Popup Menu Programatically | Android Studio | Kotlin

How to create a Popup Menu programmatically?

The Popup Menu in Android displays the menu below the anchor text if space is available otherwise displays above the anchor text. The Popup Menu disappears if you click outside the Popup Menu. The Popup Menu displays different options/choices list so you can select any of them to perform different tasks.

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Step 1: Create a new project OR Open your existing project

Step 2: Code

activity_main.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=".MainActivity">

    <!--Selected option will display here-->
    <TextView
        android:id="@+id/selectedTv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!"
        android:textSize="20sp"
        android:textColor="#000"
        android:textStyle="bold"/>
    <!--button: show popup mennu by clicking it-->
    <Button
        android:id="@+id/showMenuBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Show Popup Menu"
        style="@style/Widget.AppCompat.Button.Colored"/>

</LinearLayout>

MainActivity.kt

package com.blogspot.atifsoftwares.popupmenukotlin

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.view.Menu
import androidx.appcompat.widget.PopupMenu
import kotlinx.android.synthetic.main.activity_main.*

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)


        //init popup menu
        val popupMenu = PopupMenu(
            this,   //context
            showMenuBtn     //UI View, where clicking the view to show the popup menu
        )

        //add menu items to popup menu
        popupMenu.menu.add(Menu.NONE, 0, 0, "Copy") //2nd param is id of the menu item, used to handle click, 3rd param is at which position the item should be displayed, 4th param is the title of the menu item
        popupMenu.menu.add(Menu.NONE, 1, 1, "Share")
        popupMenu.menu.add(Menu.NONE, 2, 2, "Save")
        popupMenu.menu.add(Menu.NONE, 3, 3, "Delete")

        //handle menu item clicks
        popupMenu.setOnMenuItemClickListener { menuItem ->

            //get id of the item clicked
            val id = menuItem.itemId
            //handle clicks
            if (id==0){
                //Copy clicked
                selectedTv.text = "Copy Clicked"
            }
            else if (id==1){
                //Share clicked
                selectedTv.text = "Share Clicked"
            }
            else if (id==2){
                //Save clicked
                selectedTv.text = "Save Clicked"
            }
            else if (id==3){
                //Delete clicked
                selectedTv.text = "Delete Clicked"
            }

            false

        }

        //handle button click, show popup menu
        showMenuBtn.setOnClickListener {
            popupMenu.show()
        }
    }
}

Step 3: Run Project