下面是我在网上找的android自定义适配器的例子,我改了下,完成每列按钮事件!简单但记下
activity_main.xml/*主UIActivity*/
<RelativeLayout 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"
tools:context=".MainActivity" >
<ListView
android:id="@+id/listView"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
</RelativeLayout>
list.xml /*列表Activity*/
<?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/p_w_picpath"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5px"/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFFFF"
android:textSize="22px"/>
<TextView
android:id="@+id/info"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFFFF"
android:textSize="13px"/>
</LinearLayout>
<Button
android:id="@+id/view_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="click me"
android:gravity="center" />
</LinearLayout>
MainActivity.java
/*主Activity*/
public class MainActivity extends Activity {
ListView listView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listView = (ListView)findViewById(R.id.listView);
MyAdapter adapter = new MyAdapter(this,getData());
listView.setAdapter(adapter);
}
/**
* 构造hashMap集合
*/
private ArrayList<HashMap<String, Object>> getData(){
ArrayList<HashMap<String, Object>> arrayList = new ArrayList<HashMap<String,Object>>();
for(int i=0;i<10;i++){
HashMap<String, Object> tempHashMap = new HashMap<String, Object>();
tempHashMap.put("p_w_picpath", R.drawable.ic_launcher);
tempHashMap.put("title", "标题"+i);
tempHashMap.put("info", "描述性信息");
arrayList.add(tempHashMap);
}
return arrayList;
}
}
ZuJian.java
/**
* 每个列表里面的组件
*/
public final class ZuJian {
public ImageView p_w_picpathView;
public TextView titleView;
public TextView infoView;
public Button button;
}
自定义的Adapter
/**
* 自定义Adapter 实现按钮事件
* 主要学会LayoutInflater及理解列表按钮事件是一种绑定原理
*
*/
public class MyAdapter extends BaseAdapter {
private ArrayList<HashMap<String, Object>> dataList;//外面构造进来的数据List
private LayoutInflater inflater;//可以将Layout文件变为View
private Context context;
public MyAdapter(Context context, ArrayList<HashMap<String, Object>> dataList) {
this.context = context;
this.dataList = dataList;
inflater = LayoutInflater.from(context);
}
@Override
public int getCount() {//创建完对象后会立刻执行此方法
return dataList.size();
}
@Override
public Object getItem(int arg0) {
return dataList.get(arg0);
}
@Override
public long getItemId(int arg0) {
return arg0;
}
/**
* 在列表每列创建的时候调用此方法,可以在里面的主键里加事件了
* convertView 每一列对象
*/
@Override
public View getView(int position, View convertView, ViewGroup arg2) {
ZuJian zuJian = null;
if(convertView==null){
zuJian = new ZuJian();
// 获取组件布局
convertView = inflater.inflate(R.layout.list, null);
zuJian.p_w_picpathView = (ImageView) convertView.findViewById(R.id.p_w_picpath);
zuJian.titleView = (TextView) convertView.findViewById(R.id.title);
zuJian.infoView = (TextView) convertView.findViewById(R.id.info);
zuJian.button = (Button) convertView.findViewById(R.id.view_btn);
// 这里要注意,是使用的tag来存储数据的。
convertView.setTag(zuJian);
}
else {
zuJian = (ZuJian) convertView.getTag();
}
final String title = (String)dataList.get(position).get("title");
// 绑定数据、以及事件触发
zuJian.p_w_picpathView.setBackgroundResource((Integer)
dataList.get(position).get("p_w_picpath"));
zuJian.titleView.setText(title);
zuJian.infoView.setText((String)dataList.get(position).get("info"));
//给button绑定事件
zuJian.button.setOnClickListener(new OnClickListener(){
public void onClick(View v) {
showInfo(title);
}
});
/**
* 给每个view绑定一个长按事件
*/
convertView.setOnLongClickListener(new OnLongClickListener(){
@Override
public boolean onLongClick(View v) {
new AlertDialog.Builder(context)
.setTitle("我的listview")
.setMessage(title)
.setPositiveButton("确定", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}}).show();
return false;
}
}); return convertView;
}
/**
*当用户点击按钮时触发的事件,会弹出一个确认对话框
*可具体根据业务而定
*/
public void showInfo(String title){
new AlertDialog.Builder(context)
.setTitle("我的listview")
.setMessage("介绍..."+title)
.setPositiveButton("确定", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}}).show(); } }