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I have a UITableView which from an external RSS feed.
When you select a row it uses navigationController and slides in from the right, the problem is that the RSS feed contains images therefore it can can take a few seconds to load and without any indication of what is going on you can mistake it for an application crash.
I decided to add a spinner so that you know that new page is loading.
Here is my code:
RootViewController.m
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSLog(@"Loading New Page");
[tableView deselectRowAtIndexPath:indexPath animated:YES];
DetailsViewController *detailViewController = [[DetailsViewController alloc] initWithNibName:@"DetailsViewController" bundle:nil];
detailViewController.item = [rssItems objectAtIndex:floor(indexPath.row/2)];
[self.navigationController pushViewController:detailViewController animated:YES];
[detailViewController release];
UIActivityIndicatorView *spinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
spinner.center = CGPointMake(160, 240);
[self.view addSubview:spinner];
[spinner startAnimating];
[spinner release];
}
DetailsViewController.m
- (void)viewDidLoad {
[super viewDidLoad];
NSString *imgURL = [item objectForKey:@"image"];
NSData *mydata = [[NSData alloc] initWithContentsOfURL:[NSURL URLWithString:imgURL]];
item_photo.image = [[UIImage alloc] initWithData:mydata];
item_title.text = [item objectForKey:@"title"];
item_date.text = [NSString stringWithFormat:@"Date: %@",[item objectForKey:@"date"]];
item_time.text = [NSString stringWithFormat:@"Time: %@",[item objectForKey:@"time"]];
item_cost.text = [NSString stringWithFormat:@"Cost: £%@",[item objectForKey:@"cost"]];
item_info.text = [item objectForKey:@"description"];
self.navigationItem.title = @"Event Type";
}