我在调度主线程中更新MBProgressHUD时遇到问题

我正在尝试更新控制器中的MBProgressHUD。 从只显示静态消息,我想把进度条/进度百分比显示上传过程给用户。

YBWeakSelf;
[[YBStorageManage shareManage]getCOSInfo:^(int code) {
    dispatch_async(dispatch_get_main_queue(), ^{
        if (code == 0) {
            [weakSelf startUpload];
        }
    });
}];
[self networkState];

-(void)startUpload{
YBWeakSelf;
dispatch_group_t group = dispatch_group_create();
dispatch_queue_t queue = dispatch_get_global_queue(0, 0);
dispatch_semaphore_t semaphore = dispatch_semaphore_create(0);

NSString *filePath =_videoPath;
//传图片

dispatch_group_async(group, queue, ^{
    NSData *imageData = UIImagePNGRepresentation(_videoCoverImage);

    if (!imageData) {
        [MBProgressHUD hideHUD];
        [MBProgressHUD showError:YZMsg(@"请重新选择")];
        return;
    }
    UIImage *herfImg = [UIImage imageWithData:imageData];
    NSString *imageName = [PublicObj getNameBaseCurrentTime:@".png"];
    [[YBStorageManage shareManage]yb_storageImg:herfImg andName:imageName progress:^(CGFloat percent) {
        
    }complete:^(int code, NSString *key) {
        //图片成功
        [weakSelf uploadimagesuccess:key];

        dispatch_semaphore_signal(semaphore);
    }];
    dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);
});

dispatch_group_async(group, queue, ^{
    //传视频
    NSString *videoName = [PublicObj getNameBaseCurrentTime:@".mp4"];

    [[YBStorageManage shareManage]yb_storageVideoOrVoice:filePath andName:videoName progress:^(CGFloat percent) {
        
    } complete:^(int code, NSString *key) {
        //请求app业务服务器给标题
        [weakSelf uploadvideosuccess:key andTitle:mytitle];
        dispatch_semaphore_signal(semaphore);
    }];
    dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);
});


//上传水印视频

NSString *mkfilePath =_videoWmkPath;

dispatch_group_async(group, queue, ^{
    NSData *imageData = UIImagePNGRepresentation(_videoWmkCoverImage);

    if (!imageData) {
        [MBProgressHUD hideHUD];
        [MBProgressHUD showError:YZMsg(@"请重新选择")];
        return;
    }
    UIImage *herfImg = [UIImage imageWithData:imageData];
    NSString *imageName = [PublicObj getNameBaseCurrentTime:@"_mk .png"];
    [[YBStorageManage shareManage]yb_storageImg:herfImg andName:imageName progress:^(CGFloat percent) {
        
    }complete:^(int code, NSString *key) {
        //图片成功
        [weakSelf uploadWmkimagesuccess:key];

        dispatch_semaphore_signal(semaphore);
    }];
    dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);
});

dispatch_group_async(group, queue, ^{
    //传视频
    NSString *videoName = [PublicObj getNameBaseCurrentTime:@"_mk.mp4"];

    [[YBStorageManage shareManage]yb_storageVideoOrVoice:mkfilePath andName:videoName progress:^(CGFloat percent) {
        
    } complete:^(int code, NSString *key) {
        //请求app业务服务器给标题
        [weakSelf uploadvideoWmksuccess:key andTitle:mytitle];
        dispatch_semaphore_signal(semaphore);
    }];
    dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);
});
dispatch_group_notify(group, queue, ^{
    dispatch_async(dispatch_get_main_queue(), ^{
        [self requstAPPServceTitle:mytitle andVideo:_videokey andImage:_imagekey];
    });
    NSLog(@"任务完成执行");
}); }

如何更新MBProgressHUD以在那里设置进度条? 同时队列线程中有4个异步线程。 我想拿 progress:^(CGFloat percent) 并将其放入MBProgressHUD 由于这是一个更新视图进度,我不得不把它放在主线程中,对吧? 我试过好几次了,但总是坚持到最后。

我试着在每个 进度:^(CGFloat百分比) 但它总是发出紫色警告说 Thread running at QOS_CLASS_USER_INITIATED waiting on a thread without a QoS class specified. Investigate ways to avoid priority inversions