What do I do if I run it with an Android studio emulator and the lock screen doesn't appear?

After testing it, if you set the lock setting in the settings, it will appear well without any problems. Unlike before, if you shut down and run the emulator again, it does not run at the boot stage as if you were booting the phone, but loads it immediately, so if you shut down and re-run the emulator on the home screen, the lock screen may not appear. However, if you press the power on/off button of the controller button next to the adv reboot or emulator, the lock screen will appear normally.