// app development
Android API & SDK Integration
The screens may be finished, but the application still needs to sign users in, fetch the right records, send updates or work with a vendor's SDK.
DroidRooter develops Android integrations around the full exchange, not just the first successful API call. We review authentication, data ownership, failure handling and the provider's requirements before defining the implementation.
Start with the system on the other side
A reliable estimate needs more than the name of a platform. We need to understand its documented interface, available test environment, access requirements and the operations the app must perform.
An integration with a supported API is different from connecting to a system that has no suitable interface. Missing documentation, account permissions or backend functionality should be identified before development starts.
We work with authorised access and supported integration routes. A custom mobile app does not remove a third party's licensing, usage or access requirements.
Integration work we can scope
Accounts and authenticated requests
Implement the appropriate login and authorisation flow for the system. Define what happens when a session expires, access is revoked or a user is not permitted to perform an operation.
Business data and synchronisation
Connect the application to customer records, job information, inventory or other agreed data. Decide which system owns each record and how conflicting or incomplete updates are handled.
Third-party SDKs
Integrate a documented vendor library, assess its configuration and compatibility requirements and identify the behaviour it adds to the app. An SDK's presence does not remove the need to review its permissions and data handling.
Notifications, uploads and transactional workflows
Scope the complete user journey: start, progress, confirmation and recovery. A file upload needs different handling from a read-only lookup, and a request that changes data should not be retried blindly.
Native integrations for Flutter
Where a Flutter project requires an Android-only SDK, review the native implementation and its interface to the Dart layer. See Flutter development for a shared mobile project.
Make failures understandable
A useful integration tells the user what happened and what they can do next. It should not present every failure as an empty screen.
| Situation | Behaviour to define |
|---|---|
| The network is unavailable. | Explain which actions are blocked and whether any work can be saved locally. |
| A session has expired. | Recover through the supported authentication flow without losing unnecessary user input. |
| The service rejects a request. | Show an appropriate message and preserve enough diagnostic context to investigate. |
| A request times out after changing data. | Check the outcome safely before sending a potentially duplicated operation. |
| A vendor changes its response or SDK. | Identify compatibility assumptions and the maintenance work that may be needed. |
These decisions form part of the integration specification. Their exact implementation depends on the API and backend, not only the Android app.
Keep credentials and responsibilities clear
A mobile app is not an appropriate place to conceal a server administrator's credentials. Privileged operations may require a backend component with properly scoped access.
We define which configuration belongs in the application, which operations belong on the server and who manages the relevant accounts. Initial enquiries should contain documentation links and a description of the required flow, not production tokens or passwords.
Backend changes, dashboards and ongoing service charges are separate scope items unless the proposal explicitly includes them.
What a useful handover includes
Depending on the project, the integration deliverables can include implementation changes, configuration instructions, field mappings, documented assumptions and checks for key success and failure scenarios.
Where a vendor provides a test environment, use it for appropriate verification. Record the environment and supported version rather than claiming that a test covers every possible provider change.
For a full application around the integration, see custom Android app development. For a connection to physical equipment, use Android device integration.
Frequently asked questions
Can you connect an Android app to our CRM or existing website?
Potentially. Send the platform name, the required workflow and any public API documentation. We need to verify that the required operations and permissions are available.
Do you also need access to the backend?
It depends on the integration. Some projects can use an existing API; others require server changes, credentials or configuration managed by your backend team.
Can you work with a private vendor SDK?
Yes, subject to appropriate access and licensing. We need its documentation, supported environments and a way to test the integration without exposing confidential information publicly.
Can an integration work offline?
Some data and actions can be designed for offline use. The scope must define what can be cached, what can be queued and how changes are reconciled.
Can you fix an integration that already exists?
Yes. Describe the failed operation and when it occurs. A focused app debugging review may be the best starting point.
Tell us what needs to connect
Name the app, the service or SDK, and the action a user needs to complete. Include a documentation link when one is available.