列表视图仅显示最后一项(Listview displaying only last item)

 我已经编写了一个代码来将json项目显示到listview中，当我调试代码时我可以正确地看到数据，当我将列表设置为listview时我只看到最后一项 
 
 我试过的代码： 
 
 try {
       foodintervallist.clear();
       final String result = response.body().string();
       JSONObject jsonObject = new JSONObject(result);
       String data = jsonObject.getString("data");
       JSONArray foodintervalarray = new JSONArray(data);
       HashMap<String, String> menuMap = 
       new HashMap<String, String>();
       for (int j = 0; j < foodintervalarray.length(); j++) {
            String key1 = "";
            JSONObject jsonObject1 =  
            foodintervalarray.getJSONObject(j);
            final String food_interval =  
            jsonObject1.getString(FOOD_INTERVAL);
            if (jsonObject1.isNull(ITEM_NAME)) {
                item_name = "";
            } else {
                item_name = jsonObject1.getString(ITEM_NAME);            
            }

             if (!menuMap.containsKey(food_interval)) {
                  menuMap.put(food_interval, item_name);
             } else {
                  String key = menuMap.get(food_interval);
                  key1=key+","+item_name;
                  menuMap.put(food_interval, key1);
             }

              runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                foodintervallist.add(menuMap);
                                listViewAdapter = new ListViewAdapter(Diet_Order_Activity_New.this, foodintervallist);
                                listView.setAdapter(listViewAdapter);
                                listViewAdapter.notifyDataSetChanged();
                            }
                        });
}
 
 我的BaseAdapter类 
 
 @Override
public View getView(int position, View convertView, ViewGroup parent) {
    inflater = (LayoutInflater) 
    activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View itemView = inflater.inflate(R.layout.table_row, parent, 
    false);
    resultp = fooditervallist.get(position);
    txtFoodInterval = (TextView) 
    itemView.findViewById(R.id.foodInterval);
    txtFoodItem = (TextView) itemView.findViewById(R.id.foodItems);
    for (Map.Entry<String, String> entry : resultp.entrySet()) {
        String key = entry.getKey();
        String value = entry.getValue();
        txtFoodInterval.setText(key);
        Toast.makeText(activity, "" + key, Toast.LENGTH_LONG).show();
        txtFoodItem.setText(value);
        // do what you have to do here
        // In your case, an other loop.
    }

    return itemView;
}
 
 我在我的主要活动类中全局声明foodintervallist以及我在listcread方法中初始化的listviewadapter 
 
 我在我的arraylist中获取数据，但我只能显示最后一项，该怎么办？ 
 
 感谢名单 

I have written a code to display json items into listview , when i debug the code i can see the data properly , when i am setting the list to the listview i am only seeing the last item 
 
Code i tried :
 
 try {
       foodintervallist.clear();
       final String result = response.body().string();
       JSONObject jsonObject = new JSONObject(result);
       String data = jsonObject.getString("data");
       JSONArray foodintervalarray = new JSONArray(data);
       HashMap<String, String> menuMap = 
       new HashMap<String, String>();
       for (int j = 0; j < foodintervalarray.length(); j++) {
            String key1 = "";
            JSONObject jsonObject1 =  
            foodintervalarray.getJSONObject(j);
            final String food_interval =  
            jsonObject1.getString(FOOD_INTERVAL);
            if (jsonObject1.isNull(ITEM_NAME)) {
                item_name = "";
            } else {
                item_name = jsonObject1.getString(ITEM_NAME);            
            }

             if (!menuMap.containsKey(food_interval)) {
                  menuMap.put(food_interval, item_name);
             } else {
                  String key = menuMap.get(food_interval);
                  key1=key+","+item_name;
                  menuMap.put(food_interval, key1);
             }

              runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                foodintervallist.add(menuMap);
                                listViewAdapter = new ListViewAdapter(Diet_Order_Activity_New.this, foodintervallist);
                                listView.setAdapter(listViewAdapter);
                                listViewAdapter.notifyDataSetChanged();
                            }
                        });
}
 
My BaseAdapter class
 
 @Override
public View getView(int position, View convertView, ViewGroup parent) {
    inflater = (LayoutInflater) 
    activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View itemView = inflater.inflate(R.layout.table_row, parent, 
    false);
    resultp = fooditervallist.get(position);
    txtFoodInterval = (TextView) 
    itemView.findViewById(R.id.foodInterval);
    txtFoodItem = (TextView) itemView.findViewById(R.id.foodItems);
    for (Map.Entry<String, String> entry : resultp.entrySet()) {
        String key = entry.getKey();
        String value = entry.getValue();
        txtFoodInterval.setText(key);
        Toast.makeText(activity, "" + key, Toast.LENGTH_LONG).show();
        txtFoodItem.setText(value);
        // do what you have to do here
        // In your case, an other loop.
    }

    return itemView;
}
 
I am declaring the foodintervallist globally in my main activity class and also the listviewadapter i am initializing inside oncreate method
 
I am getting the data inside my arraylist , but i am able to display only the last item , what to do ?
 
Thanx

原文：https://stackoverflow.com/questions/39467336