好库YBImageBrowser

1.原始方法

• 数据源

YBImageBrowseCellData
YBVideoBrowseCellData

YBImageBrowseCellData:
url:网络url
sourceObject:图片的对象 如果是nil 则没有还原动画和隐藏当前图片功能 是直上直下动画 也还行 😁
//本地建议用这个 Local image (配置本地图片推荐使用 YBImage)
data.imageBlock = ^__kindof UIImage * _Nullable{
                return [YBImage imageNamed:imageStr];
            };
phAsset:asset对象 

YBVideoBrowseCellData：
url：网络url 和本地 本地把path转换成url 

NSString *path = [[NSBundle mainBundle] pathForResource:@"" ofType:@""];
NSURL *url = [NSURL fileURLWithPath:path];
sourceObject:图片的对象 如果是nil 则没有还原动画和隐藏当前图片功能 是直上直下动画 也还行 😁
phAsset:asset对象

• 浏览器对象创建

browserDataArr 就是装载着YBImageBrowseCellData、YBVideoBrowseCellData的数组

YBImageBrowser *browser = [YBImageBrowser new];
 browser.dataSourceArray = browserDataArr;
 browser.currentIndex = index;
 [browser show];

2.代理方法

YBImageBrowser *browser = [YBImageBrowser new];
browser.dataSource = self;
browser.currentIndex = index;
[browser show];
 代理
YBImageBrowserDataSource, YBImageBrowserDelegate

- (NSUInteger)yb_numberOfCellForImageBrowserView:(YBImageBrowserView *)imageBrowserView {
    return self.dataArray.count;
}
- (id<YBImageBrowserCellDataProtocol>)yb_imageBrowserView:(YBImageBrowserView *)imageBrowserView dataForCellAtIndex:(NSUInteger)index {
    PHAsset *asset = (PHAsset *)self.dataArray[index];
    if (asset.mediaType == PHAssetMediaTypeVideo) {
        
        // Type 1 : 系统相册的视频 / Video of system album
        YBVideoBrowseCellData *data = [YBVideoBrowseCellData new];
        data.phAsset = asset;
        data.sourceObject = [self sourceObjAtIdx:index];

        return data;
    } else if (asset.mediaType == PHAssetMediaTypeImage) {
        
        // Type 2 : 系统相册的图片 / Image of system album
        YBImageBrowseCellData *data = [YBImageBrowseCellData new];
        data.phAsset = asset;
        data.sourceObject = [self sourceObjAtIdx:index];

        return data;
    }
    return nil;
}

3.普通例子

- (id)sourceObjAtIdx:(NSInteger)idx {
    MainImageCell *cell = (MainImageCell *)[self.collectionView cellForItemAtIndexPath:[NSIndexPath indexPathForRow:idx inSection:0]];
    return cell ? cell.mainImageView : nil;
}
- (void)showBrowserForMixedCaseWithIndex:(NSInteger)index {
    
    NSMutableArray *browserDataArr = [NSMutableArray array];
    [self.dataArray enumerateObjectsUsingBlock:^(NSString *_Nonnull imageStr, NSUInteger idx, BOOL * _Nonnull stop) {

        // 此处只是为了判断测试用例的数据源是否为视频，并不是仅支持 MP4。/ This is just to determine whether the data source of the test case is video, not just MP4.
        if ([imageStr hasSuffix:@".MP4"]) {
            if ([imageStr hasPrefix:@"http"]) {
                
                // Type 1 : 网络视频 / Network video
                YBVideoBrowseCellData *data = [YBVideoBrowseCellData new];
                data.url = [NSURL URLWithString:imageStr];
                data.sourceObject = [self sourceObjAtIdx:idx];
                [browserDataArr addObject:data];
                
            } else {
                
                // Type 2 : 本地视频 / Local video
                NSString *path = [[NSBundle mainBundle] pathForResource:imageStr.stringByDeletingPathExtension ofType:imageStr.pathExtension];
                NSURL *url = [NSURL fileURLWithPath:path];
                YBVideoBrowseCellData *data = [YBVideoBrowseCellData new];
                data.url = url;
                data.sourceObject = [self sourceObjAtIdx:idx];
                [browserDataArr addObject:data];
                
            }
        } else if ([imageStr hasPrefix:@"http"]) {
            
            // Type 3 : 网络图片 / Network image
            YBImageBrowseCellData *data = [YBImageBrowseCellData new];
            data.url = [NSURL URLWithString:imageStr];
            data.sourceObject = [self sourceObjAtIdx:idx];
            [browserDataArr addObject:data];
            
        } else {
            
            // Type 4 : 本地图片 / Local image (配置本地图片推荐使用 YBImage)
            YBImageBrowseCellData *data = [YBImageBrowseCellData new];
            data.imageBlock = ^__kindof UIImage * _Nullable{
                return [YBImage imageNamed:imageStr];
            };
            data.sourceObject = [self sourceObjAtIdx:idx];
            [browserDataArr addObject:data];
            
        }
    }];
    
    //Type 5 : 自定义 / Custom
    CustomCellData *data = [CustomCellData new];
    data.text = @"Custom Cell";
    [browserDataArr addObject:data];
    
    
    YBImageBrowser *browser = [YBImageBrowser new];
    browser.dataSourceArray = browserDataArr;
    browser.currentIndex = index;
    [browser show];
}

4.注意

1.currentIndex 一定要在dataSourceArray之后赋值 不然提示越界

5.self.yy_isDecodedForDisplay = YES self.isDecodedForDisplay = YES YYModel会报错

6.加入一个扩展就是一个回调@property(nonatomic,copy)void (^hideBlock)(void);

有时候banner跳转 回导致返回的图片跑到屏幕外，配合viewDidAppear进行暂停轮滑

7 iOS 14黑屏问题 是YYAnimatedImageView有问题

iOS14+Xcode12
搜索修改YYKit中的代码

- (void)displayLayer:(CALayer *)layer {
    if (_curFrame) {
        layer.contents = (__bridge id)_curFrame.CGImage;
    } else {
        //如果没有动画帧，请调用super实现。iOS 14+ UIImageView使用此委托方法进行渲染。
        if ([UIImageView instancesRespondToSelector:@selector(displayLayer:)]) {
            [super displayLayer:layer];
        }
    }
}