// 1.make every control as an object, put it into an array
KNPhotoItems *items = [[KNPhotoItems alloc] init];
items.url = @"http://xxxxxxxx/xxx.png";
items.sourceView = imageView;
// if current url is video type
// items.isVideo = true;
// if current image is locate gif
// itemM.isLocateGif = true;
[self.itemsArr addObject:items];

KNPhotoBrowser *photoBrowser = [[KNPhotoBrowser alloc] init];
photoBrowser.itemsArr = [self.itemsArr copy];
photoBrowser.currentIndex = tap.view.tag;

/// photoBrowser will present
[photoBrowser present];

/// photoBrowser will dismiss
/// [photoBrowser dismiss];

/// photoBrowser will dismiss with currentIndex
- (void)photoBrowser:(KNPhotoBrowser *)photoBrowser willDismissWithIndex:(NSInteger)index;

/// photoBrowser right top button did click with currentIndex (you can custom you right button, but if you custom your right button, that you need implementate your target action)
- (void)photoBrowser:(KNPhotoBrowser *)photoBrowser rightBtnOperationActionWithIndex:(NSInteger)index;

/// if it is network image,  set `url` , do not set `sourceImage`
@property (nonatomic,copy  ) NSString *url;

/// if it is locate image, set `sourceImage`, do not set `url`
@property (nonatomic,strong) UIImage *sourceImage;

/// sourceView is current control to show image or video.
/// 1. if the sourceView is kind of `UIImageView` or `UIButton` , just only only only set the `sourceView`.
/// 2. if the sourceView is the custom view , set the `sourceView`, but do not forget set `sourceLinkArr` && `sourceLinkProperyName`.
@property (nonatomic,strong) UIView *sourceView;

@property (nonatomic,strong) NSArray<NSString *> *sourceLinkArr;

/**
 eg:
    if the lastObject is kind of  UIImageView ,  the `sourceLinkProperyName` is `image`
    if the lastObject is kind of  UIButton ,  the `sourceLinkProperyName` is `currentBackgroundImage` or `currentImage`
 */

/// the property'name of the  sourceLinkArr lastObject
@property (nonatomic,copy  ) NSString *sourceLinkProperyName;

pod 'KNPhotoBrowser'

// terminal : cd ~(current path)
pod install or pod update