iOS开发之 用第三方类库实现ScrollView

转自：http://www.cnblogs.com/qianLL/p/5369127.html

 

在github上面有很多的第三方类库，大大节约了大家的开发时间

下载地址：https://github.com/gsdios/SDCycleScrollView

现已支持cocoapods导入：pod 'SDCycleScrollView','~> 1.61'

效果

具体实现代码

#import "ViewController.h"
#import "SDCycleScrollView.h"

@interface ViewController () <SDCycleScrollViewDelegate>

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

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

    UIScrollView *demoContainerView = [[UIScrollView alloc] initWithFrame:self.view.frame];
    demoContainerView.contentSize = CGSizeMake(self.view.frame.size.width, 1200);
    [self.view addSubview:demoContainerView];

    self.title = @"轮播Demo";

    // 情景一：采用本地图片实现
    NSArray *imageNames = @[@"h1.jpg",
                            @"h2.jpg",
                            @"h3.jpg",
                            @"h4.jpg",
                            @"h7" // 本地图片请填写全名
                            ];

    // 情景二：采用网络图片实现
    NSArray *imagesURLStrings = @[
                           @"https://ss2.baidu.com/-vo3dSag_xI4khGko9WTAnF6hhy/super/whfpf%3D425%2C260%2C50/sign=a4b3d7085dee3d6d2293d48b252b5910/0e2442a7d933c89524cd5cd4d51373f0830200ea.jpg",
                           @"https://ss0.baidu.com/-Po3dSag_xI4khGko9WTAnF6hhy/super/whfpf%3D425%2C260%2C50/sign=a41eb338dd33c895a62bcb3bb72e47c2/5fdf8db1cb134954a2192ccb524e9258d1094a1e.jpg",
                           @"http://c.hiphotos.baidu.com/image/w%3D400/sign=c2318ff84334970a4773112fa5c8d1c0/b7fd5266d0160924c1fae5ccd60735fae7cd340d.jpg"
                           ];

    // 情景三：图片配文字
    NSArray *titles = @[@"新建交流QQ群：185534916 ",
                        @"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"
                        ];

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

// >>>>>>>>>>>>>>>>>>>>>>>>> demo轮播图1 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

    // 本地加载 --- 创建不带标题的图片轮播器
    SDCycleScrollView *cycleScrollView = [SDCycleScrollView cycleScrollViewWithFrame:CGRectMake(0, 64, w, 180) shouldInfiniteLoop:YES imageNamesGroup:imageNames];
    cycleScrollView.delegate = self;
    cycleScrollView.pageControlStyle = SDCycleScrollViewPageContolStyleAnimated;
    [demoContainerView addSubview:cycleScrollView];
    //         --- 轮播时间间隔，默认1.0秒，可自定义
    //cycleScrollView.autoScrollTimeInterval = 4.0;

// >>>>>>>>>>>>>>>>>>>>>>>>> demo轮播图2 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

    // 网络加载 --- 创建带标题的图片轮播器
    SDCycleScrollView *cycleScrollView2 = [SDCycleScrollView cycleScrollViewWithFrame:CGRectMake(0, 280, w, 180) delegate:self placeholderImage:[UIImage imageNamed:@"placeholder"]];

    cycleScrollView2.pageControlAliment = SDCycleScrollViewPageContolAlimentRight;
    cycleScrollView2.titlesGroup = titles;
    cycleScrollView2.currentPageDotColor = [UIColor whiteColor]; // 自定义分页控件小圆标颜色
    [demoContainerView addSubview:cycleScrollView2];

    //         --- 模拟加载延迟
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.3 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        cycleScrollView2.imageURLStringsGroup = imagesURLStrings;
    });

    /*
     block监听点击方式

     cycleScrollView2.clickItemOperationBlock = ^(NSInteger index) {
        NSLog(@">>>>>  %ld", (long)index);
     };

     */

// >>>>>>>>>>>>>>>>>>>>>>>>> demo轮播图3 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

    // 网络加载 --- 创建自定义图片的pageControlDot的图片轮播器
    SDCycleScrollView *cycleScrollView3 = [SDCycleScrollView cycleScrollViewWithFrame:CGRectMake(0, 500, w, 180) delegate:self placeholderImage:[UIImage imageNamed:@"placeholder"]];
    cycleScrollView3.currentPageDotImage = [UIImage imageNamed:@"pageControlCurrentDot"];
    cycleScrollView3.pageDotImage = [UIImage imageNamed:@"pageControlDot"];
    cycleScrollView3.imageURLStringsGroup = imagesURLStrings;

    [demoContainerView addSubview:cycleScrollView3];

}

#pragma mark - SDCycleScrollViewDelegate

- (void)cycleScrollView:(SDCycleScrollView *)cycleScrollView didSelectItemAtIndex:(NSInteger)index
{
    NSLog(@"---点击了第%ld张图片", (long)index);

    [self.navigationController pushViewController:[NSClassFromString(@"DemoVCWithXib") new] animated:YES];
}

/*

// 滚动到第几张图回调
- (void)cycleScrollView:(SDCycleScrollView *)cycleScrollView didScrollToIndex:(NSInteger)index
{
    NSLog(@">>>>>> 滚动到第%ld张图", (long)index);
}

 */

@end