With the v10.1.1-u1 release you can access OAuth2 services but there is not support in the API. You can authenticate OAuth2 services by requesting a token via URL and parse response via JSON. Once authenticated you can load the resource.Here is an example DialogFragment that authenticates OAuth2 using Android, Jackson, and Java API.
public class WebViewDialogFragment extends DialogFragment {
// The redirect_uri can be either a special value of urn:ietf:wg:oauth:2.0:oob
// or an application-specific custom URI that is handled on the device.
private static final String REDIRECT_URI = "";
// OAuth2 client_id = APPID
private static final String CLIENT_ID = "";
String username;
String access_token;
String refresh_token;
private CountDownLatch latch;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
getDialog().setTitle("Sign in to ArcGIS Online");
final View root = inflater.inflate(R.layout.activity_main, null);
root.findViewById(R.id.progressbar).setVisibility(View.VISIBLE);
final WebView webView = (WebView) root.findViewById(R.id.webview);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setBuiltInZoomControls(true);
webView.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
final String code = url.substring(url.indexOf("?code=") + 6,
url.length());
AsyncTask.execute(new Runnable() {
@Override
public void run() {
try {
requestToken("https://www.arcgis.com/sharing/rest/oauth2/token?client_id="
+ CLIENT_ID
+ "&redirect_uri="
+ REDIRECT_URI
+ "&grant_type=authorization_code&code="
+ code);
} catch (Exception e) {
Log.e(getClass().getSimpleName(), "", e);
}
dismiss();
}
});
return true;
}
@Override
public void onPageFinished(WebView view, String url) {
webView.setVisibility(View.VISIBLE);
root.findViewById(R.id.progressbar).setVisibility(View.GONE);
}
});
webView.loadUrl("https://www.arcgis.com/sharing/oauth2/authorize?client_id="
+ CLIENT_ID
+ "&response_type=code&redirect_uri="
+ REDIRECT_URI);
return root;
}
@Override
public void onDismiss(DialogInterface dialog) {
if (latch != null)
latch.countDown();
super.onDismiss(dialog);
}
public void setLatch(CountDownLatch latch) {
this.latch = latch;
}
private void requestToken(String url) throws JsonParseException,
MalformedURLException, IOException {
JsonFactory f = new JsonFactory();
JsonParser json = f.createJsonParser(new URL(url));
json.nextToken();
while (json.nextToken() != JsonToken.END_OBJECT) {
String name = json.getCurrentName();
json.nextToken();
if ("username".equals(name))
username = json.getText();
else if ("access_token".equals(name))
access_token = json.getText();
else if ("refresh_token".equals(name))
refresh_token = json.getText();
Log.i(getClass().getSimpleName(), name + " = " + json.getText());
}
}
}
Then you can launch the dialog from your Map Class with the following:
// Create and show the dialog.
WebViewDialogFragment dialog = new WebViewDialogFragment();
CountDownLatch latch = new CountDownLatch(1);
dialog.setLatch(latch);
dialog.show(getFragmentManager(), "dialog");
try {
latch.await();
if (!TextUtils.isEmpty(dialog.access_token)) {
credentials = new UserCredentials();
credentials.setUserAccount(dialog.username, "-");
credentials.setUserToken(dialog.access_token, "-");
credentials.setAuthenticationType(AuthenticationType.TOKEN);
return new MapLoadAction<UserCredentials>(
Action.CONTINUE_OPEN_WITH_THE_PARAMETER,
credentials);
}
} catch (InterruptedException e) {
Log.e(getClass().getSimpleName(), "", e);
}
The 10.2 Android SDK release will have support for authenticating in the API. It will include a class to authenticate and set listeners to. In the listener callback you can load the map or save the credentials to disk or both. We will release an OAuth2 sample with the next release of the SDK, v10.2.
