Push Notification Delivery Using One Signal In Android - Part Two

Read the first part of this article from the following link.

• Push Notification Delivery Using One Signal In Android – Part One

Introduction

One Signal notification is one hundred percent free and gives unlimited access for mobile and web applications. One Signal offers cross-platform support, and is secure and reliable push notification delivery service.

In this article, I will show you how to deliver push notifications using One Signal in Android application. Android is a kernel based operating system in which users can modify the GUI components and source code.

Requirements

• Android Studio
• A little knowledge of XML and Java.
• Android Emulator (or) Android mobile
• Stable internet connection during execution.
• Download link (Android Studio)

Steps to be followed

Carefully follow the below steps to enable push notification delivery using One Signal in your Android application. I have included the source code too for download.

 

Step 1

Go to app, open build.gradle, and add the below lines in your dependencies.

compile 'com.android.support:appcompat-v7:25.3.1'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile 'com.google.android.gms:play-services:8.1.0'
compile 'com.google.android.gms:play-services-ads:8.1.0'
compile 'com.google.android.gms:play-services-identity:8.1.0'
compile 'com.google.android.gms:play-services-gcm:8.1.0'
compile 'com.onesignal:OneSignal:2.+@aar'
compile 'com.google.android.gms:play-services-analytics:8.1.0'
compile 'com.google.android.gms:play-services-location:8.1.0'
testCompile 'junit:junit:4.12'

Step 2

Then, add the below lines to you defaultconfig in build.gradle below the versionName.

manifestPlaceholders = [manifestApplicationId: "${applicationId}",
                       onesignal_app_id: "OneSignal App ID",
                       onesignal_google_project_number: "GCM Project ID"]
estInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

Step 3

Go to the below link and click Login button.

Link : https://onesignal.com/#pricing



Step 4

Login via your Gmail Id.



Step 5

Type your app and click "Create".



Step 6

Open your project, go to "App Settings", and click "Configure" in Google Android.



Step 7

Copy your Google server and sender key from Firebase account and paste that key in One Signal Settings; then click "Save".



Step 8

Copy your One Signal app id and paste that into the build.gradle file. After that, click on "Synchronize" the project.



Step 9

In the MainActivity.java file, copy and paste the below code. Do not replace your package name otherwise the app will not run.

MainActivity.java code

package ganeshannt.onesignal;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;

import com.onesignal.OneSignal;

import org.json.JSONObject;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        OneSignal.startInit(this).setNotificationOpenedHandler(new ExampleNotificationOpenedHandler())
.init();
        setContentView(R.layout.activity_main);
    }

    // This fires when a notification is opened by tapping on it or one is received while the app is running.
    private class ExampleNotificationOpenedHandler implements OneSignal.NotificationOpenedHandler {
@Override
public void notificationOpened(String message, JSONObject additionalData, boolean isActive) {
try {
if (additionalData != null) {
if (additionalData.has("actionSelected"))
 Log.d("OneSignalExample", "OneSignal notification button with id " + additionalData.getString("actionSelected") + " pressed");

Log.d("OneSignalExample", "Full additionalData:\n" + additionalData.toString());
}} catch (Throwable t) {
t.printStackTrace();
}
}}}

Step 10

Click the "Make Project" option and run the app.



Deliverables

Here, we have successfully created and executed the Push Notification Delivery, using One Signal in Android application.











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