Android OptionMenu选项菜单

即menu按钮触发菜单
动态添加/xml形式
menu/main.xml

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

    <item
        android:id="@+id/action_menu_item1"
        android:orderInCategory="100"
        android:showAsAction="never"
        android:title="菜单一"/>
<item
        android:id="@+id/action_menu_item2"
        android:orderInCategory="100"
        android:showAsAction="never"
        android:title="菜单二"/>
</menu>

MainActivity.java

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
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);
        MenuItem item = menu.add(1, 100, 1, "菜单一");
        item.setTitle("aaa");
        item.setIcon(R.drawable.ic_launcher);// api>=11 不显示图标 ，
        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;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // TODO Auto-generated method stub
        switch (item.getItemId()) {
        case 100:
            Intent intent = new Intent(MainActivity.this, SecondActivity.class);
            item.setIntent(intent);
            break;

        case 101:
            Toast.makeText(MainActivity.this, "点击了菜单二", Toast.LENGTH_SHORT)
                    .show();
            break;
        case 102:
            Toast.makeText(MainActivity.this, "点击了菜单三", Toast.LENGTH_SHORT)
                    .show();
            break;
        case 103:
            Toast.makeText(MainActivity.this, "点击了菜单四", Toast.LENGTH_SHORT)
                    .show();
            break;
        case 104:
            Toast.makeText(MainActivity.this, "点击了菜单五", Toast.LENGTH_SHORT)
                    .show();
            break;
        case 105:
            Toast.makeText(MainActivity.this, "点击了菜单六", Toast.LENGTH_SHORT)
                    .show();
            break;
        case 106:
            Toast.makeText(MainActivity.this, "点击了菜单七", Toast.LENGTH_SHORT)
                    .show();
            break;
        }
        return super.onOptionsItemSelected(item);
    }
}

演示效果：