From 02a0271b15f7507cff06748d33a123daa58a93da Mon Sep 17 00:00:00 2001
From: 无故事王国 <841720330@qq.com>
Date: 星期三, 01 十一月 2023 16:16:51 +0800
Subject: [PATCH] 重写Banner
---
WanPai/Common/View/CommonBannerView.swift | 400 ++++++++++++++++++++++++++------------------------------
1 files changed, 188 insertions(+), 212 deletions(-)
diff --git a/WanPai/Common/View/CommonBannerView.swift b/WanPai/Common/View/CommonBannerView.swift
index 06399c9..1e4df52 100644
--- a/WanPai/Common/View/CommonBannerView.swift
+++ b/WanPai/Common/View/CommonBannerView.swift
@@ -7,218 +7,194 @@
import UIKit
import SDWebImage
-
-class CommonBannerView: UIView,UIScrollViewDelegate {
-
- //图⽚⽔平放置到scrollView上
- private var scrollView:UIScrollView = UIScrollView()
- //⼩圆点标识
- private var pageControl:UIPageControl = UIPageControl()
- private var imageViews:Array = Array<UIImageView>()
-
-
- //图⽚集合
- private var images:Array<String> = []
- private var type:ImageType?
-
-// private var width:CGFloat = 0
-// private var height:CGFloat = 0
-
- private var currIndex = 0
- private var clickBlock :(Int)->Void = {index in}
-
- private var timer:Timer?
-
- // 默认⾃动播放 设置为false只能⼿动滑动
- var isAuto = true
- // 轮播间隔时间 默认6秒可以⾃⼰修改
- var interval:Double = 3
-
- private var startOffsetX:CGFloat = 0
- private var fillBounds:CGRect?
-
- override func layoutSubviews() {
- super.layoutSubviews()
- }
-
- public func setImages(images:Array<String>,type:ImageType
- = .Image,fillBounds:CGRect? = nil,imageClickBlock:@escaping (Int) -> Void) {
- self.type = type
- self.fillBounds = fillBounds
- self.images = images
- self.clickBlock = imageClickBlock
- self.initLayout()
- }
-
- private func initLayout(){
- if(self.images.count == 0){
- return
- }
-
- if fillBounds != nil{
- width = fillBounds!.width
- height = fillBounds!.height
- scrollView.frame = CGRect(origin: .zero, size: fillBounds!.size)
- }else{
- width = self.bounds.width
- height = self.bounds.height
- scrollView.frame = self.bounds
- }
-
- scrollView.contentSize = CGSize(width:width * CGFloat(images.count +
- 2),height:height)
- scrollView.contentOffset = CGPoint(x:width,y:0)
- scrollView.isUserInteractionEnabled = true
- scrollView.isPagingEnabled = true
- scrollView.isScrollEnabled = images.count > 1
- scrollView.contentInsetAdjustmentBehavior = .never
- scrollView.showsHorizontalScrollIndicator = false
- scrollView.delegate = self
- self.addSubview(scrollView)
-
- var image = UIImageView()
- image.sizeToFit()
- image.frame = CGRect(x:0,y:0,width:width,height:height)
- image.contentMode = .scaleToFill
- image.tag = images.count - 1
- image.isUserInteractionEnabled = true
- setImage(image: image, index: images.count - 1)
- scrollView.addSubview(image)
- addTapGesWithImage(image: image)
-
- for i in 1 ... images.count{
- let image = UIImageView()
- image.frame = CGRect(x:width *
- CGFloat(i),y:0,width:width,height:height)
- image.contentMode = .scaleToFill
- image.isUserInteractionEnabled = true
- image.tag = i - 1
- scrollView.addSubview(image)
- setImage(image: image, index: i - 1)
- addTapGesWithImage(image: image)
- }
- image = UIImageView()
- image.sizeToFit()
- image.frame = CGRect(x:width * CGFloat(images.count +
- 1),y:0,width:width,height:height)
- image.contentMode = .scaleToFill
- image.tag = 0
- image.isUserInteractionEnabled = true
- scrollView.addSubview(image)
- setImage(image: image, index: 0)
- addTapGesWithImage(image: image)
-
-// pageControl.center = CGPoint(x:width/2,y:height - CGFloat(15))
- pageControl.isEnabled = true
- pageControl.numberOfPages = images.count
- pageControl.currentPageIndicatorTintColor = UIColor.white
- pageControl.pageIndicatorTintColor = UIColor.gray.withAlphaComponent(0.5)
- pageControl.isUserInteractionEnabled = false
- pageControl.isHidden = images.count == 1
- self.addSubview(pageControl)
- pageControl.snp.makeConstraints { make in
- make.bottom.equalToSuperview().offset(0)
- make.centerX.equalToSuperview()
- }
-
- //当前显示的只有 center_image 其他两个只是⽤来增加滑动时效果⽽已，不
- //addTapGesWithImage(image: center_image)
- if(isAuto){
- openTimer()
- }
- setCurrent(currIndex: 0)
- }
-
- private func setImage(image:UIImageView,index:Int){
- if(type == .Image){
- image.image = UIImage.init(named:images[index])
- }else{
- image.sd_setImage(with: URL(string: images[index]))
- }
- }
-
- func setCurrent(currIndex:Int,animate:Bool = false) {
- if(currIndex < 0){
- self.currIndex = images.count - 1
- }else{
- self.currIndex = currIndex
- }
- pageControl.currentPage = self.currIndex
-
- if animate{
- scrollView.setContentOffset(CGPoint(x:width * CGFloat(self.currIndex + 1),y:0), animated: false)
- }
- }
-
- //给图⽚添加点击⼿势
- private func addTapGesWithImage(image:UIImageView) {
- let tap = UITapGestureRecognizer(target: self, action: #selector(tap(_:)))
- image.isUserInteractionEnabled = true //让控件可以触发交互事件
- image.contentMode = .scaleToFill
- // image.clipsToBounds = true //超出⽗控件的部分不显示
- image.addGestureRecognizer(tap)
- }
-
- //点击图⽚，调⽤block
- @objc func tap(_ ges:UITapGestureRecognizer) {
- clickBlock((ges.view?.tag)!)
- }
-
- func scrollViewDidScroll(_ scrollView: UIScrollView) {
-
- }
-
- func scrollViewWillBeginDragging(_ scrollView: UIScrollView) {
- startOffsetX = scrollView.contentOffset.x
- closeTimer()
- }
-
- func scrollViewDidEndDragging(_ scrollView: UIScrollView, willDecelerate
- decelerate: Bool) {
- }
-
- func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
- if(scrollView.contentOffset.x > startOffsetX){
- currIndex = (currIndex + 1) % images.count
- }else{
- currIndex = (currIndex - 1) % images.count
- }
- setCurrent(currIndex: currIndex)
- openTimer()
- }
-
- func openTimer(){
- if(isAuto){
- closeTimer()
- timer = Timer.scheduledTimer(timeInterval: interval, target: self, selector:
- #selector(startAutoScroll), userInfo: nil, repeats: true)
- }
- }
-
- func closeTimer(){
- if(timer != nil){
- timer?.invalidate()
- timer = nil
- }
- }
-
-
- @objc func startAutoScroll(){
- if(isDisplayInScreen()){
- setCurrent(currIndex: (currIndex + 1) % images.count,animate: true)
- }
- }
-
- func isDisplayInScreen() -> Bool{
- if(self.window == nil){
- return false
- }
- return true
- }
-
+struct CommonBannerModel {
+ var index = 0 //自定义索引
+ var id:Int? //ID
+ var name:String? //名称
+ var resource:String? //数据源：URL等
+ var mediaType:CommonBannerView.MediaType?
}
-enum ImageType{
- case Image //本地图⽚
- case URL //URL
+class CommonBannerView: UIView, UICollectionViewDelegate, UICollectionViewDataSource,UICollectionViewDelegateFlowLayout {
+
+ enum MediaType {
+ case videoUrl,imageUrl,imageLocal,videoLocal
+ }
+
+ private lazy var collectionView:UICollectionView = {
+ var layout = UICollectionViewFlowLayout()
+ layout.minimumLineSpacing = 0
+ layout.minimumInteritemSpacing = 0
+ layout.scrollDirection = .horizontal
+ layout.sectionInset = .zero
+ layout.headerReferenceSize = .zero
+ layout.footerReferenceSize = .zero
+ layout.itemSize = CGSize(width: self.width, height: self.height)
+ let collectionView = UICollectionView(frame:CGRect(x: 0, y: 0, width: self.width, height: self.height), collectionViewLayout: layout)
+ collectionView.delegate = self
+ collectionView.dataSource = self
+ collectionView.isPagingEnabled = true
+ collectionView.showsHorizontalScrollIndicator = false
+ collectionView.register(CommonBannerViewCell.self, forCellWithReuseIdentifier: "BannerView")
+ collectionView.decelerationRate = .normal
+ collectionView.contentInsetAdjustmentBehavior = .never
+ collectionView.backgroundColor = .white
+ collectionView.bounces = false
+ return collectionView
+ }()
+
+ private lazy var pageControl:UIPageControl = {
+ let control = UIPageControl()
+ control.currentPageIndicatorTintColor = .white
+ control.pageIndicatorTintColor = .gray.withAlphaComponent(0.6)
+ return control
+ }()
+
+ private var timer:Timer?
+
+ private var items = [CommonBannerModel]()
+ private var selectClouse:((CommonBannerModel)->Void)?
+ private var autoRoll:Bool = true
+ private var currentPage:Int = 0
+ private var timeInterval:Int = 5
+
+ override func awakeFromNib() {
+ super.awakeFromNib()
+ setUI()
+ }
+
+ public func setItems(items:[CommonBannerModel],autoRoll:Bool = true,selectClouse:((CommonBannerModel)->Void)? = nil){
+
+ self.items = items
+ if items.count > 1{
+ self.items.append(items.first!)
+ }
+ self.autoRoll = autoRoll
+ self.selectClouse = selectClouse
+ if items.count <= 1{self.autoRoll = false}
+
+ setUI()
+ collectionView.reloadData()
+
+ if self.autoRoll{
+ DispatchQueue.main.asyncAfter(deadline: .now()+5) {
+ self.startTimer()
+ }
+ }
+ }
+
+ private func setUI(){
+ addSubview(collectionView)
+ collectionView.snp.makeConstraints { make in
+ make.edges.equalToSuperview()
+ }
+
+ if items.count > 1{
+ pageControl.numberOfPages = items.count - 1
+
+ addSubview(pageControl)
+ pageControl.snp.makeConstraints { make in
+ make.centerX.equalToSuperview()
+ make.bottom.equalToSuperview().offset(-10)
+ make.height.equalTo(8)
+ }
+ }
+ }
+
+ private func startTimer(){
+ timer = Timer(timeInterval: TimeInterval(timeInterval), repeats: true, block: {[weak self] t in
+ guard let weakSelf = self else { return }
+ weakSelf.currentPage += 1
+
+ if weakSelf.currentPage >= weakSelf.pageControl.numberOfPages{
+ weakSelf.currentPage = 0
+ weakSelf.collectionView.setContentOffset(.zero, animated: false)
+ weakSelf.pageControl.currentPage = 0
+ }
+ weakSelf.collectionView.setContentOffset(CGPoint(x: weakSelf.currentPage * Int(weakSelf.width), y: 0), animated: true)
+ })
+ timer?.fire()
+ RunLoop.current.add(timer!, forMode: .common)
+ }
+
+ func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
+ return items.count
+ }
+
+ func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
+ let item = items[indexPath.row]
+ selectClouse?(item)
+ }
+
+ func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
+ return CGSize(width:collectionView.bounds.size.width,height:ceil(collectionView.bounds.size.height))
+ }
+
+ func scrollViewWillBeginDragging(_ scrollView: UIScrollView) {
+ print("--开始滑动")
+ timer?.fireDate = Date.distantFuture
+ }
+
+ func scrollViewDidEndDragging(_ scrollView: UIScrollView, willDecelerate decelerate: Bool) {
+ print("--结束滑动")
+ timer?.fireDate = Date.init(timeIntervalSinceNow: 3.0) //3秒后开启
+ }
+
+ func scrollViewDidEndScrollingAnimation(_ scrollView: UIScrollView) {
+ let page = scrollView.contentOffset.x / scrollView.width
+ if page.int > pageControl.numberOfPages{
+ pageControl.currentPage = 0
+ }else{
+ pageControl.currentPage = page.int
+ }
+ }
+
+ func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
+ let page = scrollView.contentOffset.x / scrollView.width
+ if page.int >= pageControl.numberOfPages{
+ pageControl.currentPage = 0
+ collectionView.setContentOffset(.zero, animated: false)
+ }else{
+ pageControl.currentPage = page.int
+ }
+ }
+
+ func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
+ let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "BannerView", for: indexPath) as! CommonBannerViewCell
+ let item = items[indexPath.row]
+
+ switch item.mediaType {
+ case .imageUrl:
+ if let i = item.resource{
+ cell.imgView.sd_setImage(with: URL(string: i))
+ }
+ case .imageLocal:
+ if let i = item.resource{
+ cell.imgView.image = UIImage(named: i)
+ }
+ default:break
+ }
+ return cell
+ }
+}
+
+class CommonBannerViewCell: UICollectionViewCell {
+
+ lazy var imgView:UIImageView = {
+ let img = UIImageView()
+ img.contentMode = .scaleAspectFit
+ return img
+ }()
+
+ override init(frame: CGRect) {
+ super.init(frame: frame)
+ contentView.addSubview(imgView)
+ imgView.snp.makeConstraints { make in
+ make.edges.equalToSuperview()
+ }
+ }
+
+ required init?(coder aDecoder: NSCoder) {
+ fatalError("init(coder:) has not been implemented")
+ }
}
--
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