Subject: Re: Show UIActivityIndicatorView asynchronously



Thanks. Works like a charm.

Regards,

Phil

Sent from Phil's iPhone

On Apr 28, 2011, at 1:38 PM, Matt Neuburg <matt@xxxxxxxxxxx> wrote:

> On Thu, 28 Apr 2011 06:26:17 -0400, Philip Vallone
> <philip.vallone@xxxxxxxxxxx> said:
>> Hi,
>>
>> I have a UIViewController that can take a few seconds to load. The view
>> searches an XML file and eventually displays the resuts. I want to show a
>> UIActivityIndicatorView while the view loads. Unfortunately they are on the
>> same thread. How can I get the UIActivityIndicatorView to display befiore
>> the view loads? With the below code, the UI freezes up (indicator never
>> shows) until the search is done.
>>
>> [self.activityIndicator startAnimating];
>>
>> TitleSearchResultsViewController *controller =
>> [[TitleSearchResultsViewController alloc]
>> initWithNibName:@"TitleSearchResultsViewController" bundle:nil];
>> [controller setTitle:@"Search Results"];
>
> Use delayed performance. Here's sample code from one of my own apps:
>
> - (void)tableView:(UITableView *)tableView
> didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
> [act startAnimating];
> // jump out using delayed performance, to give us a chance to start
> animating the UIActivityIndicatorView
> [self performSelector:@selector(showItemsForRow:) withObject:indexPath
> afterDelay:0.1];
> }
>
> And then showItemsForRow inits the view controller and loads its view in the
> usual way. m.
>
> --
> matt neu...

burg, phd = matt@xxxxxxxxxxx, <http://www.apeth.net/matt/>

> A fool + a tool + an autorelease pool = cool!
> Programming iOS 4!
> http://www.apeth.net/matt/default.html#iosbook
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