One fix for Android, one check for com.android.application and one iOS fix (#1942)

* Fix border radius handling, see flutter-stripe/flutter_stripe#1933

* throw warning when incompatible com.android.application plugin is used

see flutter-stripe/flutter_stripe#1909

* throw warning when incompatible com.android.application plugin is used

see flutter-stripe/flutter_stripe#1909

* remove unnecessary println

* Fix iOS issue from flutter-stripe/flutter_stripe#1928

Author: toptalentcoder

packages/stripe_android/android/build.gradle

@@ -65,3 +65,11 @@ dependencies {
     // Users need to declare this dependency on their own, otherwise all methods are a no-op
     compileOnly 'com.stripe:stripe-android-issuing-push-provisioning:1.1.0'
 }
+
+afterEvaluate {
+    // check version of com.android.application - fail if 8.0.0 or higher
+    def androidPluginVersion = com.android.Version.ANDROID_GRADLE_PLUGIN_VERSION
+    if (androidPluginVersion >= '8.0.0') {
+        throw new GradleException("flutter_stripe: Stripe Android SDK requires com.android.application plugin lower than 8.0.0.\nSee https://github.com/flutter-stripe/flutter_stripe/issues/1909\n")
+    }
+}

packages/stripe_android/android/src/main/kotlin/com/facebook/react/bridge/ReadableMap.java

@@ -44,7 +44,7 @@ public boolean hasKey(String key) {
 
     public Integer getInt(String key) throws Exception {
         if (map.opt(key) instanceof Double) {
-            throw new Exception("We've got a double here");
+            return (int) getDouble(key);
         }
         return map.getInt(key);
     }

packages/stripe_ios/ios/Classes/CardFieldFactory.swift

@@ -162,7 +162,7 @@ extension CardFieldView {
         cardParams.type = STPPaymentMethodType.card
         cardParams.card = cardMethodParams
 
-        self.cardField.paymentMethodParams.card = cardMethodParams
+        self.cardField.paymentMethodParams = STPPaymentMethodParams.paramsWith(card: cardMethodParams, billingDetails: nil, metadata: nil)
         self.cardField.postalCode = params["postalCode"] as? String
         self.cardParams = cardParams
         self.cardPostalCode = params["postalCode"] as? String