How can I implement an Activity with page_ two? What can I do?
Here's an example:
So far, my activity code looks like this:
ViewPager viewPager = (ViewPager) findViewById(R.id.viewpager);
viewPager.setAdapter(new CustomPagerAdapter(this));
CustomPagerAdapter.java
public class CustomPagerAdapter extends PagerAdapter {
private Context mContext;
public CustomPagerAdapter(Context context) {
mContext = context;
}
#Override
public Object instantiateItem(ViewGroup collection, int position) {
ModelObject modelObject = ModelObject.values()[position];
LayoutInflater inflater = LayoutInflater.from(mContext);
ViewGroup layout = (ViewGroup) inflater.inflate(modelObject.getLayoutResId(), collection, false);
collection.addView(layout);
return layout;
}
#Override
public void destroyItem(ViewGroup collection, int position, Object view) {
collection.removeView((View) view);
}
#Override
public int getCount() {
return ModelObject.values().length;
}
#Override
public boolean isViewFromObject(View view, Object object) {
return view == object;
}
#Override
public CharSequence getPageTitle(int position) {
ModelObject customPagerEnum = ModelObject.values()[position];
return mContext.getString(customPagerEnum.getTitleResId());
}
}
And ModelObject.java
public enum ModelObject {
BLUE(R.string.blue, R.layout.page_one),
GREEN(R.string.green, R.layout.page_two),
RED(R.string.blue, R.layout.page_tree);
private int mTitleResId;
private int mLayoutResId;
ModelObject(int titleResId, int layoutResId) {
mTitleResId = titleResId;
mLayoutResId = layoutResId;
}
public int getTitleResId() {
return mTitleResId;
}
public int getLayoutResId() {
return mLayoutResId;
}
}
How can I solve this ?
I changed list but I didn't;
So how ?
Related
I have a view pager with an adapter that has a number of items fetched from the cloud. I add the pages to the adapter through the fragment.
I am trying to pass a variable to the Item's view model every time a new page is instantiated from the adapter so as to notify one of the views that depend on this view model. I have tried a few workarounds but nothing has been successful so far. Would anyone please advice how I may pass this data.
Below is my adapter
public class HelpPagerAdapter extends PagerAdapter {
private final List<HelpPage> mHelpPages;
private int currentPage = 0;
public HelpPagerAdapter(Context context) {
mPages = new ArrayList<>();
}
#Override
public int getCount() {
return mHelpPages.size();
}
#Override
public boolean isViewFromObject(View view, Object object) {
return view == object;
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((View) object);
}
#Override
public Object instantiateItem(ViewGroup container, int position) {
HelpPage helpPage = mHelpPages.get(position);
currentPage = position;
LayoutInflater inflater = (LayoutInflater) container.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
ViewDataBinding binding = DataBindingUtil.inflate(inflater, helpPage.getLayout(), container, false);
binding.setVariable(helpPage.getViewModelBindingId(), helpPage.getViewModel());
container.addView(binding.getRoot());
return binding.getRoot();
}
public void addPage(#LayoutRes int layout, Object viewModel, int viewModelBindingId) {
mHelpPages.add(new HelpPage(layout, viewModel, viewModelBindingId));
}
private class HelpPage {
private final #LayoutRes int mLayout;
private final Object mViewModel;
private final int mViewModelBindingId;
HelpPage(#LayoutRes int layout, Object viewModel, int viewModelBindingId) {
mLayout = layout;
mViewModel = viewModel;
mViewModelBindingId = viewModelBindingId;
}
#LayoutRes int getLayout() {
return mLayout;
}
Object getViewModel() {
return mViewModel;
}
int getViewModelBindingId() {
return mViewModelBindingId;
}
}
}
Part of my fragment code
#Override
public void onAttach(Context context) {
super.onAttach(context);
Bundle bundle = getArguments();
if (bundle == null || (!bundle.containsKey(ARG_STEPS) && !bundle.containsKey(ARG_VIEWS))) {
throw new IllegalStateException("HelpFragment cannot be initialised without views");
}
HelpPagerAdapter adapter = new HelpPagerAdapter(getContext());
if (bundle.containsKey(ARG_STEPS)) {
List<Step> steps = Parcels.unwrap(bundle.getParcelable(ARG_STEPS));
adapter = addHelpPages(steps, adapter);
}
mHelpViewModel = new HelpViewModel(adapter);
}
private HelpPagerAdapter addHelpPages(List<Step> steps, HelpPagerAdapter adapter) {
for (Step step : steps) {
adapter.addPage(R.layout.layout_help, new HelpItemViewModel(step), BR.viewModel);
}
return adapter;
}
Part of my ViewModel
public class HelpItemViewModel {
private final String mText;
private final String mVideoId;
private final String mImageUrl;
public HelpItemViewModel(Step step) {
mText = step.getText();
mHelpId = step.getHelpId();
mImageUrl = step.getImage();
}
}
I have a RecyclerView with one edit text in Adapter where the editText is dynamic based on object present inside the array, How can i take the value of each edittext ?
public class AdapterFastagEditList extends RecyclerView.Adapter<AdapterFastagEditList.ViewHolder> {
Activity activity;
List<JSONObject> list;
OnItemViewClickListener onItemViewClickListener;
public AdapterFastagEditList(Activity activity, List<JSONObject> list, OnItemViewClickListener onItemViewClickListener) {
this.activity = activity;
this.list = list;
this.onItemViewClickListener = onItemViewClickListener;
}
public void setOnItemViewClickListener(OnItemViewClickListener onItemViewClickListener) {
this.onItemViewClickListener = onItemViewClickListener;
}
#NonNull
#Override
public AdapterFastagEditList.ViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
// Initialize view for recyclerview
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
AdapterDynamicEdittextFastagBinding binding = AdapterDynamicEdittextFastagBinding.inflate(inflater, parent, false);
return new ViewHolder(binding.getRoot(), binding);
}
JSONObject object = new JSONObject();
#Override
public void onBindViewHolder(#NonNull AdapterFastagEditList.ViewHolder holder, int position) {
object = list.get(position);
AdapterDynamicEdittextFastagBinding binding = holder.binding;
try {
binding.TextInputContent.setHint(object.getString("BdetailsFieldName"));
binding.EditTextContent.setId(View.generateViewId());
} catch (JSONException e) {
e.printStackTrace();
}
}
#Override
public int getItemCount() {
return list.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
AdapterDynamicEdittextFastagBinding binding;
public ViewHolder(#NonNull View itemView, AdapterDynamicEdittextFastagBinding binding) {
super(itemView);
this.binding = binding;
}
}
}
public class ViewHolder extends RecyclerView.ViewHolder {
AdapterDynamicEdittextFastagBinding binding;
public ViewHolder(#NonNull View itemView, AdapterDynamicEdittextFastagBinding binding) {
super(itemView);
this.binding = binding;
binding.yourEdittext.addTextChangedListener(new TextWatcher() {
#Override
public void afterTextChanged(Editable s) {}
#Override
public void beforeTextChanged(CharSequence s, int start,
int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start,
int before, int count) {
//s.toString() gives you changes
//getAdapterPosition() also gives you changed item index
}
});
}
}
i have two adapters one for my card view and the other one for my drawer. The cards contains links to other options in the app and the drawer contains the same options. What i want is when user clicks on the card, the options in the drawer menu should get selected. Here is my code.
Drawer Adapter:
#SuppressWarnings({"rawtypes", "ConstantConditions"})
public class DrawerAdapter extends RecyclerView.Adapter<DrawerAdapter.ViewHolder> {
private List<DrawerItem> items;
private Map<Class<? extends DrawerItem>, Integer> viewTypes;
private SparseArray<DrawerItem> holderFactories;
private OnItemSelectedListener listener;
public DrawerAdapter(List<DrawerItem> items) {
this.items = items;
this.viewTypes = new HashMap<>();
this.holderFactories = new SparseArray<>();
processViewTypes();
}
#NonNull
#Override
public ViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
ViewHolder holder = holderFactories.get(viewType).createViewHolder(parent);
holder.adapter = this;
return holder;
}
#Override
#SuppressWarnings("unchecked")
public void onBindViewHolder(#NonNull ViewHolder holder, int position) {
items.get(position).bindViewHolder(holder);
}
#Override
public int getItemCount() {
return items.size();
}
#Override
public int getItemViewType(int position) {
return viewTypes.get(items.get(position).getClass());
}
private void processViewTypes() {
int type = 0;
for (DrawerItem item : items) {
if (!viewTypes.containsKey(item.getClass())) {
viewTypes.put(item.getClass(), type);
holderFactories.put(type, item);
type++;
}
}
}
public void setSelected(int position) {
DrawerItem newChecked = items.get(position);
if (!newChecked.isSelectable()) {
return;
}
for (int i = 0; i < items.size(); i++) {
DrawerItem item = items.get(i);
if (item.isChecked()) {
item.setChecked(false);
notifyItemChanged(i);
break;
}
}
newChecked.setChecked(true);
notifyItemChanged(position);
if (listener != null) {
listener.onItemSelected(position);
}
}
public void setListener(OnItemSelectedListener listener) {
this.listener = listener;
}
static abstract class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
private DrawerAdapter adapter;
public ViewHolder(View itemView) {
super(itemView);
itemView.setOnClickListener(this);
}
#Override
public void onClick(View v) {
adapter.setSelected(getAdapterPosition());
}
}
public interface OnItemSelectedListener {
void onItemSelected(int position);
}
}
Card Adapter:
public class CardAdapter extends RecyclerView.Adapter<CardAdapter.ViewHolder> {
;
private RecyclerView parentRecycler;
private List<Card> data;
public CardAdapter(List<Card> data) {
this.data = data;
}
#Override
public void onAttachedToRecyclerView(#NonNull RecyclerView recyclerView) {
super.onAttachedToRecyclerView(recyclerView);
parentRecycler = recyclerView;
}
#NonNull
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
View v = inflater.inflate(R.layout.item_card, parent, false);
return new ViewHolder(v);
}
#Override
public void onBindViewHolder(ViewHolder holder, int position) {
Card card = data.get(position);
holder.getAdapterPosition();
Glide.with(holder.itemView.getContext())
.asGif()
.load(card.getCardIcon())
.into(holder.gifImageView);
holder.textView.setText(card.getCardName());
}
#Override
public int getItemCount() {
return data.size();
}
class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
private GifImageView gifImageView;
private TextView textView;
public ViewHolder(View itemView) {
super(itemView);
gifImageView = itemView.findViewById(R.id.card_gif);
textView = itemView.findViewById(R.id.card_name);
itemView.findViewById(R.id.container).setOnClickListener(this);
}
public void showText() {
int parentHeight = ((View) gifImageView.getParent()).getHeight();
float scale = (parentHeight - textView.getHeight()) / (float) gifImageView.getHeight();
gifImageView.setPivotX(gifImageView.getWidth() * 0.5f);
gifImageView.setPivotY(0);
gifImageView.animate().scaleX(scale)
.withEndAction(new Runnable() {
#Override
public void run() {
textView.setVisibility(View.VISIBLE);
// gifImageView.setColorFilter(Color.BLACK);
}
})
.scaleY(scale).setDuration(200)
.start();
}
public void hideText() {
textView.setVisibility(View.INVISIBLE);
gifImageView.animate().scaleX(1f).scaleY(1f)
.setDuration(200)
.start();
}
#Override
public void onClick(View v) { parentRecycler.smoothScrollToPosition(getAdapterPosition());
}
}
}
}
P.S: I am new to programming any kind of help is appreciated.[As you can see in the image below that I have cards in the main view and the same options are in the drawer menu for example question papers. Now when the user clicks on question paper in the main view the question paper in drawer menu should get selected.[][1]][1]
thank you!
[1]: https://i.stack.imgur.com/FooVb.jpg
I have a recycler view that displays a list of items.
Within each item, there is a title and another RecyclerView that display a list of items.
I want to access the click events of the items of the child RecyclerView.
Screenshot of the layout:
The parent RecyclerView:
public class DetailsGroupAdapter extends RecyclerView.Adapter<DetailsGroupAdapter.ViewHolder>{
private static OnItemClickListener listener;
private Context context;
private int lastPosition = -1;
RecyclerView mRecyclerView;
public interface OnItemClickListener {
void onItemClick(View itemView, int position);
void onGroupItemLongClick(View itemView, int groupPosition, int itemPosition);
void onGroupItemClick(View itemView, int groupPosition, int itemPosition);
}
public void setOnItemClickListener(OnItemClickListener listener) {
DetailsGroupAdapter.listener = listener;
}
public static class ViewHolder extends RecyclerView.ViewHolder {
public TextView tvTitle;
public CardView cvContainer;
public RecyclerView rvItems;
public ViewHolder(final View itemView)
{
super(itemView);
tvTitle = itemView.findViewById(R.id.group_title);
cvContainer = itemView.findViewById(R.id.container);
rvItems = itemView.findViewById(R.id.rv_group_items);
//click listener setup
itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// Triggers click upwards to the adapter on click
if (listener != null)
listener.onItemClick(itemView, getLayoutPosition());
}
});
}
public void clearAnimation()
{
cvContainer.clearAnimation();
}
}
private List<DetailsGroup> itemList;
public DetailsGroupAdapter(List<DetailsGroup> itemList)
{
this.itemList = itemList;
}
#Override
public DetailsGroupAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType)
{
context = parent.getContext();
LayoutInflater inflater = LayoutInflater.from(context);
View layoutView = inflater.inflate(R.layout.item_details_group, parent, false);
mRecyclerView = (RecyclerView) parent;
return new ViewHolder(layoutView);
}
#Override
public void onBindViewHolder(final DetailsGroupAdapter.ViewHolder viewHolder, int groupPosition){
final DetailsGroup detailsGroup = itemList.get(groupPosition);
if(detailsGroup.Title != null){
viewHolder.tvTitle.setText(detailsGroup.Title);
} else {
viewHolder.tvTitle.setVisibility(View.GONE);
}
final DetailsGroupItemsAdapter detailsGroupAdapter = new DetailsGroupItemsAdapter(detailsGroup.itemsList, groupPosition);
detailsGroupAdapter.setOnItemClickListener(new DetailsGroupItemsAdapter.OnItemClickListener() {
#Override
public void onItemClick(View itemView, int position) {
if (listener != null){
listener.onGroupItemClick(itemView, (int) itemView.getTag(), position);
}
}
#Override
public void onLongClick(View itemView, int position) {
if (listener != null){
listener.onGroupItemLongClick(itemView, (int) itemView.getTag(), position);
}
}
});
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(context) {};
viewHolder.rvItems.setLayoutManager(linearLayoutManager);
viewHolder.rvItems.setAdapter(detailsGroupAdapter);
}
private void setAnimation(View viewToAnimate, int position)
{
if (position > lastPosition) {
AlphaAnimation anim = new AlphaAnimation(0.0f, 1.0f);
anim.setDuration(1000);
viewToAnimate.startAnimation(anim);
lastPosition = position;
}
}
#Override
public void onViewDetachedFromWindow(final ViewHolder holder)
{
((ViewHolder)holder).cvContainer.clearAnimation();
}
#Override
public long getItemId(int position) {
return itemList.get(position).hashCode();
}
#Override
public int getItemCount()
{
return itemList.size();
}
public void clear() {
itemList.clear();
notifyDataSetChanged();
}
public void addAll(List<DetailsGroup> list){
itemList.addAll(list);
notifyDataSetChanged();
}
}
The child RecyclerView:
public class DetailsGroupItemsAdapter extends RecyclerView.Adapter<DetailsGroupItemsAdapter.ViewHolder>{
private static OnItemClickListener listener;
private Context context;
private int lastPosition = -1;
private int groupPosition;
public interface OnItemClickListener {
void onItemClick(View itemView, int position);
void onLongClick(View itemView,int position);
}
public void setOnItemClickListener(OnItemClickListener listener) {
DetailsGroupItemsAdapter.listener = listener;
}
public static class ViewHolder extends RecyclerView.ViewHolder {
public TextView tvTitle;
public TextView tvSubTitle;
public ImageView ivThumbnail;
public LinearLayout llContainer;
public ViewHolder(final View itemView)
{
super(itemView);
ivThumbnail = itemView.findViewById(R.id.thumbnail);
tvTitle = itemView.findViewById(R.id.title);
tvSubTitle = itemView.findViewById(R.id.subtitle);
llContainer = itemView.findViewById(R.id.container);
itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (listener != null)
listener.onItemClick(itemView, getLayoutPosition());
}
});
itemView.setOnLongClickListener(new View.OnLongClickListener() {
#Override
public boolean onLongClick(View view) {
if (listener != null)
listener.onLongClick(itemView, getLayoutPosition());
return false;
}
});
}
public void clearAnimation()
{
llContainer.clearAnimation();
}
}
private List<ItemDetail> itemList;
public DetailsGroupItemsAdapter(List<ItemDetail> itemList, int groupPosition)
{
this.itemList = itemList;
this.groupPosition = groupPosition;
}
#Override
public DetailsGroupItemsAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType)
{
context = parent.getContext();
LayoutInflater inflater = LayoutInflater.from(context);
View layoutView = inflater.inflate(R.layout.item_details, parent, false);
return new ViewHolder(layoutView);
}
#Override
public void onBindViewHolder(DetailsGroupItemsAdapter.ViewHolder viewHolder, int position){
viewHolder.itemView.setTag(groupPosition);
ItemDetail itemDetail = itemList.get(position);
if(itemDetail.Title != null){
viewHolder.tvTitle.setText(itemDetail.Title);
} else {
viewHolder.tvTitle.setVisibility(View.GONE);
}
if(itemDetail.Sub_Title != null){
viewHolder.tvSubTitle.setText(itemDetail.Sub_Title);
} else {
viewHolder.tvSubTitle.setVisibility(View.GONE);
}
if(itemDetail.Thumbnail_Enabled){
PicManipulationUtility.SetGenericPictureFromThumbnailType(viewHolder.ivThumbnail, itemDetail.Thumbnail_Type, itemDetail.Thumbnail);
} else {
viewHolder.ivThumbnail.setVisibility(View.GONE);
}
setAnimation(viewHolder.llContainer, position);
}
private void setAnimation(View viewToAnimate, int position)
{
if (position > lastPosition) {
AlphaAnimation anim = new AlphaAnimation(0.0f, 1.0f);
anim.setDuration(1000);
viewToAnimate.startAnimation(anim);
lastPosition = position;
}
}
#Override
public void onViewDetachedFromWindow(final ViewHolder holder)
{
((ViewHolder)holder).llContainer.clearAnimation();
}
#Override
public long getItemId(int position) {
return itemList.get(position).hashCode();
}
#Override
public int getItemCount()
{
return itemList.size();
}
public void clear() {
itemList.clear();
notifyDataSetChanged();
}
public void addAll(List<ItemDetail> list){
itemList.addAll(list);
notifyDataSetChanged();
}
}
The classes used:
ItemDetail and DetailsGroup are POJOs to convert JSON into objects.
What I managed to do so far to temporarily fix the problem is:
In onBindViewHolder of parent RecyclerView, I grabbed the group position.
Then I passed the group position of the parent down to the child
adapter initializer in (DetailsGroupItemsAdapter)
Finally, in the child onBindViewHolder I set the tag to be the parent
group position(viewHolder.itemView.setTag(groupPosition);)
So in the click event of the child, I can say:
listener.onGroupItemClick(itemView, (int) itemView.getTag(), position);
Thus having both the group position and the child position in the bubbled event in my Activity or Fragment.
But I know for sure that the passed group position can change for any reason such as updating group items or removing items.
I want to know if there is a more robust solution to implement the click events of nested items in this case.
I used this https://gist.github.com/riyazMuhammad/1c7b1f9fa3065aa5a46f, especially
CustomItemClickListener.java :
public interface CustomItemClickListener {
public void onItemClick(View v, int position);
}
(Parent) RecyclerView modifications :
public class ItemsListAdapter extends RecyclerView.Adapter<ItemsListAdapter.ViewHolder> {
ArrayList<ItemListSingleItem> data;
Context mContext;
CustomItemClickListener listener;
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View mView = LayoutInflater.from(parent.getContext()).inflate(R.layout.items_list_single_item, parent, false);
final ViewHolder mViewHolder = new ViewHolder(mView);
mView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
listener.onItemClick(v, mViewHolder.getPosition());
}
});
return mViewHolder;
}
//[... the other "classical" parts of your code...]
}
Alone, it allowed me to have separate click events on child and parent
With some modifications, it led me to something similar to your "fix", I think, but maybe it'll give you some clues : I am giving the parent position and the parent listener to the child when constructing it, and then a click on the child produces the same behavior as a click on the parent
Child RecyclerView constructor :
public AppsAdapter(ArrayList<PackageInformation.InfoObject> dataSet, CustomOnItemClickListener customItemClickListener, int parentPos) {
appsDataSet = dataSet;
onItemClickListener = customItemClickListener;
parentPosition = parentPos;
}
Child RecyclerView onCreateViewHolder :
#Override
public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
// Create a new view.
View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.item_app, viewGroup, false);
// Create the ViewHolder to return
final AppsAdapter.ViewHolder mViewHolder = new AppsAdapter.ViewHolder(v);
// Add the Listener
v.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) { onItemClickListener.onItemClick(v, parentPosition); }
});
return mViewHolder;
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) {
}});