IOS接受到消息的方法里怎么调用不了UIViewController里的其他方法？

[chengsan]

// this function is called in a separated thread, it gets called when receive msg from icomet server
//回调接口
size_t icomet_callback(char _ptr, size_t size, size_t nmemb, void *userdata)
{
const size_t sizeInBytes = size_nmemb;
NSData data = [[NSData alloc] initWithBytes:ptr length:sizeInBytes];
NSString s = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

NSLog(@"返回结果:%@", s);

//这里为什么调用不了UIViewController里的其他方法

return sizeInBytes;

}

[ideawu]

注释里已经说非常清楚了, 因为这是单独的线程. 你需要搜索一下iOS多线程相关的资料. 简单点说, 就是要

dispatch_async(dispatch_get_main_queue()...

[chengsan]

好的，感谢

[chengsan]

能给个简单的事例吗，照你的方法好像不行
// this function is called in a separated thread, it gets called when receive msg from icomet server
//回调接口
size_t icomet_callback(char _ptr, size_t size, size_t nmemb, void *userdata)
{
const size_t sizeInBytes = size_nmemb;
NSData data = [[NSData alloc] initWithBytes:ptr length:sizeInBytes];
NSString s = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

//开启主线程
dispatch_async(dispatch_get_main_queue(), ^
               {

                   if([NSThread isMainThread])
                   {
                       NSLog(@"回到主线程");
                   }
                   [self setTextResult:s];//这句话说self没有定义

               });



return sizeInBytes;

}

[ideawu]

你好, 之前回复的方案不完整, 我已经更新了 wiki 中的示例, 你参考示例代码即可: https://github.com/ideawu/icomet/wiki/iComet-for-iOS-App