메뉴 - 체크메뉴

Main.xml

 

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

 

    <item

        android:id="@+id/submenu"

        android:title="Sub Menu">

        <menu>

            <group

                android:id="@+id/checkable_group"

                android:checkableBehavior="all" >

                <item

                    android:id="@+id/bigfont"

                    android:title="Big Font"/>

            </group>

            <group

                android:id="@+id/checkable_group2"

                android:checkableBehavior="single" >

                <item

                     android:id="@+id/red"

                    android:title="Red"

                    android:checked="true"/>

                <item

                     android:id="@+id/green"

                    android:title="Green"/>

                <item

                     android:id="@+id/blue"

                    android:title="Blue"/>

            </group>

        </menu>

    </item>

 

</menu>

 

 

package com.example.optionmenuex02;

 

import android.os.Bundle;

 

import android.app.Activity;

import android.view.Menu;

import android.view.MenuItem;

import android.widget.Toast;

 

public class MainActivity extends Activity {

 

     boolean bigfont;

     String color ="";

 

     @Override

     protected void onCreate(Bundle savedInstanceState) {

           super.onCreate(savedInstanceState);

           setContentView(R.layout.activity_main);

     }

 

     @Override

     public boolean onCreateOptionsMenu(Menu menu) {

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

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

           return true;

     }

 

     @Override

     public boolean onPrepareOptionsMenu(Menu menu) {

           // TODO Auto-generated method stub

           if (bigfont) {

                menu.findItem(R.id.bigfont).setChecked(true);

           } else {

                menu.findItem(R.id.bigfont).setChecked(false);

           }

          

          if(color.equals("red")) menu.findItem(R.id.red).setChecked(true);

           if(color.equals("green")) menu.findItem(R.id.green).setChecked(true);

           if(color.equals("blue")) menu.findItem(R.id.blue).setChecked(true);

          

           return true;

     }

 

     @Override

     public boolean onOptionsItemSelected(MenuItem item) {

           // TODO Auto-generated method stub

           switch (item.getItemId()) {

           case R.id.bigfont:

               Toast.makeText(this, "bigfont", Toast.LENGTH_SHORT).show();

                if (bigfont) {

                     bigfont = false;

                } else {

                     bigfont = true;

                }

                return true;

           case R.id.red:

                Toast.makeText(this, "red", Toast.LENGTH_SHORT).show();

                color = "red";

                return true;

           case R.id.green:

                Toast.makeText(this, "green", Toast.LENGTH_SHORT).show();

                color = "green";

                return true;

           case R.id.blue:

                Toast.makeText(this, "blue", Toast.LENGTH_SHORT).show();

                color = "blue";

                return true;

          

           }

 

           return false;

     }

 

}