BRIGHT_WAKE_LOCK | 
                PowerManager.ACQUIRE_CAUSES_WAKEUP, "TAG");
            wl.acquire();
        }

        Toast.makeText(context, "Alarm worked", Toast.LENGTH_LONG).show();
        wl.release();
    }
};

mFilter = new IntentFilter(ACTION_NAME);

Intent mIntent = new Intent(ACTION_NAME);        
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, mIntent, 0);
AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
am.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + (120 * 1000), pendingIntent);
Toast.makeText(this, "Alarm set", Toast.LENGTH_LONG).show();

解决方案

Normally wakelock doesnt actual turn on the screen. So you should get the wake lock with

ACQUIRE_CAUSES_WAKEUP

as an additional flag.

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