我有一个嵌套数组json，我必须解析。下面是json
{
"result": {
"course": [{
"course_id": "3",
"parent_course_id": "0",
"course_name": "Management of Portfolio (MoP)",
"course_price": "51000",
"course_price_doller": "510",
"course_price_discunt": "40000",
"course_price_discunt_doller": "400",
"course_discunt_date": "2016-08-09",
"course_description": "We are an expert training organization with our faculty having vast experience in consulting and training accredited by Peoplecert on behalf of Axelos.\r\nThis program is for 3 full days.\r\n\r\nXellentro has one of the best Project Portfolio Management Professionals with large experience of project management and consulting in the area across the globe for large organizations and governments.",
"course_image": "http:\/\/arrisofttech.com\/2016\/xellentroapp\/assets\/uploads\/course\/SL5715320A694D7_COURSE_128x64.jpg",
"total_module": 3,
"module": [{
"module_id": "14",
"video_price": "12",
"video_price_doller": "11",
"video_price_discunt": "123",
"video_price_discunt_doller": "12",
"video_discunt_date": "2016-02-03",
"video_type": "1",
"video_link": "arrisofttech.com\/2016\/xellentroapp\/video\/sample_2.mp4",
"video_image": "http:\/\/arrisofttech.com\/2016\/xellentroapp\/assets\/uploads\/course\/SL571531558C660_COURSE_228x80.png",
"video_description": "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum."
}, {
"module_id": "12",
"video_price": "12",
"video_price_doller": "11",
"video_price_discunt": "123",
"video_price_discunt_doller": "12",
"video_discunt_date": "2016-02-03",
"video_type": "0",
"video_link": "https:\/\/www.youtube.com\/watch?v=QSaWoca3SjY&list=RDQSaWoca3SjY",
"video_image": "http:\/\/arrisofttech.com\/2016\/xellentroapp\/assets\/uploads\/course\/SL571531558C660_COURSE_228x80.png",
"video_description": "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum."
}, {
"module_id": "13",
"video_price": "12",
"video_price_doller": "11",
"video_price_discunt": "123",
"video_price_discunt_doller": "12",
"video_discunt_date": "2016-02-03",
"video_type": "0",
"video_link": "https:\/\/www.youtube.com\/watch?v=QSaWoca3SjY&list=RDQSaWoca3SjY",
"video_image": "http:\/\/arrisofttech.com\/2016\/xellentroapp\/assets\/uploads\/course\/SL571531558C660_COURSE_228x80.png",
"video_description": "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum."
}]
}]
}
}
有两个JsonArray： - 更具体地说，一个数组中的数组，即 COURSE 和 MODULE 我已经解析了json，但重点是会有一个listview，其中课程将显示。在点击该项目时，它将打开一个活动，该活动将显示列表视图中的总模块。我已经列出了课程但是在项目或按钮上单击我无法在列表视图中显示模块。下面我附上相同的代码。
TrainningFragment.java
public class TrainingFragment extends Fragment {
private static final String TAG = MainActivity.class.getSimpleName();
private ImageView tag;
private static final String url = "http://arrisofttech.com/2016/xellentroapp/webservices/tranning/";
private ProgressDialog pDialog;
private List<Movie> trainingList = new ArrayList<Movie>();
private ListView listView;
private CustomListAdapter adapter;
public static final String KEY_URL = "video_url";
public TrainingFragment() {
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_news, container, false);
listView = (ListView) rootView.findViewById(R.id.list);
adapter = new CustomListAdapter(getActivity(), trainingList);
listView.setAdapter(adapter);
pDialog = new ProgressDialog(getActivity());
pDialog.setMessage("Loading...Please Wait...");
pDialog.setCancelable(false);
pDialog.show();
Volley.newRequestQueue(getActivity()).add(new JsonObjectRequest(Request.Method.GET, url, new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
hidePDialog();
try {
JSONObject result = response.getJSONObject("result");
JSONArray jsonArray = result.getJSONArray("course");
System.out.println("Course: == >" + result.getJSONArray("course"));
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject trainingObj = jsonArray.getJSONObject(i);
Movie movie = new Movie();
movie.setCourse_id(trainingObj.getString("course_id"));
movie.setParent_course_id(trainingObj.getString("parent_course_id"));
movie.setCourse_name(trainingObj.getString("course_name"));
movie.setCourse_price(trainingObj.getString("course_price"));
movie.setCourse_price_dollar(trainingObj.getString("course_price_doller"));
movie.setCourse_price_discount_dollar(trainingObj.getString("course_price_discunt_doller"));
movie.setCourse_discount_date(trainingObj.getString("course_discunt_date"));
movie.setCourse_description(trainingObj.getString("course_description"));
movie.setCourse_image(trainingObj.getString("course_image"));
JSONArray module = trainingObj.getJSONArray("module");
for (int j = 0; j < module.length(); j++) {
JSONObject moduleObj = module.getJSONObject(j);
movie.setModule_id(moduleObj.getString("module_id"));
movie.setVideo_price(moduleObj.getString("video_price"));
movie.setVideo_price_doller(moduleObj.getString("video_price_doller"));
movie.setVideo_price_discunt(moduleObj.getString("video_price_discunt"));
movie.setVideo_price_discunt_doller(moduleObj.getString("video_price_discunt_doller"));
movie.setVideo_discunt_date(moduleObj.getString("video_discunt_date"));
movie.setVideo_type(moduleObj.getString("video_type"));
movie.setVideo_link(moduleObj.getString("video_link"));
movie.setVideo_image(moduleObj.getString("video_image"));
movie.setVideo_description(moduleObj.getString("video_description"));
}
trainingList.add(movie);
}
} catch (JSONException e) {
e.printStackTrace();
}
adapter.notifyDataSetChanged();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
new AlertDialog.Builder(getActivity()).setTitle("No Connectivity ").setMessage("Please check your internet connectivity!").setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
}).setIcon(android.R.drawable.ic_dialog_alert).show();
hidePDialog();
}
}));
return rootView;
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
}
@Override
public void onDetach() {
super.onDetach();
}
private void hidePDialog() {
if (pDialog != null) {
pDialog.dismiss();
pDialog = null;
}
}
}
MyCustomListAdapter
add_to_cart.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
add_to_cart_list.add(m.getCourse_id().toString());
add_to_cart_list.size();
pDialog.setMessage("Added to the cart ...");
showDialog();
StringRequest strReq = new StringRequest(Request.Method.POST,
URL_ADD_TO_CART, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
Log.d("Added to Cart", "Adding to the cart: " + response.toString());
hideDialog();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e("ERROR", "Adding to the cart: " + error.getMessage());
Toast.makeText(activity,
error.getMessage(), Toast.LENGTH_LONG).show();
}
}) {
@Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<String, String>();
params.put("app_id", "12365478965874");
params.put("product_type", "1");
params.put("parent_course_id", m.getParent_course_id());
params.put("course_id", m.getCourse_id());
params.put("vaideo_id", "0");
params.put("product_image", m.getCourse_image());
params.put("product_name", m.getCourse_name());
params.put("product_price", m.getCourse_price_dollar());
params.put("product_discunt_price", m.getCourse_price_discount_dollar());
params.put("product_quantity", "1");
return params;
}
};
AppController.getInstance().addToRequestQueue(strReq, "ADD TO CART");
}
private void showDialog() {
if (!pDialog.isShowing())
pDialog.show();
}
private void hideDialog() {
if (pDialog.isShowing())
pDialog.dismiss();
}
});
view_details.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// Toast.makeText(activity, "This functionality is under Development Phase", Toast.LENGTH_SHORT).show();
// activity.startActivity(new Intent(activity, ViewDetails.class));
Intent intent = new Intent(activity, ViewDetails.class);
intent.putExtra("course_image", m.getCourse_image());
intent.putExtra("course_name", m.getCourse_name());
intent.putExtra("course_price", m.getCourse_price_discount_dollar());
intent.putExtra("course_price_discount", m.getCourse_price_dollar());
intent.putExtra("course_description", m.getCourse_description());
activity.startActivity(intent);
}
});
btn_view_module.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent view_module = new Intent(activity, ViewModule.class);
Toast.makeText(activity, m.getCourse_id() + " " + m.getModule_id(), Toast.LENGTH_SHORT).show();
activity.startActivity(view_module);
}
});
这里有3个按钮： -
addtocart，viewmodule和查看课程。通过单击viewmodule按钮，将打开一个活动，其中包含指定课程模块的自定义列表。在上面的json中，数组元素的总数是3，因此将使用上面指定的组件显示3个listview项目
ViewDetails.java
public class ViewDetails extends AppCompatActivity {
private boolean enableBackNavigation;
private ProgressDialog pDialog;
TextView tv_course_name, tv_course_actual_price, tv_course_discounted_price, tv_course_description;
private String course_image = "", course_name = "", course_actual_price = "", course_discounted_price = "", course_description = "";
private NetworkImageView thumbNail;
ImageLoader imageLoader = AppController.getInstance().getImageLoader();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_view_details);
Intent intent = this.getIntent();
if (intent != null) {
course_image = intent.getStringExtra("course_image");
course_name = intent.getStringExtra("course_name");
course_actual_price = intent.getStringExtra("course_price");
course_discounted_price = intent.getStringExtra("course_price_discount");
course_description = intent.getStringExtra("course_description");
}
init();
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
toolbar.setNavigationOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
onBackPressed();
}
});
if (enableBackNavigation) {
toolbar.setNavigationOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
onBackPressed();
}
});
}
if (imageLoader == null)imageLoader = AppController.getInstance().getImageLoader();
thumbNail.setImageUrl(course_image, imageLoader);
tv_course_name.setText(course_name);
tv_course_actual_price.setText(course_actual_price);
tv_course_actual_price.setPaintFlags(tv_course_actual_price.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
tv_course_discounted_price.setText(course_discounted_price);
tv_course_description.setText(course_description);
}
private void init() {
tv_course_name = (TextView) findViewById(R.id.course_name);
tv_course_description = (TextView) findViewById(R.id.course_description);
tv_course_actual_price = (TextView) findViewById(R.id.actual_cost);
tv_course_discounted_price = (TextView) findViewById(R.id.discounted_cost);
thumbNail = (NetworkImageView) findViewById(R.id.thumbnail);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_view_details, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
Movie.class
public class Movie {
private String course_id;
private String parent_course_id;
private String course_name;
private String course_price;
private String course_price_dollar;
private String course_price_discount_dollar;
private String course_discount_date;
private String course_description;
private String course_image;
private String total_module;
// Module
private String module_id;
private String video_price;
private String video_price_doller;
private String video_price_discunt;
private String video_price_discunt_doller;
private String video_discunt_date;
private String video_type;
private String video_link;
private String video_image;
private String video_description;
public Movie() {
}
public Movie(String course_id, String parent_course_id, String course_name, String course_price,
String course_price_dollar, String course_price_discount_dollar, String course_discount_date,
String course_description, String course_image, String total_module, String module_id,
String video_price, String video_price_doller, String video_price_discunt,
String video_price_discunt_doller, String video_discunt_date, String video_type,
String video_link, String video_image, String video_description) {
this.course_id = course_id;
this.parent_course_id = parent_course_id;
this.course_name = course_name;
this.course_price = course_price;
this.course_price_dollar = course_price_dollar;
this.course_price_discount_dollar = course_price_discount_dollar;
this.course_discount_date = course_discount_date;
this.course_description = course_description;
this.course_image = course_image;
this.total_module = total_module;
this.module_id = module_id;
this.video_price = video_price;
this.video_price_doller = video_price_doller;
this.video_price_discunt = video_price_discunt;
this.video_price_discunt_doller = video_price_discunt_doller;
this.video_discunt_date = video_discunt_date;
this.video_type = video_type;
this.video_link = video_link;
this.video_image = video_image;
this.video_description = video_description;
}
public String getCourse_id() {
return course_id;
}
public void setCourse_id(String course_id) {
this.course_id = course_id;
}
public String getParent_course_id() {
return parent_course_id;
}
public void setParent_course_id(String parent_course_id) {
this.parent_course_id = parent_course_id;
}
public String getCourse_name() {
return course_name;
}
public void setCourse_name(String course_name) {
this.course_name = course_name;
}
public String getCourse_price() {
return course_price;
}
public void setCourse_price(String course_price) {
this.course_price = course_price;
}
public String getCourse_price_dollar() {
return course_price_dollar;
}
public void setCourse_price_dollar(String course_price_dollar) {
this.course_price_dollar = course_price_dollar;
}
public String getCourse_price_discount_dollar() {
return course_price_discount_dollar;
}
public void setCourse_price_discount_dollar(String course_price_discount_dollar) {
this.course_price_discount_dollar = course_price_discount_dollar;
}
public String getCourse_discount_date() {
return course_discount_date;
}
public void setCourse_discount_date(String course_discount_date) {
this.course_discount_date = course_discount_date;
}
public String getCourse_description() {
return course_description;
}
public void setCourse_description(String course_description) {
this.course_description = course_description;
}
public String getCourse_image() {
return course_image;
}
public void setCourse_image(String course_image) {
this.course_image = course_image;
}
public String getTotal_module() {
return total_module;
}
public void setTotal_module(String total_module) {
this.total_module = total_module;
}
public String getModule_id() {
return module_id;
}
public void setModule_id(String module_id) {
this.module_id = module_id;
}
public String getVideo_price() {
return video_price;
}
public void setVideo_price(String video_price) {
this.video_price = video_price;
}
public String getVideo_price_doller() {
return video_price_doller;
}
public void setVideo_price_doller(String video_price_doller) {
this.video_price_doller = video_price_doller;
}
public String getVideo_price_discunt() {
return video_price_discunt;
}
public void setVideo_price_discunt(String video_price_discunt) {
this.video_price_discunt = video_price_discunt;
}
public String getVideo_price_discunt_doller() {
return video_price_discunt_doller;
}
public void setVideo_price_discunt_doller(String video_price_discunt_doller) {
this.video_price_discunt_doller = video_price_discunt_doller;
}
public String getVideo_discunt_date() {
return video_discunt_date;
}
public void setVideo_discunt_date(String video_discunt_date) {
this.video_discunt_date = video_discunt_date;
}
public String getVideo_type() {
return video_type;
}
public void setVideo_type(String video_type) {
this.video_type = video_type;
}
public String getVideo_link() {
return video_link;
}
public void setVideo_link(String video_link) {
this.video_link = video_link;
}
public String getVideo_image() {
return video_image;
}
public void setVideo_image(String video_image) {
this.video_image = video_image;
}
public String getVideo_description() {
return video_description;
}
public void setVideo_description(String video_description) {
this.video_description = video_description;
}
}
请帮忙。我被困在这里，我无法理解该怎么做。
答案 0 :(得分：1)
在电影类中添加一个Arraylist
private String course_id;
private String parent_course_id;
private String course_name;
private String course_price;
private String course_price_dollar;
private String course_price_discount_dollar;
private String course_discount_date;
private String course_description;
private String course_image;
private String total_module;
// Module
private String module_id;
private String video_price;
private String video_price_doller;
private String video_price_discunt;
private String video_price_discunt_doller;
private String video_discunt_date;
private String video_type;
private String video_link;
private String video_image;
private String video_description;
private List<Module> modulelist;
使用字段
创建一个模块类private String module_id;
private String video_price;
private String video_price_doller;
private String video_price_discunt;
private String video_price_discunt_doller;
private String video_discunt_date;
private String video_type;
private String video_link;
private String video_image;
private String video_description;
然后在trainig中获取值
JSONArray module = trainingObj.getJSONArray("module");
for (int j = 0; j < module.length(); j++) {
JSONObject moduleObj = module.getJSONObject(j);
movie.setModule_id(moduleObj.getString("module_id"));
movie.setVideo_price(moduleObj.getString("video_price"));
movie.setVideo_price_doller(moduleObj.getString("video_price_doller"));
movie.setVideo_price_discunt(moduleObj.getString("video_price_discunt"));
movie.setVideo_price_discunt_doller(moduleObj.getString("video_price_discunt_doller"));
movie.setVideo_discunt_date(moduleObj.getString("video_discunt_date"));
movie.setVideo_type(moduleObj.getString("video_type"));
movie.setVideo_link(moduleObj.getString("video_link"));
movie.setVideo_image(moduleObj.getString("video_image"));
movie.setVideo_description(moduleObj.getString("video_description"));
}
现在更改此
List<Module> mod1=new ArrayList<Module>();
JSONArray module = trainingObj.getJSONArray("module");
for (int j = 0; j < module.length(); j++) {
JSONObject moduleObj = module.getJSONObject(j);
Module modl=new Module();
modl.setModule_id(moduleObj.getString("module_id"));
modl.setVideo_price(moduleObj.getString("video_price"));
modl.setVideo_price_doller(moduleObj.getString("video_price_doller"));
modl.setVideo_price_discunt(moduleObj.getString("video_price_discunt"));
modl.setVideo_price_discunt_doller(moduleObj.getString("video_price_discunt_doller"));
modl.setVideo_discunt_date(moduleObj.getString("video_discunt_date"));
modl.setVideo_type(moduleObj.getString("video_type"));
modl.setVideo_link(moduleObj.getString("video_link"));
modl.setVideo_image(moduleObj.getString("video_image"));
modl.setVideo_description(moduleObj.getString("video_description"));
mod1.add(j,modl);
}
movie.setModulelist(mod1);
在movie.setModulelist中，您将获得列表