Android 程式开发：（十二）列表控件 —— 12.3 ListView的总结范例

使用一个例子，来总结一下ListView的基本使用。

1、新建一个工程：ListViewDemo。

2、main.xml中的代码。

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <Button android:id="@+id/btn" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Show selected items" android:onClick="onClick"/> <ListView android:id="@+id/android:list" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </LinearLayout>3、Strings.xml中的代码。

<?xml version="1.0" encoding="utf-8"?> <resources> <string name="hello">Hello World, BasicViews5Activity!</string> <string name="app_name">BasicViews5</string> <string-array name="presidents_array"> <item>Dwight D. Eisenhower</item> <item>John F. Kennedy</item> <item>Lyndon B. Johnson</item> <item>Richard Nixon</item> <item>Gerald Ford</item> <item>Jimmy Carter</item> <item>Ronald Reagan</item> <item>George H. W. Bush</item> <item>Bill Clinton</item> <item>George W. Bush</item> <item>Barack Obama</item> </string-array> </resources>4、ListViewDemo中的代码。public class ListViewDemo extends ListActivity { String[] presidents; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); ListView lstView = getListView(); //lstView.setChoiceMode(ListView.CHOICE_MODE_NONE); //lstView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); lstView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE); lstView.setTextFilterEnabled(true); presidents = getResources().getStringArray(R.array.presidents_array); setListAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_checked, presidents)); } public void onListItemClick( ListView parent, View v, int position, long id) { Toast.makeText(this, "You have selected " + presidents[position], Toast.LENGTH_SHORT).show(); } // for button click event public void onClick(View view) { ListView lstView = getListView(); String itemsSelected = "Selected items: \n"; for (int i=0; i<lstView.getCount(); i++) { if (lstView.isItemChecked(i)) { itemsSelected += lstView.getItemAtPosition(i) + "\n"; } } Toast.makeText(this, itemsSelected, Toast.LENGTH_LONG).show(); } }5、按F11在模拟器上面调试。在ListView中选择一些物件，然后点击上面的Button，就会显示出哪些物件被选择了。

ListView的功能远不止如此，比如设置ListView的动画，自动义ListView的显示和滑动模式，等等等。请大家在工作和学习中自己发掘吧~~~