Swift - 触摸事件响应机制(UiView事件传递)

import UIKit

class FatherView: UIView {

override func hitTest(point: CGPoint, withEvent event: UIEvent?) -> UIView? {

print("Detect Touch Event")

if (self.hidden == false) && (alpha > 0) {

for subview in subviews {

if CGRectContainsPoint(subview.frame, point) {

if subview.isKindOfClass(ChildView1) {

print("view 1")

return subview

}

if subview.isKindOfClass(ChildView2) {

print("view 2")

return subview

}

}

}

}

return nil

}

}

import UIKit

class ChildView1: UIView {}

import UIKit

class ChildView2: UIView {}

import UIKit

class ViewController: UIViewController {

let father = FatherView()

let child1 = ChildView1()

let child2 = ChildView2()

let child3 = ChildView2()

override func viewDidLoad() {

super.viewDidLoad()

father.frame = CGRectMake(0, 0, 100, 100)

child1.frame = CGRectMake(20, 20, 20, 20)

child2.frame = CGRectMake(120, 120, 120, 120)

child3.frame = CGRectMake(200, 200, 120, 120)

//        father.clipsToBounds = true

father.backgroundColor = UIColor.grayColor()

child1.backgroundColor = UIColor.redColor()

child2.backgroundColor = UIColor.blueColor()

child3.backgroundColor = UIColor.greenColor()

view.addSubview(father)

father.addSubview(child1)

father.addSubview(child2)

father.addSubview(child3)

child1.addGestureRecognizer(

UITapGestureRecognizer(target: self, action: #selector(touchTest1)))

child2.addGestureRecognizer(

UITapGestureRecognizer(target: self, action: #selector(touchTest2)))

child3.addGestureRecognizer(

UITapGestureRecognizer(target: self, action: #selector(touchTest3)))

}

override func didReceiveMemoryWarning() {

super.didReceiveMemoryWarning()

}

func touchTest1() {

print("test 1\n")

}

func touchTest2() {

print("test 2\n")

}

func touchTest3() {

print("test 3\n")

}

}