iOS引导功能的实现

在第一次安装App,  常常会出现一个引导界面,实现引导页部分透明，部分蒙层的引导, 网上也没有很好的实现demo，就用消息响应链写了一个很简单的例子，可以实现功能，供大家参考。

1.实现引导页代码

  1.1 定义一个热区视图。

    var lucencyView:UIView = {
        let view = UIView()
        view.backgroundColor = .green
        view.isUserInteractionEnabled = false
        return view
    }()

  1.2  消息过滤

      在热区内的消息都丢弃到上一级响应者处理，非热区的消息都自己处理掉。

  

    override func point(inside point: CGPoint, with event: UIEvent?) -> Bool {
        if self.lucencyView.frame.contains(point) {
            return false
        }else{
            return true
        }
    } 

2. 引导页都继承于GuideView

    引导页实现之后，就可以实现引导页的功能了。

3.GuideView的源码

  

//
//  GuideView.swift
//  GuideDemo
//
//  Created by liuyinghui on 2020/4/9.
//  Copyright © 2020 langnuo. All rights reserved.
//

import UIKit

class GuideView: UIView {

    var lucencyView:UIView = {
        let view = UIView()
        view.backgroundColor = .green
        view.isUserInteractionEnabled = false
        return view
    }()
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        self.addSubview(lucencyView)
        lucencyView.frame = CGRect.init(x: 100, y: 100, width: 100, height: 100)
    }
    
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    
    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
        
        print("引导页 \(String(describing: touches.first?.location(in: self)))")
    }
    
    override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {
        print("引导页  \(String(describing: touches.first?.location(in: self)))")
    }
    
    override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
        print("引导页  \(String(describing: touches.first?.location(in: self)))")
    }

    override func point(inside point: CGPoint, with event: UIEvent?) -> Bool {
        if self.lucencyView.frame.contains(point) {
            return false
        }else{
            return true
        }
    } 
}

 

Demo源码：https://download.youkuaiyun.com/download/liuyinghui523/12324732