MainActivity.Java

import android.webkit.WebView;
...

webView = (WebView) findViewById(R.id.transakWidget);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("<https://global.transak.com?apiKey=4fcd6904-706b-4aff-bd9d-77422813bbb7&defaultCryptoCurrency=ETH>");

Activity_main.xml

<WebView xmlns:android="<http://schemas.android.com/apk/res/android>"
    android:id="@+id/transakWidget"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"/>

Provide permission in AndroidManifest.XML

<uses-permission android:name="android.permission.INTERNET"/>

Query Parameters

You can pass several arguments as query parameters to customize the widget further.

Follow the below link to get the API Key

WebSocket

Using the WebSocket you can track the order easily