ContextMenu(上下文菜单)

public class MainActivity extends ActionBarActivity {

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

	/*
	 * *显示ListView
	 */
	private void ShowListView()
	{
		//在主布局文件里记得添加LIstView控件
		ListView listview=(ListView) findViewById(R.id.listview);
		ArrayAdapter<String> adp=new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, getString());
		listview.setAdapter(adp);
		this.registerForContextMenu(listview);
	}
	/*
	 * 创建列表适配器需要的列表项字符串集合
	 */
	private ArrayList<String> getString()
	{
		ArrayList<String> list=new ArrayList<String>();
		for(int i=0;i<5;i++)
		{
			list.add("菜单"+i);
		}
		return list;
	}
	/*
	 * 上下文菜单内容添加方法
	 */
	@Override
	public void onCreateContextMenu(ContextMenu menu, View v,
			ContextMenuInfo menuInfo) {
		// TODO Auto-generated method stub
		menu.setHeaderTitle("上下文");
		menu.setHeaderIcon(R.drawable.ic_launcher);
		//通过Menu里的布局文件来添加菜单项
		MenuInflater inflater=getMenuInflater();
		inflater.inflate(R.menu.main, menu);
		//动态添加菜单项
//		menu.add(1, 1, 1, "复制");
//		menu.add(1, 2, 1, "黏贴");
//		menu.add(1, 3, 1, "剪切");
//		menu.add(1, 4, 1, "重命名");
		super.onCreateContextMenu(menu, v, menuInfo);
	}
	/*
	 * 添加菜单选项点击事件
	 */
	@Override
	public boolean onContextItemSelected(MenuItem item) {
		// TODO Auto-generated method stub
		switch(item.getItemId())
		{
		//点击判断是由于用两种添加菜单项的方式，所以对应两种ID判断
//		case 1:
//			Toast.makeText(this, "点击了复制", Toast.LENGTH_SHORT).show();
//			break;
//		case 2:
//			Toast.makeText(this, "点击了黏贴", Toast.LENGTH_SHORT).show();
//			break;
//		case 3:
//			Toast.makeText(this, "点击了剪切", Toast.LENGTH_SHORT).show();
//			break;
//		case 4:
//			Toast.makeText(this, "点击了重命名", Toast.LENGTH_SHORT).show();
//			break;
		case R.id.action_settings1:
			Toast.makeText(this, "点击了复制", Toast.LENGTH_SHORT).show();
			break;
		case R.id.action_settings2:
			Toast.makeText(this, "点击了黏贴", Toast.LENGTH_SHORT).show();
			break;
		case R.id.action_settings3:
			Toast.makeText(this, "点击了剪切", Toast.LENGTH_SHORT).show();
			break;
		case R.id.action_settings4:
			Toast.makeText(this, "点击了重命名", Toast.LENGTH_SHORT).show();
			break;
		}
		return super.onContextItemSelected(item);
	}
}

//menu文件夹里的main文件

<pre name="code" class="html"><menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    tools:context="com.example.xin.sxw.MainActivity" >

    <item
        android:id="@+id/action_settings1"
        android:orderInCategory="100"
        android:title="复制"
        app:showAsAction="never"/>
    <item
        android:id="@+id/action_settings2"
        android:orderInCategory="100"
        android:title="黏贴"
        app:showAsAction="never"/>
    <item
        android:id="@+id/action_settings3"
        android:orderInCategory="100"
        android:title="剪切"
        app:showAsAction="never"/>
    <item
        android:id="@+id/action_settings4"
        android:orderInCategory="100"
        android:title="重命名"
        app:showAsAction="never"/>

</menu>