安卓 listView 组件的使用

xml

<ListView android:id="@+id/list1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

java

ListView listView1 = (ListView)findViewById(R.id.list1);
    String[] item = {"文件1","文件2","文件3","文件4"};
    ArrayAdapter<String> adapter = new ArrayAdapter<String>(Context_Menu.this, android.R.layout.simple_dropdown_item_1line, item);
    listView1.setAdapter(adapter);
    //给视图提供上下文菜单
    registerForContextMenu(listView1);