ASIHTTPRequest获取精准进度百分比 使用Block回调

在ASIHttp请求类中的.h文件中声明BLOCK

typedef void(^getProgress)(float ProgressNum); 

在请求的方法中添加此代码段：

    __block float newProgress;

    __block float totalSize = 0;

    __block float theSize = 0;

    

    //这个方法会调用两次

    [request setUploadSizeIncrementedBlock:^(long long size) {

        totalSize = totalSize + size;

//        NSLog(@"totalSize ===== %f",totalSize);

        

    }];

    

    //在队列上传的时候需要加上total这个修正值

    [request setBytesSentBlock:^(unsigned long long size, unsigned long long total) {

        //the total is 修正量

        theSize += size;

//        NSLog(@"size ===== %lld", size);

//        NSLog(@"pro ===== %f",theSize/totalSize);

        newProgress = theSize/totalSize;

            

         if (proBlock != nil) {

                proBlock(newProgress);

           }

        
    }];

例子：

// 上传视频接 (请求类中，在这里使用回调的Block）

+ (ASIHTTPRequest *)requestWithMovieURL:(NSString *)urlstring

                                 params:(NSDictionary *)params

                                    url:(NSURL *)fileUrl

                               dataType:(NSString *)type

                                  block:(CompletionLoadHandle)block

                               proBlock:(getProgress)proBlock

{

    if (params == nil) {

        params = [NSMutableDictionary dictionary];

    }

    

    // 如果是GET请求，将参数拼接到url后面

    NSMutableString *url = [NSMutableString stringWithFormat:@"%@%@",LIFENGHANINTERFACE,urlstring];

    // 创建request请求

    __weak __block ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:[NSURL URLWithString:url]];

    // 请求方式

    [request setUploadProgressDelegate:self];

    request.showAccurateProgress = YES;

    [request setRequestMethod:@"POST"];

    [request setTimeOutSeconds:60];

    

    // 判断是否为POST请求，向请求体中添加参数

    

        for (NSString *key in params) {

            // 取到请求参数的value

            id value = [params objectForKey:key];

            

            // 判断是否为文件数据

            if ([value isKindOfClass:[NSData class]]) {

//                [request addData:value forKey:key];

//                NSData *videoData = [[NSData alloc] initWithContentsOfURL:fileUrl];

                [request setData:value withFileName:@".3gp" andContentType:nil forKey:key];

            } else {

                [request addPostValue:value forKey:key];

            }

        }

    

    // 数据返回的处理

    [request setCompletionBlock:^{

        // 取出相应请求的文件数据

        NSData *jsonData = request.responseData;

        

        // 取出数据，用block回调过去

        id result = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:nil];

        

        if (block != nil) {

            block(result);

        }

    }];

    

    // 请求失败

    [request setFailedBlock:^{

        NSLog(@"请求失败:%@",request.error);

        NSString *error = @"0";

        if (block != nil) {

            block(error);

        }

        

    }];

    __block float newProgress;

    __block float totalSize = 0;

    __block float theSize = 0;

    

    //这个方法会调用两次

    [request setUploadSizeIncrementedBlock:^(long long size) {

        totalSize = totalSize + size;

//        NSLog(@"totalSize ===== %f",totalSize);

        

    }];

    

    //在队列上传的时候需要加上total这个修正值

    [request setBytesSentBlock:^(unsigned long long size, unsigned long long total) {

        //the total is 修正量

        theSize += size;

//        NSLog(@"size ===== %lld", size);

//        NSLog(@"pro ===== %f",theSize/totalSize);

        newProgress = theSize/totalSize;

            

         if (proBlock != nil) {

                proBlock(newProgress);

           }

        

    }];

 

    // 发送异步请求

    [request startAsynchronous];

    

    return request;

}

//发布视频(viewcontroller中，在这里使用回调的Block）

-(void)_publishVideoAction : (NSURL *)_url

{

    //    添加视频接口

    //    请求：

    //        userid：会员id

    //

    //    返回：

    //        code：状态码

    //        msg：状态中文说明

    //        userid：会员id

    //    transcript: 考试成绩

    //        newtime：距离下一次考试时间

    

    //http://192.168.1.5/huirui/interface/getunewsAction.php?userid=1

    

    [super showMBProgressHUD:@"上传视频中..."];

    [self moveInView];

    

    NSData *videoData = [[NSData alloc] initWithContentsOfURL:url];

    NSDictionary *dic = @{@"userid":@"1",@"pic":videoData};

    

    [FCDataService requestWithMovieURL:@"addvedioAction.php" params:dic url:url dataType:@".3gp" block:^(id result) {

        NSLog(@"上传视频完成");

      //  [super hiddenMBProgressHUD];

       // [self moveOutView];

    } proBlock:^(float ProgressNum) {

        NSLog(@"进度条:%.2f",ProgressNum);

        //[self setUpdataView:ProgressNum];

    }];

    

}