ListView控件：（3）BaseAdapter适配器生成

1.编写BaseAdapterActivity.java类

package com.example.yun;
 
import java.util.ArrayList;
import java.util.HashMap;
 
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
 
public class BaseAdapterActivity extends Activity {
 
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_baseadapter);
 
    ListView baseListView = (ListView) findViewById(R.id.baseListView);
    MyAdapter mAdapter = new MyAdapter(this);// 得到一个MyAdapter对象
    baseListView.setAdapter(mAdapter);// 为ListView绑定Adapter
 
  }
 
  private class MyAdapter extends BaseAdapter {
 
    private LayoutInflater mInflater;// 得到一个LayoutInfalter对象用来导入布局
 
    /** 构造函数 */
    public MyAdapter(Context context) {
      this.mInflater = LayoutInflater.from(context);
    }
 
    @Override
    public int getCount() {
      // TODO Auto-generated method stub
      return getData().size();
    }
 
    @Override
    public Object getItem(int arg0) {
      // TODO Auto-generated method stub
      return null;
    }
 
    @Override
    public long getItemId(int arg0) {
      // TODO Auto-generated method stub
      return 0;
    }
 
    @Override
    public View getView(final int position, View convertView,
        ViewGroup parent) {
      // TODO Auto-generated method stub
 
      ViewHolder holder;
      // 观察convertView随ListView滚动情
 
      if (convertView == null) {
        convertView = mInflater.inflate(R.layout.item_base, null);
        holder = new ViewHolder();
        /** 得到各个控件的对象 */
        holder.title = (TextView) convertView
            .findViewById(R.id.ItemTitle);
        holder.text = (TextView) convertView
            .findViewById(R.id.ItemText);
        holder.bt = (Button) convertView.findViewById(R.id.ItemButton);
        convertView.setTag(holder);// 绑定ViewHolder对象
      } else {
        holder = (ViewHolder) convertView.getTag();// 取出ViewHolder对象
      }
      /** 设置TextView显示的内容，即我们存放在动态数组中的数据 */
      holder.title.setText(getData().get(position).get("ItemTitle")
          .toString());
      holder.text.setText(getData().get(position).get("ItemText")
          .toString());
 
      /** 为Button添加点击事件 */
      holder.bt.setOnClickListener(new View.OnClickListener() {
 
        @Override
        public void onClick(View arg0) {
          // TODO Auto-generated method stub
          // Log.v("MyListViewBase", "你点击了按钮" +
          // position);//打印Button的点击信息
          Toast.makeText(BaseAdapterActivity.this,
              "你点击了按钮" + position, Toast.LENGTH_LONG).show();
        }
      });
 
      return convertView;
 
    }
  }
 
  private ArrayList<HashMap<String, Object>> getData() {
    ArrayList<HashMap<String, Object>> listItem = new ArrayList<HashMap<String, Object>>();
    /** 为动态数组添加数据 */
    for (int i = 0; i < 30; i++) {
      HashMap<String, Object> map = new HashMap<String, Object>();
      map.put("ItemTitle", "第" + i + "行");
      map.put("ItemText", "这是第" + i + "行");
      listItem.add(map);
    }
    return listItem;
  }
 
  public final class ViewHolder {
    public TextView title;
    public TextView text;
    public Button bt;
  }
 
}

2.编写activity_baseadapter.xml布局类

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#ffffff"
    android:orientation="vertical" >
 
    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="160dp"
        android:background="@drawable/bg02" >
    </RelativeLayout>
 
    <ListView
        android:id="@+id/baseListView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </ListView>
 
</LinearLayout>

类

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >
 
    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical" >
 
        <TextView
            android:id="@+id/ItemTitle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="#ff00ff"
            android:textSize="30px" />
    </LinearLayout>
 
    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="horizontal" >
 
        <ImageView
            android:id="@+id/imageView1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="right"
            android:maxWidth="100px"
            android:src="@drawable/ic_launcher" />
 
        <Button
            android:id="@+id/ItemButton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="left"
            android:text="Button" />
 
        <TextView
            android:id="@+id/ItemText"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </LinearLayout>
 
</LinearLayout>

4.执行结果