检查屏幕是否已解锁

Question

如何检查屏幕是否已解锁（E.i.打开而不是锁定屏幕）？

PS。我不在寻找解锁事件，我知道可以使用AdminDeviceReceiver进行检索，但我正在寻找一个可执行代码，它将返回一个布尔值，告诉我该屏幕是否已解锁。

Answer 1

试试这个：Detecting when screen is locked

而且同样的答案：

KeyguardManager myKM = (KeyguardManager) сontext.getSystemService(Context.KEYGUARD_SERVICE); 
    if(myKM.inKeyguardRestrictedInputMode()) { 
     // it is locked 
    } else { 
     //it is not locked 
    } 

来自How to tell if user is on lock screen from service

Answer 2

KeyguardManager keyguardManager = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE); 
      if(keyguardManager.inKeyguardRestrictedInputMode()) { 
       System.out.println("~~~SCREEN LOCKED~~~"); 
      } else { 
       System.out.println("~~~SCREEN NOT LOCKED~~~"); 
      } 

Answer 3

使用电源管理

检查屏幕关闭状态在你的onPause方法

@Override 
protected void onPause() 
{ 
    super.onPause(); 

    // If the screen is off then the device has been locked 
    PowerManager powerManager = (PowerManager) getSystemService(POWER_SERVICE); 
    boolean isScreenOn = powerManager.isScreenOn(); 

    if (!isScreenOn) { 

     // The screen has been locked 
     // do stuff... 
    } 
}