java(window,activity,"android.app.Activity.getWindow")
java(lp,window,"android.view.Window.getAttributes")
//0-1之间
javass(nu,lp,"android.view.WindowManager$LayoutParams","screenBrightness",0.55)
javax(null,window,"android.view.Window","setAttributes","android.view.WindowManager$LayoutParams",lp)