动态添加SubMenu子菜单-蒲公英云

动态添加SubMenu子菜单

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.submenu"
    android:versionCode="1"
    android:versionName="1.0" >
    <uses-sdk
        android:minSdkVersion="15"
        android:targetSdkVersion="20" />
    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:theme="@android:style/Theme.Light.NoTitleBar" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
</manifest>
package com.example.submenu;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.SubMenu;
import android.widget.Toast;
public class MainActivity extends Activity {
    @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);
        SubMenu file=menu.addSubMenu("文件");
        SubMenu edit=menu.addSubMenu("编辑");
        file.setHeaderTitle("文件操作");
        file.setHeaderIcon(R.drawable.ic_launcher);
        file.add(1,1,1,"新建");
        file.add(1,2,1,"打开");
        file.add(1,3,1,"保存");
        edit.setHeaderTitle("编辑操作");
        edit.setHeaderIcon(R.drawable.ic_launcher);
        edit.add(2,1,1,"复制");
        edit.add(2,2,1,"粘贴");
        edit.add(2,3,1,"剪切");
        return true;
    }
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
//        int id = item.getItemId();
//        if (id == R.id.action_settings) {
//            return true;
//        }
        if(item.getGroupId()==1){
            switch (item.getItemId()) {
            case 1:
                Toast.makeText(MainActivity.this,"点击了新建",Toast.LENGTH_SHORT).show();
                break;
            case 2:
                Toast.makeText(MainActivity.this,"点击了打开",Toast.LENGTH_SHORT).show();
                break;
            case 3:
                Toast.makeText(MainActivity.this,"点击了保存",Toast.LENGTH_SHORT).show();
                break;
            default:
                break;
            }
        }
        else if(item.getGroupId()==2){
            switch (item.getItemId()) {
            case 1:
                Toast.makeText(MainActivity.this,"点击了复制",Toast.LENGTH_SHORT).show();
                break;
            case 2:
                Toast.makeText(MainActivity.this,"点击了粘贴",Toast.LENGTH_SHORT).show();
                break;
            case 3:
                Toast.makeText(MainActivity.this,"点击了剪切",Toast.LENGTH_SHORT).show();
                break;
            default:
                break;
            }    
        }
        return super.onOptionsItemSelected(item);
    }
}