在 Cocoa Objective-C 中创建模态对话框或窗口? [英] Creating a Modal Dialog or Window in Cocoa Objective-C?

问题描述

我需要创建一个模态对话框，它是从一个 nib 文件加载的，并且应该在主窗口中单击按钮时显示.

I need to create an modal dialog, which is to loaded from a nib file and should be displayed on a button click in the main window.

我可以在 nib 文件中创建自定义窗口并在单击按钮时加载自定义对话框，但它不是模式对话框.我可以切换回主窗口.

I can create a custom window in a nib file and load the custom dialog on button click, but it's not a modal dialog. I can switch back to the main window.

MyWindowController 是 NSWindowController 子类.我使用下面的代码来显示我的窗口以响应按钮事件:

MyWindowController is the NSWindowController subclass. I used the code below to display my window in response to the button event:

MyWindowController *pController = [[MyWindowController alloc] 
                                   initWithWindowNibName:@"nibfilename"];
[MyWindowController showWindow:self];

推荐答案

有几种方法可以做到这一点——实际上 OS X 中有两种不同的模态对话框:application-modal 和 window-modal.用错了会惹恼人.一个是工作表，它附加到它影响的窗口(保存对话框就是一个例子).另一个是应用程序模式，它会阻止整个应用程序(打开对话框以这种方式工作，因为它们不适用于任何尚不存在的窗口).Apple 的 工作表文档 应该可以帮助您定位.

There are several ways to do this — and in fact two different kinds of modal dialog in OS X: application-modal and window-modal. Using the wrong one will annoy people. One is a sheet, which is attached to the window that it affects (save dialogs are an example of this). The other is application-modal, which blocks the whole application (open dialogs work this way, since they don't apply to any window that exists yet). Apple's sheet documentation should help get you oriented.

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