i have a recyclerview in my activity and in each item i have two button and a ordernumber when minus bottom make zero the ordernumber, i want to hide this item and other item come up and fill the blank space.I hide the item with setVisibility() but i don`t know how to handle blank space.
this is my recyclerview adapter:
package com.test.mohammaddvi.snappfood.Adapter;
public class RecyclerViewBuyBasketAdapter extends RecyclerView.Adapter<RecyclerViewBuyBasketAdapter.SingleItemBuyBasket> {
private ArrayList<FinalFood> foodList;
private Context mContext;
private View view;
public RecyclerViewBuyBasketAdapter(ArrayList<FinalFood> foodList, Context mContext) {
this.foodList = foodList;
this.mContext = mContext;
}
#NonNull
#Override
public RecyclerViewBuyBasketAdapter.SingleItemBuyBasket onCreateViewHolder(ViewGroup parent, int viewType) {
view = LayoutInflater.from(parent.getContext()).inflate(R.layout.buybasketitem, null);
return new RecyclerViewBuyBasketAdapter.SingleItemBuyBasket(view);
}
#Override
public void onBindViewHolder(final RecyclerViewBuyBasketAdapter.SingleItemBuyBasket holder, int position) {
FinalFood food = foodList.get(position);
holder.foodName.setText(food.getName());
holder.foodDetails.setText(food.getDetails());
holder.foodPrice.setText(food.getPrice());
holder.foodOrderNumber.setText(food.getOrdernumber() + "");
handleClick(holder, view);
}
private void handleClick(final RecyclerViewBuyBasketAdapter.SingleItemBuyBasket holder, final View view) {
holder.foodPlusButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
FinalFood food = foodList.get(holder.getAdapterPosition());
int orderNumber = food.getOrdernumber();
int newOrderNumber = orderNumber + 1;
food.setOrdernumber(newOrderNumber);
holder.foodOrderNumber.setText(newOrderNumber + "");
}
});
holder.foodMinusButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
FinalFood food = foodList.get(holder.getAdapterPosition());
int orderNumber = food.getOrdernumber();
if (orderNumber == 1) {
int newOrderNumber = orderNumber - 1;
food.setOrdernumber(newOrderNumber);
view.setVisibility(View.GONE);
} else {
int newOrderNumber = orderNumber - 1;
food.setOrdernumber(newOrderNumber);
holder.foodOrderNumber.setText(newOrderNumber + "");
}
}
});
}
#Override
public int getItemCount() {
return (null != foodList ? foodList.size() : 0);
}
public class SingleItemBuyBasket extends RecyclerView.ViewHolder {
TextView foodName;
TextView foodPrice;
Button foodPlusButton;
Button foodMinusButton;
TextView foodOrderNumber;
TextView foodDetails;
SingleItemBuyBasket(View itemView) {
super(itemView);
this.foodName = itemView.findViewById(R.id.foodNameInBuyBasket);
this.foodPrice = itemView.findViewById(R.id.foodPriceInBuyBasket);
this.foodDetails = itemView.findViewById(R.id.foodDetailsInBuyBasket);
this.foodPlusButton = itemView.findViewById(R.id.plusbuttonInBuyBasket);
this.foodMinusButton = itemView.findViewById(R.id.minusbuttonInBuyBasket);
this.foodOrderNumber = itemView.findViewById(R.id.ordernumberInBuyBasket);
}
}
}
and this is my activity:
package com.test.mohammaddvi.snappfood;
public class BuyBasket extends AppCompatActivity{
ArrayList<FinalFood> foods = new ArrayList<>();
RecyclerViewBuyBasketAdapter recyclerViewBuyBasketAdapter;
RecyclerView recyclerView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_buy_basket);
recyclerView = findViewById(R.id.recyclerview);
foods= (ArrayList<FinalFood>) getIntent().getSerializableExtra("final");
recyclerViewBuyBasketAdapter = new RecyclerViewBuyBasketAdapter(foods, BuyBasket.this);
recyclerView.setLayoutManager(new LinearLayoutManager(BuyBasket.this, LinearLayoutManager.VERTICAL, false));
recyclerView.setHasFixedSize(true);
recyclerView.setAdapter(recyclerViewBuyBasketAdapter);
}
}
It's better you delete the entire row rather than changing visibility. This is the code to remove the row. You need to call removeItem(position); method in your button onclickListener
public void removeItem(int position)
{
// Remove specified position
models.remove(position);
// Notify adapter to remove the position
notifyItemRemoved(position);
// Notify adapter about data changed
notifyItemChanged(position);
// Notify adapter about item range changed
notifyItemRangeChanged(position, arraylist.size());
}
Inside your xml, define two parents. One for the hidden content and the other for the item that you want to appear when you hide the first one
Try playing with View when clicking in one parent or the other:
layout.setVisibility(View.GONE) or view.setVisibility(View.VISIBLE);
Related
App Screen
I want to automatically get the sum of the items once added in the recycler view and at the same time get the sum of the items when the Quantity changes and when an item from the recyclerView is removed. I am new in Android, and I cannot think of any way to achieve this. I am thinking something like the code below, but I don't know how to implement it.
TextView ProductPrice = itemView.findViewById(R.id.productPricelbl);
TextView QTY = itemView.findViewById(R.id.Quantity);
Int total;
private void GetTotal(){
total += Integer.parseInt(ProductPrice.getText().toString()) * Integer.parseInt(QTY .getText().toString())
}
I am using a custom adapter for my recycler view with the code below
public class ListViewAdapter extends RecyclerView.Adapter<DemoVH>{
ArrayList<ProductListViewModel> productList;
Context mContext;
public ListViewAdapter(ArrayList<ProductListViewModel> productList, Context context) {
this.productList = productList;
this.mContext = context;
}
#NonNull
#Override
public DemoVH onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.recycler_view_row,parent,false);
return new DemoVH(view).linkadapter(this);
}
#Override
public void onBindViewHolder(#NonNull DemoVH holder, int position) {
final ProductListViewModel productListViewModel = productList.get(position);
holder.Product_Name.setText(productListViewModel.getProductName());
holder.Product_Barcode.setText(productListViewModel.getProductBarcode());
holder.Product_Price.setText(productListViewModel.getProductPrice());
}
#Override
public int getItemCount() {
return productList.size();
}
}
class DemoVH extends RecyclerView.ViewHolder{
TextView Product_Name;
TextView Product_Barcode;
TextView Product_Price;
TextView Product_QTY;
ImageView addQTY;
ImageView lessQTY;
private ListViewAdapter myAdapter;
int Quantity = 1;
public DemoVH(#NonNull View itemView) {
super(itemView);
Product_Name = itemView.findViewById(R.id.ProductNameLbl);
Product_Barcode = itemView.findViewById(R.id.ProductBarcodeLbl);
Product_Price = itemView.findViewById(R.id.ProductPriceLbl);
Product_QTY = itemView.findViewById(R.id.QTYLbl);
addQTY = itemView.findViewById(R.id.AddQTYBtn);
lessQTY = itemView.findViewById(R.id.lessQTYBtn);
itemView.findViewById(R.id.RemoveBtn).setOnClickListener(view -> {
myAdapter.productList.remove(getAdapterPosition());
myAdapter.notifyItemRemoved(getAdapterPosition());
});
addQTY.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Quantity = Quantity+=1;
Product_QTY.setText(String.valueOf(Quantity));
}
});
lessQTY.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if(Quantity == 1){
Product_QTY.setText("1");
}else{
Quantity = Quantity-=1;
Product_QTY.setText(String.valueOf(Quantity));
}
}
});
}
public DemoVH linkadapter(ListViewAdapter adapter){
myAdapter = adapter;
return this;
}
}
You can take a global variable in recycler view adapter and keep adding the amount in that variable in onBindViewHolder().
And when any item is increased or decreased or removed you can add or decrease that amount from that global variable.
I've implemented a recyclerview with staggered gridLayout containing about 31 items in the arrayList, recyclerview is working correctly, but I faced issue relating to single item selection.
When I select the value till "26" as shown in figure, its working fine
But, when I select the value after "26", the values from top most item are also selected, as shown in this next figure.
I require to only select one item at a time.
I've implemented the following code in my adapter class
public class DialogAdapter extends
RecyclerView.Adapter<DialogAdapter.DialogHolder>
{
// components
public Context context;
public ArrayList<AlertDialogModel> dialogArrayList = new
ArrayList<AlertDialogModel>();
private final ArrayList<Integer> selected = new ArrayList<>();
private int lastCheckedPosition = -1;
public Interface interface;
// parameterized constructor
public DialogAdapter(Context context, ArrayList<AlertDialogModel>
dialogArrayList,Interface interface)
{
this.context = context;
this.dialogArrayList = dialogArrayList;
this.interface = interface;
}
#NonNull
#Override
public DialogHolder onCreateViewHolder(#NonNull ViewGroup parent, int
viewType)
{
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.custom_cardview,parent,false);
DialogHolder dialogHolder = new DialogHolder(view);
return dialogHolder;
}
#Override
public void onBindViewHolder(#NonNull final DialogHolder holder, final int position)
{
final AlertDialogModel alertDialogModel = dialogArrayList.get(position);
holder.textView.setText(alertDialogModel.getDisplayValue());
if(lastCheckedPosition == position)
{
holder.textView.setTextColor(context.getResources().getColor(R.color.white));
holder.textView.setBackground(context.getResources().getDrawable(R.drawable.circular_shape_selection));
}
else
{
}
holder.textView.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{
lastCheckedPosition = position;
notifyDataSetChanged();
holder.textView.setTextColor(context.getResources().getColor(R.color.white));
holder.textView.setBackground(context.getResources().getDrawable(R.drawable.circular_shape_selection));
interface.getSelectedValue(alertDialogModel.getDisplayValue());
}
});
}
#Override
public int getItemCount()
{
return dialogArrayList.size();
}
public static class DialogHolder extends RecyclerView.ViewHolder
{
public TextView textView;
public DialogHolder(View itemView)
{
super(itemView);
textView = (TextView)itemView.findViewById(R.id.textView);
}
}
}
Can anyone relate my code and identify the issue ?
holder.textView.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{
lastCheckedPosition = position;
notifyDataSetChanged();
holder.textView.setTextColor(context.getResources().getColor(R.color.white));
holder.textView.setBackground(context.getResources().getDrawable(R.drawable.circular_shape_selection));
interface.getSelectedValue(alertDialogModel.getDisplayValue());
//below line is important to remove previous selected position from the variable
lastCheckedPosition = -1;
}
});
you should put the text view to the original state:
if(lastCheckedPosition == position)
{
holder.textView.setTextColor(context.getResources().getColor(R.color.white));
holder.textView.setBackground(context.getResources().getDrawable(R.drawable.circular_shape_selection));
}
else
{
holder.textView.setTextColor(context.getResources().getColor(R.color.transparent));
holder.textView.setBackground(null));
}
The title seems confusing because I cannot explain this properly using text.
I'll try my best to explain my problem.
Currently I have items in my recyclerview :
Each item contains a delete button that will remove the item in the recyclerview.
Lets assume that I have 5 items in the list:
what I want to attain is when the user deletes
Item 2
the information/data from item 3 will be transferred to Item 2,
the data from item 4 will be transferred to item 3 and
the data from item 5 will be transferred to item 4
and lastly the item 5 will be deleted.
I currently have no code for this but I'm trying my best to construct it.
Here is my adapter code, it might help:
public class CreditCard_PostPayAdapter extends RecyclerView.Adapter<CreditCard_PostPayAdapter.MyViewHolder> {
private static String TAGedittext = "";
//private final AccountHistoryTransactionActivity homeActivity;
private Context mContext;
private ArrayList<Integer> mHeaderText;
CreditCard_PostPayAdapter adapter;
public CreditCard_PostPayAdapter(Context mContext, ArrayList<Integer> mHeaderTextList ) {
this.mContext = mContext;
this.mHeaderText = mHeaderTextList;
}
#Override
public CreditCard_PostPayAdapter.MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View itemView = LayoutInflater.from(parent.getContext())
.inflate(R.layout.creditcard_postpay_item, parent, false);
return new MyViewHolder(itemView);
}
#Override
public void onBindViewHolder(final CreditCard_PostPayAdapter.MyViewHolder holder, int position) {
final int pos = position + 1;
final int mPosition = position;
if (mHeaderText.size() == 1) {
holder.mDeleteButton.setVisibility(View.GONE);
} else {
holder.mDeleteButton.setVisibility(View.VISIBLE); }
holder.mDeleteButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
mHeaderText.remove(mPosition);
ArrayList<Integer> temp = new ArrayList<Integer>();
for (int i = 0 ; mHeaderText.size() - 1 >= i ; i++) {
temp.add(i);
Log.d("Counter++",""+i);
}
holder.mMerchantName.setText("");
holder.mTransactionAmountEditText.setText("");
holder.mTransactionDateEditText.setText("");
holder.mPostingDateEditText.setText("");
mHeaderText.clear();
mHeaderText.addAll(temp);
notifyDataSetChanged();
}
});
}
#Override
public int getItemCount() {
return mHeaderText.size();
}
public class MyViewHolder extends RecyclerView.ViewHolder {
public TextView mHeaderTitle
public ImageView mArrowHeader;
public ImageButton mDeleteButton;
public TextInputEditText mTransactionDateEditText,
mPostingDateEditText,
mTransactionAmountEditText;
public MyViewHolder(View view) {
super(view);
this.mHeaderTitle = (TextView) view.findViewById(R.id.header_title);
this.mDeleteButton = view.findViewById(R.id.mDeleteButton);
this.mMerchantName = view.findViewById(R.id.mMerchantNameTextView);
this.mTransactionDateEditText = view.findViewById(R.id.Transaction_date);
this.mPostingDateEditText = view.findViewById(R.id.posting_date);
this.mTransactionAmountEditText = view.findViewById(R.id.Transaction_amount);
}
}
}
My current delete button function is to:
Delete the item(n) and recount all of the remaining item.
Replace your onBindViewHolder method and try,
#Override
public void onBindViewHolder(final CreditCard_PostPayAdapter.MyViewHolder holder, int position) {
holder.mDeleteButton.setTag(position);
holder.mDeleteButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
int clickedPos = (int) view.getTag();
mHeaderText.remove(clickedPos);
notifyItemRemoved(position);
}
});
}
If you want to delete the 2nd element. delete the element and remaining will be taken care by recyclerAdapter to remove the row and align the data.
inside your onClickListener, remove the data from ArrayList and the call notifyItemRemoved()
write your onClick inside ViewHolder class
onClick(View view){
mHeaderText.remove(getAdapterPosition());
notifyItemRemoved(getAdapterPosition());
}
i hope this will help you..
you an delete the item in list and refresh your adapter by just doing this in your onClick:
holder.mDeleteButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
mHeaderText.remove(position);
notifyItemRemoved(position);
notifyItemRangeChanged(position, mHeaderText.size());
}
});
I have google maps and cluster data, when i click to some cluster then is showing horizontal recyclerview. I have imageButton which is next or previous button in CardView, when i click it then cardView are scroll to next position. It works perfect, but i have one problem. My first cardView and the last CardView should'nt have this image button so I try set Visibility to Gone like this:
private void nextImageButtonAction(final ViewHolder holder, final int position, MyClusterMarkerMapItem cluster){
if(position == clusterDataList.size()-1){
Log.i("position", "position: " + position + " visibility GONE for next");
holder.nextImageButton.setVisibility(View.GONE);
}else {
holder.nextImageButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
int currentPosition = position;
currentPosition = currentPosition + 1;
// Log.i("pos", "currpos " + position + " nextPos " + currentPosition);
recyclerView.smoothScrollToPosition(currentPosition++);
}
});
}
}
private void previousImageButtonAction(final ViewHolder holder, final int position, MyClusterMarkerMapItem cluster) {
if (position == 0) {
Log.i("position", "position: " + position + " visibility GONE for prev");
holder.previousImageButton.setVisibility(View.GONE);
} else {
holder.previousImageButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
int currentPosition = position;
currentPosition = currentPosition - 1;
//Log.i("pos", "currpos " + position + " nextPos " + currentPosition);
recyclerView.smoothScrollToPosition(currentPosition++);
}
});
}
}
I run this method in :
public void onBindViewHolder(final ViewHolder holder, final int position) {..My Method}
But the imageButton disappear in first cardView but also in the cardView which isn't first or last, and the last cardview doesn't have prev and next image button but should have prev image button.
So how can I have next and prev image button in all cardView instead in first should have only next and the last should have only prev
My Adapter and more:
public class ClusterInfoWindow extends Fragment {
private MyClusterMarkerMapItem clusterData;
private List<MyClusterMarkerMapItem> clusterDataList;
public void setClusterData(MyClusterMarkerMapItem clusterData) {
clusterDataList = new ArrayList<>();
this.clusterData = clusterData;
}
public void setClusterDataList(List<MyClusterMarkerMapItem> clusterDataList) {
this.clusterDataList = new ArrayList<>(clusterDataList);
}
private RecyclerView recyclerView;
private RecyclerView.Adapter adapterRecyclerView;
private RecyclerView.LayoutManager layoutManager;
private View rootView;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
rootView = inflater.inflate(R.layout.fragment_info_window_marker_map, container, false);
setUpCardView(rootView);
return rootView;
}
private void setUpCardView(View rootView){
recyclerView = rootView.findViewById(R.id.recyclerViewInfoWindowMarker);
layoutManager = new LinearLayoutManager(rootView.getContext(),LinearLayoutManager.HORIZONTAL,false); //horizontal
recyclerView.setLayoutManager(layoutManager);
recyclerView.setHasFixedSize(true);
adapterRecyclerView = new AdapterRecyclerView(getActivity());
recyclerView.setAdapter(adapterRecyclerView);
}
class AdapterRecyclerView extends RecyclerView.Adapter<AdapterRecyclerView.ViewHolder> {
private Context context;
public AdapterRecyclerView(Context context){
this.context = context;
}
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.card_view_for_info_window_map,parent,false);
ViewHolder viewHolder = new ViewHolder(view);
return viewHolder;
}
#Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
//some function, some i put above in this post
}
#Override
public int getItemCount() {
int itemCount = 0;
if (clusterDataList.size() == 0)
itemCount = 1;
else if(clusterDataList.size() > 0 )
itemCount = clusterDataList.size();
return itemCount;
}
public class ViewHolder extends RecyclerView.ViewHolder{
private ImageButton nextImageButton;
private ImageButton previousImageButton;
public ViewHolder(View itemView) {
super(itemView);
nextImageButton = itemView.findViewById(R.id.cardViewNext);
previousImageButton = itemView.findViewById(R.id.cardVievPrevious);
}
}
}
}
Just add holder.nextImageButton.setVisibility(View.VISIBLE); into else statement
WHY?:
Because RecyclerView is reusing views. Once the view is out of the screen from top, it is moved to the bottom to represent the next list item. And since you have hidden the button in it, it won't automatically show it, you need to do that manually.
I have a RecyclerView list of CardView items. I then use a simple filter method with a SearchView widget to filter the list. When I then click on a filtered CardView to launch a CardViewDetails Activity, the UI is showing the CardView from the original List and not the filtered List. For example, I have a list of twenty items in the original List. When I enter a search constraint the filtered List correctly shows three CardViews in the RecyclerView. When I click on the third CardView in the List, the UI returns the third CardView from the original List and not the third CardView from the filtered List. What am I missing here?
Adapter:
public class MyRecylerAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private List<ListItem> mListItems, filteredList;
Context mContext;
private RecyclerItemClickListener recyclerItemClickListener;
private RecyclerView mRecyclerView;
/**********************************************************/
private String searchString = "";
/**********************************************************/
public MyRecylerAdapter(Context context, List<ListItem> listItems) {
this.mContext = context;
this.mListItems = listItems;
this.filteredList = new ArrayList<>();
this.filteredList.addAll(this.mListItems);
}
// RecyclerItemClickListener is the public interface file used to reach the MainActivity
public void setOnItemClickListener(RecyclerItemClickListener recyclerItemClickListener) {
this.recyclerItemClickListener = recyclerItemClickListener;
}
// Get the Item's position.
public ListItem getItem(int position) {
return filteredList.get(position);
}
#Override
public int getItemCount() {
if (filteredList.size() >0) {
return filteredList.size();
}
else {
return mListItems.size();
}
}
public void setFilter(List<ListItem> listItems, String searchString) {
// Note: the String is to get s.toString() from the Main Activity SearchView.
filteredList = new ArrayList<>();
filteredList.addAll(listItems);
this.searchString = searchString;
notifyDataSetChanged();
}
#Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_contact_item, parent, false);
final ItemHolder itemHolder = new ItemHolder(view);
// Attach a Click listener to the items's (row) view.
// itemView is from the ItemHolder() below.
// onItemClick is the click method in MainActivity.
itemHolder.itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
int adapterPos = itemHolder.getAdapterPosition(); // get the item position.
if (adapterPos != RecyclerView.NO_POSITION) {
if (recyclerItemClickListener != null) {
// pass the item to the Main Activity
// through the RecyclerItemClickListener file and its
// public interface.
recyclerItemClickListener.onItemClick(itemHolder.itemView,adapterPos);
}
}
}
});
return itemHolder;
}
private static class ItemHolder extends RecyclerView.ViewHolder {
private TextView cardBlankText2;
private ItemHolder(View itemView) {
super(itemView);
cardBlankText2 = (TextView) itemView.findViewById(R.id.cardBlankText2);
}
public void onBindViewHolder(final RecyclerView.ViewHolder holder, int position) {
final ListItem listItem = filteredList.get(position);
final ItemHolder itemHolder = (ItemHolder) holder;
itemHolder.cardBlankText2.setText(listItem.getTodo());
}
Activity:
public class MainActivity extends AppCompatActivity implements
RecyclerItemClickListener {
private List<ListItem> allList = new ArrayList<>();
private RecyclerView mRecyclerView;
private SQLiteDB sqLiteDB;
private MyRecylerAdapter adapter;
private CardView cardview;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
sqLiteDB = SQLiteDB.getInstance(this);
mRecyclerView = (RecyclerView)findViewById(R.id.list_recyclerview);
final LinearLayoutManager layoutManager = new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false);
mRecyclerView.setLayoutManager(layoutManager);
allList = sqLiteDB.getAllDBItems();
adapter = new MyRecylerAdapter(this, allList);
adapter.setOnItemClickListener(this);
mRecyclerView.setAdapter(adapter);
}
#Override
public void onItemClick(View view, int position) {
cardview = (CardView) view;
cardview.setEnabled(false);
// Create a new intent to send data from this MainActivity to the CardViewDetails
// Activity.
Intent intent = new Intent(this,CardViewDetails.class);
ListItem listItem = adapter.getItem(position);
// Add the item object to the Intent. The item object can be used because the
// model class implements Parcelable so it holds all of the getters
// that can be snagged in the next Activity with the
// getParcelableExtra method.
intent.putExtra("item",listItem);
intent.putExtra("position",position);
startActivity(intent);
finish();
}
// SearchView
final EditText mSearchEditText = (EditText) mSearchView.findViewById(android.support.v7.appcompat.R.id.search_src_text);
mSearchEditText.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
#Override
public void afterTextChanged(Editable s) {
final ArrayList<ListItem> filteredModelList = filter(allList, s.toString());
if (!mSearchView.isIconified() && filteredModelList.size() == 0) {
Toast.makeText(MainActivity.this, "Not Found", Toast.LENGTH_SHORT).show();
// re-load the list so the Adapter refreshes the RecyclerView list View.
adapter.clear();
adapter.addAll(allList);
} else if (!mSearchView.isIconified() && filteredModelList.size() > 0) {
adapter.setFilter(filteredModelList, s.toString());
mRecyclerView.scrollToPosition(0);
}
}
}
});
private ArrayList<ListItem> filter(List<ListItem> models, String query) {
query = query.toLowerCase();
final ArrayList<ListItem> filteredModelList = new ArrayList<>();
for (ListItem listItem : models) {
final String text = listItem.getTodo().toLowerCase();
final String text2 = listItem.getNote1().toLowerCase();
final String text3 = listItem.getNote2().toLowerCase();
if (text.contains(query) || text2.contains(query) ||
text3.contains(query)) {
filteredModelList.add(listItem);
}
}
return filteredModelList;
}
RecyclerItemClickListener:
public interface RecyclerItemClickListener {
void onItemClick(View view, int position);
}
CardViewDetails:
public class CardViewDetails extends AppCompatActivity {
private int position;
private SQLiteDB helper;
List<ListItem> listItems;
private CardView cardview;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_details);
final CardView cardView = (CardView) findViewById(R.id.dets);
// Create a variable for the skychill footer text.
final TextView skychilltext5;
// A db helper instance is needed for the removeItem() below
// when the user Longclicks the skycard for deletion.
helper = new SQLiteDB(this);
// Get the position of the clicked on R. list CardView from
// the MainActivity's intent bundle.
Bundle extras = getIntent().getExtras();
if (extras != null) {
// get the CardView item using the int position from the
// MainActivity's onItemClick() and the putExtra in the intent.
position = extras.getInt("position",0); // 0 is default value
}
cb2 = (TextView) findViewById(R.id.cb2);
helper = new SQLiteDB(this);
listItems = new ArrayList<>();
listItems = helper.getAllDBItems();
cb2.setText(listItems.get(position).getTodo());
...
}
After applying filter the sql DB (getAllDBItems ) data remain same. You are passing only position to CardViewDetail. And the sql data is of original list.
You should pass your ListItem as parcelable to CardViewDetails instead of position. your problem will be solved.