Webservice load wait

[hijinks]

I am creating an app to tie into a web service. Now I want to show a loading indicator since it can take a few sections for the data to come back.

My app is all based on a tableview so everything is like the drilldown example. I'd like to use a modal but from reading Apple frowns on using them.

So anyone have any ideas on what options I can do?

thanks

[Abel]

Maybe draw a progress bar on the screen but not on a modal and just fade out the table view till its fully loaded. All can be done with core animation and core graphics. Don't let what apple frowns upon affect you too much. If a modal is the most user friendly way you can think of then you may be an exception. Apple just frowns upon over using them for causes that can be handled in some other more organized way.

Originally Posted by hijinks

I am creating an app to tie into a web service. Now I want to show a loading indicator since it can take a few sections for the data to come back.

My app is all based on a tableview so everything is like the drilldown example. I'd like to use a modal but from reading Apple frowns on using them.

So anyone have any ideas on what options I can do?

thanks

[Jume]

I'm doing it in this way using UINavigationController and view controllers. This is the structure I have

UINavigationController
|
|--UIViewController //root view controller
    |
    |--UIView // showing activity indicator
    |--UITableView // showing table

So here how I code this

1) I'm loading and displaying UINavigationController with a root view controller
2) Asking a web service for data and loading UIView with activity indicator as a root view controller's view
3) Once the data from web service is ready I animate the opacity of the root controller's view to 0.0 and then I'm replacing it with the UITableView ...

I think apple does something similar in App Store and iTunes apps.

[Abel]

Very similar to what I suggested, seems like the most efficient and prettiest way to do it. Just do something playing with the opacity and displaying the indicator.

What I would do is have the indicator be the main focus by lowering the table views opacity then animating it back into full opacity when the indicator is done.

Originally Posted by Jume

I'm doing it in this way using UINavigationController and view controllers. This is the structure I have

UINavigationController
|
|--UIViewController //root view controller
    |
    |--UIView // showing activity indicator
    |--UITableView // showing table

So here how I code this

1) I'm loading and displaying UINavigationController with a root view controller
2) Asking a web service for data and loading UIView with activity indicator as a root view controller's view
3) Once the data from web service is ready I animate the opacity of the root controller's view to 0.0 and then I'm replacing it with the UITableView ...

I think apple does something similar in App Store and iTunes apps.

[estupefactika]

Im recently new..., I want to do the same but i dont know how to implementat it, have someone any exmample of this? to make the opacity of the root controller view and to replace with the uitableview. Thanks

[BostonMerlin]

on my webservice call i first load the table view, then before the webservice call add a view on top of my tableview shown below.. a timer checks a background thread for the webservice call to complete.. once complete i remove the overlay view with animations.. looks great.

	//SETS UP FADED OVERLAY FOR WHEN USER HITS SYNC BUTTON
	fadeView = [[UIView alloc] initWithFrame:CGRectMake(0,0,320,373) ];
	fadeView.backgroundColor = [UIColor blackColor];
	[fadeView setAlpha:0.0];
	fadeView.tag = 1;

        //STARTS THE SYNC METHOD
	[self.view addSubview:fadeView];
	[fadeView setAlpha:0.0];	
	[UIView beginAnimations:@"fadeOutSync" context:NULL];
	[UIView setAnimationWillStartSelector:@selector (syncFadeViewDidStart1:context:) ];
	[UIView setAnimationDidStopSelector:@selector (syncFadeViewDidEnd1:finished:context:) ];
	[UIView setAnimationDelegate:self];
	[UIView setAnimationDuration:1.5];
	[fadeView setAlpha:0.7];
	[UIView commitAnimations];

        //ENDS THE SYNC METHOD
	[UIView beginAnimations:@"fadeInSync" context:NULL];
	[UIView setAnimationWillStartSelector:@selector (syncFadeViewDidStart2:context:) ];
	[UIView setAnimationDidStopSelector:@selector (syncFadeViewDidEnd2:finished:context:) ];
	[UIView setAnimationDelegate:self];
	[UIView setAnimationDuration:1.5];
	[fadeView setAlpha:0.0];
	[UIView commitAnimations];

[uly81]

i'm displaying a full screen loading-view (.80 alpha, black, with activity indicator and label) sitting in the main xib and initially had a problem with the view not showing up while waiting for the data to be returned in a synchronous url connection. the connection blocked the ui rendering so the view just quickly appeared after all data was received and disappeared a few milliseconds later.

after many, many tries i've put the url request code into a thread which solved the issue.

just in case someone is having the same issue, can't guarantee that this is the nices way to solve this, though