java - 将 JSONObject 获取到字符串数组值时出现问题

Question

您好，我在获取 JSONObject 值标题并将其存储到数组中时遇到问题。

public class ViewPagerAdapter extends PagerAdapter 
{   
// JSON Node names
     private static final String TAG_CATEGORIESLIST = "categorylist";
     private static final String TAG_TITLE = "title";
     private static final String TAG_URL = "url";
     public static String[] titles;
     public final Context context;
     public int[] scrollPosition;
     JSONArray categories = null; 
     JSONObject json;
     {
         try {
                JSONFunction JSONFunction = new JSONFunction();
               json = JSONFunction.categorylist();
               // Getting Array of Categories
               categories = json.getJSONArray(TAG_CATEGORIESLIST);
                // looping through All Categories
               for(int i = 0; i < categories.length(); i++){
                JSONObject c = categories.getJSONObject(i);
                // Storing each json item in variable
                String title = c.getString(TAG_TITLE);
                String url = c.getString(TAG_URL); 
                titles = new String[] {title}; //only obtain one result
                scrollPosition = new int[titles.length];
            }

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

我的titles只得到一个值，需要你们的帮助。
插件:

我正在使用Viewpagerindicator库，显示标题的默认代码是tat

private static String[] titles = new String[] { "Page 1", "Page 2", "Page 3", "Page 4", "Page 5"};

我正在尝试将 json 数据输入其中。谢谢。

Answer 1

您没有增加标题数组

改变这个

 titles = new String[] {title};//Because of this your last retrived  value will be stored in titles

到

 titles[i] = title;