iOS 简易无限滚动的图片轮播器

@interface ViewController () <</span>SDCycleScrollViewDelegate>

@end

@implementation ViewController

- (void)viewDidLoad {

[super viewDidLoad];

self.view.backgroundColor =
[UIColor colorWithRed:0.98green:0.98 blue:0.98 alpha:0.99];

UIImageView *backgroundView = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"005.jpg"]];

backgroundView.frame = self.view.bounds;

[self.view addSubview:backgroundView];

// 情景一：采用本地图片实现

NSArray *images = @[[UIImage imageNamed:@"h1.jpg"],

[UIImage imageNamed:@"h2.jpg"],

[UIImage imageNamed:@"h3.jpg"],

[UIImage imageNamed:@"h4.jpg"]

];

// 情景二：采用网络图片实现

NSArray *imagesURLStrings = @[

@"https://ss2.baidu.com/-vo3dSag_xI4khGko9WTAnF6hhy/super/whfpf=425,260,50/sign=a4b3d7085dee3d6d2293d48b252b5910/0e2442a7d933c89524cd5cd4d51373f0830200ea.jpg",

@"https://ss0.baidu.com/-Po3dSag_xI4khGko9WTAnF6hhy/super/whfpf=425,260,50/sign=a41eb338dd33c895a62bcb3bb72e47c2/5fdf8db1cb134954a2192ccb524e9258d1094a1e.jpg",

@"http://c.hiphotos.baidu.com/image/w=400/sign=c2318ff84334970a4773112fa5c8d1c0/b7fd5266d0160924c1fae5ccd60735fae7cd340d.jpg"

];

// 情景三：图片配文字

NSArray *titles = @[@"感谢您的支持，如果下载的",

@"如果代码在使用过程中出现问题",

@"您可以发邮件到gsdios@126.com",

@"感谢您的支持"

];

CGFloat w = self.view.bounds.size.width;

// 本地加载 --- 创建不带标题的图片轮播器

SDCycleScrollView *cycleScrollView = [SDCycleScrollViewcycleScrollViewWithFrame:CGRectMake(0, 100,
w, 180)imagesGroup:images];

cycleScrollView.infiniteLoop = YES;

cycleScrollView.delegate = self;

cycleScrollView.pageControlStyle = SDCycleScrollViewPageContolStyleAnimated;

[self.view addSubview:cycleScrollView];

//         --- 轮播时间间隔，默认1.0秒，可自定义

//cycleScrollView.autoScrollTimeInterval = 4.0;

//网络加载 --- 创建带标题的图片轮播器

SDCycleScrollView *cycleScrollView2
= [SDCycleScrollViewcycleScrollViewWithFrame:CGRectMake(0, 320,
w, 180)imageURLStringsGroup:nil]; // 模拟网络延时情景

cycleScrollView2.pageControlAliment =SDCycleScrollViewPageContolAlimentRight;

cycleScrollView2.delegate = self;

cycleScrollView2.titlesGroup = titles;

cycleScrollView2.dotColor = [UIColor yellowColor]; // 自定义分页控件小圆标颜色

cycleScrollView2.placeholderImage = [UIImageimageNamed:@"placeholder"];

[self.view addSubview:cycleScrollView2];

//             --- 模拟加载延迟

dispatch_after(dispatch_time(DISPATCH_TIME_NOW,
(int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(),
^{

cycleScrollView2.imageURLStringsGroup = imagesURLStrings;

});

// 清除缓存

//    [cycleScrollView2 clearCache];

}

#pragma mark - SDCycleScrollViewDelegate

- (void)cycleScrollView:(SDCycleScrollView *)cycleScrollViewdidSelectItemAtIndex:(NSInteger)index

{

NSLog(@"---点击了第%ld张图片",
index);

}

@end