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How to retreive data from mysql database in RecyclerView into RadioButton

Im creating a RecyclerView using jdbc connection and mysql database. Inside the RecyclerView I am uploading data from my database into one TextView and three radioButtons . Everything works just fine, but my problem is that it only shows the first RadioButton and there is nothing in the second and third one.
Here is my java code :
public class GererVoteInvite extends AppCompatActivity {
private ArrayList<VoteItem> itemArrayList; //List items Array
private MyAppAdapter myAppAdapter; //Array Adapter
private RecyclerView recyclerView; //RecyclerView
private RecyclerView.LayoutManager mLayoutManager;
private boolean success = false; // boolean
private static final String DB_URL = "jdbc:mysql://10.0.2.2/mvoting_db_1.0.0.0";
// private static final String DB_URL = "jdbc:mysql://172.16.24.25/mvoting_db_1.0.0.0"; //"jdbc:mysql://DATABASE_IP/DATABASE_NAME";
private static final String USER = "mootaz";
private static final String PASS = "mootaz";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_gerer_vote_invite);
recyclerView = (RecyclerView) findViewById(R.id.recyclerView); //REcyclerview Declaration
recyclerView.setHasFixedSize(true);
// use a linear layout manager
mLayoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(mLayoutManager);
itemArrayList = new ArrayList<VoteItem>(); // Arraylist Initialization
// Calling Async Task
SyncData orderData = new SyncData();
orderData.execute("");
}
// Async Task has three overrided methods,
private class SyncData extends AsyncTask<String, String, String> {
String msg = "Internet/DB_Credentials/Windows_FireWall_TurnOn Error, See Android Monitor in the bottom For details!";
ProgressDialog progress;
//Starts the progress dailog
#Override
protected void onPreExecute() {
progress = ProgressDialog.show(GererVoteInvite.this, "Synchronising",
"RecyclerView Loading! Please Wait...", true);
}
// Connect to the database, write query and add items to array list
#Override
protected String doInBackground(String... strings) {
try {
Class.forName("com.mysql.jdbc.Driver");
Connection conn = DriverManager.getConnection(DB_URL, USER, PASS); //Connection Object
if (conn == null) {
success = false;
} else {
// Change below query according to your own database.
String query = "SELECT lib_probleme , lib_solution_1 , lib_solution_2 , lib_solution_3 FROM reunion JOIN probleme JOIN solution WHERE reunion.id_reunion=probleme.id_reunion and probleme.id_probleme=solution.id_probleme ;";
Statement stmt = conn.createStatement();
java.sql.ResultSet rs = stmt.executeQuery(query);
// if resultset not null, I add items to itemArraylist using class created
if (rs != null) {
while (rs.next()) {
try {
itemArrayList.add(new VoteItem(rs.getString("lib_probleme"), rs.getString("lib_solution_1"), rs.getString("lib_solution_2"), rs.getString("lib_solution_3")));
} catch (Exception ex) {
ex.printStackTrace();
}
}
msg = "Found";
success = true;
} else {
msg = "No Data found!";
success = false;
}
}
} catch (Exception e) {
e.printStackTrace();
Writer writer = new StringWriter();
e.printStackTrace(new PrintWriter(writer));
msg = writer.toString();
success = false;
}
return msg;
}
// disimissing progress dialoge, showing error and setting up my gridview
#Override
protected void onPostExecute(String msg) {
progress.dismiss();
Toast.makeText(GererVoteInvite.this, msg + "", Toast.LENGTH_LONG).show();
if (success == false) {
} else {
try {
myAppAdapter = new MyAppAdapter(itemArrayList, GererVoteInvite.this);
recyclerView.setAdapter(myAppAdapter);
} catch (Exception ex) {
}
}
}
}
public class MyAppAdapter extends RecyclerView.Adapter<MyAppAdapter.ViewHolder> {
private List<VoteItem> values;
public Context context;
public class ViewHolder extends RecyclerView.ViewHolder {
public TextView txtProbleme;
public RadioGroup group;
public RadioButton txtSol1;
public RadioButton txtSol2;
public RadioButton txtSol3;
public View layout;
public ViewHolder(View v) {
super(v);
layout = v;
group = (RadioGroup) v.findViewById(R.id.radio_group);
txtProbleme = (TextView) v.findViewById(R.id.tv_probleme);
txtSol1 = (RadioButton) v.findViewById(R.id.rb_1);
txtSol2 = (RadioButton) v.findViewById(R.id.rb_2);
txtSol3 = (RadioButton) v.findViewById(R.id.rb_3);
}
}
// Constructor
public MyAppAdapter(List<VoteItem> myDataset, Context context) {
values = myDataset;
this.context = context;
}
// Create new views (invoked by the layout manager) and inflates
#Override
public MyAppAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
// create a new view
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
View v = inflater.inflate(R.layout.vote_view, parent, false);
ViewHolder vh = new ViewHolder(v);
return vh;
}
// Binding items to the view
#Override
public void onBindViewHolder(ViewHolder holder, final int position) {
final VoteItem voteItem = values.get(position);
holder.txtProbleme.setText(voteItem.getProbleme());
holder.group.setTag(position);
holder.txtSol1.setText(voteItem.getSol1());
holder.txtSol2.setText(voteItem.getSol2());
holder.txtSol3.setText(voteItem.getSol3());
}
// get item count returns the list item count
#Override
public int getItemCount() {
return values.size();
}
}
}
And here is my layout.xml that containt the item for the RecyclerView
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:id="#+id/ac"
android:layout_width="match_parent"
android:layout_height="205dp"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:padding="5dp">
<android.support.v7.widget.CardView
android:id="#+id/vote_card"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="7dp"
android:layout_marginRight="7dp"
android:layout_marginTop="10dp"
card_view:cardBackgroundColor="#color/white"
card_view:cardCornerRadius="10dp"
card_view:cardElevation="5dp">
<TextView
android:id="#+id/tv_probleme"
android:layout_width="fill_parent"
android:layout_height="40dp"
android:layout_marginTop="30dp"
android:paddingLeft="15dp"
android:paddingRight="15dp"
android:text="Probleme :"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textSize="16dp" />
<RadioGroup
android:id="#+id/radio_group"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RadioButton
android:id="#+id/rb_1"
android:layout_width="fill_parent"
android:layout_height="40dp"
android:layout_marginTop="60dp"
android:text="Solution 1" />
<RadioButton
android:id="#+id/rb_2"
android:layout_width="fill_parent"
android:layout_height="40dp"
android:text="Solution 2" />
<RadioButton
android:id="#+id/rb_3"
android:layout_width="fill_parent"
android:layout_height="40dp"
android:text="Solution 3" />
</RadioGroup>
</android.support.v7.widget.CardView>
</RelativeLayout>
Here is the screenshot of my app

E/RecyclerView: No adapter attached; skipping layout. using ASYNC TASK

i've had a problem, when i've tried to view this below fragment showing "skipping layout". Can any one help me out how to solve this problem please.
I'm getting this "No adapter attached; skipping layout." when i CLICK any imageview on ThirdFragment UI ayout, not when the images display in Thirdfragment UI layout.
ThirdFrament.java
public class ThirdFragment extends Fragment implements RecyclerViewAdapter.ItemListener {
static final String url = "https://jsonparsingdemo-cec5b.firebaseapp.com/jsonData/moviesData.txt" ;
RecyclerView recyclerView;
RecyclerViewAdapter adapter;
AutoFitGridLayoutManager layoutManager;
private static List<JsonURLFullModel> cart;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView= inflater.inflate(R.layout.fragment_third, container, false);
recyclerView = (RecyclerView) rootView.findViewById(R.id.recyclerView);
new JSONTask().execute(url, this);
// Inflate the layout for this fragment
return rootView;
}
public class JSONTask extends AsyncTask<Object, String, ThirdFragModel> {
// Url , , return_value_of_doInBackground
//private ProgressDialog dialog;
#Override
protected void onPreExecute() {
super.onPreExecute();
//dialog.show(); // this is for ProgressDialog
}
#Override
protected ThirdFragModel doInBackground(Object... params) {
//send and receive data over the web
// can be used to send and receive "streaming" data whose length is not
// known in advance
HttpURLConnection connection = null;
BufferedReader reader = null;
try {
URL url = new URL(params[0].toString());
RecyclerViewAdapter.ItemListener itemListener = (RecyclerViewAdapter.ItemListener) params[1];
connection = (HttpURLConnection) url.openConnection();
connection.connect();
InputStream stream = connection.getInputStream(); // this is used to store
// the response, response is always stream
reader = new BufferedReader(new InputStreamReader(stream));
// BufferedReader reads the stream line by line and then store in the reader
StringBuffer buffer = new StringBuffer();
String line = "";
while ((line = reader.readLine()) != null) {
buffer.append(line);
}
String finalJson = buffer.toString(); // this contails whole JSON data from the URL
JSONObject parentObject = new JSONObject(finalJson);
JSONArray parentArray = parentObject.getJSONArray("movies"); // "movies" is the JSON Array-object in JSON data URL
List<JsonURLFullModel> movieModelList = new ArrayList<>();
//StringBuffer finalBufferedaData = new StringBuffer();
for (int i = 0; i < parentArray.length(); i++) {
JSONObject finalObject = parentArray.getJSONObject(i); // getting first json object from JSON ARRAY "movies"
JsonURLFullModel movieModel = new JsonURLFullModel();
movieModel.setMovie(finalObject.getString("movie"));
movieModel.setImage(finalObject.getString("image"));
movieModelList.add(movieModel); // adding the final object in list
//finalBufferedaData.append(movieName +"-"+ year +"\n");
}
ThirdFragModel thirdFragModel= new ThirdFragModel(itemListener,movieModelList);
return thirdFragModel;
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
} finally {
if (connection != null)
connection.disconnect();
try {
if (reader != null)
reader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
#Override
protected void onPostExecute(ThirdFragModel result) {
super.onPostExecute(result);
//jsonfull.setText(result);
//dialog.dismiss(); // closing dialog, before the content load in ListView(i.e until application lodading it will run, then dialog closes)
adapter = new RecyclerViewAdapter(getActivity(), result.getMovieModelList(), result.getItemListener());
/**
AutoFitGridLayoutManager that auto fits the cells by the column width defined.
**/
layoutManager = new AutoFitGridLayoutManager(getActivity(), 500);
recyclerView.setLayoutManager(layoutManager);
recyclerView.setAdapter(adapter);
/**
Simple GridLayoutManager that spans two columns
**/
/*GridLayoutManager manager = new GridLayoutManager(this, 2, GridLayoutManager.VERTICAL, false);
recyclerView.setLayoutManager(manager);*/
//AnimationUtils.animate(jsonFullL1, true);
}
}
public void moveToLoginActivity() {
Intent intent = new Intent(getActivity(), LoginActivity.class);
startActivity(intent);
}
#Override
public void onItemClick(int mPosition,List<JsonURLFullModel> mValues ) {
Log.d("Fragposition",mPosition+":"+mValues);
Toast.makeText(getActivity(), mValues.get(mPosition).getMovie() + " is clicked", Toast.LENGTH_SHORT).show();
//Intent intent = new Intent(getActivity(), FullScreenViewActivity.class);
Intent intent = new Intent(getActivity(), FullScreenViewInitialActivity.class);
intent.putExtra("position", mPosition);
intent.putExtra("values", (Serializable) mValues);
startActivity(intent);
}
public static List<JsonURLFullModel> getCart() {
if(cart == null) {
cart = new Vector<JsonURLFullModel>();
}
return cart;
}
}
Here is my adapter class which we used in ThirdFragment class as shown above
RecyclerViewAdapter.java
public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.ViewHolder> {
static List<JsonURLFullModel> mValues;
Context mContext;
private ItemListener mListener;
static int mPosition;
public RecyclerViewAdapter(Context context, List<JsonURLFullModel> values, ItemListener itemListener) {
mValues = values;
mContext = context;
mListener=itemListener;
}
public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
public TextView textView;
public ImageView imageView;
public RelativeLayout relativeLayout;
JsonURLFullModel item;
public ViewHolder(View v) {
super(v);
v.setOnClickListener(this);
textView = (TextView) v.findViewById(R.id.textView1);
imageView = (ImageView) v.findViewById(R.id.imageView1);
relativeLayout = (RelativeLayout) v.findViewById(R.id.relativeLayout);
}
public void setData(final JsonURLFullModel item) {
this.item = item;
Log.d("INFO",item.getImage());
//https://futurestud.io/tutorials/picasso-image-resizing-scaling-and-fit
Picasso.with(mContext)
.load(item.getImage())
.error(R.drawable.ferrari)
.noPlaceholder()
.noFade()
.fit()
.into(imageView, new com.squareup.picasso.Callback() {
#Override
public void onSuccess() {
//Success image already loaded into the view
Log.d("INFO","success");
}
#Override
public void onError() {
//Error placeholder image already loaded into the view, do further handling of this situation here
Log.d("INFO","error");
}
});
/*imageView.post(new Runnable() {
#Override
public void run(){
Glide.with(mContext).load(item.getImage()).asBitmap().override(1080, 600).into(imageView);
}
});*/
textView.setText(item.getMovie());
}
#Override
public void onClick(View view) {
if (mListener != null) {
mListener.onItemClick(getAdapterPosition(),mValues); // this.getPosition() is depricated
// in API 22 and we got getAdapterPosition()
}
}
}
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(mContext).inflate(R.layout.recycler_view_item, parent, false);
return new ViewHolder(view);
}
#Override
public void onBindViewHolder(ViewHolder Vholder, int position) {
Vholder.setData(mValues.get(position));
mPosition=position;
}
#Override
public int getItemCount() {
return mValues.size();
}
//Below interface implimentation can be found in ThirdFragment
// you can write below interface separetly or in you can write in this class like below
public interface ItemListener {
void onItemClick(int mPosition, List<JsonURLFullModel> mValues);
}
}
FullScreenViewInitialActivity.java
public class FullScreenViewInitialActivity extends FragmentActivity {
ImageFragmentPagerAdapter imageFragmentPagerAdapter;
ViewPager viewPager;
static ArrayList<JsonURLFullModel> mValues;
static int position;
Button addToBagButton;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fullscreen_view_initial);
addToBagButton = (Button) findViewById(R.id.b_add_to_bag);
Intent i = getIntent();
position=i.getIntExtra("position",0);
Log.d("Acposition",""+position);
mValues = (ArrayList<JsonURLFullModel>) getIntent().getSerializableExtra("values");
imageFragmentPagerAdapter = new ImageFragmentPagerAdapter(getSupportFragmentManager());
viewPager = (ViewPager) findViewById(R.id.intial_pager);
viewPager.setAdapter(imageFragmentPagerAdapter);
viewPager.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
});
CircleIndicator circleIndicator = (CircleIndicator) findViewById(R.id.imageIndicator);
circleIndicator.setViewPager(viewPager);
/*viewPager.setOnClickListener(new View.OnClickListener(){
public void onClick(View v){
Intent intent = new Intent(FullScreenViewInitialActivity.this, FullScreenViewActivity.class);
intent.putExtra("position", position);
intent.putExtra("values", (Serializable) mValues);
startActivity(intent);
}
});*/
final List<JsonURLFullModel> cart = ThirdFragment.getCart();
final JsonURLFullModel selectedProduct = mValues.get(position);
addToBagButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
cart.add(selectedProduct);
Log.d("cart",""+cart.size());
//finish();
Button b_add_to_bag = (Button) findViewById(R.id.b_add_to_bag);
b_add_to_bag.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent reviewOrderIntent = new Intent(FullScreenViewInitialActivity.this, FullScreenViewReviewActivity.class);
startActivity(reviewOrderIntent);
}
});
}
});
if(cart.contains(selectedProduct)) {
addToBagButton.setEnabled(false);
addToBagButton.setText("Item in Cart");
}
}
public static class ImageFragmentPagerAdapter extends FragmentPagerAdapter {
public ImageFragmentPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public int getCount() {
return mValues.size();
}
#Override
public Fragment getItem(int position) {
SwipeFragment fragment = new SwipeFragment();
return SwipeFragment.newInstance(position);
}
}
public static class SwipeFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View swipeView = inflater.inflate(R.layout.swipe_fragment, container, false);
ImageView imageView = (ImageView) swipeView.findViewById(R.id.imageView);
/*Bundle bundle = getArguments();
int position = bundle.getInt("position");*/
//JsonURLFullModel imageFileName = mValues.get(position);
try {
BitmapFactory.Options options = new BitmapFactory.Options();
/*options.inJustDecodeBounds = true;
options.inPreferredConfig = Bitmap.Config.ARGB_8888;*/
URL url = new URL(mValues.get(position).getImage());
Log.d("position",""+position);
Bitmap bitmap = BitmapFactory.decodeStream(url.openConnection().getInputStream(),null, options);
if (bitmap != null)
imageView.setImageBitmap(bitmap);
else
System.out.println("The Bitmap is NULL");
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
imageView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(getActivity(), mValues.get(position).getMovie(), Toast.LENGTH_SHORT).show();
}
});
return swipeView;
}
static SwipeFragment newInstance(int position) {
SwipeFragment swipeFragment = new SwipeFragment();
Bundle bundle = new Bundle();
bundle.putInt("position", position);
swipeFragment.setArguments(bundle);
return swipeFragment;
}
}
}
third_fragment.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:fitsSystemWindows="true"
tools:context=".MainActivity">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical"
/>
<!--removed from recycler view
app:layout_behavior="#string/appbar_scrolling_view_behavior"-->
</RelativeLayout>
</android.support.design.widget.CoordinatorLayout>
recycler_view_item.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<android.support.v7.widget.CardView
android:id="#+id/cardView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorAccent"
card_view:cardCornerRadius="#dimen/margin10"
card_view:cardElevation="#dimen/margin10"
card_view:cardMaxElevation="#dimen/margin10"
card_view:contentPadding="#dimen/margin10"
card_view:cardPreventCornerOverlap="false"
android:layout_marginStart="10dp"
android:layout_marginEnd="10dp">
<RelativeLayout
android:id="#+id/relativeLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:layout_gravity="center">
<ImageView
android:id="#+id/imageView1"
android:layout_width="match_parent"
android:layout_height="150dp"
android:scaleType="fitXY"
android:padding="5dp"
android:layout_alignParentTop="true"/>
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:textColor="#color/colorPrimary"
android:layout_marginTop="10dp"
android:layout_below="#+id/imageView1" />
</RelativeLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
activity_fullscreen_view_initial
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:orientation="vertical">
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:fillViewport="true"
android:layout_weight="1">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above="#+id/cart_button_layout"
android:layout_alignParentTop="true"
android:orientation="vertical">
<android.support.v4.view.ViewPager
android:id="#+id/intial_pager"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
<me.relex.circleindicator.CircleIndicator
android:id="#+id/imageIndicator"
android:layout_width="match_parent"
android:layout_height="48dp"
android:layout_alignBottom="#+id/intial_pager"
android:layout_marginBottom="10dp" />
</LinearLayout>
</ScrollView>
<ScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:fillViewport="true"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<include
layout="#layout/full_screen_size_picker"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</ScrollView>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/cart_button_layout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:gravity="bottom"
android:paddingLeft="5dp"
android:paddingRight="5dp"
android:layout_alignParentBottom="true"
android:orientation="horizontal">
<Button
android:id="#+id/b_save"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="5dp"
android:layout_weight="1"
android:background="#D3D3D3"
android:text="save"
android:textColor="#000000" />
<Button
android:id="#+id/b_add_to_bag"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_weight="1"
android:background="#color/colorPrimary"
android:text="add to bag"
android:textColor="#FFF" />
</LinearLayout>
</LinearLayout>
swipe_fragment.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/imageView"
android:layout_gravity="center_horizontal"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
</LinearLayout>

Try setting the setting the RecyclerView with an empty Adapter before you execute your AsyncTask.
View rootView= inflater.inflate(R.layout.fragment_third, container, false);
recyclerView = (RecyclerView) rootView.findViewById(R.id.recyclerView);
-->recyclerView.setAdapter(new RecyclerViewAdapter(getActivity(), new ArrayList<>(), null);
new JSONTask().execute(url, this);
Then create a method in the RecyclerViewAapter to load the the populated List<JsonURLFullModel> from the AsyncTask's onPostExecute.
public void loadJson(List<JsonURLFullModel> jsonList){
mValues = jsonList;
notifyDataSetChanged();
}
If that doesn't work trying loading on the Ui thread from Asynctask using runOnUiThread
runOnUiThread(new Runnable() {
#Override
public void run() {
adapter.loadJson(...)
}
});
Edit 1 Adding loadJson to your RecyclerViewAapter.class
#Override
public int getItemCount() {
return mValues.size();
}
public void loadJson(List<JsonURLFullModel> jsonList){
mValues = jsonList;
notifyDataSetChanged();
}
//Below interface implimentation can be found in ThirdFragment
// you can write below interface separetly or in you can write in this class like below
public interface ItemListener {
void onItemClick(int mPosition, List<JsonURLFullModel> mValues);
}
Call the method in your PostExecute
#Override
protected void onPostExecute(ThirdFragModel result) {
super.onPostExecute(result);
//jsonfull.setText(result);
//dialog.dismiss(); // closing dialog, before the content load in ListView(i.e until application lodading it will run, then dialog closes)
getActivity().runOnUiThread(new Runnable() {
#Override
public void run() {
adapter.loadJson(result.getMovieModelList());
}
});
}
Also add your the Layout manager for the RecyclerView in onCreateView
View rootView= inflater.inflate(R.layout.fragment_third, container, false);
recyclerView = (RecyclerView) rootView.findViewById(R.id.recyclerView);
-->recyclerView.setAdapter(new RecyclerViewAdapter(getActivity(), new ArrayList<>(), null);
layoutManager = new AutoFitGridLayoutManager(getActivity(), 500);
recyclerView.setLayoutManager(layoutManager);

getView() not called even when getCount() has results

Sorry for my english, not my first language.
Im creating an app in Android and I have a issue:
I have a TabBar with 2 fragments (1 - ProductFragment and 2 - CartFragment), in second Fragment (CartFragment) I have a ListView and that ListView is initial null.
CartFragment Layout:
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="15dp">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/lancarvenda_carrinho_lvwresultado"
android:orientation="vertical" />
</LinearLayout>
</FrameLayout>
In ProductFragment I have a button with onclick, that onclick Intents another activity and in that activity I add values in my public Custom List:
public static List<PesquisarProdutoResponse> Carrinho = new ArrayList<>();
When I done with adding values that I need, I close that activity and return to TabBar and expects that ListView has been populated.
The method that populate my public list:
private void PesquisarProduto()
{
RequestQueue sQueue = Volley.newRequestQueue(getActivity());
String sEnderecoBase = "http://www.my-url";
StringRequest sRequest = new StringRequest(Request.Method.POST, sEnderecoBase, new Response.Listener<String>() {
#Override
public void onResponse(String response)
{
PesquisarProdutoResponse sResultado = new Gson().fromJson((String) response, PesquisarProdutoResponse.class);
if (sResultado.getCodigoRetorno() != 0)
{
//lastText = "Produto não encontrado";
//barcodeView.setStatusText("Produto não encontrado");
}
else
{
Variaveis.Carrinho.add(sResultado);
try {
List<PesquisarProdutoObjetoRetorno> sCarrinhoAuxiliar = new ArrayList<>();
for (int i = 0; i < Variaveis.Carrinho.size(); i++) {
PesquisarProdutoObjetoRetorno sItem = Variaveis.Carrinho.get(i).getDadosProduto();
sCarrinhoAuxiliar.add(sItem);
}
LancarVendaCarrinhoListViewAdapter sAdaptador = new LancarVendaCarrinhoListViewAdapter(getActivity(),
sCarrinhoAuxiliar);
fCarrinhoResultado.setAdapter(sAdaptador);
sAdaptador.notifyDataSetChanged();
Object oi = fCarrinhoResultado.getCount();
oi.toString();
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
}, new Response.ErrorListener()
{
#Override
public void onErrorResponse(VolleyError error)
{
byte[] sBytesResposta = error.networkResponse.data;
String sTexto = new String(sBytesResposta);
Mensagem.ExibirAlert(getActivity(), String.valueOf(error.networkResponse.statusCode));
}
})
{
#Override
public Map<String, String> getHeaders() throws AuthFailureError
{
Map<String, String> sHeaders = new HashMap<>();
sHeaders.put("Authorization", "Bearer " + Variaveis.ApiToken);
return sHeaders;
}
#Override
public byte[] getBody() throws AuthFailureError
{
return new Gson().toJson(sCorpoBusca).getBytes();
}
#Override
public String getBodyContentType()
{
return "application/json";
}
};
sQueue.add(sRequest);
}
ListView Adapter:
public class LancarVendaCarrinhoListViewAdapter extends BaseAdapter
{
private Context mContext;
//private LayoutInflater mInflater;
private List<PesquisarProdutoObjetoRetorno> mDataSource;
public LancarVendaCarrinhoListViewAdapter(Context context, List<PesquisarProdutoObjetoRetorno> items)
{
mContext = context;
mDataSource = items;
}
#Override
public int getCount() {
return mDataSource.size();
}
#Override
public Object getItem(int position) {
return mDataSource.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent)
{
try
{
LayoutInflater mInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View sView = mInflater.inflate(R.layout.activity_lancarvenda_carrinho_list_view_item, parent, false);
PesquisarProdutoObjetoRetorno sItem = (PesquisarProdutoObjetoRetorno) getItem(position);
TextView descricao = (TextView)sView.findViewById(R.id.lancarvenda_carrinho_item_txtdescricao);
descricao.setText(sItem.getDescricao());
TextView preco = (TextView)sView.findViewById(R.id.lancarvenda_carrinho_item_txvpreco);
preco.setText(String.valueOf(sItem.getPreco()));
EditText quantidade = (EditText)sView.findViewById(R.id.lancarvenda_carrinho_item_etquantidade);
quantidade.setText("1");
return sView;
}
catch (Exception e)
{
e.printStackTrace();
return null;
}
}
}
My layout of row:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<de.hdodenhof.circleimageview.CircleImageView xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/lancarvenda_carrinho_item_imvFoto"
android:layout_width="80dp"
android:layout_height="80dp"
android:layout_gravity="center_horizontal"
android:background="#drawable/circulo_foto2"
app:border_color="#898989"
app:border_width="2dp" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:layout_marginLeft="10dp">
<TextView
android:id="#+id/lancarvenda_carrinho_item_txtdescricao"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:text="Relogio"
android:textSize="20dp"
android:textStyle="bold"
android:layout_marginRight="8dp"
android:lines="2"
android:minLines="2"
android:singleLine="false"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:id="#+id/lancarvenda_carrinho_item_txvpreco"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="8dp"
android:text="R$ 399,89"
android:textColor="#1ba39c"
android:textSize="20dp"
android:layout_marginRight="70dp"/>
<EditText
android:id="#+id/lancarvenda_carrinho_item_etquantidade"
android:layout_width="50dp"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:backgroundTint="#9a9b9c"
android:hint="0"
android:textColor="#2a2d2e"
android:layout_marginRight="8dp"/>
</RelativeLayout>
</LinearLayout>
</LinearLayout>
</LinearLayout>
</RelativeLayout>
In debug mode, when code pass in getCount in Adapter, I have size more than 1 and my list still not show! Even if I close TabBar and reopen and set adapter (with values) on onCreate method.
What can I do to my ListView show?
EDIT
I inflate listview on onCreate:
super.onCreate(savedInstanceState);
LayoutInflater sInflater = getActivity().getLayoutInflater();
View sView = sInflater.inflate(R.layout.fragment_lancarvenda_carrinho, null);
fCarrinhoResultado = (ListView) sView.findViewById(R.id.lancarvenda_carrinho_lvwresultado);

Try making your list a member of the class instead of a local variable
private void PesquisarProduto()
{
RequestQueue sQueue = Volley.newRequestQueue(getActivity());
String sEnderecoBase = "http://www.my-url";
StringRequest sRequest = new StringRequest(Request.Method.POST, sEnderecoBase, new Response.Listener<String>() {
// Make cart list a private data member so it doesn't loose scope //
List<PesquisarProdutoObjetoRetorno> sCarrinhoAuxiliar;
#Override
public void onResponse(String response)
{
PesquisarProdutoResponse sResultado = new Gson().fromJson((String) response, PesquisarProdutoResponse.class);
if (sResultado.getCodigoRetorno() != 0)
{
//lastText = "Produto não encontrado";
//barcodeView.setStatusText("Produto não encontrado");
}
else
{
Variaveis.Carrinho.add(sResultado);
try {
sCarrinhoAuxiliar = new ArrayList<>();
...
}
...
}
...
}
...
}
...
}

Declare your List sCarrinhoAuxiliar and adapter sAdaptador as global.
Update your OnCreateView() as below:
// Global
List<PesquisarProdutoObjetoRetorno> sCarrinhoAuxiliar;
LancarVendaCarrinhoListViewAdapter sAdaptador;
.........................
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
....................
........................
sCarrinhoAuxiliar = new ArrayList<>();
sAdaptador = new LancarVendaCarrinhoListViewAdapter(getActivity(), sCarrinhoAuxiliar);
fCarrinhoResultado.setAdapter(sAdaptador);
.......................
...............
}
Update your onResponse() method as below:
#Override
public void onResponse(String response) {
.....................
..........................
try {
// Clear old data
sCarrinhoAuxiliar.clear();
for (int i = 0; i < Variaveis.Carrinho.size(); i++) {
PesquisarProdutoObjetoRetorno sItem = Variaveis.Carrinho.get(i).getDadosProduto();
sCarrinhoAuxiliar.add(sItem);
}
// Update list
sAdaptador.notifyDataSetChanged();
.............
....................
}
catch (Exception e) {
e.printStackTrace();
}
}
Hope this will help~

I got help from another forum and I was able to solve my problem:
I override two methods: OnCreate (inflate and receive view) and OnCreateView (find the product and put on listview), I eliminate method OnCreate and put everything on OnCreateView!
That solve my problem!
Thanks to everybody!

Android Base Adapter not writing to text view

I have a problem, the class DataListAdapter is not writing to the text views given to it, leaving the text views blank. The activity which this concerns is thus:
public class LoadData extends Activity
{
ListView dataList;
MachineDataAdapter adapter;
Context context;
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.load_data);
dataList = (ListView) findViewById(R.id.machineList);
//Log.d("intent", getIntent().getStringExtra("json"));
dataList.setAdapter(new DataListAdapter(getIntent().getStringExtra("json")));
context = this;
}
public void backClicked(View view)
{
Intent mainMenu = new Intent(getApplicationContext(), MainMenu.class);
startActivity(mainMenu);
}
public void launchScan(View view)
{
Intent scanLaunch = new Intent(getApplicationContext(), ScanTag.class);
startActivity(scanLaunch);
}
class DataListAdapter extends BaseAdapter
{
private JSONObject json;
private Iterator<String> keys;
LayoutInflater inflater;
public DataListAdapter(String jsonString)
{
try
{
json = new JSONObject(jsonString);
} catch (JSONException e)
{
e.printStackTrace();
}
keys = json.keys();
inflater = getLayoutInflater();
}
public int getCount() {
return json.names().length();
}
public Object getItem(int arg0) {
return null;
}
public long getItemId(int position) {
return position;
}
public View getView(int i, View convertView, ViewGroup parent) {
if(convertView == null)
convertView = inflater.inflate(R.layout.machine_data_row, parent, false);
TextView title = (TextView) convertView.findViewById(R.id.machineRowTitle);
TextView data = (TextView) convertView.findViewById(R.id.machineRowData);
if(keys.hasNext())
{
String key = keys.next();
String value = null;
try
{
value = json.getString(key);
} catch (JSONException e)
{
e.printStackTrace();
}
Log.d("json", key);
title.setText(key);
data.setText(value);
}
return (convertView);
}
}
}
And here is machine_data_row.xml for completeness:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="#+id/machineRowTitle"
android:textSize="20sp"
android:textStyle="bold"
android:textColor="#0000FF"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
<TextView
android:id="#+id/machineRowData"
android:textColor="#5C002E"
android:textSize="17sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
</LinearLayout>
The json works just fine, I am successfully printing each key using Log.d. Any help would be greatly appreciated.
Edit: This is the json data:
{"a":"b","c":"d","e":"f"}

Typically I like to do something like this in the getView:
if (convertView == null) {
LayoutInflater inflater = ((Activity) context).getLayoutInflater();
row = inflater.inflate(layoutResourceId, parent, false);
//Make sure the textview exists in this xml
} else {
row = convertView;
}
TextView titleLabel = (TextView) row.findViewById(R.id.titleText);

I have no idea why this worked, but getting the key using key = json.names().getString(i);
Solved the issue.

ListView is not appearing - Fetching Data from Server

I am trying to Retrieve data from server and want to show that data in a ListView.
Problem: ListView is not Appearing
OrdersActivity.java:
public class OrdersActivity extends Activity
{
public static final String LOG_TAG = "OrdersActivity";
ArrayList<HashMap<String, String>> d = new ArrayList<HashMap<String, String>>();;
ListView list;
OrdersAdapter adapter;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_orders);
final ArrayList<HashMap<String, String>> itemsList = new ArrayList<HashMap<String, String>>();
list = (ListView) findViewById(R.id.listView1);
adapter = new OrdersAdapter(this, itemsList);
list.setAdapter(adapter);
// Permission StrictMode
if (android.os.Build.VERSION.SDK_INT > 9) {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
}
}
}
activity_orders.java:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ffffff" >
<include
android:id="#+id/header"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
layout="#layout/header_orders" />
<ListView
android:layout_width="match_parent"
android:id="#+id/listView1"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/header"
android:cacheColorHint="#00000000"
android:divider="#b5b5b5"
android:dividerHeight="1dp"
android:layout_alignParentBottom="true" />
</RelativeLayout>
OrdersActivity.java:
public class OrdersAdapter extends BaseAdapter {
TextView tName,tId,tOid ;
private Activity activity;
private ArrayList<HashMap<String, String>> data;
private static LayoutInflater inflater=null;
String strName,strMemberID ;
public OrdersAdapter(Activity a, ArrayList<HashMap<String, String>> d) {
activity = a;
data=d;
inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public int getCount() {
return data.size();
// return (data == null) ? 0 : data.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
View vi=convertView;
if(convertView==null)
vi = inflater.inflate(R.layout.listrow_orders, null);
tId = (TextView)vi.findViewById(R.id.txtTotalAmount);
tName = (TextView)vi.findViewById(R.id.txtItemDetails);
HashMap<String, String> item = new HashMap<String, String>();
item = data.get(position);
tId.setText(item.get(strName));
tName.setText(item.get(strMemberID));
String url = "http://172.16.0.4/res/order_fetch.php";
Intent intent= activity.getIntent();
String MemberID = intent.getStringExtra("MemberID");
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("sMemberID", MemberID));
String resultServer = getHttpPost(url,params);
strMemberID = "";
strName = "";
JSONObject c;
try {
c = new JSONObject(resultServer);
strMemberID = c.getString("TotalAmount");
strName = c.getString("ItemDetails");
if(!strMemberID.equals(""))
{
tName.setText(strName);
tId.setText(strMemberID);
}
else
{
tName.setText("-");
tId.setText("-");
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return vi;
}
public String getHttpPost(String url,List<NameValuePair> params) {
StringBuilder str = new StringBuilder();
HttpClient client = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
try {
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse response = client.execute(httpPost);
StatusLine statusLine = response.getStatusLine();
int statusCode = statusLine.getStatusCode();
if (statusCode == 200) { // Status OK
HttpEntity entity = response.getEntity();
InputStream content = entity.getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(content));
String line;
while ((line = reader.readLine()) != null) {
str.append(line);
}
} else {
Log.e("Log", "Failed to download result..");
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return str.toString();
}
}
listrow_orders.xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginTop="5dp"
android:background="#drawable/btn_background"
android:orientation="horizontal"
android:padding="5dip" >
<TextView
android:id="#+id/txtTotalAmount"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/textView1"
android:layout_below="#+id/textView1"
android:textColor="#a60704"
android:text="TextView" />
<TextView
android:id="#+id/txtItemDetails"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/textView3"
android:layout_below="#+id/textView3"
android:textColor="#a60704"
android:text="Item Details Here" />
<TextView
android:id="#+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/txtTotalAmount"
android:layout_below="#+id/txtTotalAmount"
android:layout_marginTop="17dp"
android:text="Ordered Items:"
android:textColor="#a60704"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:text="Total Amount"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#a60704" />
</RelativeLayout>

You need to store the data within the views itself when comes to customizing of ListView. Trying implementing this:
public class PlacesListAdapter extends BaseAdapter
{
// private Context mContext;
private LayoutInflater mInflater;
private ArrayList<String> AL_id_text = new ArrayList<String>();
private ArrayList<String> AL_text = new ArrayList<String>();
public PlacesListAdapter(Context c, ArrayList<String> AL_name_time, ArrayList<String> AL_name_time1)
{
mInflater = LayoutInflater.from(c);
// mContext = c;
this.AL_id_text = AL_name_time;
this.AL_text = AL_name_time1;
}
public int getCount()
{
return AL_id_text.size();
}
public Object getItem(int position)
{
return AL_id_text.get(position);
}
public long getItemId(int position)
{
return position;
}
static class ViewHolder
{
TextView txt_maintext;
TextView txt_mtext;
}
public View getView(final int position, View convertView, ViewGroup parent)
{
// TODO Auto-generated method stub
final ViewHolder holder;
if (convertView == null) {
convertView = mInflater.inflate(R.layout.place_row, null);
holder = new ViewHolder();
holder.txt_maintext = (TextView) convertView.findViewById(R.id.txt_maintext);
holder.txt_mtext = (TextView) convertView.findViewById(R.id.txt_mtext);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.txt_maintext.setText(AL_id_text.get(position));
holder.txt_mtext.setText(AL_text.get(position));
return convertView;
}
}

The getView() method is called by android's ListView when it is rendering the view elements on your screen, piece by piece. You shouldn't be fetching your data in your getView() method which, more often than not, will block your UI thread.
The best way to do this would be to fetch your data beforehand, store it in the objects you like and use them to create ListAdapter instances. This way, you wouldn't need to wait for the image fetching to complete while Android is drawing the ListView for you.
So try fetching the data using
getHttpPost()
outside the getView method, preferably Asynchronously.
Populate your itemsList appropriately after fetching data using this method. Create your ListAdapter instance using this itemList data. Set this adapter to your listview.