Android Custom 3 dot menu example java

Step 1:

File open res/layout/activity_main.xml file −

<?xml version="1.0" encoding="utf-8"?>
<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:id="@+id/main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <androidx.appcompat.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        tools:ignore="MissingConstraints" />

</androidx.constraintlayout.widget.ConstraintLayout>

Step 2:

Create menu xml app/res>new>Android Resource Directory>Resource type:menu / menu_item.xml file −

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <item
        android:icon="@drawable/more_icon"
        android:title=""
        app:showAsAction="always">

        <menu>
            <item
                android:id="@+id/home_menu"
                android:icon="@drawable/home_icon"
                android:iconTint="#D00707"
                android:title="Home"
                app:showAsAction="never" />
            <item
                android:id="@+id/movie_menu"
                android:icon="@drawable/movie_icon"
                android:iconTint="#D00707"
                android:title="Movie"
                app:showAsAction="never" />
            <item
                android:id="@+id/Series_menu"
                android:icon="@drawable/dubbed_icon"
                android:iconTint="#D00707"
                android:title="Seies"
                app:showAsAction="never" />
            <item
                android:id="@+id/natok_menu"
                android:icon="@drawable/natok_icon"
                android:iconTint="#D00707"
                android:title="Natok"
                app:showAsAction="never" />
            <item
                android:id="@+id/dubbed_menu"
                android:icon="@drawable/dubbed_icon"
                android:iconTint="#D00707"
                android:title="Dubbed"
                app:showAsAction="never" />
        </menu>
    </item>
</menu>

Step 2:

File open com.microappvalley.newtestproject/MainActivity.java file −

package com.example.a3dotmenu;
import android.annotation.SuppressLint;
import android.graphics.Color;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;

public class MainActivity extends AppCompatActivity {

    Toolbar toolbar;

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

        toolbar = findViewById(R.id.toolbar);
        
        //set title
        toolbar.setTitle("Practice Toolbar");
        
        //change colors
        toolbar.setBackgroundColor(Color.RED);
        toolbar.setTitleTextColor(Color.WHITE);
        setSupportActionBar(toolbar);
    }

    //inflate menu_item xml
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_item, menu);
        return true;
    }

    //click item to open toast
    @Override
    public boolean onOptionsItemSelected(@NonNull MenuItem item) {
        int id = item.getItemId();
        if (id == R.id.home_menu) {
            Toast.makeText(MainActivity.this, "Home", Toast.LENGTH_SHORT).show();
        }
        if (id == R.id.movie_menu) {
            Toast.makeText(MainActivity.this, "Movie", Toast.LENGTH_SHORT).show();
        }
        if (id == R.id.Series_menu) {
            Toast.makeText(MainActivity.this, "Series", Toast.LENGTH_SHORT).show();
        }
        if (id == R.id.natok_menu) {
            Toast.makeText(MainActivity.this, "Natok", Toast.LENGTH_SHORT).show();
        }
        if (id == R.id.dubbed_menu) {
            Toast.makeText(MainActivity.this, "Dubbing", Toast.LENGTH_SHORT).show();
        }
        return true;
    }
}

Open Device Manager, run the emulator, and  then run the application. Next, check the working output and check the output  you declared in your code.

Output: