Nicky Apriliani Nicky Apriliani - 5 months ago 261
Android Question

Android Displaying data from json to cardview in RecyclerView

I want to display data from webservice to cardview in recycleviewer. It had already success to display data. But it only display one data, although it has a lot of data to display.
Can you help me to solve this problem? Thank you

Seller.java

public class Seller {
String penjual,image,alamat,telp;

public String getPenjual() {
return penjual;
}

public void setPenjual(String penjual) {
this.penjual = penjual;
}

public String getImage() {
return image;
}

public void setImage(String image) {
this.image = image;
}

public String getAlamat() {
return alamat;
}

public void setAlamat(String alamat) {
this.alamat = alamat;
}

public String getTelp() {
return telp;
}

public void setTelp(String telp) {
this.telp = telp;
}
}


SellerAdapter.Java

import android.content.Context;
import android.support.v7.widget.CardView;
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.TextView;

import com.amobi.lomapodfix.R;
import com.amobi.lomapodfix.model.Seller;
import com.squareup.picasso.Picasso;

import java.util.ArrayList;
import java.util.List;

/**
* Created by Nicky-PC on 5/4/2016.
*/
public class SellerAdapter extends RecyclerView.Adapter<SellerAdapter.PersonViewHolder> {

List<Seller> sellers;
Context context;
public SellerAdapter(Context context,List<Seller> sellers)
{
this.sellers=sellers;
this.context=context;
}

public void setGridData(List<Seller> mGridData)
{
this.sellers=mGridData;
notifyDataSetChanged();
}
@Override
public PersonViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_toko, parent, false);
PersonViewHolder pvh = new PersonViewHolder(v);
return pvh;
}

@Override
public void onBindViewHolder(PersonViewHolder holder, int i) {
holder.Seller.setText(sellers.get(i).getPenjual());
holder.Address.setText(sellers.get(i).getAlamat());
holder.Telp.setText(sellers.get(i).getTelp());
Picasso.with(context).load(sellers.get(i).getImage()).fit().into(holder.image);
}

@Override
public int getItemCount() {
return sellers.size();
}

public static class PersonViewHolder extends RecyclerView.ViewHolder {
CardView cv;
TextView Seller;
TextView Address;
TextView Telp;
ImageView image;

PersonViewHolder(View itemView) {
super(itemView);
cv = (CardView)itemView.findViewById(R.id.cv);
Seller = (TextView)itemView.findViewById(R.id.lvSeller);
Address = (TextView)itemView.findViewById(R.id.lvAlamat);
Telp = (TextView)itemView.findViewById(R.id.lvAlamat);
image= (ImageView)itemView.findViewById(R.id.person_photo);
}
}
@Override
public void onAttachedToRecyclerView(RecyclerView recyclerView) {
super.onAttachedToRecyclerView(recyclerView);
}
}


DogFragment.java

import android.app.ProgressDialog;
import android.os.AsyncTask;
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.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Toast;

import com.amobi.lomapodfix.JSONParser;
import com.amobi.lomapodfix.MainActivity;
import com.amobi.lomapodfix.R;
import com.amobi.lomapodfix.adapter.SellerAdapter;
import com.amobi.lomapodfix.model.Seller;

import org.apache.http.NameValuePair;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

/**
* A simple {@link Fragment} subclass.
*/
public class DogFragment extends Fragment {

SellerAdapter mGridadapter;
JSONParser jParser= new JSONParser();
ArrayList<HashMap<String, String>> nameList;
JSONArray names=null;
RecyclerView data;
List<Seller> mgridData;
ProgressDialog pDialog;
private static final String URL_TEST_ANJING = "http://lomapod.azurewebsites.net/readSellerAnjing.php";
private static final String TAG_PESAN = "message";
private static final String TAG_HASIL = "result";
private static final String TAG_ID = "id_penjual";
private static final String TAG_SELLER= "nama_toko";
private static final String TAG_ALAMAT= "alamat_toko";
private static final String TAG_TELP= "no_telp";
private static final String TAG_IMAGE= "image_name";
private RecyclerView.LayoutManager layoutManager;


public DogFragment() {
// Required empty public constructor
}

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View rootView=inflater.inflate(R.layout.fragment_dog, container, false);
data=(RecyclerView) rootView.findViewById(R.id.rv);
layoutManager = new LinearLayoutManager(getActivity());
data.setLayoutManager(layoutManager);
mgridData=new ArrayList<>();
mGridadapter=new SellerAdapter(getActivity(),mgridData);

new AmbilDataJsonAnjing().execute();
return rootView;
}

public class AmbilDataJsonAnjing extends AsyncTask<String,String,String> {

int sukses=0;

public AmbilDataJsonAnjing() {
pDialog = new ProgressDialog(getActivity());
}

@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog.setMessage("Mengambil Data. Silahkan Tunggu...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}

@Override
protected String doInBackground(String... args) {

List<NameValuePair> params = new ArrayList<NameValuePair>();

try
{
JSONObject json = jParser.makeHttpRequest(URL_TEST_ANJING, "GET", params);
Seller sellers=null;
if(json != null)
{
sukses = json.getInt(TAG_PESAN);
if(sukses == 1)
{
nameList = new ArrayList<HashMap<String,String>>();
Log.d("Semua Nama: ", json.toString());
names = json.getJSONArray(TAG_HASIL);

for(int i = 0; i < names.length();i++)
{
JSONObject c = names.getJSONObject(i);
String id = c.getString(TAG_ID);
String seller = c.getString(TAG_SELLER);
String alamat=c.getString(TAG_ALAMAT);
String telp=c.getString(TAG_TELP);
String image=c.getString(TAG_IMAGE);

HashMap<String,String> map = new HashMap<String,String>();

sellers=new Seller();
sellers.setPenjual(seller);
sellers.setAlamat(alamat);
sellers.setTelp(telp);
sellers.setImage(image);

map.put(TAG_ID, id);
map.put(TAG_SELLER,seller);
map.put(TAG_ALAMAT,alamat);
map.put(TAG_TELP,telp);
nameList.add(map);
mgridData.add(sellers);
}
}
}
}catch(JSONException e)
{
e.printStackTrace();
}

return null;
}

@Override
protected void onPostExecute(String s) {
pDialog.dismiss();
RecyclerView.Adapter adapter=new SellerAdapter(getActivity(),mgridData);
if(sukses == 1 )
{
mGridadapter.setGridData(mgridData);
data.setAdapter(adapter);
}
else
{
Toast.makeText(getActivity(), "Error - No Data Available", Toast.LENGTH_SHORT).show();
}
}
}

}


And I get this in android monitor

05-04 23:35:55.874 5605-5668/com.amobi.lomapodfix D/url: http://lomapod.azurewebsites.net/readSellerAnjing.php?
05-04 23:35:55.878 5605-5605/com.amobi.lomapodfix W/FragmentManager: moveToState: Fragment state for CatFragment{a9c44708 #1 id=0x7f0d007e android:switcher:2131558526:1} not updated inline; expected state 3 found 2
05-04 23:35:55.938 5605-5605/com.amobi.lomapodfix W/EGL_emulation: eglSurfaceAttrib not implemented
05-04 23:35:55.938 5605-5605/com.amobi.lomapodfix E/RecyclerView: No adapter attached; skipping layout
05-04 23:35:55.946 5605-5605/com.amobi.lomapodfix I/dalvikvm: Could not find method android.support.v7.widget.LinearLayoutCompat.drawableHotspotChanged, referenced from method android.support.design.internal.ForegroundLinearLayout.drawableHotspotChanged
05-04 23:35:55.946 5605-5605/com.amobi.lomapodfix W/dalvikvm: VFY: unable to resolve virtual method 15705: Landroid/support/v7/widget/LinearLayoutCompat;.drawableHotspotChanged (FF)V
05-04 23:35:55.946 5605-5605/com.amobi.lomapodfix D/dalvikvm: VFY: replacing opcode 0x6f at 0x0000
05-04 23:35:55.958 5605-5608/com.amobi.lomapodfix D/dalvikvm: GC_CONCURRENT freed 374K, 8% free 55730K/60500K, paused 2ms+1ms, total 9ms
05-04 23:35:56.098 5605-5668/com.amobi.lomapodfix I/info: org.apache.http.client.methods.HttpGet@a9c7a668
05-04 23:35:56.098 5605-5668/com.amobi.lomapodfix D/Semua Nama:: {"message":1,"result":[{"no_telp":"08345678","nama_toko":"lomapod","image_name":null,"id_image":"1","no_rek":"12345","email":"sekar@gmail.com","id_penjual":"1","alamat_toko":"jl.bbbbb","kota":"Yogyakarta","nama_bank":"BBB"},{"no_telp":"0829417","nama_toko":"meow","image_name":null,"id_image":"1","no_rek":"12345","email":"nicky@gmail.com","id_penjual":"2","alamat_toko":"jl.ccccc","kota":"Yogyakarta","nama_bank":"BNI"}]}
05-04 23:35:56.682 5605-5605/com.amobi.lomapodfix W/EGL_emulation: eglSurfaceAttrib not implemented
05-04 23:35:56.702 5605-5605/com.amobi.lomapodfix I/Choreographer: Skipped 42 frames! The application may be doing too much work on its main thread.
05-04 23:35:56.706 5605-5605/com.amobi.lomapodfix E/RecyclerView: No adapter attached; skipping layout
05-04 23:35:56.918 5605-5605/com.amobi.lomapodfix W/Settings: Setting airplane_mode_on has moved from android.provider.Settings.System to android.provider.Settings.Global, returning read-only value.

Answer

I've encountered this issue that the recycler view only displays the first item. It was because I was importing different versions of recyclerview, cardview, design and appcompat. The issue is fixed after I made the versions consistent in the app gradle, The version doesn't have to be 23.2.1 but they have to be the same for all of these.

compile 'com.android.support:appcompat-v7:23.2.1'
compile 'com.android.support:design:23.2.1'
compile 'com.android.support:recyclerview-v7:23.2.1'
compile 'com.android.support:cardview-v7:23.2.1'

Another cause could be you are using match_parent for the height for the items in the recyclerview and the parent container of you recyclerview. This makes the first item to occupy the entire screen. Should use wrap_content or give a specific height instead.

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