Я пытаюсь правильно интегрировать MBProgressHUD в проект, пока я загружаю и обрабатываю некоторые данные.Прости меня за мое невежество, если я спрашиваю глупости, но я полный нуб ...
У меня есть класс "Data", который обрабатывает мои HTTPRequest, поэтому я считаю, что это подходящее место для размещениянекоторые вещи в:
-(void)resolve
{
// Create the request.
NSURLRequest *theRequest=[NSURLRequest requestWithURL:[[NSURL alloc] initWithString:[self url]]
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:60.0];
NSLog(@"Resolving content from: %@",[self url]);
// create the connection with the request
// and start loading the data
NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
if (theConnection) {
// Create the NSMutableData to hold the received data.
// receivedData is an instance variable declared elsewhere.
receivedData = [[NSMutableData data] retain];
} else {
NSLog(@"Content - resolve: connection failed");
}
// Here is the part that it makes me crazy...
HUD = [[MBProgressHUD showHUDAddedTo:self.view animated:YES] retain];
return;
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
// This method is called when the server has determined that it
// has enough information to create the NSURLResponse.
// It can be called multiple times, for example in the case of a
// redirect, so each time we reset the data.
// receivedData is an instance variable declared elsewhere.
expectedLength = [response expectedContentLength];
currentLength = 0;
HUD.mode = MBProgressHUDModeDeterminate;
[receivedData setLength:0];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
currentLength += [data length];
HUD.progress = currentLength / (float)expectedLength;
// Append the new data to receivedData.
// receivedData is an instance variable declared elsewhere.
[receivedData appendData:data];
return;
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
[HUD hide:YES];
// release the connection, and the data object
[connection release];
// receivedData is declared as a method instance elsewhere
[receivedData release];
// inform the user
NSLog(@"Content - Connection failed! Error - %@ %@",
[error localizedDescription],
[[error userInfo] objectForKey:NSURLErrorFailingURLStringErrorKey]);
return;
}
Теперь я знаю, что помещать «showHUDaddedTo» в - - (void) - неправильный путь ...
Я вызываю эту функцию данных изконтроллер представления с IBaction как это:
-(IBAction) btnClicked:(id) sender {
if ([[issue status] intValue] == 1 ) // issue is not downloaded
{
[(Content *)[issue content] resolve];
//HUD = [[MBProgressHUD showHUDAddedTo:self.navigationController.view animated:YES] retain];
}
else // issue is downloaded - needs to be archived
{
NSError * error = nil;
[[NSFileManager defaultManager] removeItemAtPath:[(Content *)[issue content] path] error:&error];
if (error) {
// implement error handling
}
else {
Content * c = (Content *)[issue content];
[c setPath:@""];
[issue setStatus:[NSNumber numberWithInt:1]];
[buttonView setTitle:@"Download" forState:UIControlStateNormal];
[gotoIssue setTitle:@"..." forState:UIControlStateNormal];
// notify all interested parties of the archived content
[[NSNotificationCenter defaultCenter] postNotificationName:@"contentArchived" object:self]; // make sure its persisted!
}
}
}
Проще говоря: я хотел бы вызвать все вещи MBProgressHUD из моего файла Conten.m в тот момент, когда я нажимаю кнопку загрузки в моем файле IssueController.m,Я думаю, теперь вы видите, где моя проблема: я не кодер ;-) Любая помощь приветствуется.
Приветствия,
sandor