Just a short version of our tutorial "How to send mail from an iPhone app"

Short snippet that explains how to create new UIView programmatically, and than setu rounded corners, background color and than add this view to your main view on the screen

Example of validation of e-mail address field in Cocoa and on iPhone in XCode using regular expression without need of using RegexKitLite

This function will escape the NSString for SQLite3 database. You can use this function to escape or change any other character.

Very nice snippet, this allows you to keep your screen turned on as long as you need. Using the idleTimerDisabled in applicationDidFinishLaunching (UIApplication)

Really simple example how to check the first launch of the iPhone application written in Objective-C in XCode.

Example of using NSMutableArray and than reading all the variables back into the NSLog as a NSString.

Here you can see how to enable or disable (show/hide) the grey statusbar with the name of your operator and battery status in your iPhone application.

Example how to implement background image for UIView in your iPhone application.

I you want to change state of the UISwitch with animation (looks better :)) just check this snippet.

We will be using UISwitch, beginAnimations, setAnimationDuration and commitAnimations