Question

这里我附上我的问题和代码的快照。它只显示内容作为对象，但完美地显示了组名。这个问题的快照在下面的链接中给出，只是通过这个图像

“http://imageupload.org/?d=4DA941521”（快照）

=＆GT;我想要特定组名的子数据，但我得到组名而不是子数据。

此代码

package com.bestdambikers;
import android.app.ListActivity;
import android.content.Context;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

public class SectionedDemo extends ListActivity {


    String strUrl = "http://192.168.5.10/ijoomer_development/index.php?option=com_ijoomer&plg_name=jomsocial&pview=user&ptask=field_list&userid=80&sessionid="+ConstantData.session_id+"&tmpl=component";
      DetailBean dBean;
      XmlParser parser;
      ArrayList<Object>  result;
      List<DetailBean> list;

    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        setContentView(R.layout.header_main);

        //dBean = new DetailBean();
        parser = new XmlParser(strUrl, new DetailBean());
        result = parser.ParseUrl("data", "group");
        int r = result.size();

        for(int i=0; i<result.size(); i++)
        {

            dBean = (DetailBean)result.get(i);
            list=Arrays.asList(dBean);
            Collections.shuffle(list);
            adapter.addSection(dBean.group_name,
                new ArrayAdapter<DetailBean>(this,
                        android.R.layout.simple_list_item_1,
                        list));
        }
        setListAdapter(adapter);
    }

    SectionedAdapter adapter=new SectionedAdapter() {
        protected View getHeaderView(String caption, int index,
                View convertView,
                ViewGroup parent) {
            TextView result=(TextView)convertView;

            if (convertView==null) {
                result=(TextView)getLayoutInflater()
                .inflate(R.layout.header,
                        null);
            }

            result.setText(caption);

            return(result);
        }
    };
}

DetailBean.java

public class DetailBean
{
    public String data = null;
    public String code = null;
    public String fields = null;
    public String group_name = null;
    public String field = null;
    public String id = null;
    public String name = null;
    public String value = null;
    public String status = null;
    public String required = null;
    public String type = null;

    public DetailBean()
    {
        this("","","","","","","","","","","");
    }

    public DetailBean(String data,String code,String fields, String group_name,String field, String id,String name,String value,String status,String required,String type)
    {
        this.data = data;
        this.code = code;
        this.fields = fields;
        this.group_name = group_name;
        this.field = field;
        this.id = id;
        this.name = name;
        this.value = value;
        this.status = status;
        this.required = required;
        this.type = type;
    }

}

Answer 1

看起来您在String方法的getHeaderView参数中获得了caption，该参数由detailBeanInstance.toString（）生成。

您应该覆盖DetailBean类中的toString方法以返回您想要的内容。

这样的覆盖将是：

@Override
public String toString()
{
    //You should populate this string with the data 
    //you need inside the TextView
    return this.group_name + " " + this.data;
}

将上面的方法放在DetailBean类中，所以它看起来像：

public class DetailBean
{
    // You should use private members, and create getters and setters to them
    public String data = null;
    public String code = null;
    public String fields = null;
    public String group_name = null;
    public String field = null;
    public String id = null;
    public String name = null;
    public String value = null;
    public String status = null;
    public String required = null;
    public String type = null;

    public DetailBean()
    {
        this("", "", "", "", "", "", "", "", "", "", "");
    }

    public DetailBean(String data, String code, String fields, 
            String group_name, String field, String id, String name,
            String value, String status, String required, String type)
    {
        this.data = data;
        this.code = code;
        this.fields = fields;
        this.group_name = group_name;
        this.field = field;
        this.id = id;
        this.name = name;
        this.value = value;
        this.status = status;
        this.required = required;
        this.type = type;
    }

    @Override
    public String toString()
    {
        // You should populate this string with the data
        // you need inside the TextView
        return this.group_name + " " + this.data;
    }
}

Answer 2

您的DetailBean缺少toString()方法，以便从父级（即Object）获取方法，只打印类名+地址。

Answer 3

一个简单的解决方案可能是更新DetailBean以包括重写toString方法以检索DetailBean对象所需的任何String表示。

（啊。我被殴打了4分钟和2分钟。）

显示对象而不是字符串

3 个答案: