Building a seamless payment experience is crucial for any app dealing with financial transactions. With the Flutter Stripe SDK, you can enhance your Android and iOS applications by integrating powerful payment solutions with ease. This guide will walk you through the installation and integration process, ensuring that you can confidently collect payments while maintaining compliance and security.

Features of Flutter Stripe SDK

• Simplified Security: Directly send sensitive data like credit card numbers to Stripe for PCI compliance.
• Apple Pay Integration: Offer a seamless experience for Apple Pay users.
• Google Pay Support: Easily integrate Google Pay as a payment provider.
• Diverse Payment Methods: Accept multiple payment methods to expand your reach.
• SCA-Ready: Automatically handle 3D Secure authentication for European regulations.
• Native UI Components: Utilize out-of-the-box UI components for secure payments.
• Pre-built Payments UI: Use Payment Sheet for a ready-made payment flow.

Installation Steps

To install the Flutter Stripe SDK in your project, run the following command:

dart pub add flutter_stripe

Requirements

Android

To ensure proper functioning of the Flutter Stripe SDK on Android, adhere to the following requirements:

• Android 5.0 (API level 21) or higher.
• Kotlin version 1.8.0 or higher.
• Android Gradle plugin 8 or higher.
• Use of the AppCompat theme in your activity.
• Update Proguard rules as specified in the documentation.

After making these changes, remember to rebuild your app as these adjustments won’t reflect with hot reload.

iOS

Your app should target iOS 13 or above. To upgrade your iOS deployment target:

• Modify your build settings in Xcode or update IPHONEOS_DEPLOYMENT_TARGET in your project file.
• Set platform :ios, 13.0 in your Podfile.
• Add camera usage permissions to your Info.plist for card scanning functionalities.

Usage Overview

Card payments can be handled through three different methods:

Method	Ease of Use	Description
Payment Sheet	Easy	Recommended due to localization, animations, and error handling.
Card Field	Medium	Flexible single-line field with less built-in functionality.
Card Form	Medium	Similar to Card Field but laid out in multiple lines.

Initializing Stripe

To integrate Stripe into your app:

import 'package:flutter_stripe/flutter_stripe.dart';

void main() {
  Stripe.publishableKey = 'your_publishable_key';
  runApp(MyApp());
}

Troubleshooting Tips

If you encounter issues during the integration process:

• Ensure your app meets all the stated requirements for both Android and iOS.
• Check for the compatibility of the Android Gradle plugin version. Avoid upgrading to 8.0.0 or above as it may lead to crashes.
• For Android-specific concerns, join the discussion for community support.
• If you wish to get insights into best practices or resolve complex issues, feel free to reach out. For more insights, updates, or to collaborate on AI development projects, stay connected with fxis.ai.

Conclusion

By following this guide, you are on your way to elevating your app’s payment capabilities with the Flutter Stripe SDK. Its rich features not only simplify payment processing but also enhance user experience with native UI components. At fxis.ai, we believe that such advancements are crucial for the future of AI, as they enable more comprehensive and effective solutions. Our team is continually exploring new methodologies to push the envelope in artificial intelligence, ensuring that our clients benefit from the latest technological innovations.