DKImagePickerController

Description

It's a Facebook style Image Picker Controller by Swift. It uses DKCamera instead of UIImagePickerController since the latter cannot be Integrated into another container, and it will raise a warning Snapshotting ... or snapshot after screen updates. in iOS 8.

Features

• Supports both single and multiple selection.
• Supports filtering albums and sorting by type.
• Supports landscape and iPad and orientation switching.
• Supports iCloud.
• Supports UIAppearance.
• Customizable camera.
• Customizable UI.
• Customizable UICollectionViewLayout.
• Supports footer view.
• Supports inline mode.

Requirements

• iOS 8.0+
• ARC
• Swift 4 and Xcode 9

Installation

iOS 8 and newer

DKImagePickerController is available on CocoaPods. Simply add the following line to your podfile:

# For latest release in cocoapods
pod 'DKImagePickerController'

iOS 7.x

The 3.x aren't supported before iOS 8. If you want to support iOS 7, you can look at the 2.4.3 branch that uses ALAssetsLibrary instead of using Photos.

To use Swift libraries on apps that support iOS 7, you must manually copy the files into your application project. CocoaPods only supports Swift on OS X 10.9 and newer, and iOS 8 and newer.

Swift 3.*

For Swift 3.*, use version < 3.8.0

Swift 2.2

For Swift 2.2, use version <= 3.3.4

Swift 2.3

For Swift 2.3, use version = 3.3.5 or the Feature/Swift2.3 branch

Getting Started

Initialization and presentation

let pickerController = DKImagePickerController()

pickerController.didSelectAssets = { (assets: [DKAsset]) in
    print("didSelectAssets")
    print(assets)
}

self.presentViewController(pickerController, animated: true) {}

Customizing

/// Forces selection of tapped image immediately.
public var singleSelect = false
    
/// The maximum count of assets which the user will be able to select.
public var maxSelectableCount = 999

/// Set the defaultAssetGroup to specify which album is the default asset group.
public var defaultAssetGroup: PHAssetCollectionSubtype?

/// The types of PHAssetCollection to display in the picker.
public var assetGroupTypes: [PHAssetCollectionSubtype] = [
    .SmartAlbumUserLibrary,
    .SmartAlbumFavorites,
    .AlbumRegular
    ]

/// Set the showsEmptyAlbums to specify whether or not the empty albums is shown in the picker.
public var showsEmptyAlbums = true

/// The type of picker interface to be displayed by the controller.
public var assetType: DKImagePickerControllerAssetType = .AllAssets

/// The predicate applies to images only.
public var imageFetchPredicate: NSPredicate?

/// The predicate applies to videos only.
public var videoFetchPredicate: NSPredicate?

/// If sourceType is Camera will cause the assetType & maxSelectableCount & allowMultipleTypes & defaultSelectedAssets to be ignored.
public var sourceType: DKImagePickerControllerSourceType = .Both

/// Whether allows to select photos and videos at the same time.
public var allowMultipleTypes = true

/// If YES, and the requested image is not stored on the local device, the Picker downloads the image from iCloud.
public var autoDownloadWhenAssetIsInCloud = true

/// Determines whether or not the rotation is enabled.
public var allowsLandscape = false

/// The callback block is executed when user pressed the cancel button.
public var didCancel: (() -> Void)?
public var showsCancelButton = false

/// The callback block is executed when user pressed the select button.
public var didSelectAssets: ((assets: [DKAsset]) -> Void)?

/// It will have selected the specific assets.
public var defaultSelectedAssets: [DKAsset]?

/// allow swipe to select images.
public var allowSwipeToSelect: Bool = false

public var inline: Bool = false

/// Limits the maximum number of objects returned in the fetch result, a value of 0 means no limit.
public var fetchLimit = 0

public var selectedChanged: (() -> Void)?

Exporting to file

/**
    Writes the image in the receiver to the file specified by a given path.
*/
public func writeImageToFile(path: String, completeBlock: (success: Bool) -> Void)

/**
    Writes the AV in the receiver to the file specified by a given path.

    - parameter presetName:    An NSString specifying the name of the preset template for the export. See AVAssetExportPresetXXX.
*/
public func writeAVToFile(path: String, presetName: String, completeBlock: (success: Bool) -> Void)

Camera customization

You can give a class that implements the DKImagePickerControllerUIDelegate protocol to customize camera.
For example, see CustomCameraUIDelegate.

UI customization

For example, see CustomUIDelegate.

Layout customization

For example, see CustomLayoutUIDelegate.

Conforms UIAppearance protocol

You can easily customize the appearance of navigation bar using the appearance proxy.

UINavigationBar.appearance().titleTextAttributes = [
    NSFontAttributeName : UIFont(name: "Optima-BoldItalic", size: 21)!,
    NSForegroundColorAttributeName : UIColor.redColor()
]

Inline

let pickerController = DKImagePickerController()
pickerController.inline = true
pickerController.fetchLimit = 10
pickerController.UIDelegate = CustomInlineLayoutUIDelegate()
pickerController.assetType = .allPhotos
pickerController.sourceType = .photo

Please see my demo project.

How to use in Objective-C

If you use CocoaPods

• Adding the following two lines into your Podfile:

  pod 'DKImagePickerController'
  use_frameworks!

• Importing it into your Objective-C file:

  #import <DKImagePickerController/DKImagePickerController-Swift.h>

If you use it directly in your project

See also:Swift and Objective-C in the Same Project

• Drag and drop the DKCamera and DKImageManager and DKImagePickerController to your project

• Importing it into your Objective-C file:

  #import "YourProductModuleName-Swift.h"

---

then you can:

DKImagePickerController *pickerController = [DKImagePickerController new];
pickerController.assetType = DKImagePickerControllerAssetTypeAllAssets;
pickerController.showsCancelButton = NO;
pickerController.showsEmptyAlbums = YES;
pickerController.allowMultipleTypes = YES;
pickerController.defaultSelectedAssets = @[];
pickerController.sourceType = DKImagePickerControllerSourceTypeBoth;
//  pickerController.assetGroupTypes    // unavailable
//  pickerController.defaultAssetGroup  // unavailable

 [pickerController setDidSelectAssets:^(NSArray * __nonnull assets) {
     NSLog(@"didSelectAssets");
 }];
 
 [self presentViewController:pickerController animated:YES completion:nil];

Localization

It has been supported languages so far:

• en.lproj
• es.lproj
• da.lproj
• de.lproj
• fr.lproj
• hu.lproj
• ja.lproj
• ko.lproj
• nb-NO.lproj
• pt_BR.lproj
• ru.lproj
• tr.lproj
• ur.lproj
• vi.lproj
• ar.lproj
• it.lproj
• zh-Hans.lproj
• zh-Hant.lproj

If you want to add new language, pull request or issue!

---

You can merge your branch into the develop branch. Any Pull Requests to be welcome!!!

Change Log

3.8.0 (2017-09-24)

Full Changelog

• Swift 4.

• Fixed #380.

• Fixed #381.

• Fixed #374.

• Handle iOS 11 BarButtonItems bug.

• In iOS 10.0, use AVCapturePhotoOutput instead AVCaptureStillImageOutput.

License

DKImagePickerController is released under the MIT license. See LICENSE for details.