How to style a table view header / footer

The UITableView implements a header and a footer when you’re using the tableView:titleForHeaderInSection method (tableView:titleForFooterInSection respectively). However when the header (or the footer) is displayed you can’t change the font or colour of your text. You can however implement the following methods in your table view delegate and create a custom UILabel object for the […]

How to add a background image to a table view

The easiest way to do this is by adding a UIImage to your table. Rather than instantiating a new table object you can simply add the following line into the first Table View Data Source method you have – such as this one: – (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { tableView.backgroundView = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@”background.jpg”]]; // Return the […]

How to react to a UIAlertView

An alert view has the clickedButtonAtIndex property. The first clicked button is 0, the next one 1, and so forth. If you conform to the UIAlertViewDelegate protocol you can implement the following method and react to each pressed button accordingly, or…

How to show the Network Activity Indicator (spinning wheel in the iOS status bar)

Here’s how you start it: UIApplication *application = [UIApplication sharedApplication]; application.networkActivityIndicatorVisible = YES; And this is how you stop it: UIApplication *application = [UIApplication sharedApplication]; application.networkActivityIndicatorVisible = YES; Comes in handy when displaying a UIWebView or performing any other activity that requires the user to “hang in there for a bit”. If you want to […]

How to pass an Index Path to another table

Say you have a central array somewhere and would like display this in more detail via two table view controllers. Instead of passing only the relevant information, you want to pass the entire index path from table1 to table2 and beyond. You can pass data in the prepareForSegue:sender method and let the Storyboard to the […]