使用嵌套JSON对象（JSON对象与JSON ArrayObjects）时，是否有最简单的方法？
这是我的JSON数据
[
{
"Cinemax": "Blue Ray",
"Contacts": "0704594180",
"CinemaxPhoto": "huzy.jpg",
"Longitude": "32.89577584",
"Latitude": "0.46378484",
"Movie": [
{
"MovieName": "Ice Age 3",
"Synopsis": "Manny, Diego and sid",
"photo": "ice_age_3.jpg",
"others": null,
"ShowTime": {
"Monday": "1:30 p.m , 3:40 p.m",
"Tuesday": "1:30 pm , 3:40 p.m",
"Wednesday": "1:30 p.m., 3:40 p.m",
"Thursday": "1:30 p.m., 3:40 p.m",
"Friday": "1:30 p.m., 3:40 p.m",
"Saturday": "1:30 p.m., 3:40 p.m",
"Sunday": "1:30 p.m., 3:40 p.m"
}
},
{
"MovieName": "Zootopia",
"Synopsis": "Manny, Diego and sid",
"photo": "zootopia.jpg",
"others": null,
"ShowTime": {
"Monday": "4:30 p.m , 6:30 p.m",
"Tuesday": "4:30 p.m , 6:30 p.m",
"Wednesday": "4:30 p.m , 6:30 p.m",
"Thursday": "4:30 p.m , 6:30 p.m",
"Friday": "4:30 p.m , 6:30 p.m",
"Saturday": "4:30 p.m , 6:30 p.m",
"Sunday": "4:30 p.m , 6:30 p.m"
}
},
{
"MovieName": "Madaari",
"Synopsis": "Nirmal loses his family in a man-made disaster, he starts the journey of seeking answers asking for accountabilty, for sure am a genius , lets try out and see whether this will work out, horaay , i dont know , me am confused ",
"photo": "madaari.jpg",
"others": null,
"ShowTime": {
"Monday": "6:30 p.m , 8:30 p.m",
"Tuesday": "6:30 p.m , 8:30 p.m",
"Wednesday": "6:30 p.m , 8:30 p.m",
"Thursday": "6:30 p.m , 8:30 p.m",
"Friday": "6:30 p.m , 8:30 p.m",
"Saturday": "6:30 p.m , 8:30 p.m",
"Sunday": "6:30 p.m , 8:30 p.m"
}
},
{
"MovieName": "Me Before You",
"Synopsis": "A girl in a small town forms an unlikely bond with a recently paralyzed man she is taking care of.",
"photo": "me_before_you.jpg",
"others": null,
"ShowTime": {
"Monday": "8:30 p.m , 11:30 p.m",
"Tuesday": "8:30 p.m , 11:30 p.m",
"Wednesday": "8:30 p.m , 11:30 p.m",
"Thursday": "8:30 p.m , 11:30 p.m",
"Friday": "8:30 p.m , 11:30 p.m",
"Saturday": "8:30 p.m , 11:30 p.m",
"Sunday": "8:30 p.m , 11:30 p.m"
}
},
{
"MovieName": "Ghostbusters",
"Synopsis": "Following a ghost invasion of Manhattan, paranormal enthusiasts Erin Gilbert and Abby Yates , nuclear engineer jillian Holtzmann",
"photo": "ghost_busters.jpg",
"others": null,
"ShowTime": {
"Monday": "11:30 p.m , 1:30 a.m",
"Tuesday": "11:30 p.m , 1:30 a.m",
"Wednesday": "11:30 p.m , 1:30 a.m",
"Thursday": "11:30 p.m , 1:30 a.m",
"Friday": "11:30 p.m , 1:30 a.m",
"Saturday": "11:30 p.m , 1:30 a.m",
"Sunday": "11:30 p.m , 1:30 a.m"
}
}
]
},
{
"Cinemax": "White Down",
"Contacts": "0700304850",
"CinemaxPhoto": "hello.jpg",
"Longitude": "32.89577584",
"Latitude": "0.46378484",
"Movie": [
{
"MovieName": "The Legend Of Tarzan",
"Synopsis": "Tarzan , having acclimated to life in London, is called back to his former home in the jungle to investigate",
"photo": "legend_of_tarzan.jpg",
"others": null,
"ShowTime": {
"Monday": "11:30 p.m , 1:30 a.m",
"Tuesday": "11:30 p.m , 1:30 a.m",
"Wednesday": "11:30 p.m , 1:30 a.m",
"Thursday": "11:30 p.m , 1:30 a.m",
"Friday": "11:30 p.m , 1:30 a.m",
"Saturday": "11:30 p.m , 1:30 a.m",
"Sunday": "11:30 p.m , 1:30 a.m"
}
}
]
}
]
My First Activity成功加载了First RecyclerView
package oerrride.we.huzykamz.ugentapp;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.MenuItem;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.Toast;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import adapters.CinemaAdapter;
public class Cinemas extends AppCompatActivity {
private static final String TAG = "RecyclerViewExample";
private List<ItemObjects> feedsList;
private RecyclerView mRecyclerView;
private CinemaAdapter adapter;
private ProgressBar progressBar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.cinemas);
//
getSupportActionBar().setDisplayShowHomeEnabled(true);
android.support.v7.app.ActionBar actionBar = getSupportActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setTitle("Cinemax List");
// Initialize recycler view
mRecyclerView = (RecyclerView) findViewById(R.id.recycler_view);
mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
progressBar = (ProgressBar) findViewById(R.id.progress_bar);
progressBar.setVisibility(View.VISIBLE);
// Downloading data from below url
// internet connectivity........
ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo netInfo = cm.getActiveNetworkInfo();
final String url = "http://10.0.2.2/UgandaEntertainment/Cinema/fetch.php";
if(netInfo != null && netInfo.isConnectedOrConnecting()) {
new AsyncHttpTask().execute(url);
}
else{
Toast.makeText(this,"No network connection! , please check your connectivity",Toast.LENGTH_LONG).show();
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
onBackPressed();
break;
}
return super.onOptionsItemSelected(item);
}
public class AsyncHttpTask extends AsyncTask<String, Void, Integer> {
@Override
protected void onPreExecute() {
setProgressBarIndeterminateVisibility(true);
}
@Override
protected Integer doInBackground(String... params) {
Integer result = 0;
HttpURLConnection urlConnection;
try {
URL url = new URL(params[0]);
urlConnection = (HttpURLConnection) url.openConnection();
int statusCode = urlConnection.getResponseCode();
// 200 represents HTTP OK
if (statusCode == 200) {
BufferedReader r = new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));
StringBuilder response = new StringBuilder();
String line;
while ((line = r.readLine()) != null) {
response.append(line);
}
parseResult(response.toString());
result = 1; // Successful
} else {
result = 0; //"Failed to fetch data!";
}
} catch (Exception e) {
Log.d(TAG, e.getLocalizedMessage());
}
return result; //"Failed to fetch data!";
}
@Override
protected void onPostExecute(Integer result) {
// Download complete. Let us update UI
progressBar.setVisibility(View.GONE);
if (result == 1) {
adapter = new CinemaAdapter(Cinemas.this, feedsList);
mRecyclerView.setAdapter(adapter);
} else {
Toast.makeText(Cinemas.this, "Failed to fetch data!", Toast.LENGTH_SHORT).show();
}
}
}
private void parseResult(String result) {
try {
JSONArray ar = new JSONArray(result);
feedsList = new ArrayList<>();
for (int i = 0; i < ar.length(); i++) {
JSONObject obj = ar.getJSONObject(i);
ItemObjects item = new ItemObjects();
item.setCinemaName(obj.optString("Cinemax"));
item.setContact(obj.optString("Contacts"));
item.setCinemaxPhoto(obj.optString("CinemaxPhoto"));
item.setLongitude(obj.optString("Longitude"));
item.setLatitude(obj.optString("Latitude"));
//Here you have another Movie Json Array so get it in JSONArray
JSONArray movieArray =obj.getJSONArray("Movie");
//get the first object of Movie JSONArray and use it.
JSONObject movieObject=movieArray.getJSONObject(0);
item.setMovieName(movieObject.optString("MovieName"));
//This JSOn object to get SHOWTIME object
JSONObject showTime=movieObject.getJSONObject("ShowTime");
item.setMonday(showTime.optString("Monday"));
item.setTuesday(showTime.optString("Tuesday"));
item.setWednesday(showTime.optString("Wednesday"));
item.setThursday(showTime.optString("Thursday"));
item.setFriday(showTime.optString("Friday"));
item.setSaturday(showTime.optString("Saturday"));
item.setSunday(showTime.optString("Sunday"));
item.setSynopsis(movieObject.optString("Synopsis"));
item.setPhoto(movieObject.optString("photo"));
feedsList.add(item);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}
这是我的适配器类，它将数据发送到Nest活动
package adapters;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.support.v7.widget.RecyclerView;
import android.util.Base64;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.squareup.picasso.Picasso;
import org.json.JSONArray;
import org.json.JSONObject;
import java.io.ByteArrayOutputStream;
import java.util.ArrayList;
import java.util.List;
import oerrride.we.huzykamz.ugentapp.CinemaViewHolders;
import oerrride.we.huzykamz.ugentapp.ItemObjects;
import oerrride.we.huzykamz.ugentapp.LoadingMovies;
import oerrride.we.huzykamz.ugentapp.R;
/**
* Created by HUZY_KAMZ on 7/22/2016.
*/
public class CinemaAdapter extends RecyclerView.Adapter<CinemaViewHolders> {
String url="http://10.0.2.2/UgandaEntertainment/CinemaPics/";
private List<ItemObjects> itemList = null;
private Context context;
private ArrayList<ItemObjects> arraylist;
public CinemaAdapter(Context context, List<ItemObjects> itemList) {
this.itemList = itemList;
this.context = context;
}
@Override
public CinemaViewHolders onCreateViewHolder(ViewGroup parent, int viewType) {
View layoutView = LayoutInflater.from(parent.getContext()).inflate(R.layout.cinema_list,parent,false);
CinemaViewHolders rcv = new CinemaViewHolders(layoutView,context);
return rcv;
}
public static String encodeTobase64(Bitmap image) {
Bitmap immagex=image;
ByteArrayOutputStream baos = new ByteArrayOutputStream();
immagex.compress(Bitmap.CompressFormat.JPEG, 90, baos);
byte[] b = baos.toByteArray();
String imageEncoded = Base64.encodeToString(b, Base64.DEFAULT);
// Log.e("LOOK", imageEncoded);
return imageEncoded;
}
@Override
public void onBindViewHolder(final CinemaViewHolders holder,final int position) {
final ItemObjects feedItems = itemList.get(position);
holder.root.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//
Intent intent = new Intent(CinemaAdapter.this.context, LoadingMovies.class);
intent.putExtra(CinemaViewHolders.KEY_MOVIE_NAME, feedItems.getMovieName());
intent.putExtra(CinemaViewHolders.KEY_MOVIE_IMAGE, feedItems.getPhoto());
//
context.startActivity(intent);
}
});
//Download image using picasso library
Picasso.with(context).load(url+feedItems.getCinemaxPhoto())
.error(R.drawable.placeholder).
resize(500,500)
.placeholder(R.drawable.placeholder)
.into(holder.countryPhoto);
holder.countryName.setText(itemList.get(position).getCinemaName());
}
@Override
public int getItemCount() {
return (null != itemList ? itemList.size() : 0);
}
}
我已成功在第一个Recycler视图中检索了Cinemax Cinemax对象和CinemaxPhoto对象的列表。现在我想要一个项目被点击加载另一个RecyclerView，包含Cinemax上的相关信息。
下面是我的SecondActivity尝试加载MovieName对象和photo，ShowTime对象，但它并没有为每个Cinemax带来匹配信息。
我是否需要在 SecondActivity
中使用parseResult方法进行编辑
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.MenuItem;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.Toast;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import adapters.CinemaAdapter;
import adapters.LoadingMoviesAdapter;
public class LoadingMovies extends AppCompatActivity {
private static final String TAG = "RecyclerViewExample";
private List<ItemObjects> feedsList;
private RecyclerView mRecyclerView;
private LoadingMoviesAdapter adapter;
private ProgressBar progressBar;
private String moviename="MovieName";
private String moviepic ="photo";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.ntinda);
//
getSupportActionBar().setDisplayShowHomeEnabled(true);
android.support.v7.app.ActionBar actionBar = getSupportActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setTitle("Now Showing Ntinda ");
Bundle bundle = getIntent().getExtras();
Bundle extras=getIntent().getExtras();
String imageString=extras.getString(NtindaCinemaViewHolders.KEY_MOVIE_IMAGE);
// Initialize recycler view
mRecyclerView = (RecyclerView) findViewById(R.id.recycler_view1);
/* mRecyclerView.setLayoutManager(new LinearLayoutManager(this));*/
GridLayoutManager manager = new GridLayoutManager(this, 3);
manager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
@Override
public int getSpanSize(int position) {
return (3 - position % 4);
}
});
mRecyclerView.setLayoutManager(manager);
progressBar = (ProgressBar) findViewById(R.id.progress_bar1);
progressBar.setVisibility(View.VISIBLE);
// Downloading data from below url
// internet connectivity........
ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo netInfo = cm.getActiveNetworkInfo();
final String url = "http://10.0.2.2/UgandaEntertainment/Cinema/fetch.php";
if(netInfo != null && netInfo.isConnectedOrConnecting()) {
new AsyncHttpTask().execute(url);
}
else{
Toast.makeText(this,"No network connection! , please check your connectivity",Toast.LENGTH_LONG).show();
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
onBackPressed();
break;
}
return super.onOptionsItemSelected(item);
}
public class AsyncHttpTask extends AsyncTask<String, Void, Integer> {
@Override
protected void onPreExecute() {
setProgressBarIndeterminateVisibility(true);
}
@Override
protected Integer doInBackground(String... params) {
Integer result = 0;
HttpURLConnection urlConnection;
try {
URL url = new URL(params[0]);
urlConnection = (HttpURLConnection) url.openConnection();
int statusCode = urlConnection.getResponseCode();
// 200 represents HTTP OK
if (statusCode == 200) {
BufferedReader r = new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));
StringBuilder response = new StringBuilder();
String line;
while ((line = r.readLine()) != null) {
response.append(line);
}
parseResult(response.toString());
result = 1; // Successful
} else {
result = 0; //"Failed to fetch data!";
}
} catch (Exception e) {
Log.d(TAG, e.getLocalizedMessage());
}
return result; //"Failed to fetch data!";
}
@Override
protected void onPostExecute(Integer result) {
// Download complete. Let us update UI
progressBar.setVisibility(View.GONE);
if (result == 1) {
adapter = new LoadingMoviesAdapter(LoadingMovies.this, feedsList);
mRecyclerView.setAdapter(adapter);
} else {
Toast.makeText(LoadingMovies.this, "Failed to fetch data!", Toast.LENGTH_SHORT).show();
}
}
}
private void parseResult(String result) {
try {
JSONArray ar = new JSONArray(result);
feedsList = new ArrayList<>();
for (int i = 0; i < ar.length(); i++) {
JSONObject obj = ar.getJSONObject(i);
ItemObjects item = new ItemObjects();
// declaring bundle
// what should i put here to access the movies and showTime????
Bundle bundle = getIntent().getExtras();
moviename = bundle.getString(CinemaViewHolders.KEY_MOVIE_NAME);
moviepic = bundle.getString(CinemaViewHolders.KEY_MOVIE_IMAGE);
ItemObjects huxy = new ItemObjects();
JSONArray movieArray =obj.getJSONArray("Movie");
//get the first object of Movie JSONArray and use it.
JSONObject movieObject=movieArray.getJSONObject(0);
item.setMovieName(movieObject.optString(moviename));
//This JSON object to get SHOWTIME object
JSONObject showTime=movieObject.getJSONObject("ShowTime");
item.setPhoto(movieObject.optString("photo"));
feedsList.add(item);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}