I'm trying to adapt a recyclerview to display a list of objects. But actually I have some kind of wierd bug. My object have ID and Name data to display, but in the list, at first, I only can see the Id, and when I scroll down, only the rows going completely out of the screen are completely displayed...
This is my ListPresentActivity.
public class ListPresentActivity extends AppCompatActivity implements ViewInterface {
private static final String EXTRA_PRESENT_ID = "EXTRA_PRESENT_ID";
private static final String EXTRA_PRESENT_NAME = "EXTRA_PRESENT_NAME";
private List<PresentItem> listOfPresent;
private LayoutInflater layoutInflater;
private RecyclerView recyclerView;
private CustomAdapter adapter;
private PresentController presentController;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_list_present);
recyclerView = (RecyclerView) findViewById(R.id.rec_list_activity);
recyclerView.setHasFixedSize(true);
layoutInflater = getLayoutInflater();
presentController = new PresentController(this, new FakePresentModel());
}
#Override
public void startDetailActivity(int id, String name, String info, String target, String advice, String price) {
//public void startDetailActivity(int id) {
Intent i = new Intent(this,PresentDetailActivity.class);
i.putExtra(EXTRA_PRESENT_ID, id);
i.putExtra(EXTRA_PRESENT_NAME, name);
startActivity(i);
}
#Override
public void setUpAdapterAndView(List<PresentItem> listOfPresent) {
this.listOfPresent = listOfPresent;
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
adapter = new CustomAdapter();
recyclerView.setAdapter(adapter);
}
private class CustomAdapter extends RecyclerView.Adapter<CustomAdapter.CustomViewHolder>{
#Override
public CustomAdapter.CustomViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = layoutInflater.inflate(R.layout.item_present, parent, false);
return new CustomViewHolder(v);
}
#Override
public void onBindViewHolder(CustomAdapter.CustomViewHolder holder, int position) {
PresentItem currentPresent = listOfPresent.get(position);
holder.id.setText(
Integer.toString(currentPresent.getId())
);
holder.name.setText(
currentPresent.getName()
);
}
#Override
public int getItemCount() {
return listOfPresent.size();
}
class CustomViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{
private TextView id;
private TextView name;
private ViewGroup container;
public CustomViewHolder(View itemView){
super(itemView);
this.id = (TextView) itemView.findViewById(R.id.texv_item_id);
this.name = (TextView) itemView.findViewById(R.id.texv_item_name);
this.container = (ViewGroup) itemView.findViewById(R.id.root_list_present);
this.container.setOnClickListener(this);
}
#Override
public void onClick(View v) {
PresentItem presentItem = listOfPresent.get(
this.getAdapterPosition()
);
presentController.onListItemClick(presentItem);
}
}
}
}
The layout item_present.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="88dp"
android:id="#+id/root_list_present"
xmlns:tools="http://schemas.android.com/tools">
<TextView
android:id="#+id/texv_item_id"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:textSize="48sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:text="#id" />
<TextView
android:id="#+id/texv_item_name"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="84dp"
android:layout_marginTop="8dp"
android:ellipsize="end"
android:maxLines="1"
android:textSize="20sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:text="collier" />
</android.support.constraint.ConstraintLayout>
And my list layout
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="net.lubbee.bruh.view.ListPresentActivity">
<android.support.v7.widget.RecyclerView
android:id="#+id/rec_list_activity"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</android.support.constraint.ConstraintLayout>
I have search for a long time now, and the only concording result I have fount seems to be fixed with the recyclerView.setHasFixedSize(true); which is not my case...
Thanks for your time!
PS : If there is some code parts needed missing, just say the word! :]
Just after the first loading.
After one scroll to the bottom and back to the top of the screen
<LinearLayout android:layout_width="match_parent"
android:layout_height="88dp"
android:weightSum="1"
xmlns:android="http://schemas.android.com/apk/res/android">
<TextView
android:layout_gravity="center_vertical"
android:layout_weight="0.2"
android:layout_width="0dp"
android:layout_height="wrap_content" />
<TextView
android:layout_gravity="center_vertical"
android:layout_weight="0.8"
android:layout_width="0dp"
android:layout_height="wrap_content" />
</LinearLayout>
Try this simple LinearLayout it should work
You can also add other properties, but for now try it out
Related
I have set up a GridLayoutManager with a span of 2 and ideally,it should show my elements in 2 columns but the output shows only one element.
Below is the code:
Adapter
public class MemoriesAdapter extends RecyclerView.Adapter<MemoriesAdapter.MemoriesViewHolder> {
private static final String TAG = "MemoriesAdapter";
private final LayoutInflater mInflater;
private final List<List<String>> titleList;
private final List<List<StorageReference>> imageList;
public MemoriesAdapter(Context context, List<List<String>> titleList, List<List<StorageReference>> imageList) {
this.mInflater = LayoutInflater.from(context);
this.titleList = titleList;
this.imageList = imageList;
Log.d(TAG, "Constructor ");
}
#NonNull
#Override
public MemoriesAdapter.MemoriesViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View view = mInflater.inflate(R.layout.memories_cards, parent, false);
MemoriesAdapter.MemoriesViewHolder viewHolder = new MemoriesAdapter.MemoriesViewHolder(view);
Log.d(TAG, "onCreateViewHolder");
return viewHolder;
}
#Override
public void onBindViewHolder(#NonNull MemoriesAdapter.MemoriesViewHolder holder, int position) {
if (!(titleList.isEmpty() || imageList.isEmpty())) {
Log.d(TAG, "Lists are not empty, proceeding.");
String title = String.valueOf(titleList.get(position));
holder.title.setText(title);
// TODO: get storage ref into the imageview
}
}
#Override
public int getItemCount() {
return titleList.size();
}
public class MemoriesViewHolder extends RecyclerView.ViewHolder {
private ImageView image;
private TextView title;
private ImageView image2;
private TextView title2;
public MemoriesViewHolder(#NonNull View itemView) {
super(itemView);
Log.d(TAG, "ViewHolder");
image = itemView.findViewById(R.id.memory_image_one);
title = itemView.findViewById(R.id.memory_title);
}
}
}
Fragment
memoriesViewModel.getTitleList().observe(getViewLifecycleOwner(), titList -> {
titleList.add(titList);
memoriesAdapter.notifyDataSetChanged();
Log.d(TAG, "Memories Frag " + titleList);
});
GridLayoutManager manager = new GridLayoutManager(getContext(), 2);
memoryRecyclerView.setHasFixedSize(true);
memoryRecyclerView.setLayoutManager(manager);
memoryRecyclerView.setAdapter(memoriesAdapter);
item_layout
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/memory_dashboard_card"
android:layout_width="180dp"
android:layout_height="170dp"
android:background="#drawable/memories_card_yellow"
>
<ImageView
android:id="#+id/memory_image_one"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="12dp"
android:layout_marginStart="12dp"
android:layout_marginEnd="12dp"
android:layout_marginBottom="60dp"
android:src="#drawable/unicorn"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
/>
<TextView
android:id="#+id/memory_title"
android:layout_width="108dp"
android:layout_height="21dp"
android:text="My first date was epic"
android:textSize="16sp"
android:textColor="#000"
android:textStyle="bold"
android:textAlignment="center"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/memory_image_one" />
</androidx.constraintlayout.widget.ConstraintLayout>
layout
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/memories_recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:spanCount="2"
tools:listitem="#layout/memories_cards" />
Comment if you want more code or edit if I have given any unnecessary details
Thank You!
EDIT: I have added the entire adapter and I am removing the layout files.
I know this is kinda late but i had the same exact problem and to fix it make sure that the value of layout_width and layout_height is match_parent, i'm talking about the xml layout that you used in your recyclerview adapter, hope you got it fixed.
I have been trying to fill my Recycler view from Firebase Realtime Database, but this is the result:
Emtpty Cards in Recycler View
I am pretty sure that I have followed all the steps. What is surprising is that even though the contents aren't loading, the number of empty cards that have loaded are correct.
This is my Database:
Picture of Firebase Database
This is my Layout file with Card View:
<com.google.android.material.card.MaterialCardView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="10dp"
android:layout_marginTop="10dp"
android:layout_marginStart="15dp"
android:layout_marginEnd="15dp"
app:cardElevation="15dp"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="10dp">
<ImageView
android:id="#+id/food_image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
tools:srcCompat="#tools:sample/avatars" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:padding="10dp">
<TextView
android:id="#+id/food_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="ITEM NAME"
android:textSize="18sp" />
<LinearLayout
android:orientation="horizontal"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:padding="10dp">
<TextView
android:id="#+id/food_price"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="PRICE:"/>
</LinearLayout>
<com.google.android.material.button.MaterialButton
android:id="#+id/addtocart_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
style="?attr/borderlessButtonStyle"
android:text="ADD TO CART"/>
</LinearLayout>
</LinearLayout>
</com.google.android.material.card.MaterialCardView>
This is my Model Class:
package com.example.dubstep.Model;
public class FoodItem {
String base_price;
String name;
public FoodItem(){
}
public FoodItem(String price, String name) {
this.base_price = price;
this.name = name;
}
public String getBase_price() {
return base_price;
}
public void setBase_price(String base_price) {
this.base_price = base_price;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
Here is my ViewHolder Class:
public class FoodItemViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
public TextView mFoodItemName;
public ImageView mFoodImage;
public TextView mFoodItemPrice;
public MaterialButton mAddToCart;
public ItemClickListener listener;
public FoodItemViewHolder(#NonNull View itemView) {
super(itemView);
mFoodItemName = (TextView) itemView.findViewById(R.id.food_name);
mFoodItemPrice = (TextView) itemView.findViewById(R.id.food_price);
mFoodImage = (ImageView) itemView.findViewById(R.id.food_image);
mAddToCart = (MaterialButton) itemView.findViewById(R.id.addtocart_btn);
}
public void setItemClickListener(ItemClickListener listener){
this.listener = listener;
}
#Override
public void onClick(View v) {
listener.onClick(v,getAdapterPosition(),false);
}
}
I have used Firebase Recycler Adapter in my Main Activity OnStart:
FirebaseRecyclerOptions<FoodItem> options = new FirebaseRecyclerOptions.Builder<FoodItem>().setQuery(foodref,FoodItem.class).build();
FirebaseRecyclerAdapter<FoodItem, FoodItemViewHolder> adapter =
new FirebaseRecyclerAdapter<FoodItem, FoodItemViewHolder>(options) {
#Override
protected void onBindViewHolder(#NonNull FoodItemViewHolder holder, int position, #NonNull FoodItem model) {
holder.mFoodItemName.setText(model.getName());
holder.mFoodItemPrice.setText("Price: "+model.getBase_price());
}
#NonNull
#Override
public FoodItemViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.food_item_layout,parent,false);
FoodItemViewHolder holder = new FoodItemViewHolder(view);
return holder;
}
};
recyclerView.setAdapter(adapter);
adapter.startListening();
And in my OnCreate I have initialized my Recycler View and Layout Manager:
foodref = FirebaseDatabase.getInstance().getReference().child("food_menu");
recyclerView = findViewById(R.id.main_recyclerview);
recyclerView.setHasFixedSize(true);
layoutManager = new LinearLayoutManager(MainActivity.this);
recyclerView.setLayoutManager(layoutManager);
Can Someone help me and tell me where I might be going wrong?
Thank you!
My RecyclerView doesn't show any value in alert dialog. I am confused and don't know where should I looking for a problem in my code. I hope some of you guys met with same issue.
This is activity where I am calling my RecycleView andl AlertDialog.
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
pondeljak = (Button) findViewById(R.id.buttonPonedeljak);
utorak = (Button) findViewById(R.id.buttonUtorak);
sreda = (Button) findViewById(R.id.buttonSreda);
cetvrtak = (Button) findViewById(R.id.buttonCetvrtak);
petak = (Button) findViewById(R.id.buttonPetak);
db = new DataDays(this);
View view = getLayoutInflater().inflate(R.layout.casovi,null);
alertDialogBuilder = new AlertDialog.Builder(this);
alertDialogBuilder.setView(view);
alertDialog = alertDialogBuilder.create();
recyclerView = (RecyclerView) view.findViewById(R.id.recycleCasoviID);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
casoviList = new ArrayList<>();
casoviItems = new ArrayList<>();
// for (Casovi c: casoviList){
Casovi casovi = new Casovi();
//casovi.setId(0);
casovi.setDan("asas");
casovi.setRedniBrCasa("ssss");
casovi.setNzaivCasa("ssddff");
casoviItems.add(casovi);
recycleViewAdapter = new RecycleViewAdapter(this, casoviItems);
recyclerView.setAdapter(recycleViewAdapter);
recycleViewAdapter.notifyDataSetChanged();
pondeljak.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (db.casoviCountPondeljak() == 0){
Intent intent = new Intent(MainActivity.this, Unos_casova.class);
intent.putExtra("Dan", "Pondeljak");
startActivity(intent);
}else {
alertDialog.show();
}
This is RecycleView class. I am not sure, maybe here is some problem?
public class RecycleViewAdapter extends RecyclerView.Adapter<RecycleViewAdapter.ViewHolder> {
private Context context;
private List<Casovi> casoviItems;
public RecycleViewAdapter(Context context, List<Casovi> casoviItems) {
this.context = context;
this.casoviItems = casoviItems;
}
#Override
public RecycleViewAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.prikaz_casova, parent,false);
return new ViewHolder(view, context);
}
#Override
public void onBindViewHolder( RecycleViewAdapter.ViewHolder holder, int position) {
Casovi casovi = new Casovi();
holder.redniBrCasPrikaz.setText(casovi.getRedniBrCasa());
holder.nazivCasPrikaz.setText(casovi.getRedniBrCasa());
}
#Override
public int getItemCount() {
return casoviItems.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
public TextView redniBrCasPrikaz;
public TextView nazivCasPrikaz;
public Button delteBtn;
public Button editBtn;
public CardView cardView;
public ViewHolder(View view, Context ctx) {
super(view);
context = ctx;
redniBrCasPrikaz = (TextView) view.findViewById(R.id.rednibrojCasaID);
nazivCasPrikaz = (TextView) view.findViewById(R.id.nazivcasaID);
delteBtn = (Button) view.findViewById(R.id.obrisiCasBtnID);
editBtn = (Button) view.findViewById(R.id.izmeniCasBtnID);
cardView = (CardView) view.findViewById(R.id.carViewID);
}
}
Layout casovi. That RecycleView on witch prikaz casova should be attached.
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.RecyclerView
android:id="#+id/recycleCasoviID"
android:layout_width="match_parent"
android:layout_height="574dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.283" />
</android.support.constraint.ConstraintLayout>
Layout prikaz_casova. This layout should show values from db. In this exemple I've posted there is hadrdoced values tho be showen.
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.CardView
android:id="#+id/carViewID"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="133dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="470dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.471">
<RelativeLayout
android:id="#+id/relativniID"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:id="#+id/rednibrojCasaID"
android:layout_width="126dp"
android:layout_height="wrap_content"
android:text="redni broj casa"
android:textSize="14dp"
android:textStyle="italic"
/>
<TextView
android:id="#+id/nazivcasaID"
android:layout_width="338dp"
android:layout_height="105dp"
android:layout_below="#+id/rednibrojCasaID"
android:layout_marginTop="1dp"
android:text="Naziv casa"
android:textSize="24dp"
android:textStyle="bold" />
<Button
android:id="#+id/obrisiCasBtnID"
android:layout_width="40dp"
android:layout_height="37dp"
android:layout_below="#+id/rednibrojCasaID"
android:layout_toRightOf="#+id/nazivcasaID"
android:background="#drawable/delete" />
<Button
android:id="#+id/izmeniCasBtnID"
android:layout_width="40dp"
android:layout_height="37dp"
android:layout_below="#+id/obrisiCasBtnID"
android:layout_marginLeft="3dp"
android:layout_marginTop="15dp"
android:layout_toRightOf="#+id/nazivcasaID"
android:background="#drawable/edit" />
</RelativeLayout>
</android.support.v7.widget.CardView>
</android.support.constraint.ConstraintLayout>
Here the error you made, in your RecyclerView Adapter class.
#Override
public void onBindViewHolder( RecycleViewAdapter.ViewHolder holder, int position) {
Casovi casovi = new Casovi();
It should be
Casovi casovi = casoviItems.get(position);
holder.redniBrCasPrikaz.setText(casovi.getRedniBrCasa());
holder.nazivCasPrikaz.setText(casovi.getRedniBrCasa());
}
You are all done
Probably I am missing something here, but I am animating a recyclerview to outside of its container and when it is in the final position, the click events are not triggered, neither the scroll works...
I am using the ObjectAnimator to translate it, so I thought the clickable areas were also translated. Here is the relevant code:
The Fragment
public class SlideListFragment extends Fragment {
private Button slideButton;
private RecyclerView listToSlide;
private DummyListAdapter listAdapter;
private LinearLayout listContainer;
public static SlideListFragment newInstance() {
return new SlideListFragment();
}
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container,
#Nullable Bundle savedInstanceState) {
View root = inflater.inflate(R.layout.slide_list_fragment, container, false);
slideButton = root.findViewById(R.id.slide_up_btn);
slideButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
slideUpRoomsList();
}
});
listToSlide = root.findViewById(R.id.list_to_slide);
listContainer = root.findViewById(R.id.list_container);
setupList();
return root;
}
private void setupList() {
GridLayoutManager layoutManager = new GridLayoutManager(this.getContext(), 1);
layoutManager.setReverseLayout(true);
listToSlide.setLayoutManager(layoutManager);
listAdapter = new DummyListAdapter(this.getContext());
listToSlide.setAdapter(listAdapter);
setListData(5);
}
private void setListData(int i) {
ArrayList<DummyModel> items = new ArrayList<>();
for (int j = 0; j < i; j++) {
items.add(new DummyModel(j, "TEXT" + j));
}
listAdapter.refreshItems(items);
}
private void slideUpRoomsList() {
float height = listContainer.getHeight();
ObjectAnimator showAnimation = ObjectAnimator.ofFloat(listContainer, "translationY", -height);
showAnimation.setDuration(500);
showAnimation.start();
}
}
The Fragment Layout
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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:id="#+id/slidelist"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clipChildren="false"
android:clipToPadding="false"
tools:context=".ui.slidelist.SlideListFragment">
<android.support.constraint.Guideline
android:id="#+id/guideline"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.8" />
<android.support.constraint.ConstraintLayout
android:layout_width="0dp"
android:layout_height="0dp"
android:background="#FF0000"
android:clipChildren="false"
android:clipToPadding="false"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/guideline">
<LinearLayout
android:id="#+id/list_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v7.widget.RecyclerView
android:id="#+id/list_to_slide"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#00FF00"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</LinearLayout>
</android.support.constraint.ConstraintLayout>
<Button
android:id="#+id/slide_up_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="SlideUp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
The Adapter
public class DummyListAdapter extends RecyclerView.Adapter<DummyListAdapter.ViewHolder> {
private WeakReference<Context> mContext;
private ArrayList<DummyModel> data;
public DummyListAdapter(Context ctx) {
mContext = new WeakReference<>(ctx);
}
#NonNull
#Override
public DummyListAdapter.ViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
// create a new view
View v = LayoutInflater.from(parent.getContext())
.inflate(R.layout.dummy_list_item, parent, false);
DummyListAdapter.ViewHolder vh = new DummyListAdapter.ViewHolder(v);
return vh;
}
#Override
public void onBindViewHolder(#NonNull DummyListAdapter.ViewHolder holder, int position) {
// get element from your dataset at this position
final DummyModel item = data.get(position);
// replace the contents of the view with that element
holder.labelTV.setText(item.getText());
holder.itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(mContext.get(), "Item Clicked: "+ item.getText(), Toast.LENGTH_SHORT).show();
}
});
}
#Override
public int getItemCount() {
return data != null ? data.size() : 0;
}
public void refreshItems(ArrayList<DummyModel> items) {
this.data = items;
notifyDataSetChanged();
}
public class ViewHolder extends RecyclerView.ViewHolder {
TextView labelTV;
public ViewHolder(View itemView) {
super(itemView);
this.labelTV = itemView.findViewById(R.id.label_tv);
}
}
}
The List Item Layout
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/label_tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:text="TextView"
android:textSize="20sp"
android:textColor="#0000FF"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
What is happening in this case?
UPDATE
I am doing some debug and I noticed that the problem is because the end position is outside the list container. If I translate inside the container, it works properly. So my new question is: how can I translate a view outside of the container, while still having the click events triggered?
Basically, I just gave up on this approach. I changed my layout so it list has space to show up inside its container.
I want to create a list of items that have a background image and a TextView. Although it creates the RecyclerView normally and sets the text, the background image doesn't set.
This is my Adapter Class
public class Casino_Adapter extends RecyclerView.Adapter<Casino_Adapter.ViewHolder> {
private Data[] mDataset;
private ClickListener clickListener;
public Context context;
// Provide a suitable constructor (depends on the kind of dataset)
public Casino_Adapter(Data[] myDataset) {
this.mDataset = myDataset;
this.context = context;
}
#Override
public Casino_Adapter.ViewHolder onCreateViewHolder(ViewGroup parent,
int viewType) {
// create a new view
View v = LayoutInflater.from(parent.getContext())
.inflate(R.layout.casino_card_row, parent, false);
// set the view's size, margins, paddings and layout parameters
ViewHolder vh = new ViewHolder(v);
return vh;
}
public static class ViewHolder extends RecyclerView.ViewHolder {
private final Context context = null;
// each data item is just a string in this case
public TextView mTextView;
public ImageView mImageView;
public CardView cardView;
//Typeface tf;
public ViewHolder(View v) {
super(v);
mTextView = (TextView) v.findViewById(R.id.text);
mImageView = (ImageView) v.findViewById(R.id.image);
cardView = (CardView) v.findViewById(R.id.card_view);
//cardView.setPreventCornerOverlap(false);
}
}
// Replace the contents of a view (invoked by the layout manager)
#Override
public void onBindViewHolder(ViewHolder holder, int position) {
// - get element from your dataset at this position
// - replace the contents of the view with that element
holder.mTextView.setText(mDataset[position].getText());
holder.mImageView.setImageResource(mDataset[position].getImage());
}
public void setClickListener(ClickListener clickListener) {
this.clickListener = clickListener;
}
// Return the size of your dataset (invoked by the layout manager)
#Override
public int getItemCount() {
return mDataset.length;
}
public interface ClickListener {
public void itemClicked(View view, int pos);
}
}
I have a Fragment Class where I want the RecyclerView to be.
public class CasinoFragment extends Fragment {
protected RecyclerView recyclerView;
protected RecyclerView.Adapter mAdapter;
protected RecyclerView.LayoutManager mLayoutManager;
public CasinoFragment() {
// Required empty public constructor
}
#Override
public void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
initial();
}
private void initial() {
final Data datas[] =
{
new Data("This is an item", R.drawable.ic_home_white_36dp),
new Data("This is an item 2", R.drawable.car),
new Data("asdasd`sdads", R.drawable.car),
new Data("This is an item 3", R.drawable.car)
};
mAdapter = new Casino_Adapter(datas);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_casino, container, false);
recyclerView = (RecyclerView) view.findViewById(R.id.my_recycler_view);
mLayoutManager = new LinearLayoutManager(getActivity());
recyclerView.setLayoutManager(mLayoutManager);
recyclerView.setAdapter(mAdapter);
return view;
}
}
And these are the Setters that I use.
public class Data {
int image;
String text;
public Data(String title, int backimage)
{
this.text = title;
this.image = backimage;
}
public String getText()
{
return text;
}
public int getImage()
{
return image;
}
public void setText()
{
this.text=text;
}
public void setImageID()
{
this.image = image;
}
}
Casino Row XML
<android.support.v7.widget.CardView
xmlns:card_view="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/card_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
card_view:cardCornerRadius="8dp"
android:layout_margin="5dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#111111"
>
<ImageView
android:layout_width="match_parent"
android:layout_height="200dp"
android:id="#+id/image"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:adjustViewBounds="true"
android:scaleType="centerCrop"
android:background="#drawable/image_round"
android:src="#drawable/car" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignBottom="#+id/image"
android:id="#+id/rel_color"
android:background="#4c4c4c">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Μπύρα"
android:textColor="#fcfcfc"
android:textSize="30sp"
android:shadowColor="#000000"
android:shadowDx="3"
android:shadowDy="3"
android:shadowRadius="5"
android:id="#+id/text"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
</RelativeLayout>
</android.support.v7.widget.CardView>
The result I get is the following.
The reason why you aren't seeing your image, is because it isn't actually visible.
Your rel_color layout has the same size attributes as your ImageView.
If you want to display a layout above the ImageView, you just need to remove the background of it, otherwise the ImageView will be hidden.
Just Like that. but remember your images dimensions must be low. in my case i used 200x200
<?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"
android:id="#+id/rl_menu_item"
android:layout_width="match_parent"
android:layout_height="150dp"
android:layout_margin="5dp"
android:background="#android:color/transparent"
card_view:cardCornerRadius="4dp"
card_view:cardUseCompatPadding="true">
<RelativeLayout
android:id="#+id/img_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/bg_blrr">
<ImageView
android:id="#+id/iv_icon"
android:layout_width="90dp"
android:layout_height="90dp"
android:layout_centerHorizontal="true"
android:layout_centerInParent="true"
android:layout_gravity="center_horizontal"
android:adjustViewBounds="true"
android:background="#drawable/gray_circle"
android:padding="15dp"
android:scaleType="centerCrop"
android:src="#drawable/school" />
<TextView
android:id="#+id/tv_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignEnd="#id/iv_icon"
android:layout_alignLeft="#id/iv_icon"
android:layout_alignRight="#id/iv_icon"
android:layout_alignStart="#id/iv_icon"
android:layout_below="#id/iv_icon"
android:layout_gravity="center_horizontal"
android:gravity="center"
android:text="Your Favourite Place"
android:textColor="#android:color/black" />
</RelativeLayout>
</android.support.v7.widget.CardView>