Java 通过嵌套JSON对象循环嵌套并将值保存在数组列表中

Java 通过嵌套JSON对象循环嵌套并将值保存在数组列表中,java,android,json,Java,Android,Json,我有一个JSON对象,如下所示 {"PAYLOAD":[{"pid":"4","title":"Kyamaiko Flats","long":"36.764880000","lat":"-1.342980800","volume":125,"value":"10000","active":"Y","contractor":"SS mehta and Sons","subContractor":"Kamau Njoro","cp":[{"contactPerson":"Njoroge","desi

我有一个JSON对象,如下所示

{"PAYLOAD":[{"pid":"4","title":"Kyamaiko Flats","long":"36.764880000","lat":"-1.342980800","volume":125,"value":"10000","active":"Y","contractor":"SS mehta and Sons","subContractor":"Kamau Njoro","cp":[{"contactPerson":"Njoroge","designation":"Architect"},{"contactPerson":"John","designation":"Quantity suveyor"}],"lastvisit":"2 months ago ","nextvisit":"10/12/2013 ""image_url":"http:\\www.someurl.net\images\avator.png"}]}
要获得这些值,我使用以下代码:

try{

                JSONArray  mot = json.getJSONArray("PAYLOAD");
                    for(int i=0;i<mot.length();i++){                        
                        HashMap<String, String> map = new HashMap<String, String>();        
                        JSONObject e = mot.getJSONObject(i);
                        map.put(KEY_NAME_ID, e.getString(KEY_NAME_ID));
                        map.put(KEY_NAME, e.getString(KEY_NAME));
                        map.put(KEY_LAT, e.getString(KEY_LAT));
                        map.put(KEY_LON, e.getString(KEY_LON));
                        map.put(KEY_VOLUME, e.getString(KEY_VOLUME));
                        map.put(KEY_VALUE, e.getString(KEY_VALUE));
                        map.put(KEY_ACCOUNT_STATUS, e.getString(KEY_ACCOUNT_STATUS));
                        map.put(KEY_CONTRACTOR, e.getString(KEY_CONTRACTOR));
                        map.put(KEY_SUB_CONTRACTOR, e.getString(KEY_SUB_CONTRACTOR));

                        JSONArray  cp = json.getJSONArray(KEY_CONTACT_PERSON);

                        for(int j=0;j<cp.length();j++)
                        {
                        HashMap<String, String> map_cp = new HashMap<String, String>();     
                        JSONObject f = cp.getJSONObject(j);
                        map_cp.put(KEY_CONTACT_PERSON_NAME, f.getString(KEY_CONTACT_PERSON_NAME));
                        map_cp.put(KEY_CONTACT_PERSON_DESIGNATION, f.getString(KEY_CONTACT_PERSON_DESIGNATION));
                         }
                        map.put(KEY_LAST_VISIT, e.getString(KEY_LAST_VISIT));
                        map.put(KEY_NEXT_VISIT, e.getString(KEY_NEXT_VISIT));
                        map.put(KEY_IMAGE_URL, e.getString(KEY_IMAGE_URL));
                        displaylist.add(map);
                    }       
              }catch(JSONException e)      {
                  Util.LogFailedVisits ("JSON Exception "+e.toString(),mDID);
              }
试试看{
JSONArray mot=json.getJSONArray(“有效载荷”);

例如(int i=0;i使用
Fragment.setArguments()
来传递一个Bundle实例。在Bundle中,您可以放置一个
可序列化的
对象(例如,您的
HashMap
集合)

您必须首先创建一个Bundle,然后将可序列化的hashmap添加到Bundle中,然后设置片段的参数,如下所示:

    Bundle args = new Bundle();
    args.putSerializable('key', 'value');

    Fragment fragment = new Fragment();
    fragment.setArguments(args);

如果我这样做,那么我会得到错误:类型片段中的方法setArguments(Bundle)不适用于参数(ArrayList)