Swipe-to-Delete feature shows a Delete button when a user swipes horizontally across a row.
Lets see how to change the visibility of the status bar in an iphone/ipad application. The UIApplication class provides a centralized point of control and coordination for applications running on iOS. Every application must have exactly one instance of UIApplication (or a subclass of UIApplication). When an application is launched, the UIApplicationMain function is called; [...]
Lets see how to change the orientation of the status bar programmatically in an iphone/ipad application. There are four orientations: Portrait, PortraitUpsideDown, LandscapeLeft, LandscapeRight. The UIApplication class provides a centralized point of control and coordination for applications running on iOS. Every application must have exactly one instance of UIApplication (or a subclass of UIApplication). When [...]
Recently, i had to make an update to one of my apps. I was trying to figure out a way to see if all the users have upgraded their app. I made the app to get the current version number and send it to the server. Here is, how you can get the current [...]
An NSNotificationCenter object (or simply, notification center) provides a mechanism for broadcasting information within a program. An NSNotificationCenter object is essentially a notification dispatch table. Objects register with a notification center to receive notifications (NSNotification objects) using the addObserver:selector:name:object: or addObserverForName:object:queue:usingBlock: methods. Each invocation of this method specifies a set of notifications. Therefore, objects may [...]
