Android应用开发笔记 - 项目代码2

1.2 菜单
    MainActivity.java
[java]
package com.example.testmenu;

import android.os.Bundle;
import android.app.Activity;
import android.view.ContextMenu;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {

    private static final int MENU_FILE_1 = Menu.FIRST;
    private static final int MENU_EXIT_2 = Menu.FIRST + 1;

    String[] phones = {
            "HTC Rezound", "Samsung Galaxy S II Skyrocket",
            "Samsung Galaxy Nexus", "Motorola Droid Razr",
            "Samsung Galaxy S", "Samsung Epic Touch 4G",
            "iPhone 4S", "HTC Titan"
            };

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        ListView listView = (ListView) findViewById(R.id.list01);

        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, R.layout.listitem,
                phones);

        listView.setAdapter(adapter);

        registerForContextMenu(listView);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        //getMenuInflater().inflate(R.menu.activity_main, menu);
        MenuInflater menuInflater = getMenuInflater();
        menuInflater.inflate(R.menu.my_menu, menu);
        return true;
    }

    @Override
    public void onCreateContextMenu(ContextMenu menu, View v,
            ContextMenuInfo menuInfo) {
        // TODO Auto-generated method stub
        if (v.getId() == R.id.list01) {
            MenuInflater popmenuInflater = getMenuInflater();
            popmenuInflater.inflate(R.menu.pop_menu, menu);
            super.onCreateContextMenu(menu, v, menuInfo);
        }
    }

    @Override
    public boolean onContextItemSelected(MenuItem item) {
        // TODO Auto-generated method stub
        TextView text = (TextView) findViewById(R.id.footer);

        switch (item.getItemId()) {
        case R.id.edt01:
            text.setText("Edit Selected");

            return true;

        case R.id.del01:
            text.setText("Delete Selected");

            return true;

        case R.id.about01:
            Toast.makeText(this, "This is software author: xiaobin.", Toast.LENGTH_SHORT).show();

            return true;

        default:

            return super.onContextItemSelected(item);
        }
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // TODO Auto-generated method stub
        switch (item.getItemId()) {
        case MENU_FILE_1:
            fileMenu();

            break;

        case MENU_EXIT_2:
            exitMenu();

            break;

        default:
            break;
        }

        return false;
    }

    p

补充：移动开发 , Android ,