在Swift项目中，我们可以导入任意用Objective-C写的框架，代码库等。下面以Swift调用Objective-C编写的颜色选择器KKColorListPicker为例。

效果图如下：

实现步骤：

1，首先在项目里导入KKColorListPicker的源码（整个文件夹，在项目上有键“Add Files To XXX”）.

2，手工创建桥接头文件bridge.h来包含需要引用的Objective-C头文件，内容如下：

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//KKColoRSSchemeType.h已经包含在KKColorListViewController.h #import "KKColorListViewController.h" "KKColor.h"

3，选择项目，在Build Setting -> Swift Compiler-Code generation -> Objective-C Bridging Header设置里添加bridge.h，如下图所示：

4，页面使用ViewController.swift

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import UIKit class ViewController : UIViewController , KKColorListViewControllerDelegate { //Object-C编写的颜色选择器视图 var viewColor: KKColorListViewController ! override func viewDidLoad() { super .viewDidLoad() // Do any additional setup after loading the view,typically from a nib. //初始化颜色选择面板 //这个颜色选择面板是用OC开发，我们导入头文件后就能在Swift里调用了 viewColor = (schemeType: KKColoRSSchemeType . Crayola ) //此类实现了颜色选择面板的代理协议，并重载了选择颜色和关闭2个回调函数 viewColor.delegate = self //创建一个按钮 button: UIButton = (type: UIButtonType System ) ; //设置按钮位置和大小 button.frame= CGRectMake (10,50,100,30); //设置按钮文字 button.setTitle( "选择背景色" ottom:auto!important; float:none!important; height:auto!important; left:auto!important; line-height:1.5em!important; margin:0px!important; overflow:visible!important; padding:1px 0px!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,forState: UIControlState normal ) button.addTarget( self ottom:auto!important; float:none!important; height:auto!important; left:auto!important; line-height:1.5em!important; margin:0px!important; overflow:visible!important; padding:1px 0px!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,action: Selector ( "selColor:" ),forControlEvents: UIControlEvents TouchUpInside ) .view.addSubview(button); } //点击选择背景色的事件操作 selColor(sender: AnyObject ) { //显示颜色选择面板 .presentViewController(viewColor,animated: true ottom:auto!important; float:none!important; height:auto!important; left:auto!important; line-height:1.5em!important; margin:0px!important; overflow:visible!important; padding:1px 0px!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,completion: nil ) } //选择颜色后回调 colorListController(controller: ottom:auto!important; float:none!important; height:auto!important; left:auto!important; line-height:1.5em!important; margin:0px!important; overflow:visible!important; padding:1px 0px!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,didSelectColor color: KKColor ) { //关闭颜色选择器视图 viewColor.dismissViewControllerAnimated( ) //设置当前视图的背景颜色为用户选择的颜色 .view.backgroundColor = color.uiColor() } //用户在颜色选择器视图里点击了关闭 colorListPickerDidComplete(controller: ) { //只需要关闭颜色选择器视图 ) } didReceiveMemoryWarning() { .didReceiveMemoryWarning() // dispose of any resources that can be recreated. }