Enable/Disable menu item dynamically

This example show how to enable/disable menu item dynamically using Java code, set with ToggleButton.

Dynamic enable/disable Menu Item

MainActivity.java

package com.example.androiddynamicmenu;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.CompoundButton;
import android.widget.Toast;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ToggleButton;

public class MainActivity extends Activity {
 
 ToggleButton btn1, btn2, btn3;
 Menu myMenu;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  
  btn1 = (ToggleButton)findViewById(R.id.option1);
  btn2 = (ToggleButton)findViewById(R.id.option2);
  btn3 = (ToggleButton)findViewById(R.id.option3);
  
  btn1.setOnCheckedChangeListener(btnOnCheckedChangeListener);
  btn2.setOnCheckedChangeListener(btnOnCheckedChangeListener);
  btn3.setOnCheckedChangeListener(btnOnCheckedChangeListener);
 }
 
 OnCheckedChangeListener btnOnCheckedChangeListener =
  new OnCheckedChangeListener(){

   @Override
   public void onCheckedChanged(CompoundButton buttonView, 
     boolean isChecked) {
    if(myMenu != null){
     if(buttonView==btn1){
      myMenu.findItem(R.id.menuopt1)
      .setEnabled(isChecked);
     }else if(buttonView==btn2){
      myMenu.findItem(R.id.menuopt2)
      .setEnabled(isChecked);
     }else if(buttonView==btn3){
      myMenu.findItem(R.id.menuopt3)
      .setEnabled(isChecked);
     }
    }
    
   }};

 @Override
 public boolean onCreateOptionsMenu(Menu menu) {
  getMenuInflater().inflate(R.menu.main, menu);
  myMenu = menu;
  return true;
 }

 @Override
 public boolean onOptionsItemSelected(MenuItem item) {
  switch(item.getItemId()){
  case R.id.menuopt1:
   Toast.makeText(MainActivity.this, 
    "menuopt1", 
    Toast.LENGTH_SHORT).show();
   break;
  case R.id.menuopt2:
   Toast.makeText(MainActivity.this, 
    "menuopt2", 
    Toast.LENGTH_SHORT).show();
   break;
  case R.id.menuopt3:
   Toast.makeText(MainActivity.this, 
    "menuopt3", 
    Toast.LENGTH_SHORT).show();
   break;
  }
  return super.onOptionsItemSelected(item);
 }

}

/res/menu/main.xml

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

    <item
        android:id="@+id/menuopt1"
        android:orderInCategory="100"
        android:showAsAction="ifRoom"
        android:title="Menu Option 1"/>
    <item
        android:id="@+id/menuopt2"
        android:orderInCategory="100"
        android:showAsAction="ifRoom"
        android:title="Menu Option 2"/>
    <item
        android:id="@+id/menuopt3"
        android:orderInCategory="100"
        android:showAsAction="ifRoom"
        android:title="Menu Option 3"/>

</menu>

/res/layout/activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:autoLink="web"
        android:text="http://android-er.blogspot.com/"
        android:textStyle="bold" />

    <ToggleButton
        android:id="@+id/option1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:checked="true"
        android:text="Option 1" />
    <ToggleButton
        android:id="@+id/option2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:checked="true"
        android:text="Option 2" />
    <ToggleButton
        android:id="@+id/option3"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:checked="true"
        android:text="Option 3" />

</LinearLayout>

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