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Manual Automatic Post Refresh
Instagram Firebase
In today's lesson, we're going to cover the topic of implementing an easy way to refresh our feed using a UIRefreshControl. This component allows us to present a UIActivityIndicatorView when we drag our UICollectionView down to refresh. Next, we'll look at how to automatically refresh our home feed every time we upload a new post to Firebase Database. For this to work, we'll look at implementing NotificationCenter observers.

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