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https://github.com/hyperoslo/BarcodeScanner
:mag_right: A simple and beautiful barcode scanner.
https://github.com/hyperoslo/BarcodeScanner
barcode-scanner camera ios swift ui
Last synced: 3 days ago
JSON representation
:mag_right: A simple and beautiful barcode scanner.
- Host: GitHub
- URL: https://github.com/hyperoslo/BarcodeScanner
- Owner: hyperoslo
- License: other
- Created: 2016-03-18T13:25:19.000Z (over 8 years ago)
- Default Branch: master
- Last Pushed: 2024-07-29T16:11:57.000Z (5 months ago)
- Last Synced: 2024-08-17T14:02:40.041Z (4 months ago)
- Topics: barcode-scanner, camera, ios, swift, ui
- Language: Swift
- Homepage: http://hyper.no
- Size: 1.93 MB
- Stars: 1,679
- Watchers: 53
- Forks: 387
- Open Issues: 24
-
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- License: LICENSE.md
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README
[](https://travis-ci.org/hyperoslo/BarcodeScanner)
[](http://cocoadocs.org/docsets/BarcodeScanner)
[](https://github.com/Carthage/Carthage)
[](http://cocoadocs.org/docsets/BarcodeScanner)
[](http://cocoadocs.org/docsets/BarcodeScanner)
## Description
**BarcodeScanner** is a simple and beautiful wrapper around the camera with
barcode capturing functionality and a great user experience.
- [x] Barcode scanning.
- [x] State modes: scanning, processing, unauthorized, not found.
- [x] Handling of camera authorization status.
- [x] Animated focus view and custom loading indicator.
- [x] Torch mode switch.
- [x] Customizable colors, informational and error messages.
- [x] No external dependencies.
- [x] [Demo project](https://github.com/hyperoslo/BarcodeScanner/tree/master/Example/BarcodeScannerExample).
## Table of Contents
* [Usage](#usage)
* [Controller](#controller)
* [Delegates](#delegates)
* [Actions](#actions)
* [Customization](#customization)
* [Installation](#installation)
* [Author](#author)
* [Contributing](#contributing)
* [License](#license)
## Usage
### Controller
To start capturing just instantiate `BarcodeScannerViewController`, set needed
delegates and present it:
```swift
let viewController = BarcodeScannerViewController()
viewController.codeDelegate = self
viewController.errorDelegate = self
viewController.dismissalDelegate = self
present(viewController, animated: true, completion: nil)
```
You can also push `BarcodeScannerViewController` to your navigation stack:
```swift
let viewController = BarcodeScannerViewController()
viewController.codeDelegate = self
navigationController?.pushViewController(viewController, animated: true)
```
### Delegates
**Code delegate**
Use `BarcodeScannerCodeDelegate` when you want to get the captured code back.
```swift
extension ViewController: BarcodeScannerCodeDelegate {
func scanner(_ controller: BarcodeScannerViewController, didCaptureCode code: String, type: String) {
print(code)
controller.reset()
}
}
```
**Error delegate**
Use `BarcodeScannerErrorDelegate` when you want to handle session errors.
```swift
extension ViewController: BarcodeScannerErrorDelegate {
func scanner(_ controller: BarcodeScannerViewController, didReceiveError error: Error) {
print(error)
}
}
```
**Dismissal delegate**
Use `BarcodeScannerDismissalDelegate` to handle "Close button" tap.
**Please note** that `BarcodeScannerViewController` doesn't dismiss itself if
it was presented initially.
```swift
extension ViewController: BarcodeScannerDismissalDelegate {
func scannerDidDismiss(_ controller: BarcodeScannerViewController) {
controller.dismiss(animated: true, completion: nil)
}
}
```
### Actions
When the code is captured `BarcodeScannerViewController` switches to the processing
mode:
While the user sees a nice loading animation you can perform some
background task, for example make a network request to fetch product info based
on the code. When the task is done you have 3 options to proceed:
1. Dismiss `BarcodeScannerViewController` and show your results.
```swift
func scanner(_ controller: BarcodeScannerViewController, didCaptureCode code: String, type: String) {
// Code processing
controller.dismiss(animated: true, completion: nil)
}
```
2. Show an error message and switch back to the scanning mode (for example,
when there is no product found with a given barcode in your database):
```swift
func scanner(_ controller: BarcodeScannerViewController, didCaptureCode code: String, type: String) {
// Code processing
controller.resetWithError(message: "Error message")
// If message is not provided the default message will be used instead.
}
```
3. Reset the controller to the scanning mode (with or without animation):
```swift
func scanner(_ controller: BarcodeScannerViewController, didCaptureCode code: String, type: String) {
// Code processing
controller.reset(animated: true)
}
```
If you want to do continuous barcode scanning just set the `isOneTimeSearch`
property on your `BarcodeScannerViewController` instance to `false`.
### Customization
We styled **BarcodeScanner** to make it look nice, but you can always use public
properties or inheritance to customize its appearance.
**Header**
```swift
let viewController = BarcodeScannerViewController()
viewController.headerViewController.titleLabel.text = "Scan barcode"
viewController.headerViewController.closeButton.tintColor = .red
```
**Please note** that `HeaderViewController` is visible only when
`BarcodeScannerViewController` is being presented.
**Footer and messages**
```swift
let viewController = BarcodeScannerViewController()
viewController.messageViewController.regularTintColor = .black
viewController.messageViewController.errorTintColor = .red
viewController.messageViewController.textLabel.textColor = .black
```
**Camera**
```swift
let viewController = BarcodeScannerViewController()
// Change focus view style
viewController.cameraViewController.barCodeFocusViewType = .animated
// Show camera position button
viewController.cameraViewController.showsCameraButton = true
// Set the initial camera position
viewController.cameraViewController.initialCameraPosition = .front // Default is .back
// Set settings button text
let title = NSAttributedString(
string: "Settings",
attributes: [.font: UIFont.boldSystemFont(ofSize: 17), .foregroundColor : UIColor.white]
)
viewController.cameraViewController.settingButton.setAttributedTitle(title, for: UIControlState())
```
**Metadata**
```swift
// Add extra metadata object type
let viewController = BarcodeScannerViewController()
viewController.metadata.append(AVMetadataObject.ObjectType.qr)
```
## Installation
**BarcodeScanner** is available through [CocoaPods](http://cocoapods.org). To install
it, simply add the following line to your Podfile:
```ruby
pod 'BarcodeScanner'
```
Don't forget to set a `Privacy - Camera Usage Description` in your Info.plist file, else the app will crash with a SIGBART.
In order to quickly try the demo project of a **BarcodeScanner** just run
`pod try BarcodeScanner` in your terminal.
**BarcodeScanner** is also available through [Carthage](https://github.com/Carthage/Carthage).
To install just write into your Cartfile:
```ruby
github "hyperoslo/BarcodeScanner"
```
To install **BarcodeScanner** manually just download and drop `Sources` and
`Images` folders in your project.
## Author
Hyper Interaktiv AS, [email protected]
## Contributing
We would love you to contribute to **BarcodeScanner**, check the [CONTRIBUTING](https://github.com/hyperoslo/BarcodeScanner/blob/master/CONTRIBUTING.md) file for more info.
## License
**BarcodeScanner** is available under the MIT license. See the [LICENSE](https://github.com/hyperoslo/BarcodeScanner/blob/master/LICENSE.md) file for more info.