在Activity里显示列表（ListView的布局）

在Activity里显示列表（ListView的布局）

新建一个继承Activity类的ListViewActivity，并设置布局文件为：listview.xml。

在布局文件中添加一个ListView即可。

<ListView         android:id="@+id/listview_lv"         android:layout_width="fill_parent"         android:layout_height="fill_parent"         android:choiceMode="multipleChoice" />

在Activity代码中设置即可。

 

package lyx.feng.second; ...... public class ListViewActivity extends Activity {     // 定义组件     private ListView lv = null;     // 定义适配器     private ArrayAdapter<String> adapter = null;     // 定义字符串数组     private String item[] = new String[20];       @Override     protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        super.setContentView(R.layout.listview);        // 初始化字符串数组        for (int i = 0; i < item.length; i++) {            item[i] = "Item" + String.valueOf(i);        }        // 实例化适配器        adapter = new ArrayAdapter<String>(this,               android.R.layout.simple_list_item_multiple_choice, this.item);        this.lv = (ListView) super.findViewById(R.id.listview_lv);        // 绑定适配器        lv.setAdapter(adapter);        // ItemClick事件        lv.setOnItemClickListener(new OnItemClickListener() {              @Override            public void onItemClick(AdapterView<?> parent, View view,                   int position, long id) {               Toast.makeText(ListViewActivity.this,                      "ItemClick：" + item[position], Toast.LENGTH_SHORT)                      .show();            }        });        // ItemSlected事件        lv.setOnItemSelectedListener(new OnItemSelectedListener() {              @Override            public void onItemSelected(AdapterView<?> parent, View view,                   int position, long id) {               Toast.makeText(ListViewActivity.this,                      "ItemSelected：" + item[position], Toast.LENGTH_SHORT)                      .show();            }              @Override            public void onNothingSelected(AdapterView<?> parent) {              }        });        // ItemLongClick事件        lv.setOnItemLongClickListener(new OnItemLongClickListener() {              @Override            public boolean onItemLongClick(AdapterView<?> parent, View view,                   int position, long id) {               Toast.makeText(ListViewActivity.this,                      "ItemLongClick：" + item[position], Toast.LENGTH_SHORT)                      .show();               return false;            }        });       } }