In-App Purchasing with iOS 7- Consumable and Non-Consumables

In this video we will import the StoreKit framework, create the InAppManager class (and InAppObserver class, though we don't use it yet), then begin to initialize the InAppManager as a singleton. Have your In-App Product ID's ready which you should have already setup in iTunes Connect.

In this tutorial we will populate our purchaseableProducts array with the in-app products from the App Store we created earlier. It is highly recommended you begin testing on your actual device at this point. By the end of this lesson you should receive back data from the store for each product (localized title, price, ID).

In this video we will write the InAppObserver class which is a rather etheric class, used to simply "observe" transactions and call methods based on the result (whether a transaction is restored, completed, or cancelled).

In this video we will write methods in the InAppManager class to handle buying our products and providing content afterwards. NSNotifications will be called (but received later in the Quick Start section) to handle unlocking actual content.

In this tutorial we will finish up our InAppManager class and write the methods used to deal with failed transactions and restoring transactions.

In this video we will import the already-written InAppManager and InAppObserver classes to a different project, then add the StoreKit framework to that new project, as well as initiate the singleton. We will come back to this project later to add buttons to purchase particular products.

In this video we will add extend the InAppManager class to use more product ID's. This is optional viewing if you only have 1 or 2 in-app purchases.

In this tutorial, we will add two UIButtons (to our Sprite Kit scene). Each button can be used to buy the in-app purchase OR make use of it by calling a different method if the purchase has already been bought. We will also vary the button's title if the purchase has already been made or not. And we will receive NSNotifications in this class now to do something when the purchase has been made (or restored).

In this video we will look at styling and placing the buttons differently for the iPhone or iPad.

In this video we will quickly take the UIButton code from the Sprite Kit Based project, and create a new UIView (called AnyOldView), add it from the ViewController and display our purchase screen that way.

In this tutorial we will mostly look at what to do for Consumable purchases, by creating an in-game monetary system. We will create a variable for using purchased "coins", and a hypothetical catalog of products that could be unlocked using those coins. Using the same UIButtons created in the last section, we can purchase multiple increments of 10,000 coins and save our in-game money to the NSUserDefaults to use anytime.

If you plan to sell Non-Consumable purchases be sure to include a Restore button in the project. All this button needs to do is call....

[[InAppManager sharedManager] restoreCompletedTransactions];

...and the rest happens automatically. Your app WILL get rejected with a Restore button though.

Here you can download the source projects for the entire lesson. Included is a version using the Sprite Kit template and another using the template for Single View Application (this one includes a UIView class to contain the UIButtons). The Sprite Kit template has some extra code for handing consumable purchases.