xcode UISwitch 设置开/关图像
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/36928861/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
UISwitch set on/off Image
提问by YungCheng Su
I want to set my Switch like this:
我想这样设置我的 Switch：
But I try in ios9 , it does not work. I saw in apple UISwitch Class Reference. It says that :
但是我在 ios9 中尝试，它不起作用。我在苹果 UISwitch 类参考中看到。它说：
Discussion In iOS 7, this property has no effect.
讨论 在 iOS 7 中，此属性无效。
How about iOS 9? Any one success?
iOS 9 怎么样？任何一个成功？
My Code:
我的代码：
switch1 = UISwitch(frame:CGRectMake(self.view.frame.width/2 - 20, 400, 10, 100))
switch1.on = true
switch1.onTintColor = UIColor.lightGrayColor()
switch1.tintColor = UIColor.greenColor()
switch1.thumbTintColor = UIColor.blackColor()
//set on/off image
//设置开/关图像
switch1.onImage = UIImage(named: "on-switch")
switch1.offImage = UIImage(named: "off-switch")
回答by rob mayoff
Use a UIButtoninstead.
使用 aUIButton代替。
let switchButton = UIButton(type: .Custom)
switchButton.selected = true
switchButton.setImage(UIImage(named: "on-switch"), forState: .Selected)
switchButton.setImage(UIImage(named: "off-switch"), forState: .Normal)
Use switchButton.isSelectedinstead of switch1.on. You'll have to toggle switchButton.isSelectedwhen it is tapped, which you can do like this:
使用switchButton.isSelected代替switch1.on。您必须switchButton.isSelected在点击它时进行切换，您可以这样做：
switchButton.isSelected.toggle()
回答by Kasey
Not an exact answer to your question, but if you want a completely custom button switch programmatically (that you can add text to), this will work too:
不是您问题的确切答案，但如果您想要以编程方式完全自定义的按钮开关（您可以向其添加文本），这也将起作用：
import UIKit
class RDHiddenVisibleButton: UIButton {
// Hidden / Visible Button Function
var isOn = false
override init(frame: CGRect) {
super.init(frame: frame)
initButton()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
initButton()
}
func initButton() {
layer.borderWidth = 2.0
layer.borderColor = Colors.radiusGreen.cgColor
layer.cornerRadius = frame.size.height/2
setTitleColor(Colors.radiusGreen, for: .normal)
addTarget(self, action: #selector(RDHiddenVisibleButton.buttonPressed), for: .touchUpInside)
}
@objc func buttonPressed() {
activateButton(bool: !isOn)
}
func activateButton(bool: Bool) {
isOn = bool
let color = bool ? Colors.radiusGreen : .clear
let title = bool ? "Hidden" : "Visible"
let titleColor = bool ? . white : Colors.radiusGreen
setTitle(title, for: .normal)
setTitleColor(titleColor, for: .normal)
backgroundColor = color
}
}
