ios - 一个函数中的 NSURLConnectionDelegate 回调

Question

我正在尝试创建我自己的 Request 类，我打算在我的整个应用程序中使用它。这是我到目前为止一直想出的代码。

-(IIWRequest *)initAndLaunchWithDictionnary:(NSDictionary *)dictionnary
{
    self=[super init];
    if (self) {
        // Create the request.
        NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://xxxxx.com/app/"]];

        // Convert data
        SBJsonWriter *jsonWriter = [[SBJsonWriter alloc] init];
        NSString *jsonData = [jsonWriter stringWithObject:dictionnary];
        NSLog(@"jsonData : %@",jsonData);
        NSData *requestData = [jsonData dataUsingEncoding: NSUTF8StringEncoding];
        request.HTTPBody = requestData;

        // This is how we set header fields
        [request setHTTPMethod:@"POST"];
        [request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
        [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
        [request setValue:[NSString stringWithFormat:@"%d", [requestData length]] forHTTPHeaderField:@"Content-Length"];
        [request setHTTPBody: requestData];

        // Create url connection and fire request
        NSURLConnection *connection = [NSURLConnection connectionWithRequest:request delegate:self];
        [self activateNetworkActivityIndicator];
        if (connection) {
            NSLog(@"Connection");
        } else {
            NSLog(@"No connection");
        }
    }
    return self;
}

我已经包含了 NSURLConnectionDelegate。我想触发连接回调，例如 did finished 或 did fail back 到前面提到的函数。所有这些的目标是最终只调用一种方法，如下所示:

-(IIWRequest *)initAndLaunchWithDictionnary:(NSDictionary *)dictionary inBackgroundWithBlock:^(BOOL succeeded){}

有什么想法吗？谢谢!

Answer 1

使用 NSURLConnection 类的 block 方法也会降低你的功能 sendAsynchronousRequest:queue:completionHandler:

阅读此 doc .