前言： 對閉包使用 不是很明白，可能會造成內存泄漏，請多擔待！
效果圖：
代碼
//
// LHWhellPlantImage.swift
// safari
//
// Created by 磊懷王 on 2019/12/2.
// Copyright © 2019 磊懷王. All rights reserved.
//
import UIKit
class LHWhellPlantImage: NSObject,UIScrollViewDelegate {
override init() {
super.init()
}
var line_Arr : [UIView] = Array.init()
var globalScroll : UIScrollView? = nil
/// 輪播圖的實現類
/// - Parameters:
/// - imageArr: 原始圖片數組 即圖片的名字
/// - superView: 所要加載的父視圖
/// - rect: 輪播圖的位置
func initWhellPantImage(_ imageArr : Array<String>,_ superView : UIView,_ rect : CGRect) -> UIView {
let vi = UIView.init(frame: rect)
superView.addSubview(vi)
let imageScro : UIScrollView = UIScrollView.init()
self.globalScroll = imageScro
imageScro.frame = CGRect.init(x: 0, y: 0, width: Int(vi.frame.size.width), height: Int(vi.frame.size.height))
imageScro.backgroundColor = UIColor.black
vi.addSubview(imageScro)
let scroW = imageScro.frame.size.width
let scroH = imageScro.frame.size.height
var newImageArr : Array<String> = Array.init()
newImageArr += imageArr
newImageArr.insert(imageArr.last!, at: 0)
newImageArr.insert(imageArr.first!, at: newImageArr.count)
for tempImage in newImageArr.enumerated() {
print(tempImage)
let imageR : CGRect = CGRect.init(x: scroW * CGFloat(tempImage.offset), y: 0, width: scroW, height: scroH)
let imageV = UIImageView.init(frame: imageR)
imageV.image = UIImage.init(named: tempImage.element)
imageScro.addSubview(imageV)
// 添加點擊事件
let tap = UITapGestureRecognizer.init(target: self, action: #selector(touchWhellImage(_:)))
imageV.addGestureRecognizer(tap)
imageV.isUserInteractionEnabled = true
imageV.tag = 100 + tempImage.offset
}
imageScro.contentSize = CGSize.init(width: scroW * CGFloat(newImageArr.count), height: scroH)
imageScro.contentOffset = CGPoint.init(x: scroW, y: 0);
imageScro.isUserInteractionEnabled = true
imageScro.isPagingEnabled = true
imageScro.delegate = self
return vi
}
let markW = 12
var allPageNum = 0
func initWhellWithMark(_ imageArr : Array<String>,_ superView : UIView,_ rect : CGRect) -> Void {
allPageNum = imageArr.count
let endScroll = self.initWhellPantImage(imageArr, superView, rect)
var diff_v = 0.0
for tempObj in imageArr.enumerated() {
var line_w = markW
if tempObj.offset == 0 {
line_w += 6
}else{
line_w = 12
}
let point_x = Float(imageArr.count) * Float(markW) * 1.5 + Float(markW)
let l_rect = CGRect.init(x: rect.width - CGFloat(point_x) + CGFloat(diff_v), y: rect.size.height - CGFloat(14), width: CGFloat(line_w), height: CGFloat(4))
let line = UIView.init(frame: l_rect)
line.backgroundColor = UIColor.white
endScroll.addSubview(line)
diff_v += Double(l_rect.size.width) + Double(markW) / 2.0
line_Arr.append(line)
}
self.autoBannerPage()
}
var currentP = 0
// 添加時間控制器
func autoBannerPage() -> Void {
let timer : Timer = Timer.scheduledTimer(withTimeInterval: 3, repeats: true) { (Timer) in
print("dongle")
UIView.animate(withDuration: 0.3, animations: {
[weak self] in self?.currentP += 1
self!.globalScroll?.contentOffset = CGPoint.init(x: (self?.globalScroll?.frame.size.width)! * CGFloat(self!.currentP + 1), y: 0)
self!.autoLine(self!.currentP)
print("block動畫 --- \(String(describing: self?.currentP))")
}) { (complete) in
if self.currentP == self.allPageNum {
self.currentP = 0
self.globalScroll?.contentOffset = CGPoint.init(x: (self.globalScroll?.frame.size.width)!, y: 0)
}
print("block裏面 --- \(self.currentP)")
}
print("block外面 --- \(self.currentP)")
}
timer.fireDate = Date.init(timeIntervalSinceNow: 3)
}
func autoLine(_ page : Int) -> Void {
if page == allPageNum {
let line_y = line_Arr.first?.frame.origin.y
let line_h = line_Arr.first?.frame.size.height
for objc in line_Arr.enumerated() {
if objc.element == line_Arr.first! {
objc.element.frame = CGRect.init(x: objc.element.frame.origin.x, y: line_y!, width: CGFloat(Float(markW) * 1.5), height: line_h!)
}else if objc.element == line_Arr.last! {
objc.element.frame = CGRect.init(x: objc.element.frame.origin.x + CGFloat(Float(markW) * 0.5), y: line_y!, width: CGFloat(markW), height: line_h!)
}else{
objc.element.frame = CGRect.init(x: objc.element.frame.origin.x + CGFloat(Float(markW) * 0.5), y: line_y!, width: CGFloat(markW), height: line_h!)
}
}
}else{
let currentL = line_Arr[page]
let next = line_Arr[page - 1]
let line_w = currentL.frame.size.width
let line_h = currentL.frame.size.height
let line_y = currentL.frame.origin.y
currentL.frame = CGRect.init(x: currentL.frame.origin.x - CGFloat(Float(markW) / 2), y: line_y, width: line_w + CGFloat(Float(markW) / 2), height: line_h)
next.frame = CGRect.init(x: next.frame.origin.x, y: line_y, width: CGFloat(markW), height: line_h)
}
}
func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
let scroW = scrollView.frame.size.width
let pageAll = scrollView.contentSize.width / scroW
let page = scrollView.contentOffset.x / scroW
if page == 0 {
scrollView.contentOffset = CGPoint.init(x: scroW * CGFloat(pageAll - 2), y: 0)
}else if page == (pageAll - 1){
scrollView.contentOffset = CGPoint.init(x: scroW, y: 0)
}
}
func scrollViewDidScroll(_ scrollView: UIScrollView) {
let page = scrollView.contentOffset.x / scrollView.frame.size.width;
let parcentPage = Double(page) - floor(Double(page))
let allPage = scrollView.contentSize.width / scrollView.frame.size.width - CGFloat(2)
self.currentP = Int(page - 1)
if parcentPage == 0 {
return
}
var currentV = UIView.init()
var nextV = UIView.init()
if page < 1 {
currentV = line_Arr.first!
nextV = line_Arr.last!
}else if page > allPage {
currentV = line_Arr.last!
nextV = line_Arr.first!
}else{
currentV = line_Arr[Int(floor(Double(page))) - 1]
nextV = line_Arr[Int(ceil(Double(page)) - 1)]
}
//當前 指示圖
let point_x = scrollView.frame.size.width - (CGFloat(Float(allPage) * Float(Float(markW) * 1.5))) - CGFloat(markW)
let current_v_x = Double(point_x) + (1.5 * Double(markW)) * (floor(Double(page)) - 1)
let current_v_y = Double(currentV.frame.origin.y)
let current_v_w = Float(markW) * 1.5 - Float(Double(markW / 2) * parcentPage)
let current_v_h = Double(currentV.frame.size.height)
// 接下來的指示圖
let next_v_x = current_v_x + Double(Float(markW) * 1.5) + Double(markW / 2) - Double((Float(markW) / 2) * Float(parcentPage))
let next_v_w = Double(markW) + Double(markW / 2) * parcentPage
if page < 1 {
for temp in line_Arr.enumerated() {
if temp.offset == 0 {
currentV.frame = CGRect.init(x: Double(point_x), y: current_v_y, width: Double(markW) * 1.5 - Double(markW) * 0.5 * (1.0 - parcentPage), height: current_v_h);
}else if temp.offset == Int(allPage - 1) {
let n_x = Double(point_x) + (1.5 * Double(markW)) * Double(Int(allPage) - 1) + Double(markW) / 2.0
nextV.frame = CGRect.init(x: n_x - (Double(markW) / 2.0) * (1.0 - parcentPage), y: current_v_y, width: Double(markW) + (Double(markW) / 2.0) * (1.0 - parcentPage) , height: current_v_h)
}else{
let v_x = Double(point_x) + (1.5 * Double(markW)) * Double(temp.offset) + Double(markW) / 2.0
temp.element.frame = CGRect.init(x: v_x - Double(Float(markW) / 2.0) * (1.0 - parcentPage), y: current_v_y, width: Double(markW), height: current_v_h)
}
}
}else if page > allPage {
for temp in line_Arr.enumerated() {
if temp.offset == Int(allPage - 1) {
currentV.frame = CGRect.init(x: current_v_x + Double(Float(markW) / 2) * parcentPage, y: current_v_y, width: Double(current_v_w), height: current_v_h);
}else if temp.offset == 0 {
nextV.frame = CGRect.init(x: Double(point_x), y: current_v_y, width: Double(markW) + (Double(markW) / 2.0) * parcentPage , height: current_v_h)
}else{
let v_x = Double(point_x) + (1.5 * Double(markW)) * Double(temp.offset)
temp.element.frame = CGRect.init(x: v_x + Double(Float(markW) / 2.0) * parcentPage, y: current_v_y, width: Double(markW), height: current_v_h)
}
}
}else{
currentV.frame = CGRect.init(x: current_v_x, y: current_v_y, width: Double(current_v_w), height: current_v_h)
nextV.frame = CGRect.init(x: Double(next_v_x), y: current_v_y, width: next_v_w, height: current_v_h)
}
print("拖動了---\(page) ----- \(ceil(Double(page))) ---- \(parcentPage)")
}
@objc func touchWhellImage(_ ges : UITapGestureRecognizer) -> Void {
print("點擊了第\(ges.view!.tag - 100)張圖片")
}
}
引用：
func bannerScroller() -> Void {
let imageArr : Array = ["scroll001","scroll002","scroll003","scroll004","scroll005","scroll006","scroll007","scroll008","scroll009"]
let rect : CGRect = CGRect.init(x: 10, y: 200, width: UIScreen.main.bounds.size.width - 20, height: 100)
whell.initWhellWithMark(imageArr, self.view, rect)
}
我是磊懷 2849765859 是我qq 歡迎聯繫我，批評指正