Develop Reference

Display data from json in RecyclerView of Fragment using AsyncTask?

I have the following classes:
CategoryFragment.java
public class CategoryFragment extends Fragment {
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "category_name";
// TODO: Rename and change types of parameters
private int mParam1;
public CategoryFragment() {
// Required empty public constructor
}
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* #param param1 Parameter 1.
* #return A new instance of fragment CategoryFragment.
*/
// TODO: Rename and change types and number of parameters
public static CategoryFragment newInstance(int param1) {
CategoryFragment fragment = new CategoryFragment();
Bundle args = new Bundle();
args.putInt(ARG_PARAM1, param1);
fragment.setArguments(args);
return fragment;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getInt(ARG_PARAM1);
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Context context = getActivity();
View view = inflater.inflate(R.layout.listado_noticias, container, false);
RecyclerView rw_noticias = view.findViewById(R.id.rw_noticias);
new LoadArticlesTask().execute(MainScreen.mPrefs,MainScreen.hasRemember,view,context,rw_noticias);
return null;
}
}
listado_noticias.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/constraintLayout"
xmlns:tools="http://schemas.android.com/tools">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/rw_noticias"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
LoadArticlesTask.java
public class LoadArticlesTask extends AsyncTask<Object, Void, List<Article>> {
private static final String TAG = "LoadArticlesTask";
private View view;
private Context context;
private RecyclerView rw_noticias;
#Override
protected List<Article> doInBackground(Object... params) {
SharedPreferences sp = (SharedPreferences)params[0];
boolean hasRemember = (boolean)params[1];
view = (View)params[2];
context = (Context)params[3];
rw_noticias = (RecyclerView)params[4];
List<Article> res = null;
Properties ini = new Properties();
ini.setProperty(RESTConnection.ATTR_SERVICE_URL,Constants.URL_SERVICE);
ini.setProperty(RESTConnection.ATTR_REQUIRE_SELF_CERT,Constants.CERT_VALUE);
ModelManager.configureConnection(ini);
String strIdUser;
String strApiKey;
String strIdAuthUser;
if(hasRemember){
strIdUser = sp.getString("pref_apikey","");
strApiKey = sp.getString("pref_IdUser","");
strIdAuthUser = sp.getString("pref_strIdAuthUser","");
}else {
strIdUser = ModelManager.getLoggedIdUSer();
strApiKey = ModelManager.getLoggedApiKey();
strIdAuthUser = ModelManager.getLoggedAuthType();
}
//ModelManager uses singleton pattern, connecting once per app execution in enough
if (!ModelManager.isConnected()){
// if it is the first login
if (strIdUser==null || strIdUser.equals("")) {
try {
ModelManager.login(Constants.USER, Constants.PASS);
} catch (AuthenticationError e) {
Log.e(TAG, e.getMessage());
}
}
// if we have saved user credentials from previous connections
else{
ModelManager.stayloggedin(strIdUser,strApiKey,strIdAuthUser);
}
}
//If connection has been successful
if (ModelManager.isConnected()) {
try {
// obtain 6 articles from offset 0
res = ModelManager.getArticles(6, 0);
for (Article article : res) {
// We print articles in Log
Log.i(TAG, String.valueOf(article));
}
} catch (ServerCommunicationError e) {
Log.e(TAG,e.getMessage());
}
}
return res;
}
#Override
protected void onPostExecute(List<Article> articles) {
super.onPostExecute(articles);
Log.i("Articles", articles.toString());
for (Article article : articles) {
// We print articles in Log
Log.i("Articles", String.valueOf(article));
}
refreshList(articles,view);
}
public void refreshList(List<Article> data, View view){
if (data == null){
return;
}
for (Article article : data) {
// We print articles in Log
Log.i("Articles_rl", String.valueOf(article));
}
final LinearLayoutManager layoutManager = new LinearLayoutManager(context);
layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
rw_noticias.setLayoutManager(layoutManager);
ArticlesAdapter articlesAdapter = new ArticlesAdapter(data);
rw_noticias.setAdapter(articlesAdapter);
((ArticlesAdapter)rw_noticias.getAdapter()).updateData(data);
}
}
ArticlesAdapter.java
public class ArticlesAdapter extends RecyclerView.Adapter<ArticlesAdapter.ArticleViewHolder>{
private List<Article> articulos;
public ArticlesAdapter(List<Article> articulos){
this.articulos = articulos;
}
#NonNull
#Override
public ArticleViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.card_layout_article, parent, false);
return new ArticleViewHolder(v);
}
#Override
public void onBindViewHolder(#NonNull ArticleViewHolder holder, int position) {
Bitmap imagen = null;
holder.category.setText(articulos.get(position).getCategory());
holder.title.setText(articulos.get(position).getTitleText());
holder.resumen.setText(articulos.get(position).getAbstractText());
try {
imagen = SerializationUtils.base64StringToImg(articulos.get(position).getImage().getImage());
} catch (ServerCommunicationError serverCommunicationError) {
serverCommunicationError.printStackTrace();
}
holder.thumbnail.setImageBitmap(imagen);
}
#Override
public int getItemCount() {
return articulos.size();
}
#Override
public void onAttachedToRecyclerView(RecyclerView recyclerView) {
super.onAttachedToRecyclerView(recyclerView);
}
public void updateData(List<Article>data){
articulos.clear();
articulos.addAll(data);
notifyDataSetChanged(); //notify to repaint the list
}
public void articlesFilterCategory(String category){
for (Article a : articulos){
if(!category.equals("ALL") && !a.getCategory().equals(category)){
articulos.remove(a);
}
}
}
public static class ArticleViewHolder extends RecyclerView.ViewHolder{
CardView cv;
TextView category;
TextView title;
TextView resumen;
ImageView thumbnail;
public ArticleViewHolder(#NonNull View itemView) {
super(itemView);
cv = (CardView)itemView.findViewById(R.id.card_article);
category = (TextView)itemView.findViewById(R.id.category_noticia);
resumen = (TextView)itemView.findViewById(R.id.resumen_noticia);
thumbnail = (ImageView)itemView.findViewById(R.id.thumbnail);
}
}
}
card_layout_article.xml
<androidx.cardview.widget.CardView 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:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:foreground="?attr/selectableItemBackground"
android:ellipsize="end"
android:id="#+id/card_article"
>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingBottom="16dp"
android:paddingHorizontal="1dp">
<ImageView
android:id="#+id/thumbnail"
android:layout_width="match_parent"
android:layout_height="231dp"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="1dp"
android:layout_marginTop="1dp"
android:adjustViewBounds="true"
android:background="#drawable/a15877171854035"
android:cropToPadding="true"
android:scaleType="fitXY"
android:src="#drawable/degradado" />
<View
android:layout_width="match_parent"
android:layout_height="233dp"
android:background="#drawable/degradado" />
<TextView
android:id="#+id/title_noticia"
android:layout_width="193dp"
android:layout_height="wrap_content"
android:layout_alignBottom="#+id/thumbnail"
android:layout_alignParentStart="true"
android:layout_alignParentEnd="true"
android:layout_marginStart="107dp"
android:layout_marginEnd="107dp"
android:layout_marginBottom="95dp"
android:text="Nuevo caso de coronavirus"
android:textAlignment="center"
android:textColor="#color/cardview_light_background"
android:textSize="20dp"
android:textStyle="bold" />
<TextView
android:id="#+id/category_noticia"
android:layout_width="91dp"
android:layout_height="31dp"
android:layout_alignBottom="#+id/thumbnail"
android:layout_alignParentStart="true"
android:layout_alignParentEnd="true"
android:layout_marginStart="11dp"
android:layout_marginEnd="316dp"
android:layout_marginBottom="145dp"
android:text="NATIONAL"
android:textAlignment="center"
android:textColor="#color/cardview_light_background"
android:textSize="15dp"
android:textStyle="bold" />
<TextView
android:id="#+id/resumen_noticia"
android:layout_width="match_parent"
android:layout_height="90dp"
android:layout_alignBottom="#+id/thumbnail"
android:layout_alignParentStart="true"
android:layout_alignParentEnd="true"
android:layout_marginStart="0dp"
android:layout_marginEnd="0dp"
android:layout_marginBottom="-1dp"
android:text="Nuevo caso de coronavirus"
android:textAlignment="viewStart"
android:textColor="#color/cardview_light_background"
android:textSize="11dp"
android:textStyle="bold" />
</RelativeLayout>
</androidx.cardview.widget.CardView>
In the log.i that I have in the Post Execute of the async task I can see how the articles are formed (The Article class has a toString () function).
But I can't get the articles to be seen in the RecyclerView. What am I doing wrong?
Capture: Main screen with recyclerView empty...
Thanks!

Pass the instance of RecyclerView like -
new LoadArticlesTask().execute(MainScreen.mPrefs, MainScreen.hasRemember, view, rw_noticias, context);
Receive this on LoadArticlesTask as you are doing with View.
Don't re-initialize/use this code inside your class -
RecyclerView rw_noticias = view.findViewById(R.id.rw_noticias);

In your card_layout_article.xml, make height wrap_content for cardview:
<androidx.cardview.widget.CardView 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:orientation="vertical" android:layout_width="match_parent"
android:layout_height="wrap_content"
........
........
Also in the layout of your recycler view instead of ConstraintLayout try to use RelativeLayout as the parent:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/constraintLayout"
xmlns:tools="http://schemas.android.com/tools">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/rw_noticias"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>

Unable to display fetch data from MYSQL database in custom gridview in android

In my app I use grid view to display data. grid view is in a fragment.I already retrieve data from mysql database in Log cat but that json data not display in custom grid.
activity_product_list.xml
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:tools="http://schemas.android.com/tools"
tools:context=".DrawerActivity">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<TextView
android:id="#+id/header2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="PRODUCTS : -"
android:textSize="20sp"
android:textStyle="bold"
android:textColor="#color/blue"/>
<GridView
android:id="#+id/productlist"
android:layout_below="#+id/header2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:numColumns="2"
android:horizontalSpacing="2dp"
android:layout_marginTop="#dimen/activity_horizontal_margin">
</GridView>
</RelativeLayout>
ProductListFragment.java
public class ProductListFragment extends Fragment {
List<Product> productList;
GridView gridView;
CustomProductList customProductList;
int categoryid;
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.activity_product_list, container,false);
gridView = (GridView) rootView.findViewById(R.id.productlist);
final GlobalVariable ID = (GlobalVariable)getActivity().getApplication();
categoryid = ID.getCategoryid();
productList = new ArrayList<>();
loadProduct();
customProductList = new CustomProductList(getActivity(),productList);
gridView.setAdapter(customProductList);
return rootView;
}
#Override
public void onViewCreated(#NonNull View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
}
private void loadProduct() {
String PRODUCT_URL = "http://192.168.0.101/cart/product/get_all_product.php?vcategoryid="+categoryid;
StringRequest stringRequest= new StringRequest(Request.Method.GET, PRODUCT_URL, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONObject obj = new JSONObject(response);
JSONArray array = obj.getJSONArray("products");
for (int i = 0; i < array.length(); i++){
//getting the user from the response
JSONObject userJson = array.getJSONObject(i);
Product product = new Product();
product.setProductid(userJson.getInt("productid"));
product.setProductName(userJson.getString("productname"));
product.setProductDesc(userJson.getString("productdesc"));
product.setPrice(userJson.getString("productprice"));
productList.add(product);
Log.e("product",userJson+"");
}
customProductList.notifyDataSetChanged();
Log.e("product",customProductList+"");
//customCategoryList = new CustomCategoryList(getActivity(),categoryList);
//recyclerView.setAdapter(customCategoryList);
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
});
Volley.newRequestQueue(getActivity()).add(stringRequest);
}
}
custom_product_list.xml
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ImageView
android:layout_width="200dp"
android:layout_height="200dp"
android:src="#drawable/home_appliances"/>
<TextView
android:id="#+id/productName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Redmi"
android:textStyle="bold"
android:textColor="#color/black"
android:textSize="22sp"/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_marginTop="5dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="RS."
android:textSize="20sp"
android:textStyle="bold"
android:textColor="#color/black"/>
<TextView
android:id="#+id/price"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="9999"
android:textSize="20sp"
android:textStyle="bold"
android:textColor="#color/blue"
android:layout_marginLeft="10dp"/>
</LinearLayout>
CustomProductList.java
public class CustomProductList extends BaseAdapter {
private Context mCtx;
private List<Product> productList;
public CustomProductList(Context mCtx, List<Product> productList) {
this.mCtx = mCtx;
this.productList = productList;
}
#Override
public int getCount() {
return 0;
}
#Override
public Object getItem(int i) {
return null;
}
#Override
public long getItemId(int i) {
return 0;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) mCtx
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View gridView;
if (convertView == null) {
gridView = new View(mCtx);
// get layout from mobile.xml
gridView = inflater.inflate(R.layout.custom_product_list, null);
TextView productname = (TextView) gridView.findViewById(R.id.productName);
TextView price = (TextView) gridView.findViewById(R.id.price);
// getting data for the row
Product product = productList.get(position);
// set data
productname.setText(product.getProductName());
price.setText(product.getPrice());
} else {
gridView = (View) convertView;
}
return gridView;
}
}
This is my code.All data comes from database in logcat as json..But All not display in grid.Please help me.Tell me What is the problem.

Solution:
You forgot to get count the updated list, hence chenge the below code:
#Override
public int getCount() {
return 0;
}
to this:
#Override
public int getCount() {
return this.productList.size();
}
That's it. Hope it helps.

How to update imageview from the parent recyclerview after click on nested recyclerview's imageview

Please check following screenshot, I want to update imageview from parent recyclerview when user click on imageview from nested recyclerview.
I have taken two individual adapters for for parent & nested recyclerview.I am not able to do the functionality for updating image, kindly help.
Parent Recyclerview Adapter:
public class RecyclerViewDataAdapter extends RecyclerView.Adapter<RecyclerViewDataAdapter.ItemRowHolder> {
private ArrayList<PLDModel> dataList;
private Context mContext;
public RecyclerViewDataAdapter(Context context, ArrayList<PLDModel> dataList) {
this.dataList = dataList;
this.mContext = context;
}
#Override
public ItemRowHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.item_card_view, null);
ItemRowHolder mh = new ItemRowHolder(v);
return mh;
}
#Override
public void onBindViewHolder(ItemRowHolder itemRowHolder, int i) {
final String itemTitle = dataList.get(i).getTitle();
final String itemDescription = dataList.get(i).getDescription();
ArrayList<SmallImages> singleSectionItems = dataList.get(i).getSmallImages();
itemRowHolder.itemTitle.setText(Html.fromHtml("<b>" + itemTitle + " </b> " + itemDescription));
SectionListDataAdapter itemListDataAdapter = new SectionListDataAdapter(mContext, singleSectionItems);
itemRowHolder.recyclerSmallImageList.setHasFixedSize(true);
itemRowHolder.recyclerSmallImageList.setLayoutManager(new LinearLayoutManager(mContext, LinearLayoutManager.HORIZONTAL, false));
itemRowHolder.recyclerSmallImageList.setAdapter(itemListDataAdapter);
}
#Override
public int getItemCount() {
return (null != dataList ? dataList.size() : 0);
}
public class ItemRowHolder extends RecyclerView.ViewHolder {
protected TextView itemTitle, expandImage;
protected ImageView bookmarkImage,largeImage;
protected RecyclerView recyclerSmallImageList;
protected Button btnMore;
public ItemRowHolder(View view) {
super(view);
this.itemTitle = (TextView) view.findViewById(R.id.title);
this.bookmarkImage = (ImageView) view.findViewById(R.id.bookmark);
this.largeImage = (ImageView) view.findViewById(R.id.large_image);
this.expandImage = (TextView) view.findViewById(R.id.expand);
this.recyclerSmallImageList = (RecyclerView) view.findViewById(R.id.recycler_small_image_list);
}
}
}
Nested Recyclerview Adapter:
public class SectionListDataAdapter extends RecyclerView.Adapter<SectionListDataAdapter.SingleItemRowHolder> {
private ArrayList<SmallImages> itemsList;
private Context mContext;
public SectionListDataAdapter(Context context, ArrayList<SmallImages> itemsList) {
this.itemsList = itemsList;
this.mContext = context;
}
#Override
public SingleItemRowHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.small_images_view, null);
SingleItemRowHolder mh = new SingleItemRowHolder(v);
return mh;
}
#Override
public void onBindViewHolder(SingleItemRowHolder holder, int i) {
SmallImages singleItem = itemsList.get(i);
}
#Override
public int getItemCount() {
return (null != itemsList ? itemsList.size() : 0);
}
public class SingleItemRowHolder extends RecyclerView.ViewHolder {
protected ImageView itemImage;
public SingleItemRowHolder(View view) {
super(view);
//this.tvTitle = (TextView) view.findViewById(R.id.tvTitle);
this.itemImage = (ImageView) view.findViewById(R.id.item_small_image);
view.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//Toast.makeText(v.getContext(), tvTitle.getText(), Toast.LENGTH_SHORT).show();
}
});
}
}
}

Using two Recyclerview will be hard to control rather than use a Single adapter and control everything from there.I have just worked on this type of thing that's why I am posting my code there may be some unwanted code which u may need.
/////Adapter class
public class AdapterTodayTrip extends RecyclerView.Adapter<AdapterTodayTrip.VHItem> {
private Context mContext;
private int rowLayout;
private List<ModelRouteDetailsUp> dataMembers;
private ArrayList<ModelRouteDetailsUp> arraylist;
private ArrayList<ModelKidDetailsUp> arraylist_kids;
List<String> wordList = new ArrayList<>();
Random rnd = new Random();
int randomNumberFromArray;
private ModelRouteDetailsUp personaldata;
private ProgressDialog pDialog;
private ConnectionDetector cd;
String img_baseurl = "";
String item = "";
public AdapterTodayTrip(Context mcontext, int rowLayout, List<ModelRouteDetailsUp> tripList, String flag, String img_baseurl) {
this.mContext = mcontext;
this.rowLayout = rowLayout;
this.dataMembers = tripList;
wordList.clear();
this.img_baseurl = img_baseurl;
arraylist = new ArrayList<>();
arraylist_kids = new ArrayList<>();
arraylist.addAll(dataMembers);
cd = new ConnectionDetector(mcontext);
pDialog = KPUtils.initializeProgressDialog(mcontext);
}
#Override
public int getItemViewType(int position) {
return position;
}
#Override
public AdapterTodayTrip.VHItem onCreateViewHolder(ViewGroup viewGroup, int viewType) {
View v = LayoutInflater.from(viewGroup.getContext()).inflate(rowLayout, viewGroup, false);
return new AdapterTodayTrip.VHItem(v);
}
#Override
public int getItemCount() {
return dataMembers.size();
}
#Override
public void onBindViewHolder(final AdapterTodayTrip.VHItem viewHolder, final int position) {
viewHolder.setIsRecyclable(false);
try {
personaldata = dataMembers.get(position);
if (!KPHashmapUtils.m_ride_route_details_up.get(position).getKidpool_route_id().isEmpty() && !KPHashmapUtils.m_ride_route_details_up.get(position).getKidpool_route_id().equals("null")) {
viewHolder.tv_trip_id.setText("#" + KPHashmapUtils.m_ride_route_details_up.get(position).getKidpool_route_id());
}
****///////inflate the child list here and onclick on the image below in the inflated view it will load the image in the main view****
if (personaldata.getKidlist().size() > 0) {
viewHolder.linear_childview.setVisibility(View.VISIBLE);
viewHolder.tv_total_count.setText(""+personaldata.getKidlist().size());
viewHolder.id_gallery.removeAllViews();
LinearLayout.LayoutParams buttonLayoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
buttonLayoutParams.setMargins(0, 0, 8, 0);
LayoutInflater layoutInflater = (LayoutInflater) this.mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
for (int i = 0; i < personaldata.getKidlist().size(); i++) {
View view = layoutInflater.inflate(R.layout.view_child_list, null);
view.setLayoutParams(buttonLayoutParams);
RelativeLayout rl_txt = (RelativeLayout)view.findViewById(R.id.rl_txt);
RelativeLayout rl_img = (RelativeLayout)view.findViewById(R.id.rl_img);
TextView tv_count = (TextView)view.findViewById(R.id.tv_count);
com.app.kidpooldriver.helper.CircularTextView tv_name = (com.app.kidpooldriver.helper.CircularTextView)view.findViewById(R.id.tv_name);
final CircleImageView iv_circular = (CircleImageView)view.findViewById(R.id.iv_circular);
int count = i + 1;
String count1 = "0";
if (count <= 10) {
count1 = "0" + count;
}
tv_count.setText(String.valueOf(count1));
viewHolder.id_gallery.addView(view);
final String baseurl = img_baseurl + "" + personaldata.getKidlist().get(i).getKid_image();
**/////set the url of the small image in the tag here**
if(!baseurl.isEmpty()) {
iv_circular.setTag(baseurl);
}
if (!personaldata.getKidlist().get(i).getKid_image().isEmpty()) {
GradientDrawable bgShape = (GradientDrawable) rl_img.getBackground();
bgShape.setColor(Color.parseColor("#A6b1a7a6"));
rl_txt.setVisibility(View.GONE);
//rl_img.setVisibility(View.VISIBLE);
tv_name.setVisibility(View.GONE);
Log.d("aimg_baseurl", baseurl);
try {
Picasso.with(mContext)
.load(baseurl)
.resize(60,60)
.centerCrop()
.into(iv_circular);
iv_circular.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String url=iv_circular.getTag().toString().trim();
if(!url.isEmpty())
KPUtils.showToastShort(mContext,url);
Picasso.with(mContext)
.load(url)
.resize(60,60)
.centerCrop()
.into(viewHolder.img_child);
}
});
} catch (Exception e) {
}
} else {
}
}
}else{
viewHolder.linear_childview.setVisibility(View.GONE);
}
} catch (Exception e) {
e.printStackTrace();
}
}
class VHItem extends RecyclerView.ViewHolder {
CardView cv_members;
ImageView img_child;
TextView tv_trip_id, tv_trip_status, tv_vehicle_number, tv_trip_start_time, tv_trip_end_time, tv_trip_way, tv_total_count;
LinearLayout id_gallery,linear_childview;
public VHItem(View itemView) {
super(itemView);
img_child= (ImageView) itemView.findViewById(R.id.img_child);
cv_members = (CardView) itemView.findViewById(R.id.cv_members);
tv_trip_id = (TextView) itemView.findViewById(R.id.tv_trip_id);
tv_trip_status = (TextView) itemView.findViewById(R.id.tv_trip_status);
tv_vehicle_number = (TextView) itemView.findViewById(R.id.tv_vehicle_number);
tv_trip_start_time = (TextView) itemView.findViewById(R.id.tv_trip_start_time);
tv_trip_end_time = (TextView) itemView.findViewById(R.id.tv_trip_end_time);
tv_trip_way = (TextView) itemView.findViewById(R.id.tv_trip_way);
tv_total_count = (TextView) itemView.findViewById(R.id.tv_total_count);
id_gallery = (LinearLayout) itemView.findViewById(R.id.id_gallery);
linear_childview= (LinearLayout) itemView.findViewById(R.id.linear_childview);
}
}
}
/////////////////////////// this layout is inflated in every row
view_child_list
<?xml version="1.0" encoding="utf-8"?>
<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="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<de.hdodenhof.circleimageview.CircleImageView
android:id="#+id/iv_circular"
android:layout_width="60dp"
android:layout_height="60dp"
android:src="#mipmap/ic_launcher"
app:civ_border_color="#d27959"
app:civ_border_width="1dp" />
<RelativeLayout
android:id="#+id/rl_txt"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_gravity="center"
android:background="#drawable/gy_ring_circular"
android:gravity="center"
android:visibility="gone">
<com.app.kidpooldriver.helper.CircularTextView
android:id="#+id/tv_name"
fontPath="fonts/Poppins-Bold.ttf"
android:layout_width="70dp"
android:layout_height="70dp"
android:gravity="center"
android:text="01"
android:textColor="#color/white"
android:textSize="35sp"
tools:ignore="MissingPrefix" />
</RelativeLayout>
<RelativeLayout
android:id="#+id/rl_img"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_gravity="center"
android:background="#drawable/gy_ring_circular"
android:gravity="center"
android:visibility="visible">
<TextView
android:id="#+id/tv_count"
fontPath="fonts/Poppins-Bold.ttf"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:text="01"
android:textAppearance="#style/Base.TextAppearance.AppCompat.Medium"
android:textColor="#ffffff"
android:textStyle="bold"
tools:ignore="MissingPrefix" />
</RelativeLayout>
</FrameLayout>
///// this is the mianlayout which is inflated.
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/cv_members"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="#dimen/card_margin"
android:elevation="#dimen/elevation"
card_view:cardCornerRadius="5dp">
<LinearLayout
android:id="#+id/main_body"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/white"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:visibility="gone"
android:layout_marginTop="#dimen/fifteen"
android:orientation="horizontal"
android:paddingLeft="#dimen/ten">
<TextView
android:id="#+id/tv_trip_id"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#KD09201701"
android:textColor="#color/colorPrimary"
android:textSize="#dimen/twenty"
android:textStyle="bold" />
<TextView
android:id="#+id/tv_trip_status"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#color/light_green"
android:gravity="center"
android:padding="5dp"
android:text="In Progress"
android:textAppearance="#style/TextAppearance.AppCompat.Small"
android:textColor="#color/black" />
</LinearLayout>
<TextView
android:id="#+id/tv_vehicle_number"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="20dp"
android:text="Route 26U-26D"
android:visibility="gone"
android:textAppearance="#style/TextAppearance.AppCompat.Small"
android:textColor="#color/route_textcolor" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone"
android:orientation="horizontal">
<TextView
android:id="#+id/tv_trip_start_time"
android:layout_width="match_parent"
android:visibility="gone"
android:layout_height="match_parent"
android:layout_marginTop="#dimen/five"
android:paddingLeft="20dp"
android:text="06:30am"
android:textAppearance="#style/TextAppearance.AppCompat.Medium"
android:textColor="#color/grey_textcolor" />
<TextView
android:id="#+id/tv_trip_end_time"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="#dimen/five"
android:paddingLeft="20dp"
android:text="08:30am"
android:textAppearance="#style/TextAppearance.AppCompat.Medium"
android:textColor="#color/grey_textcolor"
android:visibility="gone" />
</LinearLayout>
<TextView
android:id="#+id/tv_trip_way"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="#dimen/five"
android:paddingLeft="20dp"
android:visibility="gone"
android:paddingRight="20dp"
android:text="Chingrighata > NiccoPark > SDF > College More > DLF 1 > Eco Space"
android:textAppearance="#style/TextAppearance.AppCompat.Small"
android:textColor="#color/grey_textcolor"
android:textStyle="normal" />
<ImageView
android:id="#+id/img_child"
android:layout_width="200dp"
android:layout_gravity="center"
android:layout_height="200dp" />
<LinearLayout
android:id="#+id/linear_childview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="#dimen/fifteen"
android:orientation="horizontal">
<HorizontalScrollView
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_gravity="center_vertical"
android:layout_weight="1"
android:scrollbars="none">
<LinearLayout
android:id="#+id/id_gallery"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:orientation="horizontal" />
</HorizontalScrollView>
<LinearLayout
android:layout_width="70dp"
android:layout_height="70dp"
android:background="#drawable/ly_ring_circular"
android:gravity="center_vertical">
<TextView
android:id="#+id/tv_total_count"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
tools:ignore="MissingPrefix"
fontPath="fonts/Poppins-Bold.ttf"
android:text="+20"
android:textAppearance="#style/TextAppearance.AppCompat.Medium"
android:textColor="#color/white"
android:textStyle="bold" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
</android.support.v7.widget.CardView>
/////POJO CLASS &json parsing & Adapter /////
public class ModelRouteDetailsUp {
String city_id;
String area_name;
String area_status;
String is_active;
String areas;
private ArrayList<ModelKidDetailsUp> kidlist;
///////this is the kid list
public ArrayList<ModelKidDetailsUp> getKidlist() {
return kidlist;
}
public void setKidlist(ArrayList<ModelKidDetailsUp> kidlist) {
this.kidlist = kidlist;
}
}
**///json parsing.......**
public boolean addRideDetails(JSONObject jsonObject) {
Boolean flag = false;
String isstatus = "";
if (jsonObject != null && jsonObject.length() > 0) {
try {
JSONArray mainArray = jsonObject.getJSONArray("schedules");
for (int i = 0; i < mainArray.length(); i++) {
ModelRouteDetailsUp modelRouteDetails = new ModelRouteDetailsUp();
JSONObject c = mainArray.getJSONObject(i);
////// For Route Details //////
JSONObject route_details = c.getJSONObject("route_details");
modelRouteDetails.setDs_id(route_details.optString("ds_id"));
modelRouteDetails.setDriver_id(route_details.optString("driver_id"));
modelRouteDetails.setTrip_id(route_details.optString("trip_id"));
modelRouteDetails.setRoute_id(route_details.optString("route_id"));
modelRouteDetails.setVehicle_id(route_details.optString("vehicle_id"));
modelRouteDetails.setStart_time(route_details.optString("start_time"));
modelRouteDetails.setEnd_time(route_details.optString("end_time"));
////// For Allotted Kids //////
JSONArray kidArray = c.getJSONArray("alloted_kids");
ArrayList<ModelKidDetailsUp> genre = new ArrayList<ModelKidDetailsUp>();
if (kidArray.length() > 0) {
for (int j = 0; j < kidArray.length(); j++) {
ModelKidDetailsUp kidDetailsUp = new ModelKidDetailsUp();
JSONObject kidObject = kidArray.getJSONObject(j);
kidDetailsUp.setKid_name(kidObject.getString("kid_name"));
kidDetailsUp.setKid_gender(kidObject.getString("kid_gender"));
kidDetailsUp.setKid_dob(kidObject.getString("kid_dob"));
kidDetailsUp.setKid_image(kidObject.getString("kid_image"));
genre.add(kidDetailsUp);
}
}
///////add the kidlist here
modelRouteDetails.setKidlist(genre);
////main array contains all the data i.e route details and kidlist for every row
KPHashmapUtils.m_ride_route_details_up.add(modelRouteDetails);
//}
}
} catch (Exception e) {
e.printStackTrace();
}
}
return flag;
}
**/////adapter callfrom class**
private void showData() {
if (KPHashmapUtils.m_ride_route_details_up.size() > 0){
adapterTodayTrip = new AdapterTodayTrip(mContext, R.layout.list_item_todaytrip, KPHashmapUtils.m_ride_route_details_up, "TodayTrip",img_baseurl);
rv_trip_list.setAdapter(adapterTodayTrip);
}else {
tv_msg.setVisibility(View.VISIBLE);
}
}

Generally, the solution is to pass custom interface listener into the nested adapter and than the nested adapter will report any time one of his item clicked.
1.
You can create interface like:
public interface INestedClicked {
onNestedItemClicked(Drawable drawble)
}
2.
Pass in the constructor of SectionListDataAdapter a INestedClicked:
SectionListDataAdapter itemListDataAdapter = newSectionListDataAdapter(mContext, singleSectionItems, new INestedClicked() {
#Override
void onNestedItemClicked(Drawable drawble) {
// Do whatever you need after the click, you get the drawable here
}
});
In the constructor of SectionListDataAdapter save the instance of the listener as adapter parameter
private INestedClicked listener;
4.
When nested item clicked report the listener:
view.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(listener != null){
listener.onNestedItemClicked(imageView.getDrawable());
}
}

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);

I am attaching a image to a recycler view which is being downloaded from server, but recycler view is not showing any image

The recycler view is showing other details in activity, except the image. I am loading an image through AsyncTask in getImage(). What am I doing wrong?
Here's my code:
MainActivity.java
int i;
Bitmap bitmap,imageOfPoday;
RecyclerView rvPoday;
ProductAdapter adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.app_bar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayShowHomeEnabled(true);
NavigationDrawerFragment drawerFragment = (NavigationDrawerFragment)getSupportFragmentManager().findFragmentById(R.id.fragment_navigation_drawer);
drawerFragment.setUp(R.id.fragment_navigation_drawer, (DrawerLayout) findViewById(R.id.drawer_layout), toolbar);
pd = ProgressDialog.show(MainActivity.this, "Please Wait...", null, true, true);
callPoday(PODAY_URL);
}
public List<Product> getDataPoday() {
List<Product> data=new ArrayList<>();
for(i = 0; i < parsedPODAY_ID.size(); i++) {
Product current=new Product();
current.productName=parsedPODAY_NAME.get(i);
current.price=parsedPODAY_OFFPRICE.get(i);
current.pImage=getImage("http://www.tontosworld.com/img/productimages/" + parsedPODAY_P_IMG.get(i));
Toast.makeText(this,current.pImage+"",Toast.LENGTH_LONG).show();
data.add(current);
}
return data;
}
public Bitmap getImage(String s) {
LoadImageTask task=new LoadImageTask();
task.execute(s);
return imageOfPoday;
}
class LoadImageTask extends AsyncTask<String,String,Bitmap> {
#Override
protected Bitmap doInBackground(String... strings) {
try {
bitmap = BitmapFactory.decodeStream((InputStream) new URL(strings[0]).getContent());
} catch (IOException e) {
e.printStackTrace();
}
return bitmap;
}
#Override
protected void onPostExecute(Bitmap b) {
super.onPostExecute(b);
if(b == null) {
Toast.makeText(MainActivity.this,"Error in loading image",Toast.LENGTH_LONG).show();
}
else {
imageOfPoday=b;
Toast.makeText(MainActivity.this,"This is for image"+imageOfPoday,Toast.LENGTH_LONG).show();
}
}
}
ProductAdapter.java
public class ProductAdapter extends RecyclerView.Adapter<ProductAdapter.MyViewHolder> {
public LayoutInflater inflater;
List<Product> data= Collections.emptyList();
public ProductAdapter(Context context,List<Product> data){
inflater = LayoutInflater.from(context);
this.data = data;
}
#Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = inflater.inflate(R.layout.recycler_view_single,parent,false);
MyViewHolder holder = new MyViewHolder(v);
return holder;
}
#Override
public void onBindViewHolder(MyViewHolder holder, int position) {
Product current = data.get(position);
holder.name.setText(current.productName);
holder.price.setText(current.price);
holder.image.setImageBitmap(current.pImage);
}
#Override
public int getItemCount() {
return data.size();
}
class MyViewHolder extends RecyclerView.ViewHolder {
TextView name,price;
ImageView image;
public MyViewHolder(View itemView) {
super(itemView);
name = (TextView)itemView.findViewById(R.id.rvItemName);
price = (TextView)itemView.findViewById(R.id.rvItemPrice);
image = (ImageView)itemView.findViewById(R.id.rvItemImage);
}
}
}
Product.java
public class Product {
String productName, price;
Bitmap pImage;
}
recycler_view_single.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<android.support.v7.widget.CardView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="?android:selectableItemBackground">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:orientation="vertical">
<ImageView
android:id="#+id/rvItemImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:src="#mipmap/ic_launcher" />
<TextView
android:id="#+id/rvItemName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Name" />
<TextView
android:id="#+id/rvItemPrice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Price" />
</LinearLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
activity_main.xml
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/drawer_layout">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:orientation="vertical">
<include
android:id="#+id/app_bar"
layout="#layout/app_bar"
android:layout_height="wrap_content"
android:layout_width="match_parent"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Product of the day"
android:textSize="25sp"
android:layout_marginLeft="10dp"
android:layout_marginTop="10dp"
android:textColor="#000"/>
<android.support.v7.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/rvProductOfTheDay">
</android.support.v7.widget.RecyclerView>
</LinearLayout>
<fragment
android:id="#+id/fragment_navigation_drawer"
android:layout_width="280dp"
android:layout_height="match_parent"
android:layout_gravity="start"
app:layout="#layout/fragment_navigation_drawer"
android:name="com.tontosworld.tontosworld.NavigationDrawerFragment">
</fragment>
</android.support.v4.widget.DrawerLayout>
Thanks for your help.

You are missing the update notice for your adapter (which displays the data).
Everytime you update your List, you need to call
adapter.notifyDataSetChanged();
//if you only change one item, and use recyclerview, call:
adapter.notifyItemChanged();