Create Example App

.github/workflows/main.yml

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+name: iOS Build
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: macos-latest
+    steps:
+    - name: Checkout Code
+      uses: actions/checkout@v2
+
+    - name: Build SwiftUI project
+      run: |
+        xcodebuild -project Example/SwiftUIExample/MobilePaymentsSwiftUIExample.xcodeproj -scheme MobilePaymentsSwiftUIExample -sdk iphoneos -configuration Release SKIP_SETUP_SCRIPT=YES CODE_SIGNING_ALLOWED=NO CODE_SIGNING_REQUIRED=NO CODE_SIGN_IDENTITY=NO

.gitignore

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+## User settings
+xcuserdata/
+.build

Example/README.md

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+# Square Mobile Payments SDK Example App
+
+
+### Assumptions and prerequisites
+
+The example app make the following assumptions:
+
+* You have read the [Mobile Payments SDK "Build on iOS"](https://developer.squareup.com/docs/mobile-payments-sdk/ios) documentation. The example app focuses on demonstrating how the Square Mobile Payments SDK works by using all of the provided user interfaces of the SDK.
+* You have a Square account enabled for payment processing. If you have not
+  enabled payment processing on your account (or you are not sure), visit
+  [squareup.com/activate](https://squareup.com/activate).
+
+
+### Install the required tools
+* Confirm your environment meets the Square Mobile Payments SDK build requirements listed in the [root README] for this repo.
+* Clone this repo (if you have not already):
+  `git clone https://github.com/square/mobile-payments-sdk-ios`

Example/Shared/Config.swift

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+public enum Config {
+     static let squareApplicationID: String? = nil // Replace with your squareApplicationID
+
+    // In a production application you should use your server to obtain an access token and locationID.
+    // For this sample app, we can just authorize Reader SDK using hardcoded values.
+     static let accessToken: String? = nil // Replace with your accessToken
+     static let locationID: String? = nil // Replace with your locationID
+}

Example/Shared/Preview Content/MockMobilePaymentsSDK.swift

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+import SquareMobilePaymentsSDK
+
+class MockMobilePaymentsSDK: NSObject, SDKManager {
+    let authorizationManager: AuthorizationManager
+    let paymentManager: PaymentManager
+    let readCardInfoManager: ReadCardInfoManager
+    let readerManager: ReaderManager
+    let settingsManager: SettingsManager
+
+    init(
+        authorizationManager: AuthorizationManager = MockAuthorizationManager(),
+        paymentManager: PaymentManager = MockPaymentManager(),
+        readCardInfoManager: ReadCardInfoManager = MockReadCardInfoManager(),
+        readerManager: ReaderManager = MockReaderManager(),
+        settingsManager: SettingsManager = MockSettingsManager()
+    ) {
+        self.authorizationManager = authorizationManager
+        self.paymentManager = paymentManager
+        self.readCardInfoManager = readCardInfoManager
+        self.readerManager = readerManager
+        self.settingsManager = settingsManager
+    }
+}
+
+class MockAuthorizationManager: NSObject, AuthorizationManager {
+    let location: Location?
+    var state: AuthorizationState
+
+    init(
+        location: Location? = MockLocation(),
+        state: AuthorizationState = .authorized
+    ) {
+        self.location = location
+        self.state = state
+    }
+
+    func authorize(withAccessToken accessToken: String, locationID: String, completion: @escaping (Error?) -> Void) { }
+    func deauthorize(completion: @escaping () -> Void) { }
+    func add(_ authorizationStateObserver: AuthorizationStateObserver) { }
+    func remove(_ authorizationStateObserver: AuthorizationStateObserver) { }
+}
+
+class MockLocation: NSObject, Location {
+    let id: String
+    let name: String
+    let mcc: String
+    let currency: Currency
+
+    init(
+        id: String = "1",
+        name: String = "My Location",
+        mcc: String = "mcc",
+        currency: Currency = .USD
+    ) {
+        self.id = id
+        self.name = name
+        self.mcc = mcc
+        self.currency = currency
+    }
+}
+
+class MockPaymentManager: NSObject, PaymentManager {
+    var availableCardInputMethods: CardInputMethods
+    let offlinePaymentQueue: OfflinePaymentQueue
+
+    init(
+        availableCardInputMethods: CardInputMethods = .init([.chip, .contactless, .swipe]),
+        offlinePaymentQueue: OfflinePaymentQueue = MockOfflinePaymentQueue()
+    ) {
+        self.availableCardInputMethods = availableCardInputMethods
+        self.offlinePaymentQueue = offlinePaymentQueue
+    }
+
+    func startPayment(
+        _ paymentParameters: PaymentParameters,
+        promptParameters: PromptParameters,
+        from viewController: UIViewController,
+        delegate: PaymentManagerDelegate
+    ) -> PaymentHandle? { nil }
+    func add(_ availableCardInputMethodsObserver: AvailableCardInputMethodsObserver) { }
+    func remove(_ availableCardInputMethodsObserver: AvailableCardInputMethodsObserver) { }
+}
+
+class MockOfflinePaymentQueue: NSObject, OfflinePaymentQueue {
+    func getTotalStoredPaymentsAmount(completion: @escaping (MoneyAmount?, Error?) -> Void) { }
+    func getPayments(_ completion: @escaping ([OfflinePayment], Error?) -> Void) { }
+}
+
+class MockReadCardInfoManager: NSObject, ReadCardInfoManager {
+    func prepareToReadCardInfoOnce(withStoreSwipedCard storeSwipedCard: Bool, shouldReadPreInsertedCard: Bool) { }
+    func cancelReadingCardInfo() { }
+    func add(_ readCardInfoObserver: ReadCardInfoObserver) { }
+    func remove(_ readCardInfoObserver: ReadCardInfoObserver) { }
+}
+
+class MockReaderManager: NSObject, ReaderManager {
+    var readers: [ReaderInfo]
+    var isPairingInProgress: Bool
+
+    init(
+        readers: [ReaderInfo] = [MockReaderInfo()],
+        isPairingInProgress: Bool = false
+    ) {
+        self.readers = readers
+        self.isPairingInProgress = isPairingInProgress
+    }
+
+    func startPairing(with delegate: ReaderPairingDelegate) -> PairingHandle? { nil }
+    func linkTapToPayReader(completion: @escaping (Error?) -> Void) { }
+    func relinkTapToPayReader(completion: @escaping (Error?) -> Void) { }
+    func isTapToPayReaderLinked(completion: @escaping (Bool, Error?) -> Void) { }
+    func isTapToPayReaderSupported() -> Bool { true }
+    func forget(_ readerInfo: ReaderInfo) { }
+    func blink(_ readerInfo: ReaderInfo) { }
+    func retryConnection(_ readerInfo: ReaderInfo) { }
+    func add(_ readerObserver: ReaderObserver) { }
+    func remove(_ readerObserver: ReaderObserver) { }
+}
+
+class MockReaderInfo: NSObject, ReaderInfo {
+    var id: UInt
+    var name: String
+    var serialNumber: String?
+    var model: ReaderModel
+    var supportedInputMethods: CardInputMethods
+    var connectionInfo: ReaderConnectionInfo
+    var firmwareInfo: ReaderFirmwareInfo?
+    var state: ReaderState
+    var batteryStatus: ReaderBatteryStatus?
+    var isBlinkable: Bool
+    var isForgettable: Bool
+    var isConnectionRetryable: Bool
+    var cardInsertionStatus: CardInsertionStatus
+
+    init(
+        id: UInt = 1,
+        name: String = "My Reader",
+        serialNumber: String? = nil,
+        model: ReaderModel = .contactlessAndChip,
+        supportedInputMethods: CardInputMethods = .init([.contactless, .chip]),
+        connectionInfo: ReaderConnectionInfo = MockReaderConnectionInfo(),
+        firmwareInfo: ReaderFirmwareInfo? = nil,
+        state: ReaderState = .ready,
+        batteryStatus: ReaderBatteryStatus? = nil,
+        isBlinkable: Bool = true,
+        isForgettable: Bool = true,
+        isConnectionRetryable: Bool = false,
+        cardInsertionStatus: CardInsertionStatus = .notInserted
+    ) {
+        self.id = id
+        self.name = name
+        self.serialNumber = serialNumber
+        self.model = model
+        self.supportedInputMethods = supportedInputMethods
+        self.connectionInfo = connectionInfo
+        self.firmwareInfo = firmwareInfo
+        self.state = state
+        self.batteryStatus = batteryStatus
+        self.isBlinkable = isBlinkable
+        self.isForgettable = isForgettable
+        self.isConnectionRetryable = isConnectionRetryable
+        self.cardInsertionStatus = cardInsertionStatus
+    }
+}
+
+class MockReaderConnectionInfo: NSObject, ReaderConnectionInfo {
+    var state: ReaderConnectionState
+    var failureInfo: ReaderConnectionFailureInfo?
+
+    init(
+        state: ReaderConnectionState = .connected,
+        failureInfo: ReaderConnectionFailureInfo? = nil
+    ) {
+        self.state = state
+        self.failureInfo = failureInfo
+    }
+}
+
+class MockSettingsManager: NSObject, SettingsManager {
+    let sdkSettings: SDKSettings
+    let paymentSettings: PaymentSettings
+
+    init(
+        sdkSettings: SDKSettings = MockSDKSettings(),
+        paymentSettings: PaymentSettings = MockPaymentSettings()
+    ) {
+        self.sdkSettings = sdkSettings
+        self.paymentSettings = paymentSettings
+    }
+
+    func presentSettings(
+        with viewController: UIViewController,
+        completion: @escaping (Error?) -> Void
+    ) { }
+}
+
+class MockSDKSettings: NSObject, SDKSettings {
+    let environment: Environment
+    let version: String
+
+    init(
+        environment: Environment = .sandbox,
+        version: String = "1"
+    ) {
+        self.environment = environment
+        self.version = version
+    }
+}
+
+class MockPaymentSettings: NSObject, PaymentSettings {
+    let isOfflineProcessingAllowed: Bool
+    let offlineTransactionAmountLimit: MoneyAmount?
+    let offlineTotalStoredAmountLimit: MoneyAmount?
+
+    init(
+        isOfflineProcessingAllowed: Bool = true,
+        offlineTransactionAmountLimit: MoneyAmount? = nil,
+        offlineTotalStoredAmountLimit: MoneyAmount? = nil
+    ) {
+        self.isOfflineProcessingAllowed = isOfflineProcessingAllowed
+        self.offlineTransactionAmountLimit = offlineTransactionAmountLimit
+        self.offlineTotalStoredAmountLimit = offlineTotalStoredAmountLimit
+    }
+}

Example/Shared/Preview Content/Preview Assets.xcassets/Contents.json

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+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

Example/Shared/Resources/Assets.xcassets/AppIcon.appiconset/Contents.json

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+{
+  "images" : [
+    {
+      "filename" : "appIcon.png",
+      "idiom" : "universal",
+      "platform" : "ios",
+      "size" : "1024x1024"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

Example/Shared/Resources/Assets.xcassets/Contents.json

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+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

Example/Shared/Resources/Assets.xcassets/donut.imageset/Contents.json

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+{
+  "images" : [
+    {
+      "filename" : "donut.svg",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

Example/Shared/Resources/Launch Screen.storyboard

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+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="32700.99.1234" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <device id="retina6_12" orientation="portrait" appearance="light"/>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="22685"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="393" height="852"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="donut" translatesAutoresizingMaskIntoConstraints="NO" id="jm1-Cu-PKf">
+                                <rect key="frame" x="96.666666666666686" y="314.66666666666669" width="200" height="248.00000000000006"/>
+                                <constraints>
+                                    <constraint firstAttribute="width" constant="200" id="2LC-bF-tvo"/>
+                                </constraints>
+                            </imageView>
+                        </subviews>
+                        <viewLayoutGuide key="safeArea" id="Bcu-3y-fUS"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="jm1-Cu-PKf" firstAttribute="centerY" secondItem="Bcu-3y-fUS" secondAttribute="centerY" id="Pkc-ec-dua"/>
+                            <constraint firstItem="jm1-Cu-PKf" firstAttribute="centerX" secondItem="Bcu-3y-fUS" secondAttribute="centerX" id="ibB-mm-Vyv"/>
+                        </constraints>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="donut" width="248" height="248"/>
+    </resources>
+</document>