How Do I Add eWallet to Android App?

Android, Android Apps

Adding an eWallet to your Android app can be a great way to enhance user experience and provide a convenient payment option. In this tutorial, we will walk through the steps of integrating an eWallet into your Android app.

Step 1: Choose an eWallet Provider
The first step in adding an eWallet to your Android app is to select a suitable eWallet provider. There are several popular options available, such as Google Pay, Apple Pay, PayPal, and Stripe. Each provider has its own set of features and requirements, so make sure to choose one that aligns with your app’s needs.

Step 2: Set Up Your Developer Account
Before you can integrate the eWallet into your Android app, you will need to set up a developer account with the chosen provider. This typically involves creating an account on their developer portal and agreeing to the terms and conditions.

Step 3: Obtain API Credentials
To connect your Android app with the eWallet provider’s services, you will need API credentials. These credentials include a unique client ID, secret key, and other necessary information. You can usually find these credentials in the developer portal of the respective eWallet provider.

Implementing Google Pay as an Example

For this tutorial, we will focus on integrating Google Pay as the eWallet solution for our Android app.

Step 4: Add Dependencies
To begin integrating Google Pay into your Android app, you need to add the necessary dependencies in your project’s build.gradle file. Open the file and add the following lines:

    implementation ''

Step 5: Initialize Google Pay API
To use Google Pay in your app, you need to initialize the Google Pay API. Add the following code snippet to your activity or fragment:

// Create a GooglePayClient instance
GooglePayClient googlePayClient = new GooglePayClient(activity);

// Initialize the client
googlePayClient.initialize(new GooglePayConfig.Builder()
        .setEnvironment(GooglePayConfig.ENVIRONMENT_TEST) // Use ENVIRONMENT_TEST for testing

// Set up a listener to handle payment callbacks
googlePayClient.setPaymentListener(new PaymentListener() {
    public void onPaymentSuccess(PaymentResult paymentResult) {
        // Handle successful payment

    public void onPaymentFailure(PaymentResult paymentResult) {
        // Handle payment failure

// Start Google Pay flow when user clicks on a button or performs an action
button.setOnClickListener(new View.OnClickListener() {
    public void onClick(View v) {

Step 6: Handle Payment Callbacks
The previous step sets up a listener to handle payment callbacks. Implement the necessary logic inside the `onPaymentSuccess` and `onPaymentFailure` methods to handle successful payments and failures, respectively.

Adding Apple Pay, PayPal, or Stripe

The process of integrating other eWallet providers like Apple Pay, PayPal, or Stripe may vary slightly from Google Pay. You will need to follow their respective documentation and SDKs to complete the integration.

  • For Apple Pay: Refer to Apple’s official documentation for adding Apple Pay to your iOS app.
  • For PayPal: Visit PayPal’s developer portal and access their extensive documentation on integrating PayPal into your Android app.
  • For Stripe: Check out the Stripe API documentation for Android to add Stripe as a payment option.


Integrating an eWallet into your Android app can offer numerous benefits, such as improved user experience and streamlined payments. By following the steps outlined in this tutorial, you can easily add an eWallet like Google Pay, Apple Pay, PayPal, or Stripe to your app. Remember to choose a suitable eWallet provider, obtain the necessary credentials, initialize the API, and handle payment callbacks accordingly.