Harpy is a utility that checks a user's currently installed version of your iOS application against the version that is currently available in the AppStore. If a new version is available, an instance of UIAlertView is presented to the user informing them of the newer version, and giving them the option to update the application.

• The left picture forces the user to update the app.
• The right picture gives the user the option to update the app.
• This option is configurable in Harpy.h.

1. Copy the 'Harpy' folder into your Xcode project. The following files will be added:

   1. Harpy.h
   2. Harpy.m

2. Import Harpy.h into your AppDelegate or Pre-Compiler Header (.pch)

3. Configure the 5 static variables in HarpyConstants.h

   • You can remove the #warning in Harpy.h after customizing those variables.

4. In your AppDelegate.m, add [Harpy checkVersion] after calling makeKeyAndVisible:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
	// Customization on application launch
	
	…
	
	// Present Window
	[self.window makeKeyAndVisible]
	
	/*  
		Check AppStore for your application's current version. If newer version exists, prompt user.
		Declare immediatley after you call makeKeyAndVisible on your UIWindow iVar
	*/
	[Harpy checkVersion] 
}

And you're all set!

• As of 2.0.0, no extra configuraiton needs be performed to avoid having the AppStore reviewer see the alert.

• Moved customizable strings to new file, HarpyConstants.h

• Aaron Brager in v1.5.0
• Claas Lange in v2.0.0
• Josh T. Brown in v2.0.0
• Pius Uzamere in v1.0.1

Created by Arthur Ariel Sabintsev