ios 新浪微博分享
1. 首先在http://open.t.sina.com.cn/中申请成为开发者，再创建不同的应用，获得相应的AppKey （在下面链接中的source即为appkey）
2. 登录认证：
NSString *authString= [NSString stringWithFormat:@"%@:%@",sinaIDField.text,sinaPasswordField.text];
NSData *authData= [authString dataUsingEncoding:NSUTF8StringEncoding];
NSString *authValue= [NSString stringWithFormat:@"Basic%@",[authData base64EncodingWithLineLength:80]];
NSURL *url= [NSURL URLWithString:@"http://api.t.sina.com.cn/account/verify_credentials.xml?source=3930264715"];
NSMutableURLRequest *request= [[NSMutableURLRequest alloc] initWithURL:url];
[request setHTTPMethod:@"GET"];
[request setValue:authValue forHTTPHeaderField:@"Authorization"];
NSURLResponse *response;
NSError *error;
[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
[request release];
NSHTTPURLResponse *httpResponse= (NSHTTPURLResponse *)response;
int statusCode= [httpResponse statusCode];
NSLog(@"statuscode = %d",statusCode);
if (statusCode!= 200){
alertTitle = @"帐号或密码错误";
alertMassage = @"请您输入正确的帐号和密码！";
}else {
alertTitle = @"";
alertMassage = @"登录成功！";
}
}
UIAlertView *alert= [[UIAlertView alloc] initWithTitle:alertTitle
message:alertMassage
delegate:nil cancelButtonTitle:@"确定"
otherButtonTitles:nil];
[alert show];
[alert release];
3.将内容（图片 文字）发送到新浪微博
NSString *authString= [NSString stringWithFormat:@"%@:%@",[[NSUserDefaults standardUserDefaults] objectForKey:@"sinaID"],[[NSUserDefaults standardUserDefaults] objectForKey:@"sinaPassword"]];
NSData *authData= [authString dataUsingEncoding:NSUTF8StringEncoding];
NSString *authValue= [NSString stringWithFormat:@"Basic%@",[authData base64EncodingWithLineLength:80]];
NSString *boundary= @"0xKhTmLbOuNdArYckkk";
NSString *filename= @"test.jpg";
NSData *imageData= UIImageJPEGRepresentation(shareImage,1);
NSString *bodyPrefixString =[NSString stringWithFormat:@"--%@/r/n",boundary];
NSString *bodySuffixString =[NSString stringWithFormat:@"/r/n--%@--/r/n",boundary];
NSString *contentDisposition= [NSString stringWithFormat:@"Content-Disposition:form-data; name="pic"; filename="%@"/r/n",filename];
NSString *contentImageType =[NSString stringWithFormat:@"Content-Type:image/%@/r/n",[filename pathExtension]];
NSString *contentTransfer = @"Content-Transfer-Encoding:binary/r/n/r/n";
NSString *bodyUpdateField= [NSString stringWithFormat:@"Content-Disposition:form-data;name="status"/r/n/r/n%@/r/n",[NSString stringWithFormat:@"%@",textView.text]];
NSMutableData *postBody= [NSMutableData data];
[postBody appendData:[bodyPrefixString dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:NO]];
[postBody appendData:[bodyUpdateField dataUsingEncoding:NSUTF8StringEncoding ]];
[postBody appendData:[bodyPrefixString dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:NO]];
[postBody appendData:[contentDisposition dataUsingEncoding:NSUTF8StringEncoding ]];
[postBody appendData:[contentImageType dataUsingEncoding:NSUTF8StringEncoding ]];
[postBody appendData:[contentTransfer dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:imageData];
[postBody appendData:[bodySuffixString dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:NO]];
NSString *baseURL= [NSString stringWithFormat:@"http://api.t.sina.com.cn/statuses/upload.xml?source=3930264715"];
NSURL *url= [NSURL URLWithString:baseURL];
NSMutableURLRequest *mainRequest= [[NSMutableURLRequest alloc] initWithURL:url
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:30.0f];
[mainRequest setHTTPMethod:@"POST"];
[mainRequest setValue:authValue forHTTPHeaderField:@"Authorization"];
NSString *contentType= [NSString stringWithFormat:@"multipart/form-data;boundary=%@",boundary, nil];
[mainRequest setValue:contentType forHTTPHeaderField:@"Content-Type"];
[mainRequest setHTTPBody:postBody];
NSURLResponse *shareResponse;
NSError *error;
NSData *responseData= [NSURLConnection sendSynchronousRequest:mainRequest returningResponse:&shareResponse error:&error];
NSString *responseString= [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
NSHTTPURLResponse *httpResponse= (NSHTTPURLResponse *)shareResponse;
int statusCode= [httpResponse statusCode];
NSLog(@"statuscode = %d",statusCode);
BOOL succeed= NO;
if (statusCode== 200){
succeed = YES;
}
[mainRequest release];
NSLog(@"responsestring : %@",responseString);
[responseString release];
[uploadWaiting stopAnimating];
NSString *message= nil;
if (succeed){
message = @"分享成功";
}else {
message = @"分享失败";
}
UIAlertView *alert= [[UIAlertView alloc] initWithTitle:@"" message:message
delegate:self
cancelButtonTitle:@"确定" otherButtonTitles:nil];
[alert show];
[alert release];