how to use getItematposition() in recyclerview adapter as ListView

how to use getItematposition() in recyclerview adapter as ListView - java

I have a RecyclerViewAdapter which fill my List with StoreName,image etc, I had model for listitems.ok, I'm migrating from a ListView to recylerview. i want to click on any item and get that items data(like Store name) and intent to another activity, now problem is that when i click on item it give wrong storename. but when i was using onItemclickListener that provide correct input. i will show u..
This my RecyclerViewAdapter.
public class MyRecyclerViewAdapter extends RecyclerView.Adapter<MyRecyclerViewAdapter.DataObjectHolder> {
private static String LOG_TAG = "MyRecyclerViewAdapter";
private List<StoresItem> mDataset;
private static MyClickListener myClickListener;
Context context;
Bitmap xx;
public MyRecyclerViewAdapter(Context context, List<StoresItem> myDataset)
{
mDataset = myDataset;
}
public static class DataObjectHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
TextView txtStoreName,txtDeliveryTime;
ImageView storeImg;
RatingBar ratingBar;
public DataObjectHolder(View itemView)
{
super(itemView);
txtStoreName = (TextView) itemView.findViewById(R.id.txtStoreName);
txtDeliveryTime = (TextView) itemView.findViewById(R.id.txtDeliveryTime);
storeImg = (ImageView) itemView.findViewById(R.id.storeImg);
ratingBar=(RatingBar)itemView.findViewById(R.id.ratingBar);
Log.i(LOG_TAG, "Adding Listener");
itemView.setOnClickListener(this);
}
#Override
public void onClick(View v)
{
myClickListener.onItemClick(getLayoutPosition(), v);
}
}
public void setOnItemClickListener(MyClickListener myClickListener)
{
this.myClickListener = myClickListener;
}
#Override
public DataObjectHolder onCreateViewHolder(ViewGroup parent, int viewType)
{
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.storelist, parent, false);
DataObjectHolder dataObjectHolder = new DataObjectHolder(view);
return dataObjectHolder;
}
#Override
public void onBindViewHolder(DataObjectHolder holder, int position)
{
ImageView storeImg;
holder.txtStoreName.setText(mDataset.get(position).gettxtStoreName().toString());
holder.txtDeliveryTime.setText(mDataset.get(position).gettxtDeliveryTime().toString());
holder.ratingBar.setFocusable(false);
int loader = R.drawable.image;
String url = mDataset.get(position).getstoreImg().toString();
ImageLoader imgLoader = new ImageLoader(context);
imgLoader.DisplayImage(url,loader,holder.storeImg);
}
public void addItem(StoresItem dataObj, int index) {
mDataset.add(dataObj);
notifyItemInserted(index);
}
public void deleteItem(int index) {
mDataset.remove(index);
notifyItemRemoved(index);
}
#Override
public int getItemCount() {
return mDataset.size();
}
public interface MyClickListener
{
public void onItemClick(int position, View v);
}
public Object getItem(int position)
{
return mDataset.get(position);
}
#Override
public long getItemId(int position)
{
return mDataset.indexOf(getItem(position));
}
#Override
public int getItemViewType(int position)
{
return super.getItemViewType(position);
}
}
This is my StoreModel.
public class StoresItem
{
private String txtStoreName, txtDeliveryTime, storeImg;
public StoresItem(String txtStoreName, String txtDeliveryTime,String storeImg)
{
this.txtStoreName = txtStoreName;
this.txtDeliveryTime = txtDeliveryTime;
this.storeImg = storeImg;
}
public String gettxtStoreName()
{
return txtStoreName;
}
public void settxtStoreName(String txtStoreName)
{
this.txtStoreName = txtStoreName;
}
public String gettxtDeliveryTime()
{
return txtDeliveryTime;
}
public void settxtDeliveryTime(String txtDeliveryTime)
{
this.txtDeliveryTime = txtDeliveryTime;
}
public String getstoreImg()
{
return storeImg;
}
public void setstoreImg(String storeImg)
{
this.storeImg = storeImg;
}
}
And this is my Fragment where i using onclickListner.
public class RecylerFragment extends Fragment
{
ListView storeListView;
List<StoresItem> storesItem;
StoresListAdaptor adapter;
String selectedStore;
private RecyclerView mRecyclerView;
private RecyclerView.Adapter mAdapter;
private RecyclerView.LayoutManager mLayoutManager;
public static final String[] storeNameGrocery = new String[]
{
"Value Store", "Grocery Mart", "Wild Water-Sadar Bazar", "Store99","Coco-Buzz", "Wild Water - Sector 46"
};
public static final String[] storeNameFresh = new String[]
{
"Mother's Love", "The Flower Shop", "Flower N Emotions"
};
public static final String[] storeNameElectronics = new String[]
{
"Molife-Sheetla Mata Road", "Apple Store- Shona Road", "Vandana Communication", "Samsung Store","JMD Mobile - Sector 14", "Sterling - Gurgaon"
};
public static final String[] storeNameVegetable = new String[]
{
"Fortune Store", "Best Food - Mega Mall", "Sadar Bazar", "MTR Store","Coco-Buzz"
};
public static final String[] deliveryTime = new String[]
{
"20min", "10min", "9min", "15min","30min", "1hr","20min","20min", "10min", "9min", "15min","30min", "1hr","20min" };
private static final String KEY_POSITION="position";
public static final String[] iconsUrl = new String[]
{
"http://icons.iconarchive.com/icons/femfoyou/angry-birds/96/angry-bird-icon.png",
"http://icons.iconarchive.com/icons/rokey/the-blacy/96/grimace-icon.png",
"http://wcdn1.dataknet.com/static/resources/icons/set106/fec007de.png",
"http://cdn4.aptoide.com/imgs/7/6/e/76e0376928b8393227a150fbed5d6b4a_icon_96x96.png",
"http://vaivocabulary.com/vai/images/android.png",
"http://cdn4.aptoide.com/imgs/7/6/e/76e0376928b8393227a150fbed5d6b4a_icon_96x96.png",
"http://vaivocabulary.com/vai/images/android.png",
"http://wcdn1.dataknet.com/static/resources/icons/set106/fec007de.png",
};
public RecylerFragment() {
// Required empty public constructor
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
View rootView = inflater.inflate(R.layout.activity_recycler_view, container, false);
Bundle bundle = this.getArguments();
String myString = bundle.getString("page_position");
mRecyclerView = (RecyclerView) rootView.findViewById(R.id.my_recycler_view);
mRecyclerView.setHasFixedSize(true);
mLayoutManager = new LinearLayoutManager(getActivity());
mRecyclerView.setLayoutManager(mLayoutManager);
RecyclerView.ItemDecoration itemDecoration = new DividerItemDecoration(getActivity(), LinearLayoutManager.VERTICAL);
mRecyclerView.addItemDecoration(itemDecoration);
// Code to Add an item with default animation
//((MyRecyclerViewAdapter) mAdapter).addItem(obj, index);
// Code to remove an item with default animation
//((MyRecyclerViewAdapter) mAdapter).deleteItem(index);
storesItem = new ArrayList<StoresItem>();
if(myString.equals("999")) {
for (int i = 0; i < storeNameGrocery.length; i++) {
StoresItem item = new StoresItem(storeNameGrocery[i], "Delivery Time " + deliveryTime[i],iconsUrl[i]);
storesItem.add(item);
}
}
else if(myString.equals("888")) {
for (int i = 0; i < storeNameFresh.length; i++) {
StoresItem item = new StoresItem(storeNameFresh[i], "Delivery Time " + deliveryTime[i], iconsUrl[i]);
storesItem.add(item);
}
}
else if(myString.equals("777")) {
for (int i = 0; i < storeNameElectronics.length; i++) {
StoresItem item = new StoresItem(storeNameElectronics[i], "Delivery Time " + deliveryTime[i], iconsUrl[i]);
storesItem.add(item);
}
}
else if(myString.equals("666")) {
for (int i = 0; i < storeNameVegetable.length; i++) {
StoresItem item = new StoresItem(storeNameVegetable[i], "Delivery Time " + deliveryTime[i], iconsUrl[i]);
storesItem.add(item);
}
}
mAdapter = new MyRecyclerViewAdapter(getActivity(), storesItem);
mRecyclerView.setAdapter(mAdapter);
return rootView;
}
**#Override
public void onResume() {
super.onResume();
((MyRecyclerViewAdapter) mAdapter).setOnItemClickListener(new MyRecyclerViewAdapter.MyClickListener()
{
#Override
public void onItemClick(int position, View v)
{
System.out.println(" Clicked on Item " + position);
StoresItem storesItems = (StoresItem) ((MyRecyclerViewAdapter) mAdapter).getItem(position);
Bundle args = new Bundle();
Intent in = new Intent(getActivity(), ProductActivity.class);
args.putString("SelectedStoreName", storesItems.gettxtStoreName().toString());
in.putExtras(args);
startActivity(in);
}
});
}**
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
}
#Override
public void onDetach() {
super.onDetach();
}
}
okk...there is something wrong with recyclerviews-onItemclicklister because listviews - onItemCLicklistner()
provide Adapterview and i can simply get Item by using parent.getItematposition(position) like this.
storeListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
StoresItem storesItems = (StoresItem) parent.getItemAtPosition(position);
Bundle args = new Bundle();
Intent in = new Intent(getActivity(), ProductActivity.class);
args.putString("SelectedStoreName", storesItems.gettxtStoreName().toString());
in.putExtras(args);
startActivity(in);
}
});
Can Any one tell me whats the reason why getWrong StoreName.??

You are using myClickListener.onItemClick(getLayoutPosition(), v); you have to use myClickListener.onItemClick(getAdapterPosition(), v);

Related

How to save scroll state of a Recyclerview when an item is clicked?

I have an issue with Recyclerview item selection , which is set up in a fragment , the problem is each page which is created by ViewVager has its own instance of the Recyclerview so the output is that selecting Recyclerview items will reset the scroll state of the Recyclerview, so I'm looking for a solution to to save scroll state of a Recyclerview when an item is clicked.
Fragment onViewCreated
// setting RecyclerView
mEpisodesList = (CustomRecyclerView) view.findViewById(R.id.episodesLIST);
// getting episodeslist
ArrayList<PlanetModel> episodeslist = new ArrayList<>();
for (TvShowEpisode e : mEpisodes) {
episodeslist.add(new PlanetModel(e.mEpisode));
}
// Setting LinearLayoutManager
LinearLayoutManager layoutManager
= new LinearLayoutManager(mContext.getApplicationContext(), LinearLayoutManager.HORIZONTAL, false);
//mEpisodesList.setLayoutManager(new LinearLayoutManager(mContext));
mEpisodesList.setLayoutManager(layoutManager);
// Setting RecyclerView Adapter
int currentPosition = getArguments().getInt("position");
planetAdapter = new PlanetAdapter(episodeslist, currentPosition, new PlanetAdapter.OnItemClickListener() {
#Override
public void onItemClick(final int pos) {
int scrollValue = mEpisodesList.getHorizontalScrollOffset();
mCallback.sendText(pos, scrollValue);
}
});
mEpisodesList.setAdapter(planetAdapter);
int scrollValue = getArguments().getInt("scrollValue");
new Handler().postDelayed(() -> mEpisodesList.scrollBy(scrollValue, 0), 100);
activity
public class TvShowEpisodeDetails extends MizActivity implements TvShowEpisodeDetailsFragment.TextClicked {
#Override
protected int getLayoutResource() {
return R.layout.viewpager_with_toolbar_overlay;
}
#Override
public void onCreate(Bundle savedInstanceState) {
mBus = MizuuApplication.getBus();
super.onCreate(savedInstanceState);
// Set theme
setTheme(R.style.Mizuu_Theme_NoBackground);
ViewUtils.setupWindowFlagsForStatusbarOverlay(getWindow(), true);
ViewUtils.setProperToolbarSize(this, mToolbar);
mShowId = getIntent().getExtras().getString(SHOW_ID);
mSeason = getIntent().getExtras().getInt("season");
mEpisode = getIntent().getExtras().getInt("episode");
mDatabaseHelper = MizuuApplication.getTvEpisodeDbAdapter();
Cursor cursor = mDatabaseHelper.getEpisodes(mShowId);
try {
while (cursor.moveToNext()) {
mEpisodes.add(new TvShowEpisode(this, mShowId,
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_EPISODE_TITLE)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_EPISODE_PLOT)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_SEASON)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_EPISODE)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_EPISODE_AIRDATE)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_EPISODE_DIRECTOR)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_EPISODE_WRITER)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_EPISODE_GUESTSTARS)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_EPISODE_RATING)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_HAS_WATCHED)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_FAVOURITE))
));
}
} catch (Exception e) {
} finally {
cursor.close();
}
final ArrayList<PlanetModel> episodeslist = new ArrayList<>();
for (TvShowEpisode e : mEpisodes) {
episodeslist.add(new PlanetModel(e.mEpisode));
}
mShowTitle = MizuuApplication.getTvDbAdapter().getShowTitle(mShowId);
setTitle(mShowTitle);
mViewPager = (ViewPager) findViewById(R.id.awesomepager);
mViewPager.setAdapter(new TvShowEpisodeDetailsAdapter(getSupportFragmentManager()));
for (int i = 0; i < mEpisodes.size(); i++)
fragments.add(TvShowEpisodeDetailsFragment
.newInstance(mShowId, Integer.parseInt(mEpisodes.get(i).getSeason()), Integer.parseInt(mEpisodes.get(i).getEpisode()), i, mScrollValue));
mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
#Override
public void onPageSelected(int position) {
for (int i = 0; i < episodeslist.size(); i++) {
episodeslist.get(i).setPlanetSelected(false);
}
episodeslist.get(position).setPlanetSelected(true);
//notify your recycler views adaper
ViewUtils.updateToolbarBackground(TvShowEpisodeDetails.this, mToolbar, 0, mEpisodes.get(position).getTitle(), Color.TRANSPARENT);
}
});
if (savedInstanceState != null) {
mViewPager.setCurrentItem(savedInstanceState.getInt("tab", 0));
} else {
for (int i = 0; i < mEpisodes.size(); i++) {
if (mEpisodes.get(i).getSeason().equals(MizLib.addIndexZero(mSeason)) && mEpisodes.get(i).getEpisode().equals(MizLib.addIndexZero(mEpisode))) {
mViewPager.setCurrentItem(i);
SharedPreferences setPref = this.getSharedPreferences("TvShowEpisodeDetails", Context.MODE_PRIVATE);
setPref.edit().putInt("i", i).apply();
break;
}
}
}
}
private class TvShowEpisodeDetailsAdapter extends FragmentPagerAdapter {
public TvShowEpisodeDetailsAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int index) {
// return TvShowEpisodeDetailsFragment.newInstance(mShowId, Integer.parseInt(mEpisodes.get(index).getSeason()), Integer.parseInt(mEpisodes.get(index).getEpisode()));
return fragments.get(index);
}
#Override
public int getCount() {
return mEpisodes.size();
}
}
Recyclerview adapter
public class PlanetAdapter extends RecyclerView.Adapter<PlanetAdapter.PlanetViewHolder> {
public interface OnItemClickListener {
void onItemClick(int item);
}
private final ArrayList<PlanetModel> episodeslist;
private final OnItemClickListener listener;
SharedPreferences getPref = getContext().getSharedPreferences("TvShowEpisodeDetails", Context.MODE_PRIVATE);
int pos = getPref.getInt("i", 0);
int isPlanetSelected = pos;
private final int highlightedPos;
public PlanetAdapter(ArrayList<PlanetModel> episodeslist, int highlightedPosition, OnItemClickListener listener) {
this.episodeslist = episodeslist;
this.listener = listener;
this.highlightedPos = highlightedPosition;
}
#NonNull
#Override
public PlanetAdapter.PlanetViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.planet_row, parent, false);
return new PlanetViewHolder(v);
}
#Override
public void onBindViewHolder(PlanetAdapter.PlanetViewHolder vh, final int position) {
TextView tv = (TextView) vh.itemView;
PlanetModel planetModel = episodeslist.get(position);
tv.setText(planetModel.getPlanetName());
tv.setCompoundDrawablesWithIntrinsicBounds(R.drawable.bg, 0, 0, 0);
if (highlightedPos == position) {
vh.itemView.setBackgroundColor(getContext().getResources().getColor(R.color.colorPrimaryLight));
} else {
vh.itemView.setBackgroundColor(getContext().getResources().getColor(R.color.colorPrimaryDark));
}
//holder.image.setImageResource(R.drawable.planetimage);
//vh.text.setText(episodeslist.get(position).toString());
}
#Override
public int getItemCount() {
return episodeslist.size();
}
public class PlanetViewHolder extends RecyclerView.ViewHolder {
protected TextView text;
public PlanetViewHolder(View itemView) {
super(itemView);
text = (TextView) itemView.findViewById(R.id.text_id);
itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Log.d("LOG_TAG", "onClick: current item: " + highlightedPos);
final int previousItem = isPlanetSelected;
isPlanetSelected = getPosition();
SharedPreferences setPref = v.getContext().getSharedPreferences("PlanetAdapter", Context.MODE_PRIVATE);
setPref.edit().putInt("newPosition", getPosition()).apply();
listener.onItemClick(getPosition());
}
});
}
// public void bind(final PlanetModel item, final OnItemClickListener listener) {
// }
}

You can solve this by tracking the current scroll value of the RecyclerView, and whenever you hit an a ReyclerView item; add a new parameter to the listener callback with this tracked scroll value to update the new fragment that will be shown on the ViewPager.
Track the scroll value:
mEpisodesList.setOnScrollListener(new RecyclerView.OnScrollListener() {
#Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
scrollValue += dx;
}
});
Pass it as interface callback:
planetAdapter = new PlanetAdapter(episodeslist, currentPosition, new PlanetAdapter.OnItemClickListener() {
#Override
public void onItemClick(final int pos) {
mCallback.sendText(pos, scrollValue);
}
});
And update that in the list of ViewPager fragments before scrolling to the new page:
#Override
public void sendText(int position, int scrollValue) {
mScrollValue = scrollValue;
TvShowEpisodeDetailsFragment frag = fragments.get(position);
Bundle arguments = frag.getArguments();
arguments.putInt("scrollValue", scrollValue);
mViewPager.setCurrentItem(position, false);
}

try this
// save
recyclerViewState = binding.mainList.layoutManager?.onSaveInstanceState()
// restore
recyclerViewState?.let {
binding.mainList.layoutManager?.onRestoreInstanceState(it)
}

How to implement getItemViewType() for multiple layout in RecyclerView in a Movie Database app

I am creating a movie app using TMDB api, Retrofit, Gson and Glide. I have two recyclerView and two layout to inflate. But I am unable to inflate 2 layout in recyclerView adapter.
I have already implemented popular and upcoming movie list in 2 different recyclerView. But they are showing using 1 single layout. I want to inflate popular movies in one layout and upcoming movies in another layout. I can't set the condition for getItemViewType() method. How can I check for popular and upcoming movies list in getItemViewType() method and implement it on onCreateViewHolder() method of recyclerView.
MovieAdapter class:
public class MovieAdapter extends RecyclerView.Adapter<MovieAdapter.MovieViewHolder> {
private Context context;
private ArrayList<Movie> movieArrayList;
public MovieAdapter(Context context, ArrayList<Movie> movieArrayList) {
this.context = context;
this.movieArrayList = movieArrayList;
}
#NonNull
#Override
public MovieViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.movie_list_item, parent, false);
return new MovieViewHolder(view);
}
#Override
public int getItemViewType(int position) {
return super.getItemViewType(position);
}
#Override
// Set values to the list item components
public void onBindViewHolder(#NonNull MovieViewHolder holder, int position) {
holder.movieTitle.setText(movieArrayList.get(position).getOriginalTitle());
holder.rating.setText(String.valueOf(movieArrayList.get(position).getVoteAverage()));
String imagePath = "https://image.tmdb.org/t/p/w500" + movieArrayList.get(position).getPosterPath();
Glide.with(context)
.load(imagePath)
.placeholder(R.drawable.loading)
.into(holder.movieImage);
}
#Override
public int getItemCount() {
return movieArrayList == null ? 0 : movieArrayList.size();
}
public class MovieViewHolder extends RecyclerView.ViewHolder {
TextView movieTitle, rating;
ImageView movieImage;
public MovieViewHolder(#NonNull View itemView) {
super(itemView);
movieImage = itemView.findViewById(R.id.ivMovieImage);
movieTitle = itemView.findViewById(R.id.tvTitle);
rating = itemView.findViewById(R.id.tvRating);
itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
int position = getAdapterPosition();
if (position != RecyclerView.NO_POSITION) {
Movie selectedMovie = movieArrayList.get(position);
Intent intent = new Intent(context, MovieActivity.class);
intent.putExtra("movie", selectedMovie);
context.startActivity(intent);
}
}
});
}
}
}
MainActivity class:
public class MainActivity extends AppCompatActivity {
private ArrayList<Movie> popularMovie, topRatedMovie;
private RecyclerView recyclerViewPopular, recyclerViewUpcoming;
private MovieAdapter movieAdapter, upcomingAdapter;
private SwipeRefreshLayout swipeRefreshLayout;
private static ViewPager mPager;
private static int currentPage = 0;
private static int NUM_PAGES = 0;
String[] urls = new String[] {
"https://image.tmdb.org/t/p/w500/udDclJoHjfjb8Ekgsd4FDteOkCU.jpg",
"https://image.tmdb.org/t/p/w500//2bXbqYdUdNVa8VIWXVfclP2ICtT.jpg",
"https://image.tmdb.org/t/p/w500//zfE0R94v1E8cuKAerbskfD3VfUt.jpg",
"https://image.tmdb.org/t/p/w500//lcq8dVxeeOqHvvgcte707K0KVx5.jpg",
"https://image.tmdb.org/t/p/w500//w9kR8qbmQ01HwnvK4alvnQ2ca0L.jpg"
};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initSlider();
getPopularMovies();
getUpcomingMovies();
swipeRefreshLayout = findViewById(R.id.swipe_layout);
swipeRefreshLayout.setColorSchemeResources(R.color.colorPrimaryDark);
swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
#Override
public void onRefresh() {
getPopularMovies();
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
swipeRefreshLayout.setRefreshing(false);
}
}, 4000);
}
});
}
public void getPopularMovies() {
MovieDataService movieDataService = RetrofitInstance.getService();
Call<MovieDBResponse> callPopular = movieDataService.getPopularMovies(this.getString(R.string.apiKey));
callPopular.enqueue(new Callback<MovieDBResponse>() {
#Override
public void onResponse(Call<MovieDBResponse> call, Response<MovieDBResponse> response) {
MovieDBResponse movieDBResponse = response.body();
if(movieDBResponse!=null && movieDBResponse.getMovies()!=null) {
popularMovie = (ArrayList<Movie>) movieDBResponse.getMovies();
showOnRecyclerView();
}
}
#Override
public void onFailure(Call<MovieDBResponse> call, Throwable t) { }
});
}
public void getUpcomingMovies() {
MovieDataService movieDataService = RetrofitInstance.getService();
Call<MovieDBResponse> callUpcoming = movieDataService.getUpcomingMovies(this.getString(R.string.apiKey));
callUpcoming.enqueue(new Callback<MovieDBResponse>() {
#Override
public void onResponse(Call<MovieDBResponse> call, Response<MovieDBResponse> response) {
MovieDBResponse movieDBResponse = response.body();
if(movieDBResponse!=null && movieDBResponse.getMovies()!=null) {
topRatedMovie = (ArrayList<Movie>) movieDBResponse.getMovies();
showOnRecyclerView();
}
}
#Override
public void onFailure(Call<MovieDBResponse> call, Throwable t) { }
});
}
private void showOnRecyclerView() {
recyclerViewPopular = findViewById(R.id.rvMovies);
recyclerViewUpcoming = findViewById(R.id.rvTopMovies);
RecyclerView.LayoutManager popularLayoutManager = new LinearLayoutManager(this);
RecyclerView.LayoutManager upcomingLayoutManager = new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL, false);
recyclerViewUpcoming.setLayoutManager(upcomingLayoutManager);
recyclerViewPopular.setLayoutManager(popularLayoutManager);
movieAdapter = new MovieAdapter(this, popularMovie);
upcomingAdapter = new MovieAdapter(this, topRatedMovie);
if (this.getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
recyclerViewPopular.setLayoutManager(new GridLayoutManager(this, 2));
}else {
recyclerViewPopular.setLayoutManager(new GridLayoutManager(this, 4));
}
recyclerViewPopular.setItemAnimator(new DefaultItemAnimator());
recyclerViewUpcoming.setItemAnimator(new DefaultItemAnimator());
recyclerViewPopular.setAdapter(movieAdapter);
recyclerViewUpcoming.setAdapter(upcomingAdapter);
movieAdapter.notifyDataSetChanged();
upcomingAdapter.notifyDataSetChanged();
}
}
I want to inflate 2 different layout "movie_list_item.xml" and "upcoming_movie_list_item.xml" in onCreateViewHolder() method.

With in your adapter class(MovieAdapter) create a new constructor and add extra params of Int or enum whatever simple for you i am just giving you simple example:-
public class MovieAdapter extends RecyclerView.Adapter<MovieAdapter.MovieViewHolder> {
private Context context;
private ArrayList<Movie> movieArrayList;
private int viewType;
public MovieAdapter(Context context, ArrayList < Movie > movieArrayList, int viewType) {
this.context = context;
this.movieArrayList = movieArrayList;
this.viewType=viewType;
}
#NonNull
#Override
public MovieViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View view;
if (viewType == 1) {
//Popular movie layout
view = LayoutInflater.from(parent.getContext()).inflate(R.layout.movie_list_item, parent, false);
} else {
//upcoming movie layout
view = LayoutInflater.from(parent.getContext()).inflate(R.layout.movie_list_item, parent, false);
}
return new MovieViewHolder(view);
}
#Override
public int getItemViewType(int position) {
if (viewType == 1)
return 1; //Popular Movie Layout
else
return 2; //Upcoming Movie Layout
// return super.getItemViewType(position);
}
#Override
// Set values to the list item components
public void onBindViewHolder(#NonNull MovieViewHolder holder, int position) {
holder.movieTitle.setText(movieArrayList.get(position).getOriginalTitle());
holder.rating.setText(String.valueOf(movieArrayList.get(position).getVoteAverage()));
String imagePath = "https://image.tmdb.org/t/p/w500" + movieArrayList.get(position).getPosterPath();
Glide.with(context)
.load(imagePath)
.placeholder(R.drawable.loading)
.into(holder.movieImage);
}
#Override
public int getItemCount() {
return movieArrayList == null ? 0 : movieArrayList.size();
}
public class MovieViewHolder extends RecyclerView.ViewHolder {
TextView movieTitle, rating;
ImageView movieImage;
public MovieViewHolder(#NonNull View itemView) {
super(itemView);
movieImage = itemView.findViewById(R.id.ivMovieImage);
movieTitle = itemView.findViewById(R.id.tvTitle);
rating = itemView.findViewById(R.id.tvRating);
itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
int position = getAdapterPosition();
if (position != RecyclerView.NO_POSITION) {
Movie selectedMovie = movieArrayList.get(position);
Intent intent = new Intent(context, MovieActivity.class);
intent.putExtra("movie", selectedMovie);
context.startActivity(intent);
}
}
});
}
}
and within your activity change on this method only
private void showOnRecyclerView() {
recyclerViewPopular = findViewById(R.id.rvMovies);
recyclerViewUpcoming = findViewById(R.id.rvTopMovies);
RecyclerView.LayoutManager popularLayoutManager = new LinearLayoutManager(this);
RecyclerView.LayoutManager upcomingLayoutManager = new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL, false);
recyclerViewUpcoming.setLayoutManager(upcomingLayoutManager);
recyclerViewPopular.setLayoutManager(popularLayoutManager);
movieAdapter = new MovieAdapter(this, popularMovie,1);
upcomingAdapter = new MovieAdapter(this, topRatedMovie,2);
if (this.getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
recyclerViewPopular.setLayoutManager(new GridLayoutManager(this, 2));
} else {
recyclerViewPopular.setLayoutManager(new GridLayoutManager(this, 4));
}
recyclerViewPopular.setItemAnimator(new DefaultItemAnimator());
recyclerViewUpcoming.setItemAnimator(new DefaultItemAnimator());
recyclerViewPopular.setAdapter(movieAdapter);
recyclerViewUpcoming.setAdapter(upcomingAdapter);
movieAdapter.notifyDataSetChanged();
upcomingAdapter.notifyDataSetChanged();
}

Create layout for movie_empty_item
public class MovieAdapter extends RecyclerView.Adapter<MovieAdapter.MovieViewHolder> {
private Context context;
private ArrayList<Movie> movieArrayList;
//add this two line
private static final int EMPTY_VIEW_TYPE = 0;
private static final int NORMAL_VIEW_TYPE = 1;
public MovieAdapter(Context context, ArrayList<Movie> movieArrayList) {
this.context = context;
this.movieArrayList = movieArrayList;
}
#NonNull
#Override
public MovieViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
//return viewholder replace like this
if(viewType == NORMAL_VIEW_TYPE) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.movie_list_item, parent, false);
return new MovieViewHolder(view);
}else {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.movie_empty_item, parent, false);
return new EmptyViewHolder(view);
};
}
//getItemViewType return replace like this
#Override
public int getItemViewType(int position) {
return movieArrayList.size()>0?NORMAL_VIEW_TYPE:EMPTY_VIEW_TYPE;
}
#Override
// Set values to the list item components
public void onBindViewHolder(#NonNull MovieViewHolder holder, int position) {
holder.movieTitle.setText(movieArrayList.get(position).getOriginalTitle());
holder.rating.setText(String.valueOf(movieArrayList.get(position).getVoteAverage()));
String imagePath = "https://image.tmdb.org/t/p/w500" + movieArrayList.get(position).getPosterPath();
Glide.with(context)
.load(imagePath)
.placeholder(R.drawable.loading)
.into(holder.movieImage);
}
#Override
public int getItemCount() {
return movieArrayList.size() ? movieArrayList.size():1 ;
}
public class MovieViewHolder extends RecyclerView.ViewHolder {
TextView movieTitle, rating;
ImageView movieImage;
public MovieViewHolder(#NonNull View itemView) {
super(itemView);
movieImage = itemView.findViewById(R.id.ivMovieImage);
movieTitle = itemView.findViewById(R.id.tvTitle);
rating = itemView.findViewById(R.id.tvRating);
itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
int position = getAdapterPosition();
if (position != RecyclerView.NO_POSITION) {
Movie selectedMovie = movieArrayList.get(position);
Intent intent = new Intent(context, MovieActivity.class);
intent.putExtra("movie", selectedMovie);
context.startActivity(intent);
}
}
});
}
}
public class EmptyViewHolder extends RecyclerView.ViewHolder {
public EmptyViewHolder(#NonNull View itemView) {
super(itemView);
}
}
}

I want to display an image from drawable and combine it with data from json-api into recylerview

I have an application project for news media using java programming, I
want to display images for categories from drawable into recylerview
that are based on json-api, is there any one who can help me?
How I do for load image from drawable and combine it with data from json-api into RecylerView can anyone provide specific code here
this is my AdapterCategory.java
public class AdapterCategory extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private List<Category> items = new ArrayList<>();
private Context ctx;
private OnItemClickListener mOnItemClickListener;
private int c;
public interface OnItemClickListener {
void onItemClick(View view, Category obj, int position);
}
public void setOnItemClickListener(final OnItemClickListener mItemClickListener) {
this.mOnItemClickListener = mItemClickListener;
}
// Provide a suitable constructor (depends on the kind of dataset)
public AdapterCategory(Context context, List<Category> items) {
this.items = items;
ctx = context;
}
public class ViewHolder extends RecyclerView.ViewHolder {
// each data item is just a string in this case
public TextView name;
public TextView post_count;
public LinearLayout lyt_parent;
public ImageView imageView;
public ViewHolder(View v) {
super(v);
name = (TextView) v.findViewById(R.id.name);
post_count = (TextView) v.findViewById(R.id.post_count);
imageView = (ImageView)v.findViewById(R.id.image_category);
lyt_parent = (LinearLayout) v.findViewById(R.id.lyt_parent);
//imageView.setImageResource(image_array.length);
}
}
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
// create a new view
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.row_category, parent, false);
ViewHolder vh = new ViewHolder(v);
return vh;
}
// Replace the contents of a view (invoked by the layout manager)
#Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) {
if(holder instanceof ViewHolder) {
final Category c = items.get(position);
ViewHolder vItem = (ViewHolder) holder;
vItem.name.setText(Html.fromHtml(c.title));
vItem.post_count.setText(c.post_count + "");
Picasso.with(ctx).load(imageUri).into(vItem.imageView);
vItem.lyt_parent.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if (mOnItemClickListener != null) {
mOnItemClickListener.onItemClick(view, c, position);
}
}
});
}
}
public void setListData(List<Category> items){
this.items = items;
notifyDataSetChanged();
}
public void resetListData() {
this.items = new ArrayList<>();
notifyDataSetChanged();
}
// Return the size of your dataset (invoked by the layout manager)
#Override
public int getItemCount() {
return items.size();
}
}
This is my FragmentCategory.java for display data
public class FragmentCategory extends Fragment {
private View root_view, parent_view;
private RecyclerView recyclerView;
private SwipeRefreshLayout swipe_refresh;
private AdapterCategory mAdapter;
private Call<CallbackCategories> callbackCall = null;
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
root_view = inflater.inflate(R.layout.fragment_category, null);
parent_view = getActivity().findViewById(R.id.main_content);
swipe_refresh = (SwipeRefreshLayout) root_view.findViewById(R.id.swipe_refresh_layout_category);
recyclerView = (RecyclerView) root_view.findViewById(R.id.recyclerViewCategory);
recyclerView.setLayoutManager(new GridLayoutManager(getActivity(),3));
recyclerView.setHasFixedSize(true);
//set data and list adapter
mAdapter = new AdapterCategory(getActivity(), new ArrayList<Category>());
recyclerView.setAdapter(mAdapter);
// on item list clicked
mAdapter.setOnItemClickListener(new AdapterCategory.OnItemClickListener() {
#Override
public void onItemClick(View v, Category obj, int position) {
ActivityCategoryDetails.navigate((ActivityMain) getActivity(), v.findViewById(R.id.lyt_parent), obj);
}
});
// on swipe list
swipe_refresh.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
#Override
public void onRefresh() {
mAdapter.resetListData();
requestAction();
}
});
requestAction();
return root_view;
}
private void displayApiResult(final List<Category> categories) {
mAdapter.setListData(categories);
swipeProgress(false);
if (categories.size() == 0) {
showNoItemView(true);
}
}
private void requestCategoriesApi() {
API api = RestAdapter.createAPI();
callbackCall = api.getAllCategories();
callbackCall.enqueue(new Callback<CallbackCategories>() {
#Override
public void onResponse(Call<CallbackCategories> call, Response<CallbackCategories> response) {
CallbackCategories resp = response.body();
if (resp != null && resp.status.equals("ok")) {
displayApiResult(resp.categories);
} else {
onFailRequest();
}
}
#Override
public void onFailure(Call<CallbackCategories> call, Throwable t) {
if (!call.isCanceled()) onFailRequest();
}
});
}
private void onFailRequest() {
swipeProgress(false);
if (NetworkCheck.isConnect(getActivity())) {
showFailedView(true, getString(R.string.failed_text));
} else {
showFailedView(true, getString(R.string.no_internet_text));
}
}
private void requestAction() {
showFailedView(false, "");
swipeProgress(true);
showNoItemView(false);
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
requestCategoriesApi();
}
}, Constant.DELAY_TIME);
}
#Override
public void onDestroy() {
super.onDestroy();
swipeProgress(false);
if(callbackCall != null && callbackCall.isExecuted()){
callbackCall.cancel();
}
}
private void showFailedView(boolean flag, String message) {
View lyt_failed = (View) root_view.findViewById(R.id.lyt_failed_category);
((TextView) root_view.findViewById(R.id.failed_message)).setText(message);
if (flag) {
recyclerView.setVisibility(View.GONE);
lyt_failed.setVisibility(View.VISIBLE);
} else {
recyclerView.setVisibility(View.VISIBLE);
lyt_failed.setVisibility(View.GONE);
}
((Button) root_view.findViewById(R.id.failed_retry)).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
requestAction();
}
});
}
private void showNoItemView(boolean show) {
View lyt_no_item = (View) root_view.findViewById(R.id.lyt_no_item_category);
((TextView) root_view.findViewById(R.id.no_item_message)).setText(R.string.no_category);
if (show) {
recyclerView.setVisibility(View.GONE);
lyt_no_item.setVisibility(View.VISIBLE);
} else {
recyclerView.setVisibility(View.VISIBLE);
lyt_no_item.setVisibility(View.GONE);
}
}
private void swipeProgress(final boolean show) {
if (!show) {
swipe_refresh.setRefreshing(show);
return;
}
swipe_refresh.post(new Runnable() {
#Override
public void run() {
swipe_refresh.setRefreshing(show);
}
});
}
And this is my ModeCategory.java
public class Category implements Serializable {
public int id = -1;
public String slug = "";
public String type = "";
public String url = "";
public String title = "";
public String title_plain = "";
public String content = "";
public String excerpt = "";
public String date = "";
public String modified = "";
public String description = "";
public int parent = -1;
public int post_count = -1;
public Author author;
public List<Category> categories = new ArrayList<>();
public List<Comment> comments = new ArrayList<>();
public List<Attachment> attachments = new ArrayList<>();
public CategoryRealm getObjectRealm(){
CategoryRealm c = new CategoryRealm();
c.id = id;
c.url = url;
c.slug = slug;
c.title = title;
c.description = description;
c.parent = parent;
c.post_count = post_count;
return c;
}
}

JSONArray data won't show on Fragment

I'm having problems with showing JSONArray data on the Fragment. I am verified my links, Strings etc. But on the Debug console my request showing correct. I am suspecting JSONArray request but i can't find any errors.
Please, help!
D/Request::: 010-8470-0486
010-8472-0964
010-8474-2372
D/Request::: 010-8475-0089
D/Request::: 010-8475-7585
010-8478-0007
D/Request::: 010-8478-0573
010-8479-0311
010-8479-9234
D/Request::: 010-8481-2030
This is my Fragment
public class FragmentDB extends Fragment {
private View v;
private RecyclerView recyclerView;
private String url = "http://www.example.com/api.php";
private List<ModelDB> modelDBList;
public FragmentDB() {
}
#SuppressWarnings("UnnecessaryLocalVariable")
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, Bundle savedInstanceState) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (Objects.requireNonNull(getActivity()).checkSelfPermission(Manifest.permission.READ_CALL_LOG) != PackageManager.PERMISSION_GRANTED &&
getActivity().checkSelfPermission(Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED &&
getActivity().checkSelfPermission(Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED)
return v;
} else {
Intent i10 = new Intent(getActivity(), PermissionActivity.class);
startActivity(i10);
Objects.requireNonNull(getActivity()).finish();
}
v = inflater.inflate(R.layout.frag_db, container, false);
recyclerView = v.findViewById(R.id.rv_db);
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getContext());
RecyclerView.LayoutManager layoutManager = linearLayoutManager;
recyclerView.setLayoutManager(layoutManager);
DividerItemDecoration dividerItemDecoration = new DividerItemDecoration(recyclerView.getContext(), linearLayoutManager.getOrientation());
modelDBList = new ArrayList<>();
DbRvAdapter adapter = new DbRvAdapter(getContext(), modelDBList);
recyclerView.setAdapter(adapter);
adapter.notifyDataSetChanged();
recyclerView.addItemDecoration(dividerItemDecoration);
recyclerView.setHasFixedSize(true);
Objects.requireNonNull(getActivity()).getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
getDBLogs();
return v;
}
#SuppressWarnings({"LogNotTimber", "deprecation"})
private void getDBLogs() {
JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(url, new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
// Do something with the response
try {
for ( int i = 0; i < response.length(); i++) {
JSONObject obj = response.getJSONObject(i);
ModelDB dblist = new ModelDB();
dblist.setPhone_number(obj.getString("phone_number"));
dblist.setInfo1(obj.getString("info1"));
modelDBList.add(dblist);
Log.d("Request:: ", obj.getString("phone_number"));
}
} catch(JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
// Handle error
Log.e("Volley", error.toString());
}
});
RequestQueue rq = Volley.newRequestQueue(Objects.requireNonNull(getActivity()).getApplicationContext());
rq.add(jsonArrayRequest);
}
}
and ModelDB class
public class ModelDB {
public String phone_number;
public String info1;
public ModelDB() {
}
public ModelDB(String phone_number, String info1) {
this.phone_number = phone_number;
this.info1 = info1;
}
public String getPhone_number() {
return phone_number;
}
public void setPhone_number(String phone_number) {
this.phone_number = phone_number;
}
public String getInfo1() {
return info1;
}
public void setInfo1(String info1) {
this.info1 = info1;
}
}
and adapter class
public class DbRvAdapter extends RecyclerView.Adapter<DbRvAdapter.ViewHolder> {
public static final String KEY_DBPHONENUMBER = "phone_number";
public static final String KEY_DBINFO = "info1";
private Context context;
private List<ModelDB> list;
public DbRvAdapter(Context context, List<ModelDB> list) {
this.context = context;
this.list = list;
}
#NonNull
#Override
public ViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.single_db, parent, false);
return new ViewHolder(v);
}
#SuppressWarnings("RecyclerView")
#Override
public void onBindViewHolder(#NonNull ViewHolder holder, final int position) {
final ModelDB modelDB = list.get(position);
holder.textDBP.setText(modelDB.getPhone_number());
holder.textInfo1.setText(String.valueOf(modelDB.getInfo1()));
holder.relativeLayout.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
ModelDB modelDB1 = list.get(position);
Intent skipIntent = new Intent(v.getContext(), NumberActivity.class);
skipIntent.putExtra(KEY_DBINFO, modelDB1.getInfo1());
skipIntent.putExtra(KEY_DBPHONENUMBER, modelDB1.getPhone_number());
v.getContext().startActivity(skipIntent);
}
});
}
#Override
public int getItemCount() {
return list.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
public TextView textDBP, textInfo1;
public RelativeLayout relativeLayout;
public ViewHolder(View itemView) {
super(itemView);
textDBP = itemView.findViewById(R.id.tv_number);
textInfo1 = itemView.findViewById(R.id.tv_dbinfo);
}
}
}
Sorry for my bad English.

notify you adapter after the for loop body and declare the adapter globally
for ( int i = 0; i < response.length(); i++) {
............
modelDBList.add(dblist);
}
if(dblist != null and dblist.size() > 0){
adapter.notifyDataSetChanged();
}

It looks like you didn't update list of modelDB's inside adapter after the parsing of a network call result.

How To make RecyclerView handle onclicklistener [duplicate]

This question already has answers here:
RecyclerView onClick
(49 answers)
Closed 7 years ago.
Has anyone using RecyclerView found a way to set an onClickListener to items in the RecyclerView?
this my code:
Pasal_Bab.java
public class Pasal_Bab extends Fragment implements SearchView.OnQueryTextListener {
private RecyclerViewEmptySupport rv;
private List<PasalBabModel> mPBH;
private PasalBabAdapter adapter;
private static ArrayList<PasalBabModel> people;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.activity_pasal, container, false);
rv = (RecyclerViewEmptySupport) view.findViewById(R.id.rv_pasal);
LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
rv.setLayoutManager(layoutManager);
rv.setEmptyView(view.findViewById(R.id.empty));
rv.addItemDecoration(new DividerItemDecoration(getActivity(), DividerItemDecoration.VERTICAL_LIST));
return view;
}
#Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
setHasOptionsMenu(true);
String[] locales = Locale.getISOCountries();
mPBH = new ArrayList<>();
for (String countryCode : locales) {
Locale obj = new Locale("Pasalxyz", countryCode);
mPBH.add(new PasalBabModel(obj.getDisplayCountry(), obj.getISO3Country()));
}
adapter = new PasalBabAdapter(mPBH);
rv.setAdapter(adapter);
}
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.menu_main, menu);
final MenuItem item = menu.findItem(R.id.action_search);
final SearchView searchView = (SearchView) MenuItemCompat.getActionView(item);
searchView.setOnQueryTextListener(this);
MenuItemCompat.setOnActionExpandListener(item,
new MenuItemCompat.OnActionExpandListener() {
#Override
public boolean onMenuItemActionCollapse(MenuItem item) {
// Do something when collapsed
adapter.setFilter(mPBH);
return true; // Return true to collapse action view
}
#Override
public boolean onMenuItemActionExpand(MenuItem item) {
// Do something when expanded
return true; // Return true to expand action view
}
});
}
#Override
public boolean onQueryTextSubmit(String query) {
return false;
}
#Override
public boolean onQueryTextChange(String newText) {
final List<PasalBabModel> filteredModelList = filter(mPBH, newText);
adapter.animateTo(filteredModelList);
adapter.setFilter(filteredModelList);
rv.scrollToPosition(0);
return false;
}
private List<PasalBabModel> filter(List<PasalBabModel> models, String query) {
query = query.toLowerCase();
final List<PasalBabModel> filteredModelList = new ArrayList<>();
for (PasalBabModel model : models) {
final String text = model.getpasalbab_p().toLowerCase();
if (text.contains(query)) {
filteredModelList.add(model);
}
}
return filteredModelList;
}
}
PasalBabAdapter.java
public class PasalBabAdapter extends RecyclerView.Adapter<PasalBabVH> {
private List<PasalBabModel> mPasalBabModel;
public PasalBabAdapter(List<PasalBabModel> mPasalBabModel) {
this.mPasalBabModel = mPasalBabModel;
}
#Override
public void onBindViewHolder(PasalBabVH PasalBabVH, int i) {
final PasalBabModel model = mPasalBabModel.get(i);
PasalBabVH.bind(model);
}
#Override
public PasalBabVH onCreateViewHolder(ViewGroup viewGroup, int i) {
View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.pasalbab_row, viewGroup, false);
return new PasalBabVH(view);
}
public void setFilter(List<PasalBabModel> PasalBabModels) {
mPasalBabModel = new ArrayList<>();
mPasalBabModel.addAll(PasalBabModels);
notifyDataSetChanged();
}
#Override
public int getItemCount() {
return mPasalBabModel.size();
}
public void animateTo(List<PasalBabModel> models) {
applyAndAnimateRemovals(models);
applyAndAnimateAdditions(models);
applyAndAnimateMovedItems(models);
}
private void applyAndAnimateRemovals(List<PasalBabModel> newModels) {
for (int i = mPasalBabModel.size() - 1; i >= 0; i--) {
final PasalBabModel model = mPasalBabModel.get(i);
if (!newModels.contains(model)) {
removeItem(i);
}
}
}
private void applyAndAnimateAdditions(List<PasalBabModel> newModels) {
for (int i = 0, count = newModels.size(); i < count; i++) {
final PasalBabModel model = newModels.get(i);
if (!mPasalBabModel.contains(model)) {
addItem(i, model);
}
}
}
private void applyAndAnimateMovedItems(List<PasalBabModel> newModels) {
for (int toPosition = newModels.size() - 1; toPosition >= 0; toPosition--) {
final PasalBabModel model = newModels.get(toPosition);
final int fromPosition = mPasalBabModel.indexOf(model);
if (fromPosition >= 0 && fromPosition != toPosition) {
moveItem(fromPosition, toPosition);
}
}
}
public PasalBabModel removeItem(int position) {
final PasalBabModel model = mPasalBabModel.remove(position);
notifyItemRemoved(position);
return model;
}
public void addItem(int position, PasalBabModel model) {
mPasalBabModel.add(position, model);
notifyItemInserted(position);
}
public void moveItem(int fromPosition, int toPosition) {
final PasalBabModel model = mPasalBabModel.remove(fromPosition);
mPasalBabModel.add(toPosition, model);
notifyItemMoved(fromPosition, toPosition);
}
}
PasalBabVH.java
public class PasalBabVH extends RecyclerView.ViewHolder {
public TextView p_TextView;
public TextView b_TextView;
public PasalBabVH(View itemView) {
super(itemView);
p_TextView = (TextView) itemView.findViewById(R.id.uud_pasal);
b_TextView = (TextView) itemView.findViewById(R.id.uud_bab);
}
public void bind(PasalBabModel mx) {
p_TextView.setText(mx.getpasalbab_p());
b_TextView.setText(mx.getpasalbab_b());
}
}
PasalBabModel.java
public class PasalBabModel {
String pasalbab_p;
String pasalbab_b;
public PasalBabModel(String pasalbab_p, String pasalbab_b) {
this.pasalbab_p = pasalbab_p;
this.pasalbab_b = pasalbab_b;
}
public String getpasalbab_p() {
return pasalbab_p;
}
public String getpasalbab_b() {
return pasalbab_b;
}
}
please helpme...i'm a beginner :)

Create the adapter like so:
public class CustomAdapter extends RecyclerView.Adapter<Custom.ViewHolder> {
private List<SomeObject> mDataSet;
public OnItemClickListener mItemClickListener;
private Context mContext;
public CustomAdapter(Context context, List<SomeObject> myDataset, OnItemClickListener mItemClickListener) {
this.mDataSet = myDataset;
this.mItemClickListener = mItemClickListener;
this.mContext = context;
}
public void updateData(List<SomeObject> mDataSet) {
this.mDataSet = mDataSet;
notifyDataSetChanged();
}
public void removeItem(int position) {
mDataSet.remove(position);
notifyItemRemoved(position);
}
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
// create a new view
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item, parent, false);
return new ViewHolder(v);
}
#Override
public void onBindViewHolder(final ViewHolder holder, int position) {
// - get element from your dataset at this position
// - replace the contents of the view with that element
final SomeObject obj = mDataSet.get(position);
holder.name.setText(obj.getName());
}
#Override
public int getItemCount() {
return mDataSet.size();
}
public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener, View.OnLongClickListener {
TextView name;
public ViewHolder(View v) {
super(v);
name = (TextView) v.findViewById(R.id.naam);
v.setOnClickListener(this);
v.setOnLongClickListener(this);
}
#Override
public void onClick(View v) {
// If not long clicked, pass last variable as false.
mItemClickListener.onItemClick(v, getLayoutPosition(), false, mDataSet);
}
#Override
public boolean onLongClick(View v) {
// If long clicked, passed last variable as true.
mItemClickListener.onItemClick(v, getLayoutPosition(), true, mDataSet);
return true;
}
}
public interface OnItemClickListener {
void onItemClick(View view, int position, boolean isLongClick, List<SomeObject> mFilteredList);
}
}
And set the adapter like this:
mAdapter = new CustomAdapter(getActivity(), dataSet, new CustomAdapter.OnItemClickListener() {
#Override
public void onItemClick(View v, int position, boolean isLongClick, List<SomeObject> mDataSet) {
if (isLongClick) {
//Long click
SomeObject obj = mDataSet.get(position);
} else {
//Normal click
SomeObject obj = mDataSet.get(position);
}
}
});

Use interfaces to handle onClicks.
Put this in the adapter:
public interface OnItemClickListener {
void onClickItem(View view, int position);
}
public void SetOnItemClickListener(OnItemClickListener mItemClickListener) {
this.mItemClickListener = mItemClickListener;
}
and then in view holder do this:
public class PasalBabVH extends RecyclerView.ViewHolder {
public TextView p_TextView;
public TextView b_TextView;
public PasalBabVH(View itemView) {
super(itemView);
p_TextView = (TextView) itemView.findViewById(R.id.uud_pasal);
b_TextView = (TextView) itemView.findViewById(R.id.uud_bab);
p_TextView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (mItemClickListener != null) {
}
}
});
b_TextView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (mItemClickListener != null) {
}
}
});
}
public void bind(PasalBabModel mx) {
p_TextView.setText(mx.getpasalbab_p());
b_TextView.setText(mx.getpasalbab_b());
}
}
In fragment do this:
adapter.SetOnItemClickListener(new PasalBabAdapter.OnItemClickListener() {
#Override
public void onClickItem(View view, int position) {
}});

Develop Reference

Java is a programming language and computing platform first released by Sun Microsystems in 1995.

how to use getItematposition() in recyclerview adapter as ListView - java

You are using myClickListener.onItemClick(getLayoutPosition(), v); you have to use myClickListener.onItemClick(getAdapterPosition(), v);

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