This example shows how to use the Connectivity Manager.

The Connectivity Manager allows to know the state of the network connectivity.

• MICROEJ SDK 6.
• A VEE Port that contains:
  • EDC-1.3 or higher
  • NET-1.1 or higher

This example has been tested on:

• IntelliJ IDEA with MicroEJ plugin for IntelliJ IDEA 1.1.0.
• NXP i.MX RT1170 VEE Port 3.0.0.

Follow MICROEJ SDK 6 Installation Guide to setup the SDK.

By default, the sample will use the NXP i.MX RT1170 VEE Port 3.0.0. The sample retrieves the VEE Port as a module.

Refer to the Select a VEE Port documentation to use another VEE Port in your project.

Run the following command in your IDE (or click the Play button next to the line below when opening this README in IntelliJ IDEA):

./gradlew :androidconnectivity:runOnSimulator

Alternative ways to run in simulation are described in the Run on Simulator documentation.

Complete the Getting Started for NXP i.MX RT1170 Evaluation Kit to make sure your environment is fully setup.

If you are using another VEE Port, make sure to properly setup the VEE Port environment before going further. Refer to the dedicated VEE Port README or Getting Started for more information.

Run the following command in your IDE (or click the Play button next to the line below when opening this README in IntelliJ IDEA):

./gradlew :androidconnectivity:runOnDevice

Alternative ways to run on device are described in the Run on Device documentation.

In a Multi-Sandbox context, the network callback registered at the application startup should be unregistered when the application stops.

Find below an implementation example:

	@Override
	public void stop() {
		MyConnectivityExample connectivityExample = this.connectivityExample;
		this.connectivityExample = null;
		ConnectivityManager connectivityManager = ServiceFactory
				.getService(ConnectivityManager.class);
		if (connectivityExample != null && connectivityManager != null) {
			connectivityManager.unregisterNetworkCallback(connectivityExample);
		}
	}

Once the application is connected to the internet, the following traces should be observed in the console:

android connectivity example INFO: Network is lost.
android connectivity example INFO: Connected to the internet = false
android connectivity example INFO: Network is available.
android connectivity example INFO: Connected to the internet = true

The dependencies defined in build.gradle.kts are configured in libs.versions.toml.

All dependencies are retrieved transitively by Gradle.

N/A

None.

Markdown
Copyright 2019-2025 MicroEJ Corp. All rights reserved.
Use of this source code is governed by a BSD-style license that can be found with this software.