Using Free Google Maps in Android
To use Google Map's free API in an Android App, you can load it as a WebView iframe:
WebView myWebView = (WebView) findViewById(R.id.displaymap);
WebSettings webSettings = myWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
myWebView.setWebViewClient(new WebViewClient());
String html = "<iframe style=\"width:100%;height:100%;border:none;border-radius:.5rem;\" " +
"src=\"https://maps.google.com/maps?q=Chicago,Illinois,US&z=13&t=&ie=UTF8&iwloc=&output=embed\" ></iframe>";
myWebView.loadData(html, "text/html", null);