Learn how to make your app's data show up in Notification Center in this iOS 8 today extension tutorial!

iOS 8 introduces a new concept called App Extensions: a way for you to share your app’s functionality with other apps, with to the OS itself.

One of these types of extensions are Today Extensions, also known as Widgets. These allow you to present information in the Notification Center, which can be a great way to provide immediate and up-to-date information that the user is interested in.

In this tutorial, you’ll write a Today Extension that renders the current market price of a Bitcoin based on the United States Dollar.

Read full tutorial on raywenderlich.com

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