【发布时间】:2020-02-16 14:32:35
【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?
【问题讨论】:
标签: objective-c cocoa radio-button
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?
【问题讨论】:
标签: objective-c cocoa radio-button
这是一个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,这是取自here,但我添加了一些个人cmets来解释这个过程。
【讨论】:
The NSButton Class reference is here
按钮编程主题,特别是 Radio Button(带有示例代码) can be found here
【讨论】: