我试图下载使用AFNetworking 3.0图像这样的方式:AFNetworking 3.0不能下载图像
- (UIImage *) loadImage:(NSString *) link
{
__block UIImage *image = [UIImage imageNamed:@"no_user_profile_pic.png"];
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
manager.responseSerializer = [AFImageResponseSerializer serializer];
[manager GET:[link stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLHostAllowedCharacterSet]]
parameters:nil
progress:nil
success:^(NSURLSessionTask *task, id responseObject) {
image = (UIImage *) responseObject;
} failure:^(NSURLSessionTask *operation, NSError *error) {
NSLog(@"Load Image error - %@", [error description]);
}];
return image;
}
,每次我收到此错误:
*** Assertion failure in -[AFHTTPRequestSerializer requestWithMethod:URLString:parameters:error:], /Users/.../AFNetworking/AFURLRequestSerialization.m:353
我可以”弄清楚我做错了什么。发生了什么错误?而不是URLHostAllowedCharacterSet
从错误日志看来,'链接'似乎是空的。 –
'stringByAddingPercentEncodingWithAllowedCharacters:'将加密包含'http://'的URL,这将成为'http%3A%2F%2F',并且不再是有效的URL。 – rckoenes
尝试添加异常断点以获取错误所在的确切行。 –