更新UIProgressView，同时发布视频到php

Question

我想弄清楚如何更新我的UIProgressView，而我上传视频到我的服务器。视频是用户挑选视频，在这里是我的代码上传到我的服务器：

NSMutableArray *array = [[NSMutableArray alloc]initWithContentsOfFile:[self saveUserLogin]]; 

int test; 
NSString *string = [array objectAtIndex:3]; 
test = [string intValue]; 
test++; 
NSData *videoData = fileData; 
NSString *urlString = [[NSString alloc]initWithFormat:@"http://www.site.com/members/uploadMovie.php?&username=%@", [array objectAtIndex:0]]; 

NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init]; 
[request setURL:[NSURL URLWithString:urlString]]; 
[request setHTTPMethod:@"POST"]; 

NSString *boundary = [NSString stringWithString:@"---------------------------14737809831466499882746641449"]; 
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@", boundary]; 
[request addValue:contentType forHTTPHeaderField:@"Content-Type"]; 

NSMutableData *body = [NSMutableData data]; 
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
NSString *postName = [[NSString alloc]initWithFormat:@"Content-Disposition: form-data; name=\"userfile\"; filename=\"vid%i.mov\"\r\n", test]; 
[body appendData:[[NSString stringWithString:postName] dataUsingEncoding:NSUTF8StringEncoding]]; 
[body appendData:[[NSString stringWithString:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; 
[body appendData:[NSData dataWithData:videoData]]; 
[body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
[request setHTTPBody:body]; 


NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil]; 
NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding]; 

NSLog(@"%@", returnString); 

NSArray *values = [[NSArray alloc] initWithObjects: [array objectAtIndex:0],[array objectAtIndex:1], [array objectAtIndex:2], [NSString stringWithFormat:@"%i", test], nil]; 
[values writeToFile:[self saveUserLogin] atomically:YES]; 
[self.delegate didFinishController:self]; 

我UIProgressView被命名为ProgressForUpload，我猜，我将不得不使用一个新的线程。这个程序我也做上传图片，我能够通过这样来更新的图像：

int copy = ForProgress; 
    ForProgress = 100/ForProgress; 

    NSString *togetridof = [[NSString alloc]initWithFormat:@"%f", ForProgress]; 
    NSString *stringWithoutdot = [togetridof stringByReplacingOccurrencesOfString:@"." withString:@""]; 


    if(copy > 1 && copy < 11){ 
     progressString = [[NSString alloc]initWithFormat:@"0.%@", stringWithoutdot]; 
    } 
    if (copy > 10) { 
     progressString = [[NSString alloc]initWithFormat:@"0.0%@", stringWithoutdot]; 
    } 
    if(ForProgress == 100){ 
     progressString = [[NSString alloc]initWithFormat:@"%@", stringWithoutdot]; 
    } 

    tellprogress = [progressString floatValue]; 

然后当我上传我创建一个新的线程，将增加告诉进步到目前的进展图像，直到完成。

我不知道这样的东西是否适用于上传视频。

谢谢，雅各布

Answer 1

我会实现这个使用异步联网，那么你可以从你的

- (NSURLRequest *)connection:(NSURLConnection *)connection willSendRequest:(NSURLRequest *)request redirectResponse:(NSURLResponse *)response; 

更新进度条苹果继续警告说，网络上的主线程是坏的。