ericnpc-zz/ALCameraViewController

A camera view controller with custom image picker and image cropping.

ALCameraViewController

A camera view controller with custom image picker and image cropping. Written in Swift.

Features

• Front facing and rear facing camera support
• Simple and clean look
• Custom image picker with permission checking
• Image cropping (square only)
• Flash light support

Installation & Requirements

This project requires Xcode 8.3 to run and compiles with swift 3.1

Note: This library makes use of the AVFoundation camera API's which are unavailable on the iOS simulator. You'll need a real device to run it.

ALCameraViewController is available on CocoaPods. Add the following to your Podfile:

pod 'ALCameraViewController'

Usage

To use this component couldn't be simpler. Add import ALCameraViewController to the top of you controller file.

In the viewController

let croppingEnabled = true
let cameraViewController = CameraViewController(croppingEnabled: croppingEnabled) { [weak self] image, asset in
	// Do something with your image here.
	// If cropping is enabled this image will be the cropped version

	self?.dismiss(animated: true, completion: nil)
}

present(cameraViewController, animated: true, completion: nil)

You can also instantiate the image picker component by itself as well.

let croppingEnabled = true

/// Provides an image picker wrapped inside a UINavigationController instance
let imagePickerViewController = CameraViewController.imagePickerViewController(croppingEnabled: croppingEnabled) { [weak self] image, asset in
		// Do something with your image here.
	 	// If cropping is enabled this image will be the cropped version

    self?.dismiss(animated: true, completion: nil)
}

present(imagePickerViewController, animated: true, completion: nil)

For more control you can create it directly.

Note: This approach requires some familiarity with the PhotoKit library provided by apple

import Photos

let imagePickerViewController = PhotoLibraryViewController()
imagePickerViewController.onSelectionComplete = { asset in

		// The asset could be nil if the user doesn't select anything
		guard let asset = asset else {
			return
		}

    // Provides a PHAsset object
		// Retrieve a UIImage from a PHAsset using
		let options = PHImageRequestOptions()
    options.deliveryMode = .highQualityFormat
    options.isNetworkAccessAllowed = true

		PHImageManager.default().requestImage(for: asset, targetSize: PHImageManagerMaximumSize, contentMode: .aspectFill, options: options) { image, _ in
        if let image = image {
						// Do something with your image here
        }
    }
}

present(imagePickerViewController, animated: true, completion: nil)

License

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