根据你提供的有限信息,我假定,你会从一线(或其中任何次)上打一View。

而是使用以下方法:

[self performSelectorOnMainThread:<#(SEL)aSelector#>
                       withObject:<#(id)arg#> 
                    waitUntilDone:<#(BOOL)wait#>];

= = edit=

如果这名 app子从read子中接手,除了你的回响外,还要尝试增加一种新方法:

- (void) setMyImage:(UIImage*)theImage { 
   ... 
   myUIImageView.image = theImage; 
   ...
} 

and call this from the thread as mentioned above:

- (void) callBackWithImage:(UIImage*)imageFromUrl { 
    [self performSelectorOnMainThread:@selector(setMyImage:) 
                           withObject:imageFromUrl 
                        waitUntilDone:NO]; 
}