Sorry, I don't have time right now to fully respond, but first thing's first:
UIKit is generally not thread-safe, so you should not invoke user interface
actions (like popping a nav controller) on a secondary thread.
This is a situation where GCD can make your life a lot simpler (with nested
dispatch_async() calls)...
(Sent from my iPhone.)
--
Conrad Shultz
www.synthetiqsolutions.com
On Aug 29, 2011, at 19:34, Leon Qiao <leon.qiao....@gmail.com> wrote:
> Dear all,
>
> The UI I made is like the system app "Contact", there's an "add" bar button
> on the navigation bar. And a table view where you can tap and enter the
> detail view. The problem is when the user tap the bar button item and the
> table view cell at the same time, it doesn't work well.
>
> The code here:
>
> Action for right bar button item:
> - (IBAction)saveAction: (id)sender;
> {
> ...
> ...
> [NSThread detachNewThreadSelector:@selector(saveTheData) toTarget:self
> withObject:nil];
> }
>
> - (void)saveTheData
> {
> //some save action...
> [self.navigationController popToRootViewControllerAnimated: YES];
> //when complete, pop to the root
> }
>
> Action for table view's delegate method
>
> - (void)tableView:(UITableView *)tableView
> didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
> DetailViewController *controller = [[DetailViewController alloc]init];
> [self.navigationController pushViewController: controller animated:
> YES];
> [controller release];
> }
>
> When using UIButton, we can set the exclusive touch property to avoid
> tapping the two buttons at the same time. But what should I do for the table
> view and the bar button item.
>
> Thanks a lot!
>
> Best regards
> Leon
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