Android app integration

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ToP (Tap-on-Phone) is for Android devices with Android OS 8.1 or above and for Apple devices with iOS 11 or above


The client app must implement a mechanism to send messages using Android intents and URI calls and to receive the result in a custom URI callback. Overall the following messages are available:

Callback activity

The client app must provide a callback activity declare in AndroidManifest.xml, in order to receive the response results.

          android:label="Payment Result">
                <action android:name="android.intent.action.VIEW"/>
                <action android:name="com.example.URLResponseActivity"/>
                <category android:name="android.intent.category.DEFAULT"/>
                <category android:name="android.intent.category.BROWSABLE"/>
                <!-- Provide your own scheme here and reference it when you send a message -->

Key to card terminal product categories

To understand the icons used in the every request/response, see the below table.

Product category Terminal models Icon
Android Card Terminals Android Card Terminal Ethernet, Android Card Terminal 4G, Mobile Card Terminal Plus, Mobile Card Terminal. Android Card Terminals
Viva Wallet POS app for Android Tap on Phone, Viva Wallet One terminal. Mini Card Reader, Pocket Card Terminal connected via Bluetooth or USB to the Viva Wallet POS app for Android. Viva Wallet POS app for Android

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If you have any questions about our solutions, or questions about how to integrate with our solutions, please refer to our Get Support page.