Ios 非主线程不等待委托方法完成
我正在尝试使用应用程序中的线程调用web服务并从中获取数据 连接D完成加载 委托方法,但非主线程不会等待委托方法完成 以下是线程的代码:Ios 非主线程不等待委托方法完成,ios,multithreading,Ios,Multithreading,我正在尝试使用应用程序中的线程调用web服务并从中获取数据 连接D完成加载 委托方法,但非主线程不会等待委托方法完成 以下是线程的代码: dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ //Here your non-main thread. [self Login_WS]; //slee
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
//Here your non-main thread.
[self Login_WS];
//sleep(10);
dispatch_async(dispatch_get_main_queue(), ^{
//Here you returns to main thread.
//[MMProgressHUD updateProgress:1.f];
[MMProgressHUD dismissWithSuccess:@"done"];
DetailOfMenu *detail = [self.storyboard instantiateViewControllerWithIdentifier:@"detail"];
//[colorVC setColor:color];
UINavigationController *colorNavi1 = [[UINavigationController alloc] initWithRootViewController:detail];
[self.qp_splitViewController setRightController:colorNavi1];
MenuTableView *colorVC = [self.storyboard instantiateViewControllerWithIdentifier:@"menu"];
//[colorVC setColor:color];
UINavigationController *colorNavi = [[UINavigationController alloc] initWithRootViewController:colorVC];
[self.qp_splitViewController setLeftController:colorNavi];
});
});
下面是web服务的代码:
-(void)Login_WS{
flag =1;
NSString* ENC_UserName = [self ENC:Username.text];
NSString* ENC_Password = [self ENC:Password.text];
NSString *envelopeText = [NSString stringWithFormat: @"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
"<soap12:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap12=\"http://www.w3.org/2003/05/soap-envelope\">\n"
"<soap12:Body>\n"
"<GetReportsNames xmlns=\"http://tempuri.org/\">\n"
"</GetReportsNames>\n"
"</soap12:Body>\n"
"</soap12:Envelope>\n",];
//envelopeText = [NSString stringWithFormat:envelopeText, txt1.text];
NSData *envelope = [envelopeText dataUsingEncoding:NSUTF8StringEncoding];
//NSLog(@"URL in Call_WS in SplashScreen %@",Var.url);
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:30.0];
[request addValue:@"http://tempuri.org/GetReportsNames" forHTTPHeaderField:@"SOAPAction"];
[request setHTTPMethod:@"POST"];
[request setHTTPBody:envelope];
[request setValue:@"application/soap+xml; charset=utf-8"
forHTTPHeaderField:@"Content-Type"];
[request setValue:[NSString stringWithFormat:@"%d", [envelope length]]forHTTPHeaderField:@"Content-Length"];
// fire away
NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
if (connection)
responseData = [NSMutableData data];
else
NSLog(@"NSURLConnection initWithRequest: Failed to return a connection.");
}
-(无效)登录\u WS{
flag=1;
NSString*ENC_UserName=[self-ENC:UserName.text];
NSString*ENC_Password=[self-ENC:Password.text];
NSString*envelopeText=[NSString stringWithFormat:@“\n”
“\n”
“\n”
“\n”
“\n”
“\n”
“\n”,];
//envelopeText=[NSString stringWithFormat:envelopeText,txt1.text];
NSData*信封=[envelopeText dataUsingEncoding:NSUTF8StringEncoding];
//NSLog(@“SplashScreen中调用的URL%@”,Var.URL);
NSMutableURLRequest*request=[NSMutableUrlRequestWithURL:[NSURL URLWithString:url]缓存策略:NSURLRequestUseProtocolCachePolicy timeoutInterval:30.0];
[请求添加值:@”http://tempuri.org/GetReportsNamesforHTTPHeaderField:@“SOAPAction”];
[请求设置HttpMethod:@“POST”];
[请求setHTTPBody:信封];
[请求setValue:@“应用程序/soap+xml;字符集=utf-8”
forHTTPHeaderField:@“内容类型”];
[request setValue:[NSString stringWithFormat:@“%d”,信封长度]]forHTTPHeaderField:@“内容长度”];
//开火
NSURLConnection*connection=[[NSURLConnection alloc]initWithRequest:request委托:self];
如果(连接)
responseData=[NSMutableData];
其他的
NSLog(@“NSURLConnection initWithRequest:未能返回连接。”);
}
注意:它在非线程状态下工作正常。您应该在调用
[self-Login\WS]后执行当前的UI部分代码>当web服务调用返回响应或失败时
由于webservice调用也是异步的,Login\u WS方法在您创建它之后立即返回,因此您的UI代码将在那里被调用。而是实施nsurlconnectionelegate
协议,并在以下位置更新用户界面:
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
或:
不确定要在代码中的哪个点等待,以及要阻止哪个部分执行。您的问题属于同步类别,其中一个线程必须等待其他部分完成工作。为此,您可以使用NSCondition。你会在谷歌上找到很好的例子:-)
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error