Android Menus

Android Menus (Options, Context, Popup)

In android, Menu is a part of user interface (UI) component which is used to handle some common functionality around the application. Android Menu is a user interface component used in many types of applications

Android Different Types of Menus:-

In android, we have a three fundamental type of Menus available to define a set of options and actions in our android applications.

Following are the commonly used Menus in android applications.

v  Options Menu

v  Context Menu

v  Popup Menu

Android Options Menu:-

In android, Options Menu is a primary collection of menu items for an Activity and it is useful to implement actions that have a global impact on the app, such as Settings, Search, etc.

Android Option Menu Example:-.

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>

<android.support.design.widget.CoordinatorLayout 

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="example.javatpoint.com.optionmenu.MainActivity">

    <android.support.design.widget.AppBarLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar

            android:id="@+id/toolbar"

            android:layout_width="match_parent"

            android:layout_height="?attr/actionBarSize"

            android:background="?attr/colorPrimary"

            app:popupTheme="@style/AppTheme.PopupOverlay" />

    </android.support.design.widget.AppBarLayout>

    <include layout="@layout/content_main" />

 context_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"

    app:layout_behavior="@string/appbar_scrolling_view_behavior"

    tools:context="example.javatpoint.com.optionmenu.MainActivity"

    tools:showIn="@layout/activity_main">

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Hello World!"

        app:layout_constraintBottom_toBottomOf="parent"

        app:layout_constraintLeft_toLeftOf="parent"

        app:layout_constraintRight_toRightOf="parent"

        app:layout_constraintTop_toTopOf="parent" />

</android.support.constraint.ConstraintLayout>

  

File: menu_main.xml

<menu 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"

    tools:context="example.javatpoint.com.optionmenu.MainActivity">

    <item  android:id="@+id/item1"

        android:title="Item 1"/>

    <item  android:id="@+id/item2"

        android:title="Item 2"/>

    <item  android:id="@+id/item3"

        android:title="Item 3"

        app:showAsAction="withText"/>

</menu>  

 MainActivity.java

import android.os.Bundle;

import android.support.v7.app.AppCompatActivity;

import android.support.v7.widget.Toolbar;

import android.view.Menu;

import android.view.MenuItem;

import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);

        setSupportActionBar(toolbar);

    }

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        // Inflate the menu; this adds items to the action bar if it is present.  

        getMenuInflater().inflate(R.menu.menu_main, menu);

        return true;

    }

    @Override

    public boolean onOptionsItemSelected(MenuItem item) {

        int id = item.getItemId();

        switch (id){

            case R.id.item1:

                Toast.makeText(getApplicationContext(),"Item 1 Selected",Toast.LENGTH_LONG).show();

                return true;

            case R.id.item2:

                Toast.makeText(getApplicationContext(),"Item 2 Selected",Toast.LENGTH_LONG).show();

                return true;

            case R.id.item3:

                Toast.makeText(getApplicationContext(),"Item 3 Selected",Toast.LENGTH_LONG).show();

                return true;

            default:

                return super.onOptionsItemSelected(item);

        }

    }

}  

Android Context Menu:-

In android, Context Menu is a floating menu that appears when the user performs

a long click on an element and it is useful to implement an actions that effect 

the selected content or context frame.

activity_main.xml:-

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical" >

    <Button

        android:id="@+id/btnShow"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Long press me"

        android:layout_marginTop="200dp" android:layout_marginLeft="100dp"/>

</LinearLayout>

MainActivity.java

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.ContextMenu;

import android.view.MenuItem;

import android.view.View;

import android.widget.Button;

import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        Button btn = (Button) findViewById(R.id.btnShow);

        registerForContextMenu(btn);

    }

    @Override

    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {

        super.onCreateContextMenu(menu, v, menuInfo);

        menu.setHeaderTitle("Context Menu");

        menu.add(0, v.getId(), 0, "Upload");

        menu.add(0, v.getId(), 0, "Search");

        menu.add(0, v.getId(), 0, "Share");

        menu.add(0, v.getId(), 0, "Bookmark");

    }

    @Override

    public boolean onContextItemSelected(MenuItem item) {

        Toast.makeText(this, "Selected Item: " +item.getTitle(), Toast.LENGTH_SHORT).show();

        return true;

    }

}

Android Popup Menu

In android, Popup Menu displays a list of items in a vertical list that’s anchored to the view

that invoked the menu and it’s useful for providing an overflow of actions that related to specific

 content.

Android Popup Menu Example

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical" >

    <Button

        android:id="@+id/btnShow"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Show Popup Menu"

        android:layout_marginTop="200dp" android:layout_marginLeft="100dp"/>

</LinearLayout>

popup_menu.xml

<?xml version="1.0" encoding="utf-8"?>

<menu xmlns:android="http://schemas.android.com/apk/res/android" >

    <item android:id="@+id/search_item"

        android:title="Search" />

    <item android:id="@+id/upload_item"

        android:title="Upload" />

    <item android:id="@+id/copy_item"

        android:title="Copy" />

    <item android:id="@+id/print_item"

        android:title="Print" />

    <item android:id="@+id/share_item"

        android:title="Share" />

    <item android:id="@+id/bookmark_item"

        android:title="BookMark" />

</menu>

MainActivity.java

package com.tutlane.popupmenuexample;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.MenuItem;

import android.view.View;

import android.widget.Button;

import android.widget.PopupMenu;

import android.widget.Toast;

public class MainActivity extends AppCompatActivity implements PopupMenu.OnMenuItemClickListener {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        Button btn = (Button) findViewById(R.id.btnShow);

        btn.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                PopupMenu popup = new PopupMenu(MainActivity.this, v);

                popup.setOnMenuItemClickListener(MainActivity.this);

                popup.inflate(R.menu.popup_menu);

                popup.show();

            }

        });

    }

    @Override

    public boolean onMenuItemClick(MenuItem item) {

        Toast.makeText(this, "Selected Item: " +item.getTitle(), Toast.LENGTH_SHORT).show();

        switch (item.getItemId()) {

            case R.id.search_item:

                // do your code

                return true;

            case R.id.upload_item:

                // do your code

                return true;

            case R.id.copy_item:

                // do your code

                return true;

            case R.id.print_item:

                // do your code

                return true;

            case R.id.share_item:

                // do your code

                return true;

            case R.id.bookmark_item:

                // do your code

                return true;

            default:

                return false;

        }

    }

}