最近在做android上有关采用ListView进行信息显示的开发工作，发现有很多实现的方法，不过思想基本是一致的。网上大部分的测试程序采用的是数组存储要显示的信息，但是为了更好地对信息进行管理，我采用的是用对象来存储信息方式。同时我要对item点击事件进行相应，中间遇到了一些困惑，不过都解决了，这里把完整代码分享一下：
首先，list布局文件：
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" tools:context=".ListTestActivity" > <ListView android:id="@+id/listView" android:layout_width="match_parent" android:layout_height="wrap_content" > </ListView></LinearLayout>接着，item布局文件：
<?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="horizontal" > <ImageView android:id="@+id/img" android:layout_width="71dp" android:layout_height="71dp" android:src="@drawable/ic_launcher" /> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical" > <TextView android:id="@+id/title" android:layout_width="242dp" android:layout_height="wrap_content" android:text="222" android:textAppearance="?android:attr/textAppearanceMedium" /> <TextView android:id="@+id/info" android:layout_width="match_parent" android:layout_height="47dp" android:text="11" /> </LinearLayout></LinearLayout>接着，主程序：
package my.test.ListTest;import java.util.ArrayList;import java.util.List;import android.annotation.SuppressLint;import android.app.Activity;import android.content.Context;import android.os.Bundle;import android.view.ContextMenu;import android.view.LayoutInflater;import android.view.MenuItem;import android.view.View;import android.view.ViewGroup;import android.view.ContextMenu.ContextMenuInfo;import android.view.View.OnCreateContextMenuListener;import android.widget.AdapterView;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.ListView;import android.widget.TextView;import android.widget.Toast;import android.widget.AdapterView.OnItemClickListener;@SuppressLint("ParserError")public class ListTestActivity extends Activity { ListView listView; //声明一个ListView对象 private List<info> mlistInfo = new ArrayList<info>(); //声明一个list，动态存储要显示的信息 @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); listView=(ListView)this.findViewById(R.id.listView); //将listView与布局对象关联 setInfo(); //给信息赋值函数，用来测试 listView.setAdapter(new ListViewAdapter(mlistInfo)); //处理Item的点击事件 listView.setOnItemClickListener(new OnItemClickListener(){ public void onItemClick(AdapterView<?> parent, View view,int position, long id) { info getObject = mlistInfo.get(position); //通过position获取所点击的对象 int infoId = getObject.getId(); //获取信息id String infoTitle = getObject.getTitle(); //获取信息标题 String infoDetails = getObject.getDetails(); //获取信息详情 //Toast显示测试 Toast.makeText(ListTestActivity.this, "信息ID:"+infoId,Toast.LENGTH_SHORT).show(); } }); //长按菜单显示 listView.setOnCreateContextMenuListener(new OnCreateContextMenuListener() { public void onCreateContextMenu(ContextMenu conMenu, View view , ContextMenuInfo info) { conMenu.setHeaderTitle("菜单"); conMenu.add(0, 0, 0, "条目一"); conMenu.add(0, 1, 1, "条目二"); conMenu.add(0, 2, 2, "条目三"); } }); } //长按菜单处理函数 public boolean onContextItemSelected(MenuItem aItem) { AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo)aItem.getMenuInfo(); switch (aItem.getItemId()) { case 0: Toast.makeText(ListTestActivity.this, "你点击了条目一",Toast.LENGTH_SHORT).show(); return true; case 1: Toast.makeText(ListTestActivity.this, "你点击了条目二",Toast.LENGTH_SHORT).show(); return true; case 2: Toast.makeText(ListTestActivity.this, "你点击了条目三",Toast.LENGTH_SHORT).show(); return true; } return false; } public class ListViewAdapter extends BaseAdapter { View[] itemViews; public ListViewAdapter(List<info> mlistInfo) { // TODO Auto-generated constructor stub itemViews = new View[mlistInfo.size()]; for(int i=0;i<mlistInfo.size();i++){ info getInfo=(info)mlistInfo.get(i); //获取第i个对象 //调用makeItemView，实例化一个Item itemViews[i]=makeItemView( getInfo.getTitle(), getInfo.getDetails(),getInfo.getAvatar() ); } } public int getCount() { return itemViews.length; } public View getItem(int position) { return itemViews[position]; } public long getItemId(int position) { return position; } //绘制Item的函数 private View makeItemView(String strTitle, String strText, int resId) { LayoutInflater inflater = (LayoutInflater) ListTestActivity.this .getSystemService(Context.LAYOUT_INFLATER_SERVICE); // 使用View的对象itemView与R.layout.item关联 View itemView = inflater.inflate(R.layout.item, null); // 通过findViewById()方法实例R.layout.item内各组件 TextView title = (TextView) itemView.findViewById(R.id.title); title.setText(strTitle); //填入相应的值 TextView text = (TextView) itemView.findViewById(R.id.info); text.setText(strText); ImageView image = (ImageView) itemView.findViewById(R.id.img); image.setImageResource(resId); return itemView; } public View getView(int position, View convertView, ViewGroup parent) { if (convertView == null) return itemViews[position]; return convertView; } } public void setInfo(){ mlistInfo.clear(); int i=0; while(i<10){ info information = new info(); information.setId(1000+i); information.setTitle("标题"+i); information.setDetails("详细信息"+i); information.setAvatar(R.drawable.i2); mlistInfo.add(information); //将新的info对象加入到信息列表中 i++; } }} info类文件：
package my.test.ListTest;public class info { private int id; //信息ID private String title; //信息标题 private String details; //详细信息 private int avatar; //图片ID //信息ID处理函数 public void setId(int id) { this.id = id; } public int getId() { return id; } //标题 public void setTitle(String title) { this.title = title; } public String getTitle() { return title; } //详细信息 public void setDetails(String info) { this.details = info; } public String getDetails() { return details; } //图片 public void setAvatar(int avatar) { this.avatar = avatar; } public int getAvatar() { return avatar; } } 加入图片文件，运行即可！贴上效果图：
