操作栏和列表视图（ArrayList）

问题描述

添加ListView后，操作栏不可见，能否请您告诉我使其再次可见？此外，如何在此Java文件中创建SearchView？

MainActivity.java

public class MainActivity extends ListActivity {

    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);

        // 1. pass context and data to the custom adapter
        MyAdapter adapter = new MyAdapter(this, generateData());

        //2. setListAdapter
        setListAdapter(adapter);
    }

    private ArrayList<Item> generateData(){
        ArrayList<Item> items = new ArrayList<Item>();
        items.add(new Item("item1","description1"));
        items.add(new Item("item2", "description2"));
        items.add(new Item("item3", "description3"));

        return items;

    }
}