LTHRadioButton

略微受到谷歌材料单选按钮的启发。

下面的剪辑有 3 个部分：全速、25% 和 10%，但在将其转换为 GIF 后，它实际上使其更长，因此 10% 的部分需要很长时间。这是一个mp4链接;如果 Safari 不起作用，请尝试使用 Chrome - 对我来说它不起作用。

如何安装

Swift Package Manager

注意：这些说明适用于 Xcode 11 及更高版本。Xcode 11 是 Xcode 的第一个版本，它集成了 Swift Package Manager，使其比在命令行中更容易使用。如果您使用的是旧版本的 Xcode，我们建议您使用 CocoaPods。

1. 转到 Swift 软件包>文件>添加软件包依赖项...
2. 将 GitHub 上的存储库 URL 粘贴到 GitHub （https://github.com/rolandleth/LTHRadioButton.git） 到搜索栏中，然后点击 下一页 按钮：LTHRadioButton
3. Select what version you want to use, then hit next (Xcode will automatically suggest the current version Up to Next Major).
4. Select the library and then hit finish.LTHRadioButton
5. You're done!

CocoaPods

CocoaPods is a dependency manager for Cocoa projects. You can install it with the following terminal command:

gem install cocoapods

To integrate into your Xcode project using CocoaPods, specify it in your Podfile:LTHRadioButton

source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '9.0'
use_frameworks!

target '<Your Target Name>' do
  pod 'LTHRadioButton'
end

Then, run the following terminal command:

pod install

Manual

Drag from the folder into your Xcode project.LTHRadioButton.swiftsource

How to use

The initializer takes up to 3 params: a , a , and a . All of them are optional:diameterselectedColordeselectedColor

• diameter defaults to 18
• selectedColor defaults to a light blue
• deselectedColor defaults to UIColor.lightGray

It doesn't use Auto Layout internally, but after initialization it will have a proper size, so you can simply create constraints based on its and .frame.widthframe.height

Properties

selectedColor and have been made publicly customizable for cases like a with alternating row and radio colors, where the might dequeue a cell with one color for displaying a cell with a different color.deselectedColortableViewtableView

isSelected - Indicates whether the radio button is selected.

useTapGestureRecognizer - Indicates whether a tap gesture recognizer should be added to the control when setting callbacks. This defaults to just so that and can add the gesture recognizer automatically, but the recognizer is not added by default.trueonSelectonDeselect

• Settings this to will also add the required if needed.trueUITapGestureRecognizer
• Settings this to will also remove the if it was previously added.falseUITapGestureRecognizer

Methods

init(diameter: CGFloat = 18, selectedColor: UIColor? = nil, deselectedColor: UIColor? = nil) // Colors default internally if nil.
func select(animated: Bool = true) // Selects the radio button.
func deselect(animated: Bool = true) // Deselects the radio button.

Callbacks

You can make use of the and methods to add closures to be run when selecting/deselecting the control. Since these closures make most sense for taps and because there are no recognizers by default, these methods will also add one (and only one) to the control to handle the taps; the closure calls happen right as the animations begin.onSelectonDeselectUITapGestureRecognizer

If you'd like to use the callbacks but don't need the tap gesture recognizer, you can set to .useTapGestureRecognizerfalse

Example

let radioButton = LTHRadioButton(selectedColor: .red)
container.addSubview(radioButton)

radioButton.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
  radioButton.centerYAnchor.constraint(equalTo: container.centerYAnchor),
  radioButton.leadingAnchor.constraint(equalTo: container.leadingAnchor, constant: 16),
  radioButton.heightAnchor.constraint(equalToConstant: radioButton.frame.height),
  radioButton.widthAnchor.constraint(equalToConstant: radioButton.frame.width)]
)

radioButton.onSelect {
  print("I'm selected.")
}

radioButton.onDeselect {
  print("I'm deselected.")
}

[...]

radioButton.select() // I'm selected.

[...]

radioButton.deselect(animated: false) // I'm deselected.

Apps using this control

If you're using this control, I'd love hearing from you!

License

Licensed under MIT. If you'd like (or need) a license without attribution, don't hesitate to contact me.

GitHub

https://github.com/rolandleth/LTHRadioButton