Find centralized, trusted content and collaborate around the technologies you use most.
Teams
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
在WindowManager.LayoutParams类中有一个常量叫做ALPHA_CHANGED. 它的目的是什么?我似乎找不到任何关于它的东西。
WindowManager.LayoutParams
ALPHA_CHANGED
alpha 值与视图的不透明度有关(即,它的半透明程度)。ALPHA_CHANGED 用于根据更改触发事件。