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手势之前先来个旋转。其它的简单动画同理
对视图进行旋转操作
func test8() {
let view1=UIView(frame: CGRect(x: 50, y: 150, width: 200, height: 50));
view1.backgroundColor=UIColor.brown;
self.view.addSubview(view1);
//创建一个放射变换变量 可用于平移 旋转 缩放 换路径 图形上下文
var transform=view1.transform;
//旋转 45度
transform=transform.rotated(by: 3.14/4);
view1.transform=transform;
}使用手势功能给视图添加点击事件实现交互
func test9() {
let imageView=UIImageView(frame: CGRect(x: 32, y: 80, width: 256, height: 256));
imageView.image=UIImage(named: "Pic4");
//开启视图对象的交互功能
imageView.isUserInteractionEnabled=true;
self.view.addSubview(imageView);
//创建手势检测类 抽象类 定义了所有手势的基本行为。有6个子类
let guesture = UITapGestureRecognizer(target: self, action: #selector(ViewController.test9OnClick));
imageView.addGestureRecognizer(guesture);
}
@objc func test9OnClick(){
//创建一个弹窗
let alertView = UIAlertController(title: "title", message: "test9的点击事件", preferredStyle: UIAlertControllerStyle.alert);
//为窗口添加一个按钮。用来关闭弹窗
let okAction=UIAlertAction(title: "关闭窗口", style:.default,handler:nil);
alertView.addAction(okAction);
self.present(alertView,animated: true,completion: nil);
}使用手势功能给视图添加长按事件实现交互
func test10() {
let view = UIImageView(frame: CGRect(x: 32, y: 80, width: 256, height: 256))
view.image=UIImage(named: "Pic5");
view.isUserInteractionEnabled=true;
self.view.addSubview(view);
//长按手势对象
let guesture = UILongPressGestureRecognizer(target: self, action: #selector(ViewController.test10LongOnClick));
view.addGestureRecognizer(guesture);
}
@objc func test10LongOnClick(guesture:UILongPressGestureRecognizer){
if (guesture.state==UIGestureRecognizerState.began) {
let dialog=UIAlertController(title: "标题", message: "内容", preferredStyle: UIAlertControllerStyle.alert);
let okAction=UIAlertAction(title: "ok", style: .default, handler: nil);
dialog.addAction(okAction);
self.present(dialog,animated: true,completion: nil);
}
}手势双击操作
func test11() {
let view = UIImageView(frame: CGRect(x: 32, y: 80, width: 256, height: 256))
view.image=UIImage(named: "Pic1");
view.isUserInteractionEnabled=true;
self.view.addSubview(view);
let guesture = UITapGestureRecognizer(target: self, action: #selector(ViewController.test11DoubleOnClick));
//设置点击次数
guesture.numberOfTapsRequired=2;
//设置为单次双击事件
guesture.numberOfTouchesRequired=1
view.addGestureRecognizer(guesture);
}
@objc func test11DoubleOnClick(){
let alert = UIAlertController(title: "标题", message: "content", preferredStyle: UIAlertControllerStyle.alert);
alert.addAction(UIAlertAction(title: "ok", style: .default, handler: nil));
self.present(alert,animated: true,completion: nil);
}