Question

我使用带有ARC的Xcode 4.2.1

我尝试使用异步请求来肥皂网服务。我有2个类名称Connector和EmergencyCall。 EmergencyCall是Connector的代表。

这是Connector.h

@protocol ConnectorDelegate;

@interface Connector : NSObject

@property (retain,nonatomic) NSMutableData *webData;
@property (retain,nonatomic) NSString *theXML;
@property (nonatomic,assign) id<ConnectorDelegate> delegate;
@property (nonatomic,retain) NSString *theURL;

-(void)callWebServiceWithSoapBody:(NSString *)soapBody;

-(id)initWithURL:(NSString *)url;
+(id)ConnectorWithURL:(NSString *)url;

@end

@protocol ConnectorDelegate <NSObject>

-(void)callDidFinish:(Connector *)controller;

@end

在Connector.m中的

我使用带有异步请求的NSURLConnection

NSURLConnection * theConnection = [[NSURLConnection alloc] initWithRequest：theRequest delegate：self];

三种连接方法

-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
    [webData setLength: 0];
}
-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
    [webData appendData:data];
}
-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
    NSLog(@"Cannot Connect");
}
-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
    NSLog(@"DONE. Received Bytes: %d", [webData length]);
    theXML = [[NSString alloc] initWithBytes: [webData mutableBytes] length:[webData length] encoding:NSUTF8StringEncoding];
    NSLog(@"%@",theXML);
    [self.delegate callDidFinish:self]; <<<<< error SIGABRT and EXC_BAD_ACCES
}

我可以连接到Web服务并在XML中获得响应。我试图将XML发送到EmergencyCall类以从xML解析为objective-c对象，但是我收到错误SIGABRT和EXC_BAD_ACCES。我想那是因为我在

中设置了另一个委托

NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];

现在我不知道如何将Connector类中的XML发送到EmergencyCall类。

我尝试连接同步请求的另一种方式

NSURLResponse *response = nil;
NSError *error = nil;
NSData thewebData = [NSURLConnection sendSynchronousRequest:theRequest returningResponse:response error:error];<<< the Xcode say autorelease diallowed in ARC

Xcode说NSURLResponse和NSData自动释放在ARC中拨号

所以我用-fno-objc-arc标记了这个Connector类，但仍然出现错误。

我不知道该怎么办？拜托，有人建议我。

如何在connectionDidFinishLoading方法中调用委托

0 个答案: