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IAP Prototype.
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‎iap-example/build.gradle

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apply from: configs.androidApplication
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apply plugin: 'org.jetbrains.kotlin.plugin.serialization'
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apply plugin: 'org.jetbrains.kotlin.plugin.compose'
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android {
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defaultConfig {
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applicationId "com.stripe.android.iap.example"
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versionCode 20
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testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
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}
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buildFeatures {
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compose true
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}
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}
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dependencies {
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implementation project(':iap')
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implementation libs.accompanist.materialThemeAdapter
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implementation libs.androidx.appCompat
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implementation libs.androidx.coreKtx
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implementation libs.androidx.lifecycleCompose
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implementation libs.compose.activity
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implementation libs.compose.material
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implementation libs.compose.materialIcons
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implementation libs.compose.ui
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implementation libs.compose.viewModels
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implementation libs.kotlin.serialization
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implementation libs.material
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}

‎iap-example/gradle.properties

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STRIPE_ANDROID_NAMESPACE=com.stripe.android.iapexample

‎iap-example/proguard-rules.pro

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‎iap-example/src/main/AndroidManifest.xml

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android">
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<uses-permission android:name="android.permission.INTERNET" />
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<application
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android:allowBackup="true"
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android:fullBackupOnly="true"
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android:label="IAP Example"
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android:theme="@style/Theme.Material3.DayNight"
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android:supportsRtl="true">
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<activity
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android:name=".MainActivity"
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android:exported="true">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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</application>
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</manifest>

‎iap-example/src/main/java/com/stripe/android/iapexample/MainActivity.kt

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package com.stripe.android.iapexample
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import android.os.Bundle
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import android.widget.Toast
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import androidx.activity.compose.setContent
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import androidx.activity.viewModels
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import androidx.appcompat.app.AppCompatActivity
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import androidx.compose.foundation.layout.Column
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import androidx.compose.material.Button
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import androidx.compose.material.Text
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import com.stripe.android.iap.InAppPurchase
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import com.stripe.android.iap.InAppPurchasePluginLookupType
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internal class MainActivity : AppCompatActivity(), InAppPurchase.ResultCallback {
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private val viewModel by viewModels<MainActivityViewModel>()
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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val inAppPurchase = InAppPurchase(
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publishableKey = "pk_test_123",
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activity = this,
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resultCallback = this,
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plugins = viewModel.plugins,
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)
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setContent {
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Column {
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Button(
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onClick = { inAppPurchase.purchase("price_123") }
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) {
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Text("Default")
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}
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Button(
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onClick = { }
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) {
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Text("Checkout")
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}
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Button(
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onClick = {
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inAppPurchase.purchase("price_123", lookupType = InAppPurchasePluginLookupType.GooglePlay())
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}
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) {
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Text("Google Play")
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}
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}
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}
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}
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override fun onResult(result: InAppPurchase.Result) {
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when (result) {
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is InAppPurchase.Result.Canceled -> {
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Toast.makeText(this, "Canceled", Toast.LENGTH_LONG).show()
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}
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is InAppPurchase.Result.Completed -> {
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// Just call your server, given the authenticated customer, and look up subscription
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Toast.makeText(this, "Completed", Toast.LENGTH_LONG).show()
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}
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is InAppPurchase.Result.Failed -> {
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Toast.makeText(this, "Failed", Toast.LENGTH_LONG).show()
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}
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}
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}
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}

‎iap-example/src/main/java/com/stripe/android/iapexample/MainActivityViewModel.kt

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package com.stripe.android.iapexample
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import androidx.lifecycle.ViewModel
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import com.stripe.android.iap.InAppPurchasePlugin
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internal class MainActivityViewModel : ViewModel() {
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val plugins = listOf(
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InAppPurchasePlugin.stripeCheckout { "https://checkout.stripe.com/c/pay/cs_test_a1HBtfleCxMwy8n2EVIVG0GWBan1iL5UneGLlSQZfXk9WntapuOf22Zu7e#fid2cGd2ZndsdXFsamtQa2x0cGBrYHZ2QGtkZ2lgYSc%2FY2RpdmApJ2R1bE5gfCc%2FJ3VuWnFgdnFaMDRNc1FMMklwMGo2VTQ9X3UzcTBEYkdWbkhzUmpRcUQ1a3xEMnVTXEF0dWNJbldxUnBrMnRfUVxGSk1GV2B1d2NJSDEzMXxkR2BDMjdQQ2NHMmZcPFJCMWQ1NV9rQXFsRjdGJyknY3dqaFZgd3Ngdyc%2FcXdwYCknaWR8anBxUXx1YCc%2FJ3Zsa2JpYFpscWBoJyknYGtkZ2lgVWlkZmBtamlhYHd2Jz9xd3BgeCUl" },
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InAppPurchasePlugin.googlePlay { "cscs_1234" },
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)
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}

‎iap/build.gradle

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apply from: configs.androidLibrary
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apply plugin: 'org.jetbrains.kotlin.plugin.parcelize'
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apply plugin: 'org.jetbrains.kotlin.plugin.serialization'
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apply plugin: 'com.google.devtools.ksp'
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apply plugin: 'dev.drewhamilton.poko'
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dependencies {
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implementation libs.androidx.browser
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api libs.kotlin.coroutines
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implementation libs.kotlin.serialization
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api libs.androidx.activity
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implementation libs.androidx.lifecycle
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implementation libs.androidx.appCompat
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implementation "com.android.billingclient:billing-ktx:7.1.1"
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ksp libs.daggerCompiler
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testImplementation testLibs.junit
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testImplementation testLibs.robolectric
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testImplementation testLibs.truth
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}
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android {
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testOptions {
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unitTests {
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includeAndroidResources = true
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all {
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maxHeapSize = "1024m"
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}
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}
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// Make sure animations are off when we run espresso tests
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animationsDisabled = true
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}
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}
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ext {
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artifactId = "iap"
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artifactName = "iap"
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artifactDescrption = "Stripe In App Purchase Android SDK"
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}
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//apply from: "${rootDir}/deploy/deploy.gradle"

‎iap/consumer-rules.txt

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‎iap/gradle.properties

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STRIPE_ANDROID_NAMESPACE=com.stripe.android.iap

‎iap/res/values/themes.xml

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<?xml version="1.0" encoding="utf-8"?>
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<resources>
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<!-- Theme used by Activities that do not show any UI, so the activity underneath them is still fully visible -->
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<style name="StripeIapTransparentTheme" parent="@style/Theme.AppCompat.NoActionBar">
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<item name="android:windowSoftInputMode">adjustResize</item>
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<item name="android:windowIsTranslucent">true</item>
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<item name="android:windowBackground">@android:color/transparent</item>
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<item name="android:windowContentOverlay">@null</item>
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<item name="android:windowNoTitle">true</item>
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<item name="android:windowIsFloating">true</item>
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<item name="android:backgroundDimEnabled">false</item>
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</style>
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</resources>

‎iap/src/main/AndroidManifest.xml

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android">
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<application>
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<activity
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android:name=".CheckoutForegroundActivity"
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android:autoRemoveFromRecents="true"
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android:configChanges="orientation|keyboard|keyboardHidden|screenLayout|screenSize|smallestScreenSize"
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android:launchMode="singleTop"
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android:theme="@style/StripeIapTransparentTheme" />
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<activity
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android:name=".CheckoutRedirectHandlerActivity"
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android:theme="@style/StripeIapTransparentTheme"
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android:autoRemoveFromRecents="true"
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android:launchMode="singleInstance"
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android:exported="true">
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<intent-filter>
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<action android:name="android.intent.action.VIEW" />
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<category android:name="android.intent.category.DEFAULT" />
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<category android:name="android.intent.category.BROWSABLE" />
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<data
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android:scheme="stripesdk"
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android:host="iap_success_url"
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android:path="/${applicationId}" />
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</intent-filter>
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</activity>
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</application>
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</manifest>

‎iap/src/main/java/com/stripe/android/iap/CheckoutForegroundActivity.kt

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package com.stripe.android.iap
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import android.content.ActivityNotFoundException
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import android.content.Context
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import android.content.Intent
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import android.net.Uri
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import android.os.Bundle
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import androidx.appcompat.app.AppCompatActivity
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import androidx.browser.customtabs.CustomTabsIntent
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import androidx.core.net.toUri
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internal class CheckoutForegroundActivity : AppCompatActivity() {
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companion object {
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const val ACTION_REDIRECT = "CheckoutForegroundActivity.redirect"
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const val EXTRA_CHECKOUT_URL = "CheckoutUrl"
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const val EXTRA_FAILURE = "CheckoutFailure"
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const val RESULT_COMPLETE = 49871
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const val RESULT_FAILURE = 91367
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private const val SAVED_STATE_HAS_LAUNCHED_URL = "CheckoutForegroundActivity_LaunchedUrl"
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fun createIntent(context: Context, checkoutUrl: String): Intent {
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return Intent(context, CheckoutForegroundActivity::class.java)
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.putExtra(EXTRA_CHECKOUT_URL, checkoutUrl)
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}
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fun redirectIntent(context: Context, uri: Uri?): Intent {
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val intent = Intent(context, CheckoutForegroundActivity::class.java)
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intent.action = ACTION_REDIRECT
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intent.data = uri
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intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP)
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return intent
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}
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}
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private var hasLaunchedUrl: Boolean = false
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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hasLaunchedUrl = savedInstanceState?.getBoolean(SAVED_STATE_HAS_LAUNCHED_URL) ?: false
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handleRedirectIfAvailable(intent)
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}
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override fun onSaveInstanceState(outState: Bundle) {
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super.onSaveInstanceState(outState)
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outState.putBoolean(SAVED_STATE_HAS_LAUNCHED_URL, hasLaunchedUrl)
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}
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override fun onNewIntent(intent: Intent) {
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super.onNewIntent(intent)
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handleRedirectIfAvailable(intent)
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}
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override fun onResume() {
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super.onResume()
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if (!isFinishing) {
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if (hasLaunchedUrl) {
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setResult(RESULT_CANCELED)
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finish()
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} else {
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launchCheckoutUrl()
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}
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}
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}
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private fun handleRedirectIfAvailable(intent: Intent) {
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if (intent.action == ACTION_REDIRECT) {
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setResult(RESULT_COMPLETE, intent)
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finish()
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}
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}
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private fun launchCheckoutUrl() {
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hasLaunchedUrl = true
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val checkoutUri = intent.extras?.getString(EXTRA_CHECKOUT_URL)?.toUri()
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if (checkoutUri == null) {
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setResult(RESULT_CANCELED)
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finish()
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return
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}
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try {
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CustomTabsIntent.Builder()
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.setShareState(CustomTabsIntent.SHARE_STATE_OFF)
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.build()
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.launchUrl(this, checkoutUri)
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} catch (e: ActivityNotFoundException) {
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setResult(RESULT_FAILURE, Intent().putExtra(EXTRA_FAILURE, e))
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finish()
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}
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}
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}

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