0
在我的選項卡欄中，我想通過使用json解析使用volley庫在Recycler視圖中顯示我的數據。我解析了數據，並且完全顯示在烤麪包上。但是在Recycler視圖中它沒有顯示這裏是我的代碼。使用Volley解析json數據後不顯示Recycler視圖
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.ImageLoader;
import com.android.volley.toolbox.JsonObjectRequest;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import javax.xml.transform.ErrorListener;
import info.tatwa.adupter.AdupterBoxOffice;
import info.tatwa.extras.Keys;
import info.tatwa.extras.UrlEndPoint;
import info.tatwa.login.L;
import info.tatwa.model.Movies;
import info.tatwa.network.MyApplication;
import info.tatwa.network.VolleySingleton;
import info.tatwa.newnav.R;
import info.tatwa.extras.UrlEndPoint.*;
import info.tatwa.extras.Keys.EndpointBoxOffice.*;
public class FragmentBoxOffice extends Fragment {
private VolleySingleton volleySingleton;
private RequestQueue requestQueue;
private AdupterBoxOffice adupterBoxOffice;
private ArrayList<Movies>listMovie = new ArrayList<>();
private ImageLoader imageLoader;
private DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
public static final String ROTET_TOMATO_URL_BOX_OFFICE="My url is here"
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
private RecyclerView listMovieHits;
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* @param param1 Parameter 1.
* @param param2 Parameter 2.
* @return A new instance of fragment FragmentBoxOffice.
*/
public static FragmentBoxOffice newInstance(String param1, String param2) {
FragmentBoxOffice fragment = new FragmentBoxOffice();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
public static String getRequestUrl(int limit){
//ROTET_TOMATO_URL_BOX_OFFICE+"?apikey="+ MyApplication.ROTET_TOMATO_API_KEY+"&limit="+limit;
return UrlEndPoint.URL_BOX_OFFICE +
UrlEndPoint.URL_CHAR_QUASTIAN+
UrlEndPoint.URL_CHAR_PAREM_APIKEY +
MyApplication.ROTET_TOMATO_API_KEY +
UrlEndPoint.URL_CHAR_APPEND+
UrlEndPoint.URL_CHAR_PAREM_LIMIT + limit;
}
public FragmentBoxOffice() {
// Required empty public constructor
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
volleySingleton = VolleySingleton.getsInstance();
requestQueue = volleySingleton.getmRequestQueue();
senJsonRequest();
}
public void senJsonRequest(){
JsonObjectRequest request = new JsonObjectRequest(Request.Method.GET, getRequestUrl(10), (String)null, new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
paresJSONResponse(response);
listMovie =paresJSONResponse(response);
adupterBoxOffice.setMovieList(listMovie);
L.t(getActivity(), response.toString());
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getActivity(),"Error"+error.getMessage(),Toast.LENGTH_SHORT).show();
}
});
requestQueue.add(request);
}
public ArrayList<Movies> paresJSONResponse(JSONObject response){
ArrayList<Movies> listMovie = new ArrayList<>();
if(response ==null|| response.length()==0){
return null;
}
try {
StringBuilder data = new StringBuilder();
JSONArray arrayMovie = response.getJSONArray(Keys.EndpointBoxOffice.KEY_MOVIES);
Log.v("BIKASH", "JSON Object id" + arrayMovie);
for(int i = 0; i<arrayMovie.length();i++){
JSONObject currentMovies= arrayMovie.getJSONObject(i);
Long id =currentMovies.getLong(Keys.EndpointBoxOffice.KEY_ID);
String title=currentMovies.getString(Keys.EndpointBoxOffice.KEY_TITLE);
JSONObject objectReleaseDates=currentMovies.getJSONObject(Keys.EndpointBoxOffice.KEY_RELEASE_DATES);
String releaseDate=null;
if(objectReleaseDates.has(Keys.EndpointBoxOffice.KEY_THEATER)){
releaseDate = objectReleaseDates.getString(Keys.EndpointBoxOffice.KEY_THEATER);
}
else {
releaseDate="NA";
}
int audianceRatting=-1;
JSONObject objectRatting = currentMovies.getJSONObject(Keys.EndpointBoxOffice.KEY_RATINGS);
{
if(objectRatting.has(Keys.EndpointBoxOffice.KEY_AUDIENCE_SCORE)){
audianceRatting=objectRatting.getInt(Keys.EndpointBoxOffice.KEY_AUDIENCE_SCORE);
}
}
String synuypsis = currentMovies.getString(Keys.EndpointBoxOffice.KEY_SYNOPSIS);
String urlThumbnel = null;
JSONObject objPoster = currentMovies.getJSONObject(Keys.EndpointBoxOffice.KEY_THUMBNAIL);
if(objPoster.has(Keys.EndpointBoxOffice.KEY_THUMBNAIL)){
urlThumbnel = objPoster.getString(Keys.EndpointBoxOffice.KEY_THUMBNAIL);
}
Movies movie =new Movies();
movie.setId(id);
movie.setTitle(title);
Date date = dateFormat.parse(releaseDate);
movie.setReleaseDateTheater(date);
movie.setAudienceScore(audianceRatting);
movie.setSynopsis(synuypsis);
movie.setUrlThumbnail(urlThumbnel);
listMovie.add(movie);
// data.append(id + "\n");
}
L.t(getActivity(),listMovie.toString());
} catch (JSONException e) {
e.printStackTrace();
} catch (ParseException e) {
e.printStackTrace();
}
return listMovie;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view =inflater.inflate(R.layout.fragment_fragment_box_office, container, false);
listMovieHits =(RecyclerView)view.findViewById(R.id.listMovieHits);
listMovieHits.setLayoutManager(new LinearLayoutManager(getActivity()));
adupterBoxOffice = new AdupterBoxOffice(getActivity());
listMovieHits.setAdapter(adupterBoxOffice);
senJsonRequest();
return view;
}
}
我Adupter
import android.content.Context;
import android.support.v4.app.FragmentActivity;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.RatingBar;
import android.widget.TextView;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.ImageLoader;
import java.util.ArrayList;
import info.tatwa.model.Movies;
import info.tatwa.myfragment.FragmentBoxOffice;
import info.tatwa.network.VolleySingleton;
import info.tatwa.newnav.R;
public class AdupterBoxOffice extends RecyclerView.Adapter<AdupterBoxOffice.ViewHolderBoxOffice> {
private LayoutInflater layoutInflater;
FragmentBoxOffice activity;
private ArrayList<Movies> listMovie = new ArrayList<>();
private VolleySingleton volleySingleton;
private ImageLoader imageLoader;
public AdupterBoxOffice(Context context){
layoutInflater=LayoutInflater.from(context);
volleySingleton=VolleySingleton.getsInstance();
imageLoader = volleySingleton.getImageLoader();
}
public void setMovieList(ArrayList<Movies>listMovie){
this.listMovie = listMovie;
notifyItemRangeChanged(0,listMovie.size());
}
@Override
public ViewHolderBoxOffice onCreateViewHolder(ViewGroup parent, int viewType) {
layoutInflater = LayoutInflater.from(parent.getContext());
View view = layoutInflater.inflate(R.layout.movie_list_itom,parent,false);
ViewHolderBoxOffice viewHolder =new ViewHolderBoxOffice(view);
return viewHolder;
}
@Override
public void onBindViewHolder(final ViewHolderBoxOffice holder, int position) {
Movies currentMovie =listMovie.get(position);
holder.movieTitle.setText(currentMovie.getTitle());
holder.movieReleaseDate.setText(currentMovie.getReleaseDateTheater().toString());
holder.movieRatting.setRating(currentMovie.getAudienceScore()/20.0f);
String urlThumbnel = currentMovie.getUrlThumbnail();
if(urlThumbnel!=null){
imageLoader.get(urlThumbnel, new ImageLoader.ImageListener() {
@Override
public void onResponse(ImageLoader.ImageContainer response, boolean isImmediate) {
holder.imagePoster.setImageBitmap(response.getBitmap());
}
@Override
public void onErrorResponse(VolleyError error) {
}
});
}
}
@Override
public int getItemCount() {
return listMovie.size();
}
static class ViewHolderBoxOffice extends RecyclerView.ViewHolder {
private ImageView imagePoster;
private TextView movieTitle;
private TextView movieReleaseDate;
private RatingBar movieRatting;
public ViewHolderBoxOffice(View itemView) {
super(itemView);
imagePoster=(ImageView)itemView.findViewById(R.id.movieThumbnail);
movieTitle =(TextView)itemView.findViewById(R.id.movieTitle);
movieReleaseDate=(TextView)itemView.findViewById(R.id.movieReleaseDate);
movieRatting=(RatingBar)itemView.findViewById(R.id.movieAudienceScore);
}
}
}
而且我的模型類
import android.os.Parcel;
import android.os.Parcelable;
import java.util.Date;
public class Movies{
private long id;
private String title;
private Date releaseDateTheater;
private int audienceScore;
private String synopsis;
private String urlThumbnail;
private String urlSelf;
private String urlCast;
private String urlReviews;
private String urlSimilar;
public Movies() {
}
public Movies(long id,
String title,
Date releaseDateTheater,
int audienceScore,
String synopsis,
String urlThumbnail,
String urlSelf,
String urlCast,
String urlReviews,
String urlSimilar) {
this.id = id;
this.title = title;
this.releaseDateTheater = releaseDateTheater;
this.audienceScore = audienceScore;
this.synopsis = synopsis;
this.urlThumbnail = urlThumbnail;
this.urlSelf = urlSelf;
this.urlCast = urlCast;
this.urlReviews = urlReviews;
this.urlSimilar = urlSimilar;
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public Date getReleaseDateTheater() {
return releaseDateTheater;
}
public void setReleaseDateTheater(Date releaseDateTheater) {
this.releaseDateTheater = releaseDateTheater;
}
public int getAudienceScore() {
return audienceScore;
}
public void setAudienceScore(int audienceScore) {
this.audienceScore = audienceScore;
}
public String getSynopsis() {
return synopsis;
}
public void setSynopsis(String synopsis) {
this.synopsis = synopsis;
}
public String getUrlThumbnail() {
return urlThumbnail;
}
public void setUrlThumbnail(String urlThumbnail) {
this.urlThumbnail = urlThumbnail;
}
public String getUrlSelf() {
return urlSelf;
}
public void setUrlSelf(String urlSelf) {
this.urlSelf = urlSelf;
}
public String getUrlCast() {
return urlCast;
}
public void setUrlCast(String urlCast) {
this.urlCast = urlCast;
}
public String getUrlReviews() {
return urlReviews;
}
public void setUrlReviews(String urlReviews) {
this.urlReviews = urlReviews;
}
public String getUrlSimilar() {
return urlSimilar;
}
public void setUrlSimilar(String urlSimilar) {
this.urlSimilar = urlSimilar;
}
@Override
public String toString() {
return "\nID: " + id +
"\nTitle " + title +
"\nDate " + releaseDateTheater +
"\nSynopsis " + synopsis +
"\nScore " + audienceScore +
"\nurlThumbnail " + urlThumbnail +
"\nurlSelf " + urlSelf +
"\nurlCast " + urlCast +
"\nurlReviews " + urlReviews +
"\nurlSimilar " + urlSimilar +
"\n";
}
}
請幫我了..在此先感謝..
你確定paresJSONResponse發生得足夠快，所以listMovie = paresJSONResponse（response）; adupterBoxOffice.setMovieList（listMovie）;是不是空？ – Smashing
謝謝你的朋友。我在這裏犯了錯誤。我改變了一點在我的代碼... ArrayList listMovie = new ArrayList <>（）;如果（響應！= null || response.length（）> 0）{ 嘗試StringBuilder data = new StringBuilder（）; ................................................. .....................但它也沒有工作.. –
Bikash
非常感謝我的朋友..你是對的..我的listMovie返回null值..現在它的工作就像我想要的...再次感謝你... – Bikash