forked from shadowfacts/Tusker
Show assets immediately after granting permissions
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parent
edd89450aa
commit
a896573a5e
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@ -69,6 +69,7 @@ class AssetCollectionViewController: UICollectionViewController {
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navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .done, target: self, action: #selector(donePressed))
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collectionView.alwaysBounceVertical = true
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collectionView.allowsMultipleSelection = true
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collectionView.register(UINib(nibName: "AssetCollectionViewCell", bundle: .main), forCellWithReuseIdentifier: reuseIdentifier)
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collectionView.register(UINib(nibName: "ShowCameraCollectionViewCell", bundle: .main), forCellWithReuseIdentifier: cameraReuseIdentifier)
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@ -97,19 +98,6 @@ class AssetCollectionViewController: UICollectionViewController {
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}
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})
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let options = PHFetchOptions()
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options.sortDescriptors = [NSSortDescriptor(key: "creationDate", ascending: false)]
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fetchResult = fetchAssets(with: options)
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var snapshot = NSDiffableDataSourceSnapshot<Section, Item>()
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snapshot.appendSections([.assets])
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var items: [Item] = [.showCamera]
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fetchResult.enumerateObjects { (asset, _, _) in
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items.append(.asset(asset))
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}
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snapshot.appendItems(items)
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dataSource.apply(snapshot, animatingDifferences: false)
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collectionView.allowsMultipleSelection = true
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setEditing(true, animated: false)
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updateItemsSelectedCount()
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@ -122,6 +110,12 @@ class AssetCollectionViewController: UICollectionViewController {
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}
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}
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override func viewWillAppear(_ animated: Bool) {
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super.viewWillAppear(animated)
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loadAssets()
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}
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override func viewWillLayoutSubviews() {
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super.viewWillLayoutSubviews()
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@ -137,6 +131,40 @@ class AssetCollectionViewController: UICollectionViewController {
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}
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}
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private func loadAssets() {
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switch PHPhotoLibrary.authorizationStatus(for: .readWrite) {
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case .notDetermined:
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PHPhotoLibrary.requestAuthorization(for: .readWrite) { (_) in
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self.loadAssets()
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}
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return
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case .restricted, .denied:
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// todo: better UI for this
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return
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case .authorized, .limited:
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// todo: show "add more" button for limited access
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break
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@unknown default:
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// who knows, just try anyways
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break
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}
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let options = PHFetchOptions()
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options.sortDescriptors = [NSSortDescriptor(key: "creationDate", ascending: false)]
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fetchResult = fetchAssets(with: options)
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var snapshot = NSDiffableDataSourceSnapshot<Section, Item>()
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snapshot.appendSections([.assets])
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var items: [Item] = [.showCamera]
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fetchResult.enumerateObjects { (asset, _, _) in
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items.append(.asset(asset))
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}
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snapshot.appendItems(items)
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dataSource.apply(snapshot, animatingDifferences: false)
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}
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open func fetchAssets(with options: PHFetchOptions) -> PHFetchResult<PHAsset> {
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return PHAsset.fetchAssets(with: options)
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}
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