Free Tutorial Notification with action buttons - Java

Free Tutorial Android Studio Show Notification, Add action button, handle button clicks

In this tutorial we will learn the followings:
✓How to show notifications
✓How to add action buttons in notification
✓Handle action button clicks

Step 1: Create a new project OR Open your project

Step 2: Create two activities 1) LikeActivity 2) DislikeActivity

Step 3: Code

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <Button
        android:id="@+id/showNotificationBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Show Notification"
        style="@style/Base.Widget.AppCompat.Button.Colored"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</android.support.constraint.ConstraintLayout>

MainActivity.java

package com.blogspot.adtechofficial.simplenotification;

import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Build;
import android.support.v4.app.NotificationCompat;
import android.support.v4.app.NotificationManagerCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

    //there can be multiple notifications so it can be used as notification identity
    private static final String CHANNEL_ID = "channel_id01";
    public static final int NOTIFICATION_ID = 1;

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

        Button showNotificattionBtn = findViewById(R.id.showNotificationBtn);
        showNotificattionBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //click button to show notification
                showNotification();
            }
        });
    }

    private void showNotification() {

        createNotificationChannel();

        //start this(MainActivity) on by Tapping notification
        Intent mainIntent = new Intent(this, MainActivity.class);
        mainIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
        PendingIntent mainPIntent = PendingIntent.getActivity(this, 0, mainIntent, PendingIntent.FLAG_ONE_SHOT);

        //Click Like button to start LikeActivity
        Intent likeIntent = new Intent(this, LikeActivity.class);
        likeIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
        PendingIntent likePIntent = PendingIntent.getActivity(this, 0, likeIntent, PendingIntent.FLAG_ONE_SHOT);

        //Click Dislike button to start DislikeActivity
        Intent disIntent = new Intent(this, DislikeActivity.class);
        disIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
        PendingIntent dislikePIntent = PendingIntent.getActivity(this, 0, disIntent, PendingIntent.FLAG_ONE_SHOT);


        //creating notification
        NotificationCompat.Builder builder = new NotificationCompat.Builder(this, CHANNEL_ID);
        //icon
        builder.setSmallIcon(R.drawable.ic_notification);
        //title
        builder.setContentTitle("Title of Notification");
        //description
        builder.setContentText("This is the description of the notification");
        //set priority
        builder.setPriority(NotificationCompat.PRIORITY_DEFAULT);
        //dismiss on tap
        builder.setAutoCancel(true);
        //start intent on notification tap (MainActivity)
        builder.setContentIntent(mainPIntent);

        //add action buttons to notification
        //icons will not displayed on Android 7 and above
        builder.addAction(R.drawable.ic_like, "Like", likePIntent);
        builder.addAction(R.drawable.ic_dislike, "Dislike", dislikePIntent);

        //notification manager
        NotificationManagerCompat notificationManagerCompat = NotificationManagerCompat.from(this);
        notificationManagerCompat.notify(NOTIFICATION_ID, builder.build());

    }

    private void createNotificationChannel() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O){

            CharSequence name = "My Notification";
            String description = "My notification description";
            //importance of your notification
            int importance = NotificationManager.IMPORTANCE_DEFAULT;

            NotificationChannel notificationChannel = new NotificationChannel(CHANNEL_ID, name, importance);
            notificationChannel.setDescription(description);

            NotificationManager notificationManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);

            notificationManager.createNotificationChannel(notificationChannel);
        }
    }
}

like_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:gravity="center"
    tools:context=".LikeActivity">

    <TextView
        android:textSize="40sp"
        android:text="Like"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

LikeActivity.java

package com.blogspot.adtechofficial.simplenotification;

import android.app.ActionBar;
import android.app.NotificationManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class LikeActivity extends AppCompatActivity {

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

        setTitle("Like");

        //dismiss notification on Like button click
        NotificationManager notificationManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
        notificationManager.cancel(MainActivity.NOTIFICATION_ID);
    }
}

dislike_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:gravity="center"
    tools:context=".DislikeActivity">

    <TextView
        android:textSize="40sp"
        android:text="Dislike"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

DislikeActivity.java

package com.blogspot.adtechofficial.simplenotification;

import android.app.NotificationManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class DislikeActivity extends AppCompatActivity {

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

        setTitle("Dislike");

        //dismiss notification on Dislike button click
        NotificationManager notificationManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
        notificationManager.cancel(MainActivity.NOTIFICATION_ID);
    }
}

Step 4: Run Project

Output

Notification with action buttons - Java

wong ngaur