如何在Swift中更改UIButton镜像
如何在Swift中更改UIButton镜像
提问于 2014-11-10 13:32:14
我正在尝试使用Swift更改UIButton的图像...我该怎么办呢
这是OBJ-C code.but，我不知道斯威夫特：
[playButton setImage:[UIImage imageNamed:@"play.png"] forState:UIControlStateNormal];回答 9
Stack Overflow用户
回答已采纳
发布于 2014-11-10 13:39:23
从您的Obc-C代码中，我认为您想要设置一个Image for按钮，因此尝试这样做：
let playButton = UIButton(type: .Custom)
if let image = UIImage(named: "play.png") {
playButton.setImage(image, forState: .Normal)
}简而言之：
playButton.setImage(UIImage(named: "play.png"), forState: UIControlState.Normal)对于Swift 3：
let playButton = UIButton(type: .custom)
playButton.setImage(UIImage(named: "play.png"), for: .normal)Stack Overflow用户
发布于 2018-06-16 22:12:11
在Swift 4中，(Xcode9)示例将按钮图片设置为打开或关闭(btnRec)：
var bRec:Bool = true
@IBOutlet weak var btnRec: UIButton!
@IBAction func btnRec(_ sender: Any) {
bRec = !bRec
if bRec {
btnRec.setImage(UIImage(named: "MicOn.png"), for: .normal)
} else {
btnRec.setImage(UIImage(named: "MicOff.png"), for: .normal)
}
}Stack Overflow用户
发布于 2015-10-19 13:30:13
假设这是您连接的UIButton Name，如下所示
@IBOutlet var btn_refresh: UIButton!你可以直接把你的图片放在三种模式下
// for normal state
btn_refresh.setImage(UIImage(named: "xxx.png"), forState: UIControlState.Normal)
// for Highlighted state
btn_refresh.setImage(UIImage(named: "yyy.png"), forState: UIControlState.Highlighted)
// for Selected state
btn_refresh.setImage(UIImage(named: "zzzz.png"), forState: UIControlState.Selected)在您的按钮操作上
//MARK: button_refresh action
@IBAction func button_refresh_touchup_inside(sender: UIButton)
{
//if you set the image on same UIButton
sender.setImage(UIImage(named: "newimage.png"), forState: UIControlState.Normal)
//if you set the image on another UIButton
youranotherbuttonName.setImage(UIImage(named: "newimage.png"), forState: UIControlState.Normal)
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/26837371
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