xcode 如何创建从 NSWindow 模态弹出的 NSPanel（可可编程）
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How to create a NSPanel modally popuped from NSWindow (Cocoa programming)
提问by droughtrain
like NSPanel displayed after a button clicked in the NSWindow.
就像在 NSWindow 中单击按钮后显示的 NSPanel。
I looked for a lot but there is no simple example. Thanks for any help.
我找了很多，但没有简单的例子。谢谢你的帮助。
回答by Justin Boo
It can be done like this:
可以这样做：
-(IBAction)showButtonAction:(id)sender {
[[NSApplication sharedApplication] beginSheet:panelOutlet
modalForWindow:self.window
modalDelegate:self
didEndSelector:@selector(sheetDidEnd:returnCode:contextInfo:)
contextInfo:nil];
}
Attention:
注意力：
Don't forget to uncheck
NSPanel's Visible At Launchcheckbox in Attributes Inspectorand Release When Closedif you will use this panel not once.
如果您不打算使用此面板，请不要忘记取消选中Attributes Inspector 中
NSPanel的Visible At Launch复选框 和Release When Closed。
Result:
结果：
