更新UIProgressView，同時發佈視頻到php

Question

我想弄清楚如何更新我的UIProgressView，而我上傳視頻到我的服務器。視頻是用戶挑選視頻，在這裏是我的代碼上傳到我的服務器：

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被命名爲ProgressForUpload，我猜，我將不得不使用一個新的線程。這個程序我也做上傳圖片，我能夠通過這樣來更新的圖像：

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]; 

然後當我上傳我創建一個新的線程，將增加告訴進步到目前的進展圖像，直到完成。

我不知道這樣的東西是否適用於上傳視頻。

謝謝，雅各布

Answer 1

我會實現這個使用異步聯網，那麼你可以從你的

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

更新進度條蘋果繼續警告說，網絡上的主線程是壞的。