iOS自定义视图之【大图浏览器】（应用场景：查看风险商户证明材料时图片支持滑动切换）

- (void)showImageBrowser:(QCTCollectionModel*)m
{
    

        [self setupImageBrowserModels];

    
    KNImageBrowserViewController * imageBrowserViewController = [[KNImageBrowserViewController alloc] initWithImageBrowserModels:self.viewModel.ImageBrowserModels selectPage:m.selectPage];
    
//    KNImageBrowserViewController * imageBrowserViewController = [[KNImageBrowserViewController alloc] initWithUrlStr:imageUrls originImageViews:imageView4smalls selectPage:m.selectPage];
    
        
    
    [self presentViewController:imageBrowserViewController animated:YES completion:nil];
}

- (void)showImageBrowser {
    KNImageBrowserViewController * imageBrowserViewController = [[KNImageBrowserViewController alloc] initWithUrlStr:self.imageUrls originImageViews:self.originImageViews selectPage:self.selectPage];
    [self.controller presentViewController:imageBrowserViewController animated:YES completion:nil];
}

@interface KNImageBrowserModel : NSObject
/**
大图的图片地址
*/
@property(nonatomic,copy)NSString * urlStr;
/**
小图原始的imageView，用于加载大图时的展位图片
*/
@property(nonatomic,weak)UIImageView * smallImageView;

        KNImageBrowserModel * imageBrowserModel = [[KNImageBrowserModel alloc] init];
        imageBrowserModel.smallImageView = imageView;
        
        
        
        
        imageBrowserModel.urlStr = urlStr;

- (void)setupImageBrowserModels{
    
    
//    NSArray *imageView4smalls = [self.viewModel.collectionDataArray valueForKeyPath:@"@distinctUnionOfObjects.imageView4small"];//arDistinct是一些含有originalAddress属性的对象集合

    //
//    NSArray *imageUrls = [self.viewModel.collectionDataArray valueForKeyPath:@"@distinctUnionOfObjects.originalAddress"];//arDistinct是一些含有originalAddress属性的对象集合

    self.viewModel.ImageBrowserModels  =  [NSMutableArray array];
    
    
    for ( QCTCollectionModel  *obj in  self.viewModel.collectionDataArray) {
        
        KNImageBrowserModel * imageBrowserModel = [[KNImageBrowserModel alloc] init];
        imageBrowserModel.smallImageView = obj.imageView4small;
        
        imageBrowserModel.urlStr = obj.originalAddress;

        [self.viewModel.ImageBrowserModels addObject:imageBrowserModel];

    }
    
    

}