封装的视频上传不走视频选择的回调

 //增加视频 
- (void)clicktoAddVideo{
    
    ZHVideo *zhvideo = [[ZHVideo alloc]init];
    [zhvideo initvideowithViewController:self];
    [zhvideo setUpvideoblock:^(NSString *VideoUrlStr) {
        self.videoUrlString = VideoUrlStr;
    }];
   
}

因为走完这个方法之后 ZHVideo 就被系统释放了 UIImagePickerControllerDelegate 也就为nill
修改 后 让它不释放就行了

@property (nonatomic, strong) ZHVideo *zhVideo;

//增加视频
- (void)clicktoAddVideo{
    
    ZHVideo *zhvideo = [[ZHVideo alloc]init];
    [zhvideo initvideowithViewController:self];
    [zhvideo setUpvideoblock:^(NSString *VideoUrlStr) {
        self.videoUrlString = VideoUrlStr;
    }];
    _zhVideo = zhvideo;
}