#import <UIKit/UIKit.h>@interface WeiboImageView : UIImageView@property (nonatomic, assign) CGRect originRect;- (instancetype)initWithFrame:(CGRect)frame;@end

#import "WeiboImageView.h"@implementation WeiboImageView@synthesize originRect;- (instancetype)initWithFrame:(CGRect)frame{    self = [super initWithFrame:frame];    if (self) {        originRect = frame;        self.clipsToBounds = YES;        self.userInteractionEnabled  = YES;        self.contentMode = UIViewContentModeScaleAspectFill;            }    return self;}- (void)dealloc{    }@end

#import <UIKit/UIKit.h>@interface WeiboImageBrowser : UIView<UIScrollViewDelegate>//@property (nonatomic, copy) NSArray *imageViewArray;@property (nonatomic, assign) int currentSelectedIamge;@property (nonatomic, strong) UIScrollView *backgroundScrollView;@property (nonatomic, strong) UILabel *pageIndexLabel;@property (nonatomic,strong) NSMutableArray *originRects;@property (nonatomic, copy) NSArray *bigImageArray;- (instancetype)initWithFrame : (CGRect)rect;- (void)showWeiboImages;@end

#import "WeiboImageBrowser.h"#import "WeiboDefine.h"#import "WeiboImageView.h"#import "SDImageCache.h"      //缓存相关#import "SDWebImageCompat.h"  //组件相关#import "SDWebImageDecoder.h" //解码相关//图片下载以及下载管理器#import "SDWebImageDownloader.h"#import "SDWebImageManager.h"#import "SDWebImageDownloaderOperation.h"@implementation WeiboImageBrowser//@synthesize imageViewArray;@synthesize currentSelectedIamge;@synthesize bigImageArray;- (instancetype)initWithFrame : (CGRect)rect{    self = [super initWithFrame:rect];    if (self) {        [self addSubview:self.pageIndexLabel];        self.backgroundColor = [UIColor blackColor];        [self initBackgroundScrollView];    }    return self;}- (UIScrollView *)backgroundScrollView{    if (!_backgroundScrollView) {        _backgroundScrollView = [[UIScrollView alloc]initWithFrame:CGRectMake(0, 0, UISCREEN_WIDTH, UISCREEN_HEIGHT)];        _backgroundScrollView.pagingEnabled = YES;    }    return _backgroundScrollView;}- (NSMutableArray *)originRects{    if (!_originRects) {        _originRects = [NSMutableArray array];    }    return _originRects;}- (UILabel *)pageIndexLabel{    if (!_pageIndexLabel) {        _pageIndexLabel = [[UILabel alloc]initWithFrame:CGRectMake((UISCREEN_WIDTH - 100) / 2, UISCREEN_HEIGHT - 50, 100, 25)];        _pageIndexLabel.textAlignment = NSTextAlignmentCenter;        _pageIndexLabel.textColor = [UIColor whiteColor];        _pageIndexLabel.font = [UIFont fontWithName:@"Arial" size:20];    }    return _pageIndexLabel;}- (void)initBackgroundScrollView{    self.backgroundScrollView.contentSize = CGSizeMake([self.bigImageArray count] * UISCREEN_WIDTH, UISCREEN_HEIGHT);    self.backgroundScrollView.delegate = self;    self.backgroundScrollView.showsHorizontalScrollIndicator = NO;    [self addSubview:self.backgroundScrollView];}- (void)initImageScrollViews{    self.backgroundScrollView.contentSize = CGSizeMake([self.bigImageArray count] * UISCREEN_WIDTH, 0);    self.backgroundScrollView.contentOffset = CGPointMake(currentSelectedIamge * UISCREEN_WIDTH, 0);    for (int i = 0; i < [self.bigImageArray count]; i++) {        [[SDWebImageManager sharedManager] downloadImageWithURL:[NSURL URLWithString:[self.bigImageArray objectAtIndex:i] ] options:0                                                       progress:^(NSInteger receivedSize, NSInteger expectedSize)         {             NSLog(@"progress!!!");         }                                                               completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL)         {             UIScrollView *iamgeScrollView = [[UIScrollView alloc]initWithFrame:CGRectMake(UISCREEN_WIDTH * i, 0, UISCREEN_WIDTH, UISCREEN_HEIGHT)];             WeiboImageView *weibImageView = [[WeiboImageView alloc]init];             weibImageView.image = image;             CGFloat ratio = (double)weibImageView.image.size.height / (double)weibImageView.image.size.width;             weibImageView.bounds = CGRectMake(0, 0, UISCREEN_WIDTH, UISCREEN_WIDTH * ratio);             weibImageView.center = CGPointMake(UISCREEN_WIDTH / 2, UISCREEN_HEIGHT / 2);             UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(imageTap:)];             [weibImageView addGestureRecognizer:tap];             [iamgeScrollView addSubview:weibImageView];             [self.backgroundScrollView addSubview:iamgeScrollView];         }];    }}- (void)showWeiboImages{    [self initImageScrollViews];    [[UIApplication sharedApplication].keyWindow addSubview:self];}-(void)imageTap:(UITapGestureRecognizer *)tap{    [self removeFromSuperview];}- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{    int nCurrentPage = scrollView.contentOffset.x / UISCREEN_WIDTH;    currentSelectedIamge = nCurrentPage;    NSString *stringPage = [NSString stringWithFormat:@"%d/%d",nCurrentPage + 1, [self.bigImageArray count]];    self.pageIndexLabel.text = stringPage;    [self bringSubviewToFront:self.pageIndexLabel];}@end

#import <UIKit/UIKit.h>@interface ViewController : UIViewController@property (nonatomic, strong)NSArray *imageArray;@end

#import "ViewController.h"#import "SDImageCache.h"      //缓存相关#import "SDWebImageCompat.h"  //组件相关#import "SDWebImageDecoder.h" //解码相关//图片下载以及下载管理器#import "SDWebImageDownloader.h"#import "SDWebImageManager.h"#import "SDWebImageDownloaderOperation.h"#import "WeiboDefine.h"#import "WeiboImageView.h"#import "WeiboImageBrowser.h"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];    float imageWidth = (UISCREEN_WIDTH - 50) / 3.0;    _imageArray = [NSArray arrayWithObjects:                           @"http://g.hiphotos.baidu.com/image/pic/item/c2cec3fdfc03924578c6cfe18394a4c27c1e25e8.jpg",                           @"http://image.tianjimedia.com/uploadImages/2015/072/23/4X4L0E9BNEZ6.jpg",                           @"http://img15.3lian.com/2015/c1/83/d/31.jpg",                           @"http://img15.3lian.com/2015/c1/83/d/31.jpg",                           @"http://img15.3lian.com/2015/c1/83/d/31.jpg",                           @"http://img15.3lian.com/2015/c1/83/d/31.jpg",                           @"http://img15.3lian.com/2015/c1/83/d/31.jpg",                           @"http://img15.3lian.com/2015/c1/83/d/31.jpg",                           @"http://img15.3lian.com/2015/c1/83/d/31.jpg",nil  ] ;    int n = _imageArray.count;        for (int i = 0; i < n; i++) {        [[SDWebImageManager sharedManager] downloadImageWithURL:[NSURL URLWithString:[_imageArray objectAtIndex:i]                                                                                      ] options:0                                                       progress:^(NSInteger receivedSize, NSInteger expectedSize)         {             NSLog(@"progress!!!");         }                                                               completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL)         {             CGRect rect = CGRectMake(15 + (i % 3) * (imageWidth + 10) , 20 + 90 + (i / 3) * (imageWidth + 10), imageWidth, imageWidth);             UIImageView *imageView = [[UIImageView alloc]initWithFrame:rect];             imageView.image = image;             imageView.frame = rect;             imageView.clipsToBounds = YES;             imageView.contentMode = UIViewContentModeScaleAspectFill;             imageView.tag = i;             imageView.userInteractionEnabled = YES;             UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(imageTap:)];             [imageView addGestureRecognizer:tap];             [self.view addSubview:imageView];                      }];    }    // Do any additional setup after loading the view, typically from a nib.}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];        // Dispose of any resources that can be recreated.}-(void)imageTap:(UITapGestureRecognizer *)tap{    WeiboImageBrowser *imageBrowser = [[WeiboImageBrowser alloc] initWithFrame:CGRectMake(0, 0, UISCREEN_WIDTH, UISCREEN_HEIGHT)];    imageBrowser.currentSelectedIamge = tap.view.tag;    imageBrowser.bigImageArray = /*weiboInformation.pic_urls*/_imageArray;    [imageBrowser showWeiboImages];}@end