动态添加菜单项

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package com.example.optionsmenu;import android.app.Activity;import android.os.Bundle;import android.view.Menu;import android.view.MenuItem;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);    menu.add(1,100,1,"菜单一");    menu.add(1,101,1,"菜单二");    menu.add(1,102,1,"菜单三");    menu.add(1,103,1,"菜单四");    menu.add(1,104,1,"菜单五");    menu.add(1,105,1,"菜单六");    menu.add(1,106,1,"菜单七");        return true;    }        //重写onOptionsItemSelected方法    @Override    public boolean onOptionsItemSelected(MenuItem item) {    // TODO Auto-generated method stub    switch (item.getItemId()) {case 100:Toast.makeText(MainActivity.this,"点击了菜单一",Toast.LENGTH_LONG).show();break;        case 101:        Toast.makeText(MainActivity.this,"点击了菜单二",Toast.LENGTH_LONG).show();break;        case 102:        Toast.makeText(MainActivity.this,"点击了菜单三",Toast.LENGTH_LONG).show();break;        case 103:        Toast.makeText(MainActivity.this,"点击了菜单四",Toast.LENGTH_LONG).show();break;        case 104:        Toast.makeText(MainActivity.this,"点击了菜单五",Toast.LENGTH_LONG).show();break;        case 105:        Toast.makeText(MainActivity.this,"点击了菜单六",Toast.LENGTH_LONG).show();break;        case 106:        Toast.makeText(MainActivity.this,"点击了菜单七",Toast.LENGTH_LONG).show();break;default:break;}    return super.onOptionsItemSelected(item);    }//    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.item_menu1) {//            return true;//        }//        return super.onOptionsItemSelected(item);//    }}
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