发散
理解手势生命周期可以实现类似 水果忍者,还有笔画的效果
//
// LockGestureView.swift
// 手势解锁swift
//
// Created by lotawei on 16/12/8.
// Copyright © 2016年 lotawei. All rights reserved.
//
import UIKit
import CoreGraphics
class LockGestureView: UIView {
private let imgsize = 50
private var pawd:String!
private var rowcount = 3
var back:UIImage {
return #imageLiteral(resourceName: "back_bg.png")
}
var btns: [UIButton]! = [UIButton]()
override init(frame: CGRect) {
super.init(frame: frame)
backgroundColor = #colorLiteral(red: 0.2392156869, green: 0.6745098233, blue: 0.9686274529, alpha: 1)
initialview()
}
convenience init(frame: CGRect, _ row:Int,_ pwd:String!) {
self.init(frame:frame)
self.rowcount = row
self.pawd = pwd
}
func initialview(){
//布局
let xpadding = (Int( self.bounds.size.width) - 3 * imgsize) / 4 // 计算一个横间距
let ypadding = (Int( self.bounds.size.height) - (rowcount ) * imgsize) / (rowcount + 1)
var x = 0
var y = 0
for i in 0 ..< rowcount * 3 {
let btn = UIButton()
btn.isSelected = false
btn.setImage(#imageLiteral(resourceName: "gesture_node_highlighted"), for: .selected)
btn.setImage(#imageLiteral(resourceName: "gesture_node_highlighted"), for: .highlighted)
btn.setImage(#imageLiteral(resourceName: "gesture_node_normal"), for: .normal)
// 并设置一个tag
btn.tag = i
addSubview(btn)
btn.isUserInteractionEnabled = false
x=xpadding*((i%3)+1)+imgsize*(i%3)
y=ypadding*((i/rowcount)+1)+imgsize*(i/rowcount)
btn.frame = CGRect(x: x, y: y, width: imgsize, height: imgsize)
}
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
}
override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {
let touch = touches.first //
let point = touch?.location(in: self)
for abtn in self.subviews{
let btn = abtn as! UIButton
//表示滑动的时候这个矩形框是否包含这个点
if btn.frame.contains(point!) {
if btn.isSelected == false {
if !btns.contains(btn) {
btns.append(btn)
}
setNeedsDisplay()
}
btn.isSelected = true
}
}
}
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
//自定义视图如果设置交互为false默认会向俯视图传递响应莲 因此 解决方式 hittest
var result = ""
for btn in btns{
if btn.isSelected {
result += "\(btn.tag)"
print(result)
}
btn.isSelected = false
}
if (result == self.pawd) {
print("解锁成功！")
}
self.btns.removeAll()
setNeedsDisplay()
}
// 重写draw方法
override func draw(_ rect: CGRect) {
let cout = self.btns.count
let path = UIBezierPath()
for i in 0..<cout {
let point = self.btns[i].center
if i == 0 {
path.move(to: point)
}
else{
path.addLine(to: point)
}
}
UIColor.blue.setStroke()//画笔颜色
path.lineWidth = 3
path.stroke()
}
}