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https://github.com/CameraKit/camerakit-ios

Library for iOS Camera API. Massively increase performance and ease of use within your next iOS Project.
https://github.com/CameraKit/camerakit-ios

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Library for iOS Camera API. Massively increase performance and ease of use within your next iOS Project.

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README 

        


    

        CameraKit Header

    






    

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CameraKit helps you add reliable camera to your app quickly. Our open source camera platform provides consistent capture results, service that scales, and endless camera possibilities.



With CameraKit you are able to effortlessly do the following: 



- ✅ Ability to extend and create custom sessions.

- ✅ Image and video capture seamlessly working with the same preview session.

- ✅ Automatic system permission handling.

- ✅ Automatic preview scaling.

- ✅ Automatic preview/image/video output orientation handling.

- 📷 Ability to set a custom resolution for capturing photos.

- 📹 Ability to set resolution/frame rate for capturing videos.

- 👱‍ Built-in face detection.

- 📐 Built-in overlay grid.

- 👆 Built-in tap to focus.

- 🔍 Built-in pinch to zoom.

- 📸 Built-in flash toggle for both photos and videos.

- 🤳 Built-in camera position toggle.

- 🖥 Objective-C compatible.



## Sponsored By

Expensify

Buddy.Works



# Installation



## Demo



If you want to test out the demo app first you can clone this repo to your local disk:



```bash

git clone https://github.com/CameraKit/camerakit-ios.git

```



and then navigate to `camerakit-ios` and open the `CameraKit.xcworkspace` file with Xcode. Near the run button select the `CameraKitDemo` scheme, resolve the signing conflicts using your Apple account and then run it on a real device. You cannot do much on a simulator, since we need an actual camera hardware.



## Cocoapods



If you don't have [Cocoapods](https://cocoapods.org/) already installed you can install it by running the code below in a terminal:



```bash

sudo gem install cocoapods

```



If you don't have any `Podfile` run:



```bash

pod init

```



Then open the `Podfile` file in your project and add this line to your app target:



```ruby

pod CameraKit-iOS

```



and it will automatically create a `Podfile` and integrate the pods into the project by creating a separate `.xcworkspace` file. You will open this file in Xcode from now on.



## Carthage



If you don't have [Carthage](https://github.com/Carthage/Carthage) installed run:



```bash

brew install carthage

```



Then create a `Cartfile` and add the following line:



```ruby

github "CameraKit/camerakit-ios"

```



# Code



Before adding our camera related code, make sure you include the permissions needed for your code to work in the app project `Info.plist` file:



```plist



NSCameraUsageDescription



NSMicrophoneUsageDescription



NSPhotoLibraryAddUsageDescription



```



Below is a quick start code sample with session + live camera preview:



```swift

import CameraKit



...



override func viewDidLoad() {

    super.viewDidLoad()



    // Init a photo capture session

    let session = CKFPhotoSession()

    

    // Use CKFVideoSession for video capture

    // let session = CKFVideoSession()

    

    let previewView = CKFPreviewView(frame: self.view.bounds)

    previewView.session = session

}

```



For capturing a image using the `CKFPhotoSession` class use this code below:



```swift

session.capture({ (image, settings) in

    // TODO: Add your code here

}) { (error) in

    // TODO: Handle error

}

```



If you want to record a video using the `CKFVideoSession` class use this code below to start the recording:



```swift

// You can also specify a custom url for where to save the video file

session.record(url: URL(string: ""), { (url) in

    // TODO: Add your code here

}) { (error) in

    // TODO: Handle error

}

```



and end the recording:



```swift

// You can also specify a custom url for where to save the video file

session.stopRecording()

```



You can get the current record status via the `isRecording` property to determine if a recording is in progress or not.



# Session properties and methods



| CKFPhotoSession | CKFVideoSession |

|----------------|----------------|

| `zoom: Double` | `zoom: Double` |

| `resolution: CGSize` | `isRecording: Bool` |

| `cameraPosition: CameraPosition` | `cameraPosition: CameraPosition` |

| `cameraDetection: CameraDetection` | `flashMode: FlashMode` |

| `flashMode: FlashMode` | `start()` |

| `start()` | `stop()` |

| `stop()` | `togglePosition()` |

| `focus(at point: CGPoint)` | `setWidth(_ width: Int, height: Int, frameRate: Int)` |

| `togglePosition()` | `record(url: URL? = nil, _ callback: @escaping (URL) -> Void, error: @escaping (Error) -> Void)` |

| `capture(_ callback: @escaping (UIImage, AVCaptureResolvedPhotoSettings) -> Void, _ error: @escaping (Error) -> Void)` | `stopRecording()` |



# Import into Objective-C projects



Go to `Project Settings`, `Build Settings`, `Always Embed Swift Standard Libraries` and set the value to `Yes`.



Then import the CameraKit framework using:



```objc

@import CameraKit;

```



# Creating custom sessions



CameraKit can be splitted into 2 main pieces: preview and sessions. The sessions are made by extending the base `CKFSession` class. If you want a custom session you can extend the `CKFSession` class and use its static helpers to initialize yours. Or you can also extend the built-in sessions and add custom logic.



```swift

class MyCustomSession: CKFSession {



    public override init() {

        super.init()

        

        do {

            let deviceInput = try CKFSession.captureDeviceInput(type: .backCamera)

            self.session.addInput(deviceInput)

        } catch let error {

            print(error.localizedDescription)

        }

    }



    // TODO: Add your code here

}

```



# License



CameraKit is released under the [MIT License](LICENSE.md).