Android 数组适配器getview仅显示最后一个值

我是android新手，我正在使用array adapter实现自定义listview，在我的arraylist中我有10个不同的值，但当我将此值设置为listview时，它只显示最后一个视图。我非常困惑，请澄清我的疑问

for (int i = 0; i<a ; i++) {

     JSONObject jsonObject = jsonArray.getJSONObject(i);

     messageObject = new AllMessageObject();

     messageObject.setFrom_name(jsonObject.getString(FROM_NAME));
     System.out.println("jsonObject.getString(FROM_NAME) "+i+" "+jsonObject.getString(FROM_NAME));
     messageObject.setMessage(jsonObject.getString(MESSAGE));
     System.out.println("jsonObject.getString(MESSAGE) "+i+" "+jsonObject.getString(MESSAGE));
     messageObject.setMessage_date(jsonObject.getString(MESSAGE_DATE));
     System.out.println("jsonObject.getString(MESSAGE_DATE) "+i+" "+jsonObject.getString(MESSAGE_DATE));

     arrayOfList.add(messageObject);
 }

这是我的阵列适配器

public class GetAllmessageAdapter extends ArrayAdapter<AllMessageObject>{


public List<AllMessageObject> marrayOfList;
public Context context;
AllMessageObject messageObject;
int row;

public GetAllmessageAdapter(Context context, int textViewResourceId,
        List<AllMessageObject> arrayOfList) {
    super(context, textViewResourceId,arrayOfList);
    this.marrayOfList = arrayOfList;
    this.context=context;
    this.row=textViewResourceId;
}

 public Context getContext() {
        return context;
    }

public int getCount(){
    return this.marrayOfList.size();
}

@Override
public View getView(final int position, View convertView, ViewGroup parent) {
    // TODO Auto-generated method stub
//  return super.getView(position, convertView, parent);
    System.out.println("in get view");
    ViewHolder holder;

    if(convertView==null){

        LayoutInflater Inflator = (LayoutInflater) context
                .getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
        convertView=Inflator.inflate(row, null);

        holder = new ViewHolder();

        convertView.setTag(holder);

    }else
        holder = (ViewHolder) convertView.getTag();

    messageObject=marrayOfList.get(position);

     holder.user_name = (TextView) convertView.findViewById(R.id.textView1);
     holder.message = (TextView) convertView.findViewById(R.id.textView2);
     holder.from_name = (TextView) convertView.findViewById(R.id.textView4);
     holder.user_img=(ImageView) convertView.findViewById(R.id.imageview1);

    if(holder.message!=null && messageObject.getMessage().length()>0){
        holder.message.setText(messageObject.getMessage());
    }

    if(holder.from_name!=null && messageObject.getFrom_name().length()>0){
        holder.from_name.setText(messageObject.getFrom_name());
    }

//  holder.user_img.setImageResource(R.drawable.fb);

    holder.user_name.setText(messageObject.getMessage_date());

    return convertView; 
}

 /*private view holder class*/
public class ViewHolder {
    ImageView user_img;
    TextView user_name;
    TextView message,from_name;
}

for (int i = 0; i<a ; i++) {

     JSONObject jsonObject = jsonArray.getJSONObject(i);

     messageObject = new AllMessageObject();

     messageObject.setFrom_name(jsonObject.getString(FROM_NAME));
     System.out.println("jsonObject.getString(FROM_NAME) "+i+" "+jsonObject.getString(FROM_NAME));
     messageObject.setMessage(jsonObject.getString(MESSAGE));
     System.out.println("jsonObject.getString(MESSAGE) "+i+" "+jsonObject.getString(MESSAGE));
     messageObject.setMessage_date(jsonObject.getString(MESSAGE_DATE));
     System.out.println("jsonObject.getString(MESSAGE_DATE) "+i+" "+jsonObject.getString(MESSAGE_DATE));

     arrayOfList.add(messageObject);
 }

公共类GetAllmessageAdapter扩展了ArrayAdapter{
公开结婚名单；
公共语境；
所有消息对象消息对象；
int行；
public GetAllmessageAdapter（上下文，int textViewResourceId，
列表（列表列表）{
超级（上下文、textViewResourceId、arrayOfList）；
this.marrayoff列表=arrayOfList；
this.context=context；
this.row=textViewResourceId；
}
公共上下文getContext（）{
返回上下文；
}
public int getCount（）{
返回此.marrayOfList.size（）；
}
@凌驾
公共视图getView（最终整数位置、视图转换视图、视图组父视图）{
//TODO自动生成的方法存根
//返回super.getView（position、convertView、parent）；
System.out.println（“获取视图中”）；
视窗座；
if（convertView==null）{
LayoutFlater充气器=（LayoutFlater）上下文
.getSystemService（活动.布局\充气机\服务）；
convertView=充气机。充气（世界其他地区，空）；
holder=新的ViewHolder（）；
convertView.setTag（支架）；
}否则
holder=（ViewHolder）convertView.getTag（）；
messageObject=marrayOfList.get（位置）；
holder.user_name=（TextView）convertView.findViewById（R.id.textView1）；
holder.message=（TextView）convertView.findViewById（R.id.textView2）；
holder.from_name=（TextView）convertView.findViewById（R.id.textView4）；
holder.user_img=（ImageView）convertView.findViewById（R.id.imageview1）；
if（holder.message！=null&&messageObject.getMessage（）.length（）>0）{
holder.message.setText（messageObject.getMessage（））；
}
if（holder.from_name！=null&&messageObject.getFrom_name（）.length（）>0）{
holder.from_name.setText（messageObject.getFrom_name（））；
}
//holder.user\u img.setImageResource（R.drawable.fb）；
holder.user_name.setText（messageObject.getMessage_date（））；
返回视图；
}
/*私有视图持有者类*/
公共类视图持有者{
ImageView用户界面；
TextView用户名；
TextView消息，来自_name；
}

以下是我如何从我的活动中解脱出来

protected String doInBackground(String... params) {
        // TODO Auto-generated method stub

        System.out.println("background");
        SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME1);

        // Use this to add parameters
        request.addProperty("UserId",
                "fd83ca17-41f5-472a-8efe-7a975d83ed9b");
        request.addProperty("FacebookId", "100006693371290");
        request.addPropertyIfValue("count", "6");

        // Declare the version of the SOAP request
        SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(
                SoapEnvelope.VER11);
        envelope.setOutputSoapObject(request);
        envelope.dotNet = true;
        try {

            HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
            androidHttpTransport.debug = true;

            // this is the actual part that will call the webservice

            androidHttpTransport.call(SOAP_ACTION1, envelope);
            SoapObject soap_result = (SoapObject) envelope.bodyIn;
            System.out.println("soap_result  " + soap_result);
            result = soap_result.getProperty(0).toString();
            System.out.println("result in message activity " + result);

            JSONArray jsonArray = new JSONArray(result);
            int a=jsonArray.length();
            System.out.println("a "+a);

            for (int i = 0; i<a ; i++) {

                JSONObject jsonObject = jsonArray.getJSONObject(i);

                messageObject = new AllMessageObject();

                messageObject.setFrom_name(jsonObject.getString(FROM_NAME));
                System.out.println("jsonObject.getString(FROM_NAME) "+i+" "+jsonObject.getString(FROM_NAME));
                messageObject.setMessage(jsonObject.getString(MESSAGE));
                System.out.println("jsonObject.getString(MESSAGE) "+i+" "+jsonObject.getString(MESSAGE));
                messageObject.setMessage_date(jsonObject.getString(MESSAGE_DATE));
                System.out.println("jsonObject.getString(MESSAGE_DATE) "+i+" "+jsonObject.getString(MESSAGE_DATE));
            }

            arrayOfList.add(messageObject);


        } catch (Exception e) {
            e.printStackTrace();
        }

        return null;
    }

    @Override
    protected void onPostExecute(String result) {
        // TODO Auto-generated method stub
        super.onPostExecute(result);
        System.out.println("on post");

        adapter=new GetAllmessageAdapter(Woosuite_Message.this, R.layout.list_row, arrayOfList);
        listView.setAdapter(adapter);

    }

for (int i = 0; i<a ; i++) {

     JSONObject jsonObject = jsonArray.getJSONObject(i);

     messageObject = new AllMessageObject();

     messageObject.setFrom_name(jsonObject.getString(FROM_NAME));
     System.out.println("jsonObject.getString(FROM_NAME) "+i+" "+jsonObject.getString(FROM_NAME));
     messageObject.setMessage(jsonObject.getString(MESSAGE));
     System.out.println("jsonObject.getString(MESSAGE) "+i+" "+jsonObject.getString(MESSAGE));
     messageObject.setMessage_date(jsonObject.getString(MESSAGE_DATE));
     System.out.println("jsonObject.getString(MESSAGE_DATE) "+i+" "+jsonObject.getString(MESSAGE_DATE));

     arrayOfList.add(messageObject);
 }

受保护的字符串doInBackground（字符串…参数）{
//TODO自动生成的方法存根
系统输出打印项次（“背景”）；
SoapObject请求=新的SoapObject（名称空间，方法\名称1）；
//使用此选项可以添加参数
request.addProperty（“UserId”，
“fd83ca17-41f5-472a-8efe-7a975d83ed9b”）；
请求。addProperty（“FacebookId”，“100006693371290”）；
请求。addPropertyIfValue（“计数”，“6”）；
//声明SOAP请求的版本
SoapSerializationEnvelope=新的SoapSerializationEnvelope(
第11版）；
envelope.setOutputSoapObject（请求）；
envelope.dotNet=true；
试一试{
HttpTransportSE androidHttpTransport=新的HttpTransportSE（URL）；
androidHttpTransport.debug=true；
//这是将调用webservice的实际部分
调用（SOAP_ACTION1，信封）；
SoapObject soap_result=（SoapObject）envelope.bodyIn；
System.out.println（“soap\u结果”+soap\u结果）；
result=soap_result.getProperty（0）.toString（）；
System.out.println（“导致消息活动”+结果）；
JSONArray JSONArray=新JSONArray（结果）；
int a=jsonArray.length（）；
系统输出打印项次（“a”+a）；
对于（int i=0；i首先，您将消息对象添加到for循环外部的arrayOfList中。因此，它将只执行一次。尝试将该行放入for循环内部，以获得添加到arraylist的所有值

for (int i = 0; i<a ; i++) {

     JSONObject jsonObject = jsonArray.getJSONObject(i);

     messageObject = new AllMessageObject();

     messageObject.setFrom_name(jsonObject.getString(FROM_NAME));
     System.out.println("jsonObject.getString(FROM_NAME) "+i+" "+jsonObject.getString(FROM_NAME));
     messageObject.setMessage(jsonObject.getString(MESSAGE));
     System.out.println("jsonObject.getString(MESSAGE) "+i+" "+jsonObject.getString(MESSAGE));
     messageObject.setMessage_date(jsonObject.getString(MESSAGE_DATE));
     System.out.println("jsonObject.getString(MESSAGE_DATE) "+i+" "+jsonObject.getString(MESSAGE_DATE));

     arrayOfList.add(messageObject);
 }

对于（int i=0；i请像这样更改您的try块

for (int i = 0; i<a ; i++) {

     JSONObject jsonObject = jsonArray.getJSONObject(i);

     messageObject = new AllMessageObject();

     messageObject.setFrom_name(jsonObject.getString(FROM_NAME));
     System.out.println("jsonObject.getString(FROM_NAME) "+i+" "+jsonObject.getString(FROM_NAME));
     messageObject.setMessage(jsonObject.getString(MESSAGE));
     System.out.println("jsonObject.getString(MESSAGE) "+i+" "+jsonObject.getString(MESSAGE));
     messageObject.setMessage_date(jsonObject.getString(MESSAGE_DATE));
     System.out.println("jsonObject.getString(MESSAGE_DATE) "+i+" "+jsonObject.getString(MESSAGE_DATE));

     arrayOfList.add(messageObject);
 }

try {

            HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
            androidHttpTransport.debug = true;

            // this is the actual part that will call the webservice

            androidHttpTransport.call(SOAP_ACTION1, envelope);
            SoapObject soap_result = (SoapObject) envelope.bodyIn;
            System.out.println("soap_result  " + soap_result);
            result = soap_result.getProperty(0).toString();
            System.out.println("result in message activity " + result);

            JSONArray jsonArray = new JSONArray(result);
            int a=jsonArray.length();
            System.out.println("a "+a);

            for (int i = 0; i<a ; i++) {

                JSONObject jsonObject = jsonArray.getJSONObject(i);

                messageObject = new AllMessageObject();

                messageObject.setFrom_name(jsonObject.getString(FROM_NAME));
                System.out.println("jsonObject.getString(FROM_NAME) "+i+" "+jsonObject.getString(FROM_NAME));
                messageObject.setMessage(jsonObject.getString(MESSAGE));
                System.out.println("jsonObject.getString(MESSAGE) "+i+" "+jsonObject.getString(MESSAGE));
                messageObject.setMessage_date(jsonObject.getString(MESSAGE_DATE));
                System.out.println("jsonObject.getString(MESSAGE_DATE) "+i+" "+jsonObject.getString(MESSAGE_DATE));
                arrayOfList.add(messageObject);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

试试看{
HttpTransportSE androidHttpTransport=新的HttpTransportSE（URL）；
androidHttpTransport.debug=true；
//这是将调用webservice的实际部分
调用（SOAP_ACTION1，信封）；
SoapObject soap_result=（SoapObject）envelope.bodyIn；
System.out.println（“soap\u结果”+soap\u结果）；
result=soap_result.getProperty（0）.toString（）；
System.out.println（“导致消息活动”+结果）；
JSONArray JSONArray=新JSONArray（结果）；
int a=jsonArray.length（）；
系统输出打印项次（“a”+a）；
对于（int i=0；我知道您已将messageObject添加到循环之外。这将仅将最后一个元素添加到arrayOfList。很棒的nanba…非常感谢我浪费了一个小时在getview中查看…再次感谢