使用ListView和自定义Adapter

使用ListView和自定义Adapter完成列表信息显示，界面如附件图所示

xml布局文件如下：

<?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:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="cn.edu.niit.listview1.MainActivity"
    android:orientation="vertical">
    <ListView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/list"
        android:scrollbars="vertical"/>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/title1"
            android:text="@string/name"/>
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/title2"
            android:text="@string/age"/>
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/title3"
            android:text="@string/mail"/>
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/title4"
            android:text="@string/address"/>
    </LinearLayout>
</LinearLayout>
String的代码如下：

<resources>
    <string name="app_name">ListView1</string>
    <string name="name">名字</string>
    <string name="age">年龄</string>
    <string name="mail">邮箱</string>
    <string name="address">地址</string>
</resources>

效果图如下：

将对象的属性进行封装，给每个属性设置setter方法

public class PersonInfo implements PersonInfo1 {
    private String title1;
    private String title2;
    private String title3;
    private String title4;

    public PersonInfo(String title1, String title2, String title3, String title4) {
        this.title1 = title1;
        this.title2 = title2;
        this.title3 = title3;
        this.title4 = title4;
    }
创建Adapter，将数据加载到ListView

adapter = new SimpleAdapter(
        getActivity(),
        getData(),
        R.layout.activity_main,
        new String[]{"title1", "title2", "title3", "title4"},
        new int[]{R.id.title1, R.id.title2, R.id.title3, R.id.title4});
        ListView listView = (ListView)view.findViewById(R.id.list);
        listView.setAdapter(adapter);
添加每个item的监听事件

@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
    String data = (String) adapterView.getItemAtPosition(position);
通过Map接口添加数据

private List<HashMap<String, Object>> getData(){
    List<HashMap<String, Object>> datas = new ArrayList<>();

    // 给list增加一条数据
    HashMap<String, Object> data = new HashMap<>();
    // Map映射添加数据
    data.put("title1", "蔡志坤");
    data.put("title2", "25");
    data.put("title3", "ffczk86@gmail.com");
    data.put("title4", "厦门市");
    // 将这个map放到list中
    datas.add(data);

    data = new HashMap<>();
    data.put("title1", "李杰华");
    data.put("title2", "25");
    data.put("title3", "aa@bb.com");
    data.put("title4", "漳州市");
    datas.add(data);

    data = new HashMap<>();
    data.put("title1", "张亮");
    data.put("title2", "25");
    data.put("title3", "cc@gmail.com");
    data.put("title4", "厦门市");
    datas.add(data);

    data = new HashMap<>();
    data.put("title1", "刘玄德");
    data.put("title2", "25");
    data.put("title3", "ffczk86@gmail.com");
    data.put("title4", "福州市");
    datas.add(data);

    return datas;
}
重新创建一个java文件

public class CustomAdapter extends BaseAdapter {
    private List dates;
    private Context context;

    //通过构造方法获取所需对象：上下文和数据
    public CustomAdapter(Context context, List dates) {
        this.dates = dates;
        this.context = context;
    }

    @Override
    public int getCount() {
        return dates.size();//一定返回list数据长度
    }

    @Override
    public Object getItem(int i) {
        return dates.get(i);
    }

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

    //自定义adapter重写getView（）方法
    @Override
    public View getView(int i, View view, ViewGroup parent) {
        //获取view
        if (view == null) {
            view = LayoutInflater.from(context).inflate(R.layout.activity_main, null);
        }//获取view中的每个控件对象
        TextView title1 = (TextView) view.findViewById(R.id.title1);
        TextView title2 = (TextView) view.findViewById(R.id.title2);
        TextView title3 = (TextView) view.findViewById(R.id.title3);
        TextView title4 = (TextView) view.findViewById(R.id.title4);

        //给每个view控件赋值
        Classinfo classInfo = datas.get(i);
        title1.setText(classinfo.gettitle1());
        title2.setText(classinfo.getTitle2());
        title3.setText(classinfo.gettitle3());
        title4.setText(classinfo.gettitle4());
        return null;
    }