iOS UIControl类使用方法快速入门指南

iOS 开发中,UIControl类是一个基础但又重要的控件。它的作用是开发者用户的触摸操作、滑动和点击等事件,挺适合构建各种交互式控件。你可以通过设置UIControlEvents来监听事件,比如按钮点击或滑动改变值。只需要用addTarget(_:action:for:)方法指定响应的函数,就可以轻松响应用户行为。

比如,给按钮添加点击事件简单,像这样:

let button = UIButton()
button.addTarget(self, action: #selector(buttonTapped), for: .touchUpInside)
这个代码会在按钮被点击时触发buttonTapped方法。

更酷的是,UIControl可以响应多个事件,甚至为同一个事件添加多个目标,挺灵活的。你可以手动触发自定义事件,用sendAction(_:to:for:)方法,适合子视图间的事件传递。

如果你想精确控制控件的外观,可以通过状态管理来调整控件的显示效果。比如在按钮的normalhighlighteddisabled等状态下,设置不同的背景色或者标题颜色,能让交互更丰富。

,掌握UIControl的使用,对于构建交互式应用是相当有的。实践起来也不难,举个例子,你只要了解一些常用事件和状态管理,就能快速上手。

要是你有兴趣进一步了解,教程里有不少实际的代码示例,能帮你更好地掌握这些控件的使用。快去实践一下吧!

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UIControlDemo.zip 预估大小:63个文件
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UIControlDemo 文件夹
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bar.png 19KB
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UIControlDemoTests 文件夹
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UIControlDemoTests.m 887B
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Info.plist 758B
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UIControlDemo 文件夹
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UISegmentedControlViewController.m 1KB
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AppDelegate.h 287B
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UIAlertViewController.h 237B
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UISwitchViewController.h 239B
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UISwitchViewController.m 2KB
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UIDatePickerViewController.m 2KB
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UITextViewViewController.h 243B
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UIWebViewViewController.h 241B
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UIDatePickerViewController.h 247B
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Base.lproj 文件夹
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LaunchScreen.xib 4KB
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UITextViewViewController.m 2KB
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RootViewController.m 3KB
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UIStepperViewController.m 2KB
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UIPickerViewController.h 239B
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UISliderViewController.h 239B
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UIProgressViewViewController.m 2KB
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main.m 344B
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Images.xcassets 文件夹
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.DS_Store 6KB
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AppIcon.appiconset 文件夹
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Contents.json 585B
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RootViewController.h 231B
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Info.plist 1KB
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UISliderViewController.m 2KB
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UIPickerViewController.m 3KB
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UIAlertViewController.m 2KB
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UIActionSheetViewController.h 249B
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AppDelegate.m 2KB
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UIStepperViewController.h 241B
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UIProgressViewViewController.h 251B
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UISegmentedControlViewController.h 259B
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UIActivityIndicatorViewController.m 2KB
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.DS_Store 6KB
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UIActionSheetViewController.m 2KB
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UIActivityIndicatorViewController.h 261B
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UIWebViewViewController.m 2KB
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Day8.rtf 3KB
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控件-文字解释.rtf 1KB
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calendar.png 3KB
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jia.png 2KB
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jian.png 2KB
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.DS_Store 6KB
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UIControlDemo.xcodeproj 文件夹
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project.xcworkspace 文件夹
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contents.xcworkspacedata 158B
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xcshareddata 文件夹
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IDEWorkspaceChecks.plist 238B
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xcuserdata 文件夹
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Ims.xcuserdatad 文件夹
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UserInterfaceState.xcuserstate 11KB
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brooksong.xcuserdatad 文件夹
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UserInterfaceState.xcuserstate 20KB
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sxxb.xcuserdatad 文件夹
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UserInterfaceState.xcuserstate 14KB
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yuchen.xcuserdatad 文件夹
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UserInterfaceState.xcuserstate 28KB
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UserInterfaceState(冲突时的文件备份2016-09-19 09_38_08).xcuserstate 13KB
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qianfeng.xcuserdatad 文件夹
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UserInterfaceState.xcuserstate 13KB
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project.pbxproj 26KB
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xcuserdata 文件夹
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Ims.xcuserdatad 文件夹
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xcschemes 文件夹
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UIControlDemo.xcscheme 4KB
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xcschememanagement.plist 575B
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brooksong.xcuserdatad 文件夹
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xcschemes 文件夹
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UIControlDemo.xcscheme 4KB
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xcschememanagement.plist 575B
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xcdebugger 文件夹
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Breakpoints_v2.xcbkptlist 91B
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sxxb.xcuserdatad 文件夹
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xcschemes 文件夹
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UIControlDemo.xcscheme 4KB
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xcschememanagement.plist 575B
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yuchen.xcuserdatad 文件夹
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xcschemes 文件夹
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UIControlDemo.xcscheme 4KB
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xcschememanagement.plist 575B
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qianfeng.xcuserdatad 文件夹
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xcschemes 文件夹
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UIControlDemo.xcscheme 4KB
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xcschememanagement.plist 575B
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zip 文件大小:141.92KB