android 中的 getDecorView() 和 peekDecorView() 有什么区别
What is difference between getDecorView() and peekDecorView() in android
getDecorView() 和 peekDecorView() 有什么区别，
他们 return
getDecoreView :
Retrieve the top-level window decor view (containing the standard
window frame/decorations and the client's content inside of that),
which can be added as a window to the window manager.
Return : the top-level window decor view.
peekDecorView() :
Retrieve the current decor view, but only if it has already been
created; otherwise returns null.
Return : the top-level window decor or null.
getDecorView() 和 peekDecorView() 有什么区别， 他们 return
getDecoreView :
Retrieve the top-level window decor view (containing the standard window frame/decorations and the client's content inside of that), which can be added as a window to the window manager.
Return : the top-level window decor view.
peekDecorView() :
Retrieve the current decor view, but only if it has already been created; otherwise returns null.
Return : the top-level window decor or null.