iOS
How to install Preventor iOS SDK
Minimum target: iOS 13.0.
To always use the latest release, add the following to your Podfile:
pod 'PreventorSDK'
Alternatively, pin to a specific version (e.g. 0.2.2):
pod 'PreventorSDK', '2.1.0'
pod install
import PackageDescription
let package = Package(
name: "YourTestProject",
platforms: [
.iOS(.v13),
],
dependencies: [
.package(name: "PreventorSDK", url: "https://github.com/preventorid/button-ios-sdk.git", from: "2.1.0)
],
targets: [
.target(name: "YourTestProject", dependencies: ["PreventorSDK"])
]
)
- 1.Using Xcode go to File > Swift Packages > Add Package Dependency
- 2.
- 3.Click on next and select the project target
- 4.Don't forget to set
DEAD_CODE_STRIPPING = NO
in yourBuild Settings
(https://bugs.swift.org/plugins/servlet/mobile#issue/SR-11564)
For integration, you need to configure the pre-padding shown below. You must first implement the
PSDKConfig
structure.self.config = PSDKConfig(flowID: "YOUR_FLOW_ID",
cifCode: "YOUR_CIFCODE",
apiKey: "YOUR_API_KEY",
tenant: "YOUR_TENANT",
env: "YOUR_ENV",
banknu: "YOUR_BANKNU",
secret: "YOUR_CLIENT_SECRET",
invitation: "YOUR_INVITATION_ID",
broker: "YOUR_BROKER")
If the cifCode is empty or nil, a unique code is assigned.
Value | Description |
---|---|
YOUR_FLOW_ID | Defines the biometric process |
UNIQUE_CUSTOMER_CODE | Is the unique customer profile code. |
YOUR_API_KEY | Your provided apikey. |
YOUR_CLIENT_SECRET | Your provided clientsecret. |
YOUR_TENANT | Your provided tenant. |
YOUR_BANKNU | Your provided banknu. |
YOUR_ENV | Your provided env. |
YOUR_INVITATION_ID | Your invitation ID |
YOUR_BROKER | Your broker |
To initialize the SDK, you need to call the initialize(config: PSDKConfig) method:
self.config = PSDKConfig(flowID: "YOUR_FLOW_ID",
cifCode: "YOUR_CIFCODE",
apiKey: "YOUR_API_KEY",
tenant: "YOUR_TENANT",
env: "YOUR_ENV",
banknu: "YOUR_BANKNU",
secret: "YOUR_CLIENT_SECRET",
invitation: "YOUR_INVITATION_ID",
broker: "YOUR_BROKER")
PSDK.shared.initialize(config: config)
To start a new verification, you first need to create the
PreventorButton
Two simple steps to get the button running:
- 1.Drag a new button on your storyboard and give it your desired constraints.
- 2.Subclass the button as
PreventorButton
. Ensure that the module also saysPreventorSDK
below the class.

SwiftUI
Swift
import SwiftUI
import PreventorSDK
struct ContentView: View {
@ObservedObject var store: ContentViewModel
let config: PSDKConfig
var body: some View {
PreventorButton()
}
init() {
self.config = PSDKConfig(flowID: "YOUR_FLOW_ID",
cifCode: "YOUR_CIFCODE",
apiKey: "YOUR_API_KEY",
tenant: "YOUR_TENANT",
env: "YOUR_ENV",
banknu: "YOUR_BANKNU",
secret: "YOUR_CLIENT_SECRET",
invitation: "YOUR_INVITATION_ID",
broker: "YOUR_BROKER")
PSDK.shared.initialize(config: config) { isSuccessful in
//your code
}
}
}
class ContentViewModel: ObservableObject, PSDKDelegate {
//YOUR IMPLEMENTATION
func updatePreventorSDKDelegate() {
PSDK.shared.delegate = self
}
func onStart() {
print("onStart")
}
func onFinish(result: PSDKResult) {
print("onFinish")
}
func onError(error: PSDKErrorCode) {
print("error:", error.rawValue)
}
func onSubmitted(result: PSDKResult) {
print("onSubmitted")
}
}
import UIKit
import PreventorSDK
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Add the button with dimensions
let button = UIPreventorButton(frame: CGRect(x: 40, y: 90, width: 300, height: 60))
self.view.addSubview(button)
// Or Add button with autolayout support
let button = UIPreventorButton(frame: .zero)
button.translatesAutoresizingMaskIntoConstraints = false
self.view.addSubview(button)
let buttonConstraints = [
button.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 50.0),
button.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -50.0),
button.topAnchor.constraint(lessThanOrEqualTo: self.view.topAnchor, constant: 60.0),
button.heightAnchor.constraint(equalToConstant: 40),
]
NSLayoutConstraint.activate(buttonConstraints)
updatePreventorSDKDelegate()
}
}
extension ViewController: PSDKDelegate {
//YOUR IMPLEMENTATION
func updatePreventorSDKDelegate() {
PSDK.shared.delegate = self
}
func onStart() {
print("onStart")
}
func onFinish(result: PSDKResult) {
print("onFinish")
}
func onError(error: PSDKErrorCode) {
print("error:", error.rawValue)
}
func onSubmitted(result: PSDKResult) {
print("onSubmitted")
}
}
To start a check, just click the PreventorButton

If you made it until here, you've successfully installed the Preventor SDK for iOS. Now let's adjust your last settings and start your first verification.
Please add the following permissions to your app's
Info.plist
, so that the Preventor iOS SDK can access a user's camera to run a verification. You can do this in the property list view or by code.Right-click somewhere outside the table and select
Add Row
. Now add the entries like below.Or if you prefer to do this step with code, right-click on
Info.plist
and select Open As -> Source Code. Add the lines below somewhere inside the <dict> </dict>
<!-- permission strings to be include in info.plist -->
<key>NSCameraUsageDescription</key>
<string>Please give us access to your camera, to complete the verification.</string>
<key>NSLocationWhenInUseUsageDescription</key>
<string>Please give us access to your location to complete the verification.</string>
<key>NSLocationWhenInUseUsageDescription</key>
<string>Please give us access to your location to complete the verification.</string>
<key>NSPhotoLibraryUsageDescription</key>
<string>Please give us access to your photo library to verify you.</string>
<key>NFCReaderUsageDescription</key>
<string>Give us NFC access to complete verification.</string>
<key>com.apple.developer.nfc.readersession.formats</key>
<array>
<string>TAG</string>
</array>
<key>com.apple.developer.nfc.readersession.iso7816.select-identifiers</key>
<array>
<string>A0000002471001</string>
<string>E80704007F00070302</string>
<string>A000000167455349474E</string>
<string>A0000002480100</string>
<string>A0000002480200</string>
<string>A0000002480300</string>
<string>A00000045645444C2D3031</string>
</array>
You have successfully finished setting up the
Preventor
iOS SDK! 🎉If you want to add your own customization you can use the following methods
Method | Description |
---|---|
setNavigationTitle | Use this method to change the navigation title of the SDK. |
To find out if a user started, completed, canceled or failed the verification process, you can implement the following delegate methods:
Method | Description |
---|---|
onStart | This callback method is triggered once a user starts the verification flow. |
onSubmitted | Method that is being called once verification data is submitted to Preventor. |
onFinish | Method that is being called once a user clicks the "Finish" button. |
onError | This callback method fires when a user canceled the verification flow, the verification ended with an error, or the user performed an incorrect process. You can use this to find out the reason for the error. Error codes: CANCELLED_BY_USER BIOMETRIC_AUTHENTICATION_FAILED BAD_STEP_BY_USER MISSING_PARAMETERS |
onNextStep | This callback method is called when the SDK is ready to move on to the next check. |
SwiftUI
Swift
import SwiftUI
import PreventorSDK
struct ContentView: View {
@ObservedObject var store: ContentViewModel
let config: PSDKConfig
var body: some View {
PreventorButton()
}
init() {
self.config = PSDKConfig(flowID: "YOUR_FLOW_ID",
cifCode: "YOUR_CIFCODE",
apiKey: "YOUR_API_KEY",
tenant: "YOUR_TENANT",
env: "YOUR_ENV",
banknu: "YOUR_BANKNU",
secret: "YOUR_CLIENT_SECRET",
invitation: "YOUR_INVITATION_ID",
broker: "YOUR_BROKER")
PSDK.shared.initialize(config: config) { isSuccessful in
//your code
}
}
}
class ContentViewModel: ObservableObject, PSDKDelegate {
//YOUR IMPLEMENTATION
func updatePreventorSDKDelegate() {
PSDK.shared.delegate = self
}
func onStart() {
print("onStart")
}
func onFinish(result: PSDKResult) {
print("onFinish")
}
func onError(error: PSDKErrorCode) {
print("error:", error.rawValue)
}
func onSubmitted(result: PSDKResult) {
print("onSubmitted")
}
}
import UIKit
import PreventorSDK
class ViewController: UIViewController{
@IBOutlet weak var PreventorButton: UIPreventorButton!
override func viewDidLoad() {
super.viewDidLoad()
// Add the button with dimensions
let button = UIPreventorButton(frame: CGRect(x: 40, y: 90, width: 300, height: 60))
self.view.addSubview(button)
// Or Add button with autolayout support
let button = UIPreventorButton(frame: .zero)
button.translatesAutoresizingMaskIntoConstraints = false
self.view.addSubview(button)
let buttonConstraints = [
button.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 50.0),
button.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -50.0),
button.topAnchor.constraint(lessThanOrEqualTo: self.view.topAnchor, constant: 60.0),
button.heightAnchor.constraint(equalToConstant: 40),
]
NSLayoutConstraint.activate(buttonConstraints)
let config = PSDKConfig(flowID: "YOUR_FLOW_TYPE",
cifCode: "YOUR_CIFCODE",
apiKey: "YOUR_API_KEY",
tenant: "YOUR_TENANT",
env: "YOUR_ENV",
banknu: "YOUR_BANKNU",
secret: "YOUR_CLIENT_SECRET")
updatePreventorSDKDelegate()
PSDK.shared.initialize(config: config)
}
}
extension ViewController: PSDKDelegate {
//YOUR IMPLEMENTATION
func updatePreventorSDKDelegate() {
PSDK.shared.delegate = self
}
func onStart() {
print("onStart")
}
func onFinish(result: PSDKResult) {
print("onFinish")
}
func onError(error: PSDKErrorCode) {
print("error:", error.rawValue)
}
func onSubmitted(result: PSDKResult) {
print("onSubmitted")
}
}
Last modified 1mo ago