转载

[iOS] EPSignature：通过手触或 Apple Pencil 签名的组件

EPSignature

Signature component for iOS written in Swift

Preview

[iOS] EPSignature：通过手触或 Apple Pencil 签名的组件

Installation

Cocoapods

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

pod "EPSignature"

Carthage

To integrate EPSignature into your Xcode project using Carthage, specify it in your Cartfile:

github "ipraba/EPSignature"

Manual Installation

Just drag and drop the files in Pod/Classes folder into your project

Features

User can draw the signature either by finger or by apple pencil
Ability to save the signature as default signature which can be retrieved later
Ability to load the saved signature
Works on both orientations(portrait and landscape)
Works on both iPhone and iPad devices
Also can be embedded in any container view
Can extract the signature as Image
Draws smoothly

Initialization of EPSignatureViewController

let signatureVC = EPSignatureViewController(signatureDelegate: self, showsDate: true, showsSaveSignatureOption: true) signatureVC.subtitleText = "I agree to the terms and conditions" signatureVC.title = "John Doe" let nav = UINavigationController(rootViewController: signatureVC) presentViewController(nav, animated: true, completion: nil)

Note: You can also embed the signature view in any one of the container using the EPSignatureView

Properties of EPSignatureViewController

Properties	Description
`showsDate`	`Bool value that allows to show the date while signing`
`showsSaveSignatureOption`	`Bool value that allows the user to save the signature for future use`
`signatureDelegate`	`Delegate listening for events`
`subtitleText`	`Subtitle text for signature(Eg: Sign here)`
`tintColor`	`Tint color for the view controller. Applies for barbuttons, switches and actionsheet`

Properties of EPSignatureView

Properties	Description
`strokeColor`	`Stroke color of the signature`
`strokeWidth`	`Stroke width of the signature`
`isSigned`	`Bool value checks whether the user has signed or not`

EPSignatureViewController Delegates

 func epSignature(_: EPSignature.EPSignatureViewController, didCancel error: NSError)  func epSignature(_: EPSignature.EPSignatureViewController, didSigned signatureImage: UIImage, boundingRect: CGRect)

Note: boundingRect will contain the bounds of the signed image retrieved. Crop using this rect to make shorter and small signature images