question: private void onPasswordFocusChanged ( boolean hasFocus ) { if ( hasFocus ) { showViewPasswordButton ( ) ; } else { hidePassword ( ) ; hidePasswordButton ( ) ; } }
target:  Handles changes in focus on the text input for the password (basic authorization). When (hasFocus), the button to toggle password visibility is shown. When (!hasFocus), the button is made invisible and the password is hidden.