AssetsPickerViewController

Customizable assets picker controller that supports selecting multiple photos and videos, fully written in Swift.

Comment

AssetsPickerViewController acts like Photos App in iOS.

If you found any bugs - even in develop branch, do not hesitate raise an issue for it.

Any advice, suggestions, and pull requests for new feature will be greatly appreciated.

Screenshots

iOS friendly UI for Album & Asset

iPad Support

Keeps focusing indexes during orientation change.

Handles empty or no permisson cases.

Customizable Album & Asset Layout

3D Touch to Preview

Features Done

iOS friendly UI for album & photo controllers
select album
select multiple photos and videos
realtime synchronization for library change in albums & photos
option to show/hide empty albums
option to show/hide "Hidden" album
customizable album cell
customizable album sorting by PHFetchOptions or filter block
customizable album filtering by PHFetchOptions or filter block
customizable asset cell
customizable asset sorting by PHFetchOptions
customizable asset filtering by PHFetchOptions
iPad support
force(3D) touch to preview - (still, live photo, and video)
support many languages(German, French, Spanish, Chinese, Japanese, Arabic, Spanish, Korean, Indonesian, Russian, Turkish, Italian, etc)

Features To-do

single select mode with crop

Basic Usage

To run the example project, clone the repo, and run pod install from the Example directory first.

// to show
let picker = AssetsPickerViewController()
picker.pickerDelegate = self
present(picker, animated: true, completion: nil)

// to handle
extension SimpleExampleController: AssetsPickerViewControllerDelegate {
    
    func assetsPickerCannotAccessPhotoLibrary(controller: AssetsPickerViewController) {}
    func assetsPickerDidCancel(controller: AssetsPickerViewController) {}
    func assetsPicker(controller: AssetsPickerViewController, selected assets: [PHAsset]) {
        // do your job with selected assets
    }
    func assetsPicker(controller: AssetsPickerViewController, shouldSelect asset: PHAsset, at indexPath: IndexPath) -> Bool {
        return true
    }
    func assetsPicker(controller: AssetsPickerViewController, didSelect asset: PHAsset, at indexPath: IndexPath) {}
    func assetsPicker(controller: AssetsPickerViewController, shouldDeselect asset: PHAsset, at indexPath: IndexPath) -> Bool {
        return true
    }
    func assetsPicker(controller: AssetsPickerViewController, didDeselect asset: PHAsset, at indexPath: IndexPath) {}
}

Bonus

Basic

To hide empty albums,

pickerConfig.albumIsShowEmptyAlbum = false

To show "Hidden" albums,

pickerConfig.albumIsShowHiddenAlbum = true

Appearence

To apply custom album cell,

pickerConfig.albumCellType = CustomAlbumCell.classForCoder()
// and implement your own UICollectionViewCell which conforms to AssetsAlbumCellProtocol

To apply custom asset cell,

pickerConfig.assetCellType = CustomAssetCell.classForCoder()
// and implement your own UICollectionViewCell which conforms to AssetsPhotoCellProtocol

Sorting

To sort albums by PHFetchOptions,

let options = PHFetchOptions()
options.sortDescriptors = [NSSortDescriptor(key: "estimatedAssetCount", ascending: true)]
        
pickerConfig.albumFetchOptions = [
    .smartAlbum: options
]

To sort by block for a certain reason,

pickerConfig.albumComparator = { (albumType, leftEntry, rightEntry) -> Bool in
    // return: Is leftEntry ordered before the rightEntry?
    switch albumType {
    case .smartAlbum:
        return leftEntry.album.assetCollectionSubtype.rawValue < rightEntry.album.assetCollectionSubtype.rawValue
    case .album:
        return leftEntry.result.count < rightEntry.result.count     // ascending order by asset count
    case .moment:
        return true
    }
}

To sort assets by PHFetchOptions,

let options = PHFetchOptions()
options.sortDescriptors = [
    NSSortDescriptor(key: "pixelWidth", ascending: true),
    NSSortDescriptor(key: "pixelHeight", ascending: true)
]

pickerConfig.assetFetchOptions = [
    .smartAlbum: options
]

Filtering

To filter albums by PHFetchOptions,

let options = PHFetchOptions()
options.predicate = NSPredicate(format: "estimatedAssetCount = 0")
pickerConfig.albumFetchOptions = [.smartAlbum: options]

To filter albums by block for a certain reason,

// return true to include, false to discard.
let smartAlbumFilter: ((PHAssetCollection, PHFetchResult<PHAsset>) -> Bool) = { (album, fetchResult) in
    // filter by album object
    if album.assetCollectionSubtype == .smartAlbumBursts { return false }
    if album.assetCollectionSubtype == .smartAlbumTimelapses { return false }
    if album.assetCollectionSubtype == .smartAlbumFavorites { return false }
            
    // filter by fetch result
    if fetchResult.count > 50 {
        return true     // only shows albums that contains more than 50 assets
    } else {
        return false    //
    }
}
pickerConfig.albumFilter = [
    .smartAlbum: smartAlbumFilter
]

To filter assets by PHFetchOptions,

let options = PHFetchOptions()
options.predicate = NSPredicate(format: "mediaType = %d", PHAssetMediaType.video.rawValue)
options.sortDescriptors = [NSSortDescriptor(key: "duration", ascending: true)]
        
pickerConfig.assetFetchOptions = [
    .smartAlbum: options,
    .album: options
]

Requirements & Dependency

Xcode8, Swift 3, iOS 9.0

Uses PureLayout for creating UI inside library. Thanks to PureLayout development team for doing such a beautiful job.

Installation

AssetsPickerViewController is available through CocoaPods. To install it, simply add the following line to your Podfile:

For Swift 3,

pod 'AssetsPickerViewController', :git => 'https://github.com/DragonCherry/AssetsPickerViewController', :branch => 'swift3'

For Swift 4,

pod 'AssetsPickerViewController', '~> 2.0'

Author

DragonCherry, dragoncherry@naver.com

License

AssetsPickerViewController is available under the MIT license. See the LICENSE file for more info.

MIT License

Copyright (c) 2017 DragonCherry

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

License

isabella232/AssetsPickerViewController

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