Connecting Android Application to IoT-Ignite

In this tutorial, we’re going to use IoT-Ignite SDK for connecting our device to IoT-Ignite cloud.

Firstly create an Android app and set up the required dependencies:

• Creating IoT-Ignite Project on Android Studio

Make sure IotIgniteAgent app is installed on your device. Also, your device must be registered to IoT-Ignite.

You can download and install latest IoT-Ignite Agent app from Google Play Store: Download IoT-Ignite

Add this code block to your application’s MainActivity->onCreate() function.

         /**
         * Sample code for connect to IoT-Ignite cloud.
         */


        try {
            mIotIgniteManager = new IotIgniteManager.Builder()
                    /* Application Context */
                    .setContext(getApplicationContext())
                    /* Connection callback for ignite state. */
                    .setConnectionListener(new ConnectionCallback() {
                        @Override
                        public void onConnected() {
                            Log.i(TAG,"Ignite connected");
                        }

                        @Override
                        public void onDisconnected() {
                            Log.i(TAG,"Ignite disconnected");
                        }
                    })
                    /* finally build and get instance */
                    .build();
        } catch (UnsupportedVersionException e) {
            Log.e(TAG,"UnsupportedVersionException : " + e.getMessage());

}

IotIgniteManager is the main entrance for connecting IoT-Ignite. We can generate its instance using

new IotIgniteManager.Builder()

Builder() requires two parameters to generate an instance. These are:

Builder().setContext(Context appContext) : IotIgniteManager using your app context for differentiate you from other apps.

Builder().setConnectionCallback(ConnectionCallback cb) : Connection callback for IoT-Ignite connection.onConnected() function triggers when connection established.

When your app is connected to IoT-Ignite cloud successfully, you should see “Sample IoT-Ignite App: Ignite connected” output in your  logcat:

Application Authorization Result

Reasons why an Unsupported Version Exception occurs are:

1. IoT-Ignite Agent App is not up to date or your application is using the newest version of IgniteSDK.
   Solution: Update your IoT-Ignite Agent application to the latest version.
2. Your app is using an old version of IgniteSDK but IotIgniteAgent app is the newest version.
   Solution: Use the latest version of IgniteSDK.

Complete code for main activity class is:

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;

import com.ardic.android.iotignite.callbacks.ConnectionCallback;
import com.ardic.android.iotignite.exceptions.UnsupportedVersionException;
import com.ardic.android.iotignite.nodes.IotIgniteManager;

public class MainActivity extends Activity {

    private static final String TAG ="Sample IoT-Ignite App";
    private IotIgniteManager mIotIgniteManager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        /**
         * Sample code for connect to IoT-Ignite cloud.
         */


        try {
            mIotIgniteManager = new IotIgniteManager.Builder()
                    /* Application Context */
                    .setContext(getApplicationContext())
                    /* Connection callback for ignite state. */
                    .setConnectionListener(new ConnectionCallback() {
                        @Override
                        public void onConnected() {
                            Log.i(TAG,"Ignite connected");
                        }

                        @Override
                        public void onDisconnected() {
                            Log.i(TAG,"Ignite disconnected");
                        }
                    })
                    /* finally build and get instance */
                    .build();
        } catch (UnsupportedVersionException e) {
            Log.e(TAG,"UnsupportedVersionException : " + e.getMessage());
        }
    }
}

Happy Codings,