private boolean dettachLockScreenView() {

        if (null != mWindowManager && null != mLockscreenView && isAttachedToWindow())

 {
            mWindowManager.removeView(mLockscreenView);

            mLockscreenView = null;

             mWindowManager = null;
               stopSelf(mServiceStartId);

Intent enter_pin=new Intent(mContext,com.github.mugku.lockscreensample.Enter_pin.class);
               enter_pin.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
               startActivity(enter_pin);

               return true;
        }
else
 {
            return false;
        }
    }

if (null != mWindowManager && null != mLockscreenView && isAttachedToWindow())

 {
            mWindowManager.removeView(mLockscreenView);

            mLockscreenView = null;

             mWindowManager = null;
               stopSelf(mServiceStartId);

Intent enter_pin=new Intent(mContext,com.github.mugku.lockscreensample.Enter_pin.class);
               enter_pin.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
               startActivity(enter_pin);

               return true;
        }
else
 {
            return false;
        }
    }