Android 安卓:Wake&;解锁手机
我正试图找出如何唤醒和解锁的服务电话。我一直在说这篇文章,但我不明白为什么它不起作用。这是我目前掌握的代码:Android 安卓:Wake&;解锁手机,android,broadcastreceiver,android-wake-lock,Android,Broadcastreceiver,Android Wake Lock,我正试图找出如何唤醒和解锁的服务电话。我一直在说这篇文章,但我不明白为什么它不起作用。这是我目前掌握的代码: public class WakephoneActivity extends Activity { BroadcastReceiver mReceiver; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState)
public class WakephoneActivity extends Activity {
BroadcastReceiver mReceiver;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
// Log.v(TAG, "Screen OFF onReceive()");
screenOFFHandler.sendEmptyMessageDelayed(0, 2000);
}
};
}
private Handler screenOFFHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
// do something
// wake up phone
// Log.i(TAG, "ake up the phone and disable keyguard");
PowerManager powerManager = (PowerManager) WakephoneActivity.this
.getSystemService(Context.POWER_SERVICE);
long l = SystemClock.uptimeMillis();
powerManager.userActivity(l, false);// false will bring the screen
// back as bright as it was, true - will dim it
}
};
protected void onResume() {
super.onResume();
IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_OFF);
registerReceiver(mReceiver, filter);
// Log.i(TAG, "broadcast receiver registered!");
}
}
我也在清单中添加了代码。有什么想法吗?要使服务始终处于活动状态,您需要在清单上拥有此权限:
<uses-permission android:name="android.permission.WAKE_LOCK" />
您可能需要将PowerManager.PARTIAL_WAKE_锁更改为所需的锁。您可以查看相关信息。在您的服务中使用下面的代码
PowerManager pm = (PowerManager) getApplicationContext().getSystemService(Context.POWER_SERVICE);
mWakeLock = pm.newWakeLock((PowerManager.SCREEN_DIM_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP), "YourServie");
mWakeLock.acquire();
[...]
mWakeLock.release();
如果您也想解锁屏幕,请在您的服务中注册一个接收器,用于监测屏幕是否打开/关闭,如果屏幕已关闭且您想解锁手机,请在onCreate
中使用此代码启动活动:
Window window = getWindow();
window.addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD);
this.finish();
return;
我知道,这是一个相当肮脏的,但据我所知,没有其他方式解锁锁屏(这将只在没有密码等设置的情况下工作,所以它必须是正常的“滑动解锁”屏幕)
别忘了添加android.permission.WAKE_LOCK
;-)
/编辑:我刚才看到你已经在使用一个活动了。如果您有一个,并且根本不需要该服务,只需将此代码放入活动中。有一个可以为您执行此操作的代码。示例用法:
在服务中完成操作后,调用以释放唤醒锁
(由于@Force已经向您提供了有关wakeLock的详细信息,因此无需在此重复;-)
请注意,该类已从api level 26.1.0中弃用,请参考我认为您可以以某种方式删除锁定设置,以便在活动中直接唤醒手机。
Window window = getWindow();
window.addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD);
this.finish();
return;
import android.content.Context;
import android.content.Intent;
import android.os.SystemClock;
import android.support.v4.content.WakefulBroadcastReceiver;
import android.util.Log;
public class SimpleWakefulReceiver extends WakefulBroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
// This is the Intent to deliver to our service.
Intent service = new Intent(context, SimpleWakefulService.class);
// Start the service, keeping the device awake while it is launching.
Log.i("SimpleWakefulReceiver", "Starting service @ " + SystemClock.elapsedRealtime());
startWakefulService(context, service);
}
}