问题
My app takes some videos and pictures and stores them in the Application Home/Documents folder. I want to create a gallery that will open and display (and playback) these items. I looked into MPMediaPickerController and it looks like the only option for data source there is the Photos Album.
It looks like I will have to go with creating UICollectionView. Is this the right way to do this or is there another way similar to MPMediaPickerController but with setting the source to an array of data objects?
回答1:
The best way to do it is use your own implementation UICollectionView. MPMediaPickerController mainly works for media related(especially for songs and videos)
Since you have images and videos just use NSFilemanager to get the files in Documents Directory and pass the information to UICollectionView datasource and handle the touch actions on the UICollectionView didSelect methods.
来源：https://stackoverflow.com/questions/33705008/create-a-gallery-for-local-app-content-in-ios