You can control the "zoom and bright" of second stage byapplyingCamera function of Hardware manner and Phone(android)function ofSoftware manner.
Now look at yourself more brightly and larger.
Function :
UI SHOW/HIDE
UI LOCK
Switching from front/back camera
Changing UI color
Fill to the size of the device width.
Fill to the size of the device height.
Zoom control - by Camera and Phone
Bright control - by Camera and Phone
Some functions cannot be supported according to the featureofdevice.