Allow setting of window flags on Stripe Activities

example/src/main/java/com/stripe/example/activity/PaymentSessionActivity.kt

@@ -3,6 +3,7 @@ package com.stripe.example.activity
 import android.content.Intent
 import android.os.Bundle
 import android.view.View
+import android.view.WindowManager
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.content.ContextCompat
 import com.google.android.material.snackbar.Snackbar
@@ -87,6 +88,7 @@ class PaymentSessionActivity : AppCompatActivity() {
                 .setAllowedShippingCountryCodes(setOf("US", "CA"))
                 .setShippingInformationValidator(ShippingInformationValidator())
                 .setShippingMethodsFactory(ShippingMethodsFactory())
+                .setWindowFlags(WindowManager.LayoutParams.FLAG_SECURE)
                 .setBillingAddressFields(BillingAddressFields.Full)
                 .build(),
             savedInstanceState = savedInstanceState,

stripe/src/main/java/com/stripe/android/PaymentSession.kt

@@ -237,6 +237,7 @@ class PaymentSession @VisibleForTesting internal constructor(
                 .setIsPaymentSessionActive(true)
                 .setPaymentConfiguration(PaymentConfiguration.getInstance(context))
                 .setPaymentMethodTypes(config?.paymentMethodTypes.orEmpty())
+                .setWindowFlags(config?.windowFlags)
                 .setBillingAddressFields(config?.billingAddressFields ?: BillingAddressFields.None)
                 .build()
         )
@@ -283,6 +284,7 @@ class PaymentSession @VisibleForTesting internal constructor(
                 .setPaymentSessionConfig(config)
                 .setPaymentSessionData(paymentSessionData)
                 .setIsPaymentSessionActive(true)
+                .setWindowFlags(config?.windowFlags)
                 .build()
         )
     }

stripe/src/main/java/com/stripe/android/PaymentSessionConfig.kt

@@ -35,7 +35,8 @@ data class PaymentSessionConfig internal constructor(
     val billingAddressFields: BillingAddressFields = BillingAddressFields.None,
 
     internal val shippingInformationValidator: ShippingInformationValidator? = null,
-    internal val shippingMethodsFactory: ShippingMethodsFactory? = null
+    internal val shippingMethodsFactory: ShippingMethodsFactory? = null,
+    internal val windowFlags: Int? = null
 ) : Parcelable {
     init {
         val countryCodes = Locale.getISOCountries()
@@ -95,6 +96,7 @@ data class PaymentSessionConfig internal constructor(
         private var allowedShippingCountryCodes: Set<String> = emptySet()
         private var shippingInformationValidator: ShippingInformationValidator? = null
         private var shippingMethodsFactory: ShippingMethodsFactory? = null
+        private var windowFlags: Int? = null
 
         @LayoutRes
         private var addPaymentMethodFooterLayoutId: Int = 0
@@ -191,6 +193,15 @@ data class PaymentSessionConfig internal constructor(
             this.allowedShippingCountryCodes = allowedShippingCountryCodes
         }
 
+        /**
+         * @param windowFlags optional flags to set on the `Window` object of Stripe Activities
+         *
+         * See [WindowManager.LayoutParams](https://developer.android.com/reference/android/view/WindowManager.LayoutParams)
+         */
+        fun setWindowFlags(windowFlags: Int?): Builder = apply {
+            this.windowFlags = windowFlags
+        }
+
         /**
          * @param shippingInformationValidator if specified, will be used to validate
          * [ShippingInformation] in [PaymentFlowActivity] instead of sending a broadcast with
@@ -229,6 +240,7 @@ data class PaymentSessionConfig internal constructor(
                 allowedShippingCountryCodes = allowedShippingCountryCodes,
                 shippingInformationValidator = shippingInformationValidator,
                 shippingMethodsFactory = shippingMethodsFactory,
+                windowFlags = windowFlags,
                 billingAddressFields = billingAddressFields
             )
         }

stripe/src/main/java/com/stripe/android/view/AddPaymentMethodActivity.kt

@@ -89,6 +89,10 @@ class AddPaymentMethodActivity : StripeActivity() {
     }
 
     private fun configureView(args: AddPaymentMethodActivityStarter.Args) {
+        args.windowFlags?.let {
+            window.addFlags(it)
+        }
+
         viewStub.layoutResource = R.layout.add_payment_method_layout
         val scrollView = viewStub.inflate() as ViewGroup
         val contentRoot: ViewGroup =

stripe/src/main/java/com/stripe/android/view/AddPaymentMethodActivityStarter.kt

@@ -35,7 +35,8 @@ class AddPaymentMethodActivityStarter constructor(
         internal val shouldInitCustomerSessionTokens: Boolean,
         internal val paymentMethodType: PaymentMethod.Type,
         internal val paymentConfiguration: PaymentConfiguration?,
-        @LayoutRes internal val addPaymentMethodFooterLayoutId: Int
+        @LayoutRes internal val addPaymentMethodFooterLayoutId: Int,
+        internal val windowFlags: Int? = null
     ) : ActivityStarter.Args {
 
         class Builder : ObjectBuilder<Args> {
@@ -48,6 +49,7 @@ class AddPaymentMethodActivityStarter constructor(
             private var paymentConfiguration: PaymentConfiguration? = null
             @LayoutRes
             private var addPaymentMethodFooterLayoutId: Int = 0
+            private var windowFlags: Int? = null
 
             /**
              * If true, the created Payment Method will be attached to the current Customer
@@ -99,6 +101,15 @@ class AddPaymentMethodActivityStarter constructor(
                 this.addPaymentMethodFooterLayoutId = addPaymentMethodFooterLayoutId
             }
 
+            /**
+             * @param windowFlags optional flags to set on the `Window` object of Stripe Activities
+             *
+             * See [WindowManager.LayoutParams](https://developer.android.com/reference/android/view/WindowManager.LayoutParams)
+             */
+            fun setWindowFlags(windowFlags: Int?): Builder = apply {
+                this.windowFlags = windowFlags
+            }
+
             @JvmSynthetic
             internal fun setIsPaymentSessionActive(
                 isPaymentSessionActive: Boolean
@@ -129,7 +140,8 @@ class AddPaymentMethodActivityStarter constructor(
                     shouldInitCustomerSessionTokens = shouldInitCustomerSessionTokens,
                     paymentMethodType = paymentMethodType ?: PaymentMethod.Type.Card,
                     paymentConfiguration = paymentConfiguration,
-                    addPaymentMethodFooterLayoutId = addPaymentMethodFooterLayoutId
+                    addPaymentMethodFooterLayoutId = addPaymentMethodFooterLayoutId,
+                    windowFlags = windowFlags
                 )
             }
         }

stripe/src/main/java/com/stripe/android/view/AddPaymentMethodCardRowView.kt

@@ -20,5 +20,6 @@ internal class AddPaymentMethodCardRowView internal constructor(
         .setPaymentMethodType(PaymentMethod.Type.Card)
         .setAddPaymentMethodFooter(args.addPaymentMethodFooterLayoutId)
         .setPaymentConfiguration(args.paymentConfiguration)
+        .setWindowFlags(args.windowFlags)
         .build()
 )

stripe/src/main/java/com/stripe/android/view/PaymentFlowActivity.kt

@@ -42,6 +42,7 @@ class PaymentFlowActivity : StripeActivity() {
         super.onCreate(savedInstanceState)
 
         val args = PaymentFlowActivityStarter.Args.create(intent)
+        args.windowFlags?.let { window.addFlags(it) }
 
         customerSession = CustomerSession.getInstance()
         customerSession.addProductUsageTokenIfValid(TOKEN_PAYMENT_SESSION)

stripe/src/main/java/com/stripe/android/view/PaymentFlowActivityStarter.kt

@@ -23,12 +23,14 @@ class PaymentFlowActivityStarter :
     data class Args internal constructor(
         internal val paymentSessionConfig: PaymentSessionConfig,
         internal val paymentSessionData: PaymentSessionData,
-        internal val isPaymentSessionActive: Boolean
+        internal val isPaymentSessionActive: Boolean,
+        internal val windowFlags: Int? = null
     ) : ActivityStarter.Args {
         class Builder : ObjectBuilder<Args> {
             private var paymentSessionConfig: PaymentSessionConfig? = null
             private var paymentSessionData: PaymentSessionData? = null
             private var isPaymentSessionActive = false
+            private var windowFlags: Int? = null
 
             fun setPaymentSessionConfig(
                 paymentSessionConfig: PaymentSessionConfig?
@@ -44,14 +46,24 @@ class PaymentFlowActivityStarter :
                 this.isPaymentSessionActive = isPaymentSessionActive
             }
 
+            /**
+             * @param windowFlags optional flags to set on the `Window` object of Stripe Activities
+             *
+             * See [WindowManager.LayoutParams](https://developer.android.com/reference/android/view/WindowManager.LayoutParams)
+             */
+            fun setWindowFlags(windowFlags: Int?): Builder = apply {
+                this.windowFlags = windowFlags
+            }
+
             override fun build(): Args {
                 return Args(
                     paymentSessionConfig = paymentSessionConfig
                         ?: PaymentSessionConfig.Builder().build(),
                     paymentSessionData = requireNotNull(paymentSessionData) {
                         "PaymentFlowActivity launched without PaymentSessionData"
                     },
-                    isPaymentSessionActive = isPaymentSessionActive
+                    isPaymentSessionActive = isPaymentSessionActive,
+                    windowFlags = windowFlags
                 )
             }
         }

stripe/src/main/java/com/stripe/android/view/PaymentMethodsActivity.kt

@@ -51,6 +51,10 @@ class PaymentMethodsActivity : AppCompatActivity() {
             PaymentMethodsViewModel.Factory(customerSession, args.initialPaymentMethodId)
         )[PaymentMethodsViewModel::class.java]
 
+        args.windowFlags?.let {
+            window.addFlags(it)
+        }
+
         startedFromPaymentSession = args.isPaymentSessionActive
         cardDisplayTextFactory = CardDisplayTextFactory.create(this)
 

stripe/src/main/java/com/stripe/android/view/PaymentMethodsActivityStarter.kt

@@ -45,6 +45,7 @@ class PaymentMethodsActivityStarter : ActivityStarter<PaymentMethodsActivity, Ar
         internal val isPaymentSessionActive: Boolean,
         internal val paymentMethodTypes: List<PaymentMethod.Type>,
         internal val paymentConfiguration: PaymentConfiguration?,
+        internal val windowFlags: Int? = null,
         internal val billingAddressFields: BillingAddressFields
     ) : ActivityStarter.Args {
         class Builder : ObjectBuilder<Args> {
@@ -56,6 +57,7 @@ class PaymentMethodsActivityStarter : ActivityStarter<PaymentMethodsActivity, Ar
             private var paymentConfiguration: PaymentConfiguration? = null
             @LayoutRes
             private var addPaymentMethodFooterLayoutId: Int = 0
+            private var windowFlags: Int? = null
 
             /**
              * @param billingAddressFields the billing address fields to require on [AddPaymentMethodActivity]
@@ -113,6 +115,15 @@ class PaymentMethodsActivityStarter : ActivityStarter<PaymentMethodsActivity, Ar
                 this.addPaymentMethodFooterLayoutId = addPaymentMethodFooterLayoutId
             }
 
+            /**
+             * @param windowFlags optional flags to set on the `Window` object of Stripe Activities
+             *
+             * See [WindowManager.LayoutParams](https://developer.android.com/reference/android/view/WindowManager.LayoutParams)
+             */
+            fun setWindowFlags(windowFlags: Int?): Builder = apply {
+                this.windowFlags = windowFlags
+            }
+
             override fun build(): Args {
                 return Args(
                     initialPaymentMethodId = initialPaymentMethodId,
@@ -121,6 +132,7 @@ class PaymentMethodsActivityStarter : ActivityStarter<PaymentMethodsActivity, Ar
                     paymentMethodTypes = paymentMethodTypes ?: listOf(PaymentMethod.Type.Card),
                     paymentConfiguration = paymentConfiguration,
                     addPaymentMethodFooterLayoutId = addPaymentMethodFooterLayoutId,
+                    windowFlags = windowFlags,
                     billingAddressFields = billingAddressFields
                 )
             }