问题描述

我需要以编程方式制作一个 Cocoa 单选按钮，谁能解释一下如何做到这一点或如何做好?

I need to make a Cocoa radio button programmatically, can anyone explain how this might be done or how to do this well?

推荐答案

下面是一个以编程方式创建单选按钮的示例代码:

Here's a sample code for creating radio buttons programmatically:

//create the radio button prototype
NSButtonCell *proto = [[NSButtonCell alloc] init];
[proto setTitle:@"Options"];
[proto setButtonType: NSRadioButton];

//define the matrix size where you'll put the radio buttons
NSRect matrixRect = NSMakeRect(20.0,20.0,125.0,125.0);

//define the matrix specifying that it will contain radio buttons of
//prototype "proto" defined above, and that it will have 3 radio buttons 
//arranged on 1 column
NSMatrix *matrix = [[NSMatrix alloc] initWithRect: matrixRect
                                     mode: NSRadioModeMatrix
                                     prototype: (NSCell *)proto
                                     numberOfRows:3 numberOfColumns:1];

//this assumes that you connected the window object to an outlet
[[windowOutlet contentView] addSubview: matrix];

//set the radio buttons' titles by getting references to the matrix's cells
NSArray *cells = [matrix cells];
[[cells objectAtIndex:0] setTitle:@"Option 1"];
[[cells objectAtIndex:1] setTitle:@"Option 2"];
[[cells objectAtIndex:2] setTitle:@"Option 3"];

[proto release];
[matrix release];

玩得开心！是的，这取自 这里，但是我添加了一些个人评论来解释这个过程.

Have fun! Yes, this is taken from here, but i added some personal comments to explain the process.

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