可可弹出窗口动画

Question

I want to make popup window animation like when you try create new project in xcode:

I have been looking for documentation or examples but so far I have not found anything. Any of you knows how can I build this window popup animation?

I'll really appreciate your help

Answer 1

Are you talking about making a panel appear over the main window, sliding down?

In this case it's simple: make an NSWindow or NSPanel in Interface Builder, then connect it to an IBOutlet in your AppDelegate or your view controller.

Let's say the new outlet is named "myNewPanel", then you can call it on your window:

myExistingWindow.beginSheet(myNewPanel, completionHandler: nil)

And to close it:

myExistingWindow.endSheet(myNewPanel)