使用Facebook iOS SDK,假设我对用户的个人资料图片执行图形请求:
[FBRequest requestForgraphPath:@"me/picture"]
我会收到这个错误:
Response is a non-text MIME type; endpoints that return images and other binary data should be fetched using `NSURLRequest` and `NSURLConnection`.
这背后的原因是什么?手动编写请求只需要一分钟,但为什么这个常见任务不包含在Facebook iOS SDK中,或者我错过了什么?
通过Github上的Facebook iOS SDK repo,我们在FBRequestConnection.m中看到了这一点:
if (!error && [response.MIMEType hasPrefix:@"image"]) { error = [self errorWithCode:FBErrorNonTextMimeTypeReturned statusCode:0 parsedJSONResponse:nil innerError:nil message:@"Response is a non-text MIME type; endpoints that return images and other " @"binary data should be fetched using NSURLRequest and NSURLConnection"]; }
如果我正确理解这一点,FBRequestConnection会获得我想要的响应(即个人资料图片),然后告诉我我不能拥有它.多么可爱啊.为什么要首先提出请求?
对此有何评论?