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android屏幕加解锁事件广播的监听

  想在程序中监听屏幕SCREEN_ON和SCREEN_OFF这两个action,实现屏幕锁定状态的监听,从而实现自己的相应功能。比较奇怪的是这两个action只能通过代码的形式注册才能被监听到,在AndroidManifest.xml中注册根本监听不到。去网上查了一下,原来是PowerManager那边在发这个广播的时候做了限制,限制只有register到代码中的receiver才能接收。特此记录!

 

 

 

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public class ScreenActionReceiver extends BroadcastReceiver { 
 
    private String TAG = "ScreenActionReceiver"; 
    private boolean isRegisterReceiver = false; 
 
    @Override 
    public void onReceive(Context context, Intent intent) { 
        String action = intent.getAction(); 
        if (action.equals(Intent.ACTION_SCREEN_ON)) { 
            Logcat.d(TAG, "屏幕解锁广播..."); 
        } else if (action.equals(Intent.ACTION_SCREEN_OFF)) { 
            Logcat.d(TAG, "屏幕加锁广播..."); 
        } 
    } 
 
    public void registerScreenActionReceiver(Context mContext) { 
        if (!isRegisterReceiver) { 
            isRegisterReceiver = true; 
 
            IntentFilter filter = new IntentFilter(); 
            filter.addAction(Intent.ACTION_SCREEN_OFF); 
            filter.addAction(Intent.ACTION_SCREEN_ON); 
            Logcat.d(TAG, "注册屏幕解锁、加锁广播接收者..."); 
            mContext.registerReceiver(ScreenActionReceiver.this, filter); 
        } 
    } 
 
    public void unRegisterScreenActionReceiver(Context mContext) { 
        if (isRegisterReceiver) { 
            isRegisterReceiver = false; 
            Logcat.d(TAG, "注销屏幕解锁、加锁广播接收者..."); 
            mContext.unregisterReceiver(ScreenActionReceiver.this); 
        } 
    } 
 

补充:移动开发 , Android ,
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