Android喚醒、解鎖屏幕代碼實例

解鎖、喚醒屏幕用到KeyguardManager，KeyguardLock，PowerManager，PowerManager.WakeLock
 
所需權限：
復制代碼 代碼如下:
<uses-permission android：name="android.permission.WAKE_LOCK" />

<uses-permission android：name="android.permission.DISABLE_KEYGUARD" />
 

 復制代碼 代碼如下:
//鎖屏、喚醒相關
private KeyguardManager  km;
private KeyguardLock kl;
private PowerManager pm;
private PowerManager.WakeLock wl;
 
 
 
private void wakeAndUnlock(boolean b)
{
       if(b)
       {
              //獲取電源管理器對象
              pm=(PowerManager) getSystemService(Context.POWER_SERVICE);
 
              //獲取PowerManager.WakeLock對象，後面的參數|表示同時傳入兩個值，最後的是調試用的Tag
              wl = pm.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP | PowerManager.SCREEN_BRIGHT_WAKE_LOCK, "bright");
 
              //點亮屏幕
              wl.acquire();
            
              //得到鍵盤鎖管理器對象
              km= (KeyguardManager)getSystemService(Context.KEYGUARD_SERVICE);
              kl = km.newKeyguardLock("unLock");
 
              //解鎖
              kl.disableKeyguard();
       }
       else
       {
              //鎖屏
              kl.reenableKeyguard();
            
              //釋放wakeLock，關燈
              wl.release();
       }
     
}