用iPhone发布图片至推特

Question

我完全不熟悉在ios4上使用Twitter API。 我正在寻找将uiimage发布到用户页面的最简单方法。 如何？

Answer 1

使用http://dev.twitpic.com/

在HTTP请求中发布您的形象在这里张贴评论，如果您需要帮助

这里是代码 -

-(void)postToTwitter 
{ 

    // create the URL 
    NSURL *postURL = [NSURL URLWithString:@"http://api.twitpic.com/1/uploadAndPost.xml"]; 

    // create the connection 
    NSMutableURLRequest *postRequest = [NSMutableURLRequest requestWithURL:postURL 
                   cachePolicy:NSURLRequestUseProtocolCachePolicy 
                  timeoutInterval:30.0]; 

    // change type to POST (default is GET) 
    [postRequest setHTTPMethod:@"POST"]; 



    // create data 
    NSMutableData *postBody = [NSMutableData data]; 

    NSString *username = emailTextField.text; 
    NSString *password = passTextField.text; 

    NSString *consumer_token=@"consumer token"; 
    NSString *consumer_secret=@"consumer secret "; 
    NSString *oauth_token=@"oauth token"; 
    NSString *oauth_secret=@"oauth secret"; 
    NSString *api_key=@"api key"; 

    NSString *message = commentTxt.text; 


    // just some random text that will never occur in the body 
    NSString *stringBoundary = @"0xKhTmLbOuNdArY---This_Is_ThE_BoUnDaRyy---pqo"; 
    // header value 
    NSString *headerBoundary = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",stringBoundary]; 
    // set header 
    [postRequest addValue:headerBoundary forHTTPHeaderField:@"Content-Type"]; 

    // username part 
    [postBody appendData:[[NSString stringWithFormat:@"--%@\r\n", stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"username\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[username dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; 

    // password part 
    [postBody appendData:[[NSString stringWithFormat:@"--%@\r\n", stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"password\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[password dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; 


    // api_key 
    [postBody appendData:[[NSString stringWithFormat:@"--%@\r\n", stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"key\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[api_key dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; 

    // consumer_token 
    [postBody appendData:[[NSString stringWithFormat:@"--%@\r\n", stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"consumer_token\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[consumer_token dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; 

    // consumer_secret 
    [postBody appendData:[[NSString stringWithFormat:@"--%@\r\n", stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"consumer_secret\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[consumer_secret dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; 

    //oauth_token 
    [postBody appendData:[[NSString stringWithFormat:@"--%@\r\n", stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"oauth_token\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[oauth_token dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; 

    //oauth_secret 
    [postBody appendData:[[NSString stringWithFormat:@"--%@\r\n", stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"oauth_secret\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[oauth_secret dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; 

    // message part 
    [postBody appendData:[[NSString stringWithFormat:@"--%@\r\n", stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"message\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[message dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; 


    // media part 
    [postBody appendData:[[NSString stringWithFormat:@"--%@\r\n", stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[@"Content-Disposition: form-data; name=\"media\"; filename=\"fish.jpg\"\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[@"Content-Type: image/jpeg\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; 
    [postBody appendData:[@"Content-Transfer-Encoding: binary\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; 

    img=[cFun correctImageOrientation:img]; 
    NSData *imageData = UIImageJPEGRepresentation(img, 90); 

    // add it to body 
    [postBody appendData:imageData]; 
    [postBody appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; 

    // final boundary 
    [postBody appendData:[[NSString stringWithFormat:@"--%@\r\n", stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; 


    // add body to post 
    [postRequest setHTTPBody:postBody]; 

    // pointers to some necessary objects 
    //NSURLResponse* response; 
    //NSError* error; 
    [activity_bg setHidden:NO]; 
    [activityIndicator startAnimating]; 

    NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:postRequest delegate:self]; 

    if(theConnection) 
    { 
     webData = [[NSMutableData data] retain]; 
    } 
    else 
    { 
     NSLog(@"theConnection is NULL"); 
    } 

}