Android wake up unlock screen code instance

Unlock and wake the screen using KeyguardManager, KeyguardLock, PowerManager, PowerManager.WakeLock

Required permissions:

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

 

// Lock screen, wake up related 

private KeyguardManager  km;

private KeyguardLock kl;

private PowerManager pm;

private PowerManager.WakeLock wl;

 

 

 

private void wakeAndUnlock(boolean b)

{

       if(b)

       {

              // Gets the power manager object 

              pm=(PowerManager) getSystemService(Context.POWER_SERVICE);

 

              // To obtain PowerManager.WakeLock Object, followed by arguments | Means that two values are passed in at the same time, and the last one is used for debugging Tag

              wl = pm.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP | PowerManager.SCREEN_BRIGHT_WAKE_LOCK, "bright");

 

              // Light up the screen 

              wl.acquire();

             

              // Gets the keyboard lock manager object 

              km= (KeyguardManager)getSystemService(Context.KEYGUARD_SERVICE);

              kl = km.newKeyguardLock("unLock");

 

              // unlock 

              kl.disableKeyguard();

       }

       else

       {

              // Lock screen 

              kl.reenableKeyguard();

             

              // The release of wakeLock Turn off the lights, 

              wl.release();

       }

      

}