Entries in category "iOS Programming":
iOS tip: How to change a navigation bar colour
UINavigationController *navC = [[UINavigationController alloc] initWithRootViewController:startVC]; navC.navigationBar.tintColor = [UIColor colorWithRed:130/255.0 green:60/255.0 blue:35/255.0 alpha:1.0];
iOS tip: Transparent table cells
Here is a simple yet poweful iOS development trick. All you need to do to make your table cells transparent is to replace the cell’s background view.
UIView *bgV = [[[UIView alloc] init] autorelease]; bgV.backgroundColor = [UIColor colorWithRed:216/255.0 green:195/255.0 blue:164/255.0 alpha:1.0]; bgV.alpha = 0.4; cell.selectedBackgroundView = bgV; [bgV release];
How to create an activity indicator programmatically
Here is how to create an activity indicator programmatically inside your view controller:
// create activity indicator activityIndicator = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 20.0f, 20.0f)]; [activityIndicator setActivityIndicatorViewStyle:UIActivityIndicatorViewStyleWhite]; ... // release it [activityIndicator release];
There is no spoon – iPhone vs. iPad
My presentation at the Apple store in Regent Street, London, part of the May talks of the London iPhone Developers Group.
The Adventure – From idea to the iPhone (slides)
Here is another presentation I did for London iPhone Developers User Group at the March 2010 meeting (LinkedIn login required) inside the Apple Store on Regent Street, London.
Rails & iPhone integration
ObjectiveResource is an Objective-C port of Ruby on Rails’ ActiveResource. It provides a way to serialize objects to and from Rails’ standard RESTful web-services (via XML or JSON) and handles much of the complexity involved with invoking web-services of any language from the iPhone. This talk shows you how easy it is to create a 2-way communication channel between a very basic Rails application and an iPhone app.
iPhone: Retrieve system details
Compared with the Android platform, the segmentation on Apple mobile technology is very limited. Literally, there are 3 versions of the iPhone and 2 versions of the iPod Touch, all of them with the same screen resolution.
Still, there are differences that need to be accounted for when developing for this platform. In this article, you’ll find couple of lists of useful methods as well as couple of lines to help you perform different logic based on the device.
Image courtesy of cogdogblog.
