android ListView简单用法

<?xml version="1.0" encoding="utf⑻"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" > <ListView android:id="@+id/ListView" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </LinearLayout>

<?xml version="1.0" encoding="utf⑻"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:paddingBottom="4dp" android:paddingLeft="12dp" android:paddingRight="12dp" > <ImageView android:id="@+id/ItemImage" android:layout_width="50dp" android:layout_height="50dp" android:layout_alignParentRight="true" android:paddingTop="10dp" /> <TextView android:id="@+id/ItemTitle" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="TextView01" android:textSize="20dp" /> <TextView android:id="@+id/ItemText" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_below="@+id/ItemTitle" android:text="TextView02" /> </RelativeLayout>

package com.chay.listviewtest; import java.util.ArrayList; import java.util.HashMap; import android.os.Bundle; import android.app.Activity; import android.view.ContextMenu; import android.view.MenuItem; import android.view.View; import android.view.ContextMenu.ContextMenuInfo; import android.view.View.OnCreateContextMenuListener; import android.widget.AdapterView; import android.widget.ListView; import android.widget.SimpleAdapter; import android.widget.AdapterView.OnItemClickListener; public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // 绑定Layout里面的ListView ListView list = (ListView) findViewById(R.id.ListView); // 生成动态数组，加入数据 ArrayList<HashMap<String, Object>> listItem = new ArrayList<HashMap<String, Object>>(); for (int i = 0; i < 16; i++) { HashMap<String, Object> map = new HashMap<String, Object>(); map.put("ItemImage", R.drawable.img_checked);// 图象资源的ID map.put("ItemTitle", "Level " + i); map.put("ItemText", "Custom content! Custom content! "); listItem.add(map); } // 生成适配器的Item和动态数组对应的元素 SimpleAdapter listItemAdapter = new SimpleAdapter(this, listItem,// 数据源 R.layout.list_items,// ListItem的XML实现 // 动态数组与ImageItem对应的子项 new String[] { "ItemImage", "ItemTitle", "ItemText" }, // ImageItem的XML文件里面的1个ImageView,两个TextView ID new int[] { R.id.ItemImage, R.id.ItemTitle, R.id.ItemText }); // 添加并且显示 list.setAdapter(listItemAdapter); // 添加点击 list.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { setTitle("点击第" + arg2 + "项"); } }); // 添加长按点击 list.setOnCreateContextMenuListener(new OnCreateContextMenuListener() { @Override public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { menu.setHeaderTitle("长按菜单-ContextMenu"); menu.add(0, 0, 0, "弹出长按菜单0"); menu.add(0, 1, 0, "弹出长按菜单1"); } }); } // 长按菜单响应函数 @Override public boolean onContextItemSelected(MenuItem item) { setTitle("点击了长按菜单的第" + item.getItemId() + "项"); return super.onContextItemSelected(item); } }