檢查屏幕是否已解鎖

Question

如何檢查屏幕是否已解鎖（E.i.打開而不是鎖定屏幕）？

PS。我不在尋找解鎖事件，我知道可以使用AdminDeviceReceiver進行檢索，但我正在尋找一個可執行代碼，它將返回一個布爾值，告訴我該屏幕是否已解鎖。

Answer 1

試試這個：Detecting when screen is locked

而且同樣的答案：

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

來自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

使用電源管理

檢查屏幕關閉狀態在你的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... 
    } 
}