我有8个按钮，我想每按一次按钮就显示一张图片。
我想知道的是，我需要有8个功能来显示这些图像吗？或者有更简单的方法吗？
这就是我是如何做到这一点，它的工作原理，因为它应该，但我不想重复同样的事情一遍又一遍？
var imageView1:UIImageView!
var imageView2:UIImageView!
var imageView3:UIImageView!
override func viewDidLoad() {
super.viewDidLoad()
showImage1()
showImage2()
showImage3()
tapGestureRecognizerFunc()
}
@objc func button1Tap() {
if self.imageView1.isHidden {
self.imageView1.isHidden = false
}else{
self.imageView1.isHidden = true
}
}
@objc func button2Tap() {
if self.imageView2.isHidden {
self.imageView2.isHidden = false
}else{
self.imageView2.isHidden = true
}
}
@objc func button3Tap() {
if self.imageView3.isHidden {
self.imageView3.isHidden = false
}else{
self.imageView3.isHidden = true
}
}
func showImage1() {
imageView1 = UIImageView(frame: CGRect(x: 271, y: 8, width: 29, height: 29))
imageView1.image = UIImage(named: "Done.png")
imageView1.contentMode = .scaleAspectFit
View1.addSubview(imageView1)
imageView1.isHidden = true
}
func showImage2() {
imageView2 = UIImageView(frame: CGRect(x: 271, y: 8, width: 29, height: 29))
imageView2.image = UIImage(named: "Done.png")
imageView2.contentMode = .scaleAspectFit
View2.addSubview(imageView2)
imageView2.isHidden = true
}
func showImage3() {
imageView2 = UIImageView(frame: CGRect(x: 271, y: 8, width: 29, height: 29))
imageView2.image = UIImage(named: "Done.png")
imageView2.contentMode = .scaleAspectFit
View3.addSubview(imageView2)
imageView2.isHidden = true
}
func tapGestureRecognizerFunc () {
let exercise1Tap = UITapGestureRecognizer(target: self, action: #selector(button1Tap))
exercise1Tap.numberOfTapsRequired = 2
View1.addGestureRecognizer(exercise1Tap)
let exercise2Tap = UITapGestureRecognizer(target: self, action: #selector(button2Tap))
exercise2Tap.numberOfTapsRequired = 2
View2.addGestureRecognizer(exercise2Tap)
let exercise3Tap = UITapGestureRecognizer(target: self, action: #selector(button3Tap))
exercise3Tap.numberOfTapsRequired = 2
View3.addGestureRecognizer(exercise3Tap)
}是的，我是新手
1条答案
按热度按时间zdwk9cvp1#
因为我不知道，在哪里以及如何创建按钮，这是很难回答。以下只是一个提示。
1.您应该使用UIImageView的数组
1.您的回调应使用Form buttonAction（发送者：UIButton）
1.您可以使用按钮的标记来获取相应按钮的编号
例如：
类ViewController：UIViewController {
}