以编程方式创建Cocoa单选按钮

Question

我需要以编程方式创建一个Cocoa单选按钮,任何人都可以解释如何完成此操作或发布一个良好的链接,以显示如何做得好.

Answer 1

以下是以编程方式创建单选按钮的示例代码:

//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,这是从这里采取的,但我添加了一些个人意见来解释这个过程.