#Android studio app samples how to#
#Android studio app samples install#
#Android studio app samples android#
#Android studio app samples code#

The first of these is to switch away from the app and then reactivate it from its shortcut: It is worth performing certain tests while the Chrome Custom Tab window is active, to ensure that the app does not throw exceptions or recreate views unnecessarily: Step 11: Test Reactivating the App During Login

#Android studio app samples android#

The encrypted tokens are then saved to Android Shared Preferences. The token data is then encrypted using a key private to this app, generated via the Android Key Store.

#Android studio app samples code#

Once the authorization code is received by the app, a background Authorization Code Grant message is sent to Cognito’s token endpoint, which return OAuth tokens in the response: The Deep Linking HTTPS Scheme for login responses is associated to the app via the below Android manifest entry, which overrides the default AppAuth behaviour of using a Private URI Scheme: If we do a View Source for one of the above URLs from a desktop browser, we can see that they just forward query parameters from the response, using the mobile app’s Deep Linking host name: Two interstitial web pages are used with our Android sample, hosted at the following URLs:Īs discussed in our previous post, these web pages exist to avoid Chrome Custom Tab hangs, and to return Claimed HTTPS scheme login responses correctly to our app:

The result of successful authorization is the following message, and note that this is sent to a web domain rather than directly to our Android app: Step 9: Understand Redirect Response Handling Our AWS Cognito Authorization Server accepts the request and issues an authorization code because the Client ID, Redirect URI and Scopes of the request match those configured in a Cognito OAuth Client: Step 8: Understand Login Redirectsīy using AppAuth libraries the standard Authorization Code Flow (PKCE) message is sent: To view these messages on your own PC you will need a working HTTPS Debugging Setup, or you can just view the below screenshots if you prefer. We will look at some OAuth messages in the following sections. When our app runs it uses the API and OAuth settings from an embedded JSON configuration file: Step 6: Understand Configuration Settings View the Android Manifest File to see the declaration of our Single Activity, which runs in Single Top mode, meaning it is created only once, in a similar manner to the browser’s main window in an SPA. Step 5: View our Single Activity Configuration Our app will only support Android 6 (SDK 23) and above, since this simplifies some areas of our Android implementation. View the app’s Gradle file to understand the our Single Activity App’s third party dependencies, which include the AppAuth Library: Next save the password when prompted, then navigate between fragments by clicking an item in the Companies view or using the Home button: You may then get an initial prompt to Secure your Device, after which you will be able to login with the following Test Credential: You can now run our demo app via the standard Run Icon in the Android Studio toolbar: Also ensure that Gradle is configured to compile with Java 11 under Preferences / Build,Execution,Deployment / Build Tools / Gradle / Gradle JDK: When the project is loaded there will be a Gradle Sync to download third party libraries. Shortly we will describe the Coding Model, where we implement OAuth Integration in an unobtrusive manner, so that Android views only need to make simple API calls and other classes deal with OAuth plumbing: Step 2: Open the Project in Android Studio The project is available here, and can be downloaded / cloned to your local PC with the following command:

#Android studio app samples install#

We can run our sample on Mac OS, Windows or Linux, but first install an up to date version of Android Studio, so that you have access to the latest Kotlin and Jetpack features.

Readers who are new to Android development may also want to browse these earlier pages:

#Android studio app samples how to#

Previously we provided an Overview of our Android App’s Behaviour and next we will describe how to run and test the code sample.