How To Use Local Notifications In Android Studio Updated Version

Local Notification Using Java 
 Local Notification is not like push notification when information is received from the server side then we use push notification. 

 Push Notification is not part of your Current app, we have to use Android Notification Chanales we should request to the android through NotificationManger Class then we can send messages to the Android panel to show on Notification.

 

    Steps To Show Notification:

XML file:

<androidx.constraintlayout.widget.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/button"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Hello World!"

        app:layout_constraintBottom_toBottomOf="parent"

        app:layout_constraintEnd_toEndOf="parent"

        app:layout_constraintStart_toStartOf="parent"

        app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLay

 

 

Java Code:                

public class MainActivity extends AppCompatActivity {

public static final String NOTIFICATION_ID="1";

    public static final String NOTIFICATION_NAME="Example";

NotificationManager notificationManager;

@Override

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

ActivityMainBinding binding = ActivityMainBinding.inflate(getLayoutInflater());

setContentView(binding.getRoot());

notificationManager=(NotificationManager) getSystemService(NOTIFICATION_SERVICE);

binding.button.setOnClickListener(v->{

            NotificationCompat.Builder n= new NotificationCompat.Builder(getApplicationContext(),NOTIFICATION_ID);

n.setContentTitle("My Notification");

n.setContentText("All Things Worked");

n.setSmallIcon(R.drawable.ic_android_black_24dp);

notificationManager.notify(1,n.build());

});

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

            getNotification();

}

    }

    @RequiresApi(api = Build.VERSION_CODES.O)
    private void getNotification() {
        NotificationChannel notificationChannel= new NotificationChannel(NOTIFICATION_ID,NOTIFICATION_NAME,NotificationManager.IMPORTANCE_HIGH);
                            notificationChannel.enableVibration(true);
                            notificationManager.createNotificationChannel(notificationChannel);

    }
}