GalleryViewModel

class GalleryViewModel(application: Application) : AndroidViewModel
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ViewModel that provides two way data bindings for images stored in the internal gallery.

See also

MVVM Architecture For more information about how this software architectural pattern works.

Constructors

GalleryViewModel
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fun GalleryViewModel(application: Application)
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An instance of the current Application

Types

Factory
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internal class Factory(application: Application) : ViewModelProvider.Factory
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Factory to initiate this GalleryViewModel

Functions

deleteImagePair
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fun deleteImagePair(imagesToDelete: ArrayList<File>)
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Deletes an image pair from images and the external file directory.

fileBelongsToImageArrayItem
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private fun fileBelongsToImageArrayItem(file: File, item: ArrayList<File>): Boolean
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Helper function to check whether a file is in an item

getImages
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fun getImages(): LiveData<ArrayList<ArrayList<File>>>
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Getter that returns images as MutableLiveData

loadImages
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private fun loadImages(images: MutableLiveData<ArrayList<ArrayList<File>>>)
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Updates images to be the same as the images in the external file directory

reloadImages
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fun reloadImages()
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Calls loadImages to refresh images

Properties

imageDirectory
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private val imageDirectory: File
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Directory of the internal gallery

images
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private val images: MutableLiveData<ArrayList<ArrayList<File>>>
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Data binding for the images stored in the internal gallery