ScrollView广告轮播

<span style="background-color: rgb(102, 255, 255);">////  AdCollectionViewCell.m//  LJEAdScrollview////  Created by xiaoyao on 15/4/2.//  Copyright (c) 2015年 lijien. All rights reserved.//////  AdCollectionViewCell.h//  LJEAdScrollview////  Created by xiaoyao on 15/4/2.//  Copyright (c) 2015年 lijien. All rights reserved.///** *  @brief 自定义collectionViewCell,布局每一个广告的现实内容 *  @author lijien */#import <UIKit/UIKit.h>@interface AdCollectionViewCell : UICollectionViewCell// 广告图@property (nonatomic, strong)  UIImageView *adImageView;// 图片描述文字@property (nonatomic, copy)    NSString    *titleString;@end#import "AdCollectionViewCell.h"#import "UIView+UIViewExtension.h"@implementation AdCollectionViewCell {  UILabel  *_titleLabel;}- (instancetype)initWithFrame:(CGRect)frame {  self = [super initWithFrame:frame];  if (self) {    [self layoutSubviews];  }    return self;}- (void)setTitleString:(NSString *)titleString {  _titleString = [titleString copy];  _titleLabel.text = [NSString stringWithFormat:@"   %@",titleString];}- (void)layoutSubviews {  self.adImageView = [[UIImageView alloc] initWithFrame:self.bounds];    CGFloat titleW = self.ad_width;  CGFloat titleH = self.ad_height;  CGFloat titleX = 0;  CGFloat titleY = self.ad_height - titleH;    _titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(titleX, titleY, titleW, titleH)];  _titleLabel.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.5];  _titleLabel.font = [UIFont systemFontOfSize:13];  _titleLabel.textColor = [UIColor whiteColor];  _titleLabel.hidden = !_titleLabel.text;    [self addSubview:_adImageView];  [self addSubview:_titleLabel];}@end////  UIView+UIViewExtension.h//  LJEAdScrollview////  Created by xiaoyao on 15/4/2.//  Copyright (c) 2015年 lijien. All rights reserved.//#import <UIKit/UIKit.h>/** *  @brief 每个广告图frame的坐标和宽高 */@interface UIView (UIViewExtension)@property (nonatomic, assign)  CGFloat ad_X;@property (nonatomic, assign)  CGFloat ad_Y;@property (nonatomic, assign)  CGFloat ad_width;@property (nonatomic, assign)  CGFloat ad_height;@end////  UIView+UIViewExtension.m//  LJEAdScrollview////  Created by xiaoyao on 15/4/2.//  Copyright (c) 2015年 lijien. All rights reserved.//#import "UIView+UIViewExtension.h"#import "AdScrollViewFrame.h"@implementation UIView (UIViewExtension)- (CGFloat)ad_X {  return originX;}- (CGFloat)ad_Y {  return originY;}- (CGFloat)ad_width {  return adWidth;}- (CGFloat)ad_height {  return adHeight;}- (void)setAd_X:(CGFloat)ad_X {  CGRect temp = self.frame;  temp.origin.x = ad_X;  self.frame = temp;}- (void)setAd_Y:(CGFloat)ad_Y {  CGRect temp = self.frame;  temp.origin.y = ad_Y;  self.frame = temp;}- (void)setAd_width:(CGFloat)ad_width {  CGRect temp = self.frame;  temp.size.width = ad_width;  self.frame = temp;}- (void)setAd_height:(CGFloat)ad_height {  CGRect temp = self.frame;  temp.size.height = ad_height;  self.frame = temp;}@end////  AdCycleScrollView.h//  LJEAdScrollview////  Created by xiaoyao on 15/4/2.//  Copyright (c) 2015年 lijien. All rights reserved.//#import <UIKit/UIKit.h>@class AdCycleScrollView;@protocol AdCycleScrollViewDelegate <NSObject>- (void)cycleScrollView:(AdCycleScrollView *)adScrollView didSelectAtIndex:(NSInteger)index;@end/** *  @brief 每一个广告视图的布局 */@interface AdCycleScrollView : UIView// 图片数据源  @property (nonatomic, strong) NSArray *imageArray;// 标题数据源@property (nonatomic, strong) NSArray *titleArray;// 时间间隔@property (nonatomic, assign) CGFloat  autoScrollItemTimeInterval;@property (nonatomic, assign) NSInteger currentPageIndex;@property (nonatomic, weak)   id<AdCycleScrollViewDelegate>delegate;/** *  @brief 外部初始化显示广告图的每个collectionView */+ (instancetype)cycleScrollViewWithFrame:(CGRect)frame imagesGroupArray:(NSArray *)imagesArray                              titleArray:(NSArray *)titleArray;@end////  AdCycleScrollView.m//  LJEAdScrollview////  Created by xiaoyao on 15/4/2.//  Copyright (c) 2015年 lijien. All rights reserved.//#import "AdCycleScrollView.h"#import "AdCollectionViewCell.h"#import "UIView+UIViewExtension.h"NSString * const cycleKey = @"cycleKey";@interface AdCycleScrollView () <UICollectionViewDataSource, UICollectionViewDelegate> {  UICollectionView *_mainCollectionView;  UICollectionViewFlowLayout *_flowLayout;  NSTimer *_timer;  NSInteger _totalItemCount;  UIPageControl *_pageControl;}@end@implementation AdCycleScrollView- (instancetype)initWithFrame:(CGRect)frame {  self = [super initWithFrame:frame];    if (self) {    [self layoutMainView];  }    return self;}+ (instancetype)cycleScrollViewWithFrame:(CGRect)frame imagesGroupArray:(NSArray *)imagesArray titleArray:(NSArray *)titleArray {  AdCycleScrollView *scroll = [[AdCycleScrollView alloc] initWithFrame:frame];  scroll.imageArray = imagesArray;  scroll.titleArray = titleArray;  return scroll;}/** *  @beief 设置图片collectionView,以及进行线性布局 */- (void)layoutMainView {    // collectionView的布局  _flowLayout = [[UICollectionViewFlowLayout alloc] init];  // 设定全局的cell的frame.size  _flowLayout.itemSize = self.frame.size;  // 设定全局的行间距  _flowLayout.minimumLineSpacing = 0;  _flowLayout.scrollDirection = UICollectionViewScrollDirectionHorizontal;    _mainCollectionView = [[UICollectionView alloc] initWithFrame:self.frame collectionViewLayout:_flowLayout];  _mainCollectionView.backgroundColor = [UIColor lightGrayColor];  _mainCollectionView.pagingEnabled = YES;  _mainCollectionView.showsHorizontalScrollIndicator = NO;  _mainCollectionView.showsVerticalScrollIndicator = NO;    // 取消缩放  _mainCollectionView.bouncesZoom = NO;  // 取消反弹  _mainCollectionView.bounces = NO;  _mainCollectionView.delegate = self;  _mainCollectionView.dataSource = self;  [_mainCollectionView registerClass:[AdCollectionViewCell class] forCellWithReuseIdentifier:cycleKey];  [self addSubview:_mainCollectionView];    _autoScrollItemTimeInterval = 1.0;//  _pageControl = [UIPageControl alloc] initWithFrame:CGRectMake(<#CGFloat x#>, <#CGFloat y#>, <#CGFloat width#>, <#CGFloat height#>)}- (void)setImagesGroup:(NSArray *)imagesGroup{  _imageArray = imagesGroup;  [self setupTimer];}/** *  @brief 设置定时器 */- (void)setupTimer {  _timer = [NSTimer scheduledTimerWithTimeInterval:self.autoScrollItemTimeInterval                                            target:self                                          selector:@selector(automatiocScroll:)                                          userInfo:nil                                           repeats:YES];    // 使用scheduledTimerWithTimeInterval添加到Run Loop中的Timer就不会执行,所以用NSRunLoopCommonModes  [[NSRunLoop mainRunLoop] addTimer:_timer forMode:NSRunLoopCommonModes];}- (void)setAutoScrollItemTimeInterval:(CGFloat)autoScrollItemTimeInterval {  _autoScrollItemTimeInterval = autoScrollItemTimeInterval;  [_timer invalidate];  _timer = nil;  [self setupTimer];}- (void)automatiocScroll:(NSTimer *)timer {  self.currentPageIndex = _mainCollectionView.contentOffset.x / _flowLayout.itemSize.width;  NSInteger targetPageIndex = self.currentPageIndex + 1;    if (targetPageIndex == self.imageArray.count) {     targetPageIndex = self.imageArray.count * 0.5;    [_mainCollectionView scrollToItemAtIndexPath:[NSIndexPath indexPathForItem:targetPageIndex inSection:0]                                atScrollPosition:UICollectionViewScrollPositionNone                                        animated:YES];  }  [_mainCollectionView scrollToItemAtIndexPath:[NSIndexPath indexPathForItem:targetPageIndex inSection:0]                              atScrollPosition:UICollectionViewScrollPositionNone                                      animated:YES];}#pragma mark - UICollectionViewDataSource//- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView {//  return self.imageArray.count;//}- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {  return self.imageArray.count;}- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {  AdCollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:cycleKey forIndexPath:indexPath];  if (!cell) {    cell = [[AdCollectionViewCell alloc] init];  }    NSUInteger itemIndex = indexPath.item % self.imageArray.count;  if (self.imageArray.count) {    cell.adImageView.image = self.imageArray[itemIndex];  }  if (self.titleArray.count) {    cell.titleString = _titleArray[itemIndex];  }    return cell;}- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {  if ([self.delegate respondsToSelector:@selector(cycleScrollView:didSelectAtIndex:)]) {    [self.delegate cycleScrollView:self didSelectAtIndex:indexPath.item % self.imageArray.count];  }}#pragma mark - UIScrollviewDelegate- (void)scrollViewDidScroll:(UIScrollView *)scrollView {  NSUInteger index = (scrollView.contentOffset.x + _mainCollectionView.ad_width * 0.5) / _mainCollectionView.ad_width;  _pageControl.currentPage = index % self.imageArray.count;}- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView {  [_timer invalidate];  _timer = nil;}- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate {  [self setupTimer];}@end////  AdScrollViewController.m//  LJEAdScrollview////  Created by xiaoyao on 15/4/3.//  Copyright (c) 2015年 lijien. All rights reserved.//#import "AdScrollViewController.h"#import "UIView+UIViewExtension.h"@interface AdScrollViewController () <AdCycleScrollViewDelegate>@end@implementation AdScrollViewController- (void)viewDidLoad {    [super viewDidLoad];    NSArray *images = @[[UIImage imageNamed:@"h1.jpg"],                      [UIImage imageNamed:@"h2.jpg"],                      [UIImage imageNamed:@"h3.jpg"],                      [UIImage imageNamed:@"h4.jpg"]                      ];    NSArray *titles = @[@"我的梦想是做一名伟大的产品设计师",                      @"我的目标是张小龙一样开世界微信产品发布会",                      @"我可以有丰富多彩的生活除了编程之外",                      @"谢谢各位，尽情吐槽"                      ];      AdCycleScrollView *scroll = [AdCycleScrollView cycleScrollViewWithFrame:CGRectMake(0, 60, self.view.frame.size.width, 180)                                                         imagesGroupArray:images titleArray:titles];  scroll.titleArray = titles;  scroll.delegate = self;  [self.view addSubview:scroll];}#pragma mark - SDCycleScrollViewDelegate- (void)cycleScrollView:(AdCycleScrollView *)adScrollView didSelectAtIndex:(NSInteger)index{  NSLog(@"---点击了第%ld张图片", index);}@end</span>