how to lock the android programatically

Question

i want to lock the phone when i click the lock button.anybody please help with simple code.i tried with part of code from API_Demos but it shows some error.

Answer 1

You can lock the Android's screen programmatically using the LockScreen class like so:

KeyguardManager mgr = (KeyguardManager)getSystemService(Activity.KEYGUARD_SERVICE); 
KeyguardLock lock = mgr.newKeyguardLock(KEYGUARD_SERVICE); 
lock.reenableKeyguard();

Take a look at the LockScreen class here.