ListView的子item自定义布局跟数据的填充

listview的数据填充有三种方法，这里我就说一下子item自定义布局这种数据填充方法，下面就直接上代码了：

listview的布局文件：listview.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <ListView
        android:id="@+id/listView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </ListView>

</LinearLayout>

listview的子item布局文件：item.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal" >
    <!--这里的orientation属性根据子item布局所需进行设计  -->

    <TextView
        android:id="@+id/textView1"
        android:layout_width="0dp"
        android:layout_weight="1"
        android:gravity="center"
        android:layout_height="wrap_content"
        android:text="TextView" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="0dp"
        android:layout_weight="1"
        android:gravity="center"
        android:layout_height="wrap_content"
        android:layout_marginLeft="5dp"
        android:text="TextView" />

    <TextView
        android:id="@+id/textView3"
        android:layout_width="0dp"
        android:layout_weight="1"
        android:gravity="center"
        android:layout_height="wrap_content"
        android:layout_marginLeft="5dp"
        android:text="TextView" />
<!-- 这里设置权重是为让布局看起来均匀分配，根据实际情况相应调整 -->
</LinearLayout>

接下来就是Java代码了，ListViewAty.class

public class ListViewAty extends Activity {
	private ListView listView ;
	private List<Map<String,Object>> mList = new ArrayList<Map<String,Object>>();

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.listview);
		listView = (ListView)findViewById(R.id.listView1);
		setAdapter();
	}
	public void setAdapter(){
		ListViewApt lvApt = new ListViewApt(this);

                //这里的数据只是用于演示用，根据实际情况填充数据
		for(int i=0;i<5;i++){
			Map<String,Object> map = new HashMap<String,Object>();
			map.put("name1", "张三"+i+("a"+i));
			map.put("name2", "李四"+i+("a"+i));
			map.put("name3", "王五"+i+("a"+i));
			mList.add(map);
		}
		lvApt.init(mList);
		listView.setAdapter(lvApt);
	}
}

ListView的适配器文件，ListViewApt.class

public class ListViewApt extends BaseAdapter {
	private List<Map<String,Object>> data = new ArrayList<Map<String,Object>>();
	private Context context;
	private LayoutInflater mLayoutInflater;
	public ListViewApt(Context context){
		this.context = context;
		mLayoutInflater = LayoutInflater.from(context);
	}
	public void init(List<Map<String,Object>> list){
		data = list;
	}
	@Override
	public int getCount() {
		return data.size();
	}

	@Override
	public Object getItem(int arg0) {
		return null;
	}

	@Override
	public long getItemId(int position) {
		return position;
	}

	@Override
	public View getView(int position, View view, ViewGroup arg2) {
		ViewHolder holder;
		if(view == null){
			holder = new ViewHolder();
			view = mLayoutInflater.inflate(R.layout.item, null);
			holder.tv1 = (TextView)view.findViewById(R.id.tv1);
			holder.tv2 = (TextView)view.findViewById(R.id.tv2);
			holder.tv3 = (TextView)view.findViewById(R.id.tv3);
			view.setTag(holder);
		}else{
			holder = (ViewHolder)view.getTag();
		}
		holder.tv1.setText((String)data.get(position).get("name1"));
		holder.tv2.setText((String)data.get(position).get("name2"));
		holder.tv3.setText((String)data.get(position).get("name3"));
		return view;
	}
	public class ViewHolder{
		public TextView tv1,tv2,tv3;
	}
}

最后我们来看下效果图吧