UIActivityIndi​​catorView + AFNetworking或UIProgressView + AFNetworking

Question

您能帮我了解，如何使用UIActivityIndicatorView+AFNetworking或UIProgressView+AFNetworking。我是否需要再创建一个UIViewController，如果是，我需要在哪里实施？发现我需要使用setProgressWithUploadProgressOfOperation或setAnimatingWithStateOfOperation，但我仍然需要一个示例。

我的代码是：

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; 
manager.responseSerializer = [AFJSONResponseSerializer serializer]; 
[manager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Accept"]; 
[manager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Content-Type"]; 
[manager.requestSerializer setValue:@"" forHTTPHeaderField:@""]; 
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:@"text/html"]; 
[manager GET:@"blablabla" parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) { 

    // 3 
    //[self.view setAnimatingWithStateOfOperation:operation]; 
    NSLog(@"JSON: %@", responseObject); 
    NSArray *carsList = responseObject[@"data"]; 
    [self showStream:carsList]; 

} failure:^(AFHTTPRequestOperation *operation, NSError *error) { 

    // 4 
    UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Error" 
                 message:[error localizedDescription] 
                 delegate:nil 
               cancelButtonTitle:@"Ok" 
               otherButtonTitles:nil]; 
    [alertView show]; 
}]; 

Answer 1

我想，你想展示UIActivityIndi​​cator同时操作加载。 所以，你必须做这样的事情：

// your code 

AFHTTPRequestOperation *operation = [manager GET:@"blablabla" parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) { 
    // even more code 
} failure:^(AFHTTPRequestOperation *operation, NSError *error) { 
    // and here 
}]; 

UIActivityIndicatorView *indicatorView = [[UIActivityIndicatorView alloc] init]; 
indicatorView.frame = /*calculate frame here*/; 
[self.view addSubView:indicatorView]; 
[indicatorView setAnimatingWithStateOfOperation:operation];