App icon without gloss

Ever noticed that on iOS devices there are icons with “gloss” and icons without? The Twitter icon below does have a gloss, the Dropbox icon does not. The default setting in an XCode project is to apply gloss to your icons. If your icon already has a gloss...

NSLog format specifiers

Logging has a lot of possible format specifiers. The general syntax of NSLog is: NSLog(@”Text %@”, object); NSLog(@”I want to log: %@”, myString); int i = 1234; NSLog(@”The number is: %d”, i); The possible format specifiers are: %@...

Memory management in iOS

In iOS 5 “ARC” has been introduced. ARC stands for Automatic Reference Counting. The posting below is still valid for iOS < 5. In iOS 5 the there still is reference counting, but it is automatic. Therefore ARC is no garbage collection. -----------...

Popup message in iOS with delegate

If you just want to show a popup message without responding to the buttons pressed look at the snippet : “Popup message in iOS” If you want to respond to a popup message the popup message probable has more than 1 button. To figure out what button got...

Popup message in iOS

Showing a popup message to a user in iOS is not very difficult. The code below shows a popup message with 1 button. If the user presses the button the popup message disappears. No code is executed when the uses pushes the button. (For an example with delegates look at...