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Nested ArrayList in Android

I want to create a cart which has Nested array.
Like my parent array has items and child array has item's respective toppings but when i add toppings to my item array it automatically add same toppings to all index of items array. Here is my image:
Here i'm attaching my code below
Item_Array
private void addNewToppinDialoge(ProductsModel.Datum datum, int adapterPosition) {
ProductOrderModel.Datum productOrderModel = new ProductOrderModel.Datum();
productOrderModel.setCategoryID(datum.getProductID());
productOrderModel.setCategory(datum.getProductName());
int i = productActivity.productOrderModelArrayList.size();
int j = i + 1;
productOrderModel.setSrNO(String.valueOf(j));
productActivity.productOrderModelArrayList.add(productOrderModel);
productActivity.refreshOrderAdapter();
productActivity.changeTitleToolbar(datum.getProductName());
}
Toppings_array
private void addToppingToCart(ToppingsModel.Datum.LookupValue lookupValue, int adapterPosition) {
ProductOrderModel.Datum datum = new ProductOrderModel.Datum();
ProductOrderModel.Datum.SubCategory subCategory = new ProductOrderModel.Datum.SubCategory();
subCategory.setCategory(lookupValue.getLookupvalue());
int pos = productActivity.productOrderModelArrayList.size() - 1;
Log.e("POS", String.valueOf(ProductActivity.productOrderModelArrayList.size() - 1));
productActivity.productOrderModelArrayListSub.add(subCategory);
int subPos = productActivity.productOrderModelArrayListSub.size() - 1;
productActivity.productOrderModelArrayListSub.get(subPos).setCategory(lookupValue.getLookupvalue());
productActivity.productOrderModelArrayList.get(pos).setSubCategory(productActivity.productOrderModelArrayListSub);
productActivity.refreshOrderAdapter();
}
Adapter For Cart
public class MyOrderAdapter extends RecyclerView.Adapter<MyOrderAdapter.ViewHolder> {
public static ToppingsListAdapter toppingsListAdapter;
static Context mContext;
ArrayList<ProductOrderModel.Datum> orderModelArrayList;
public MyOrderAdapter(Context mContext, ArrayList<ProductOrderModel.Datum> orderModelArrayList) {
MyOrderAdapter.mContext = mContext;
this.orderModelArrayList = orderModelArrayList;
}
#NonNull
#Override
public MyOrderAdapter.ViewHolder onCreateViewHolder(#NonNull ViewGroup viewGroup, int i) {
View mView = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.myorder_layout, viewGroup, false);
return new MyOrderAdapter.ViewHolder(mView);
}
#Override
public void onBindViewHolder(#NonNull MyOrderAdapter.ViewHolder holder, int i) {
holder.mTextOrderName.setText(orderModelArrayList.get(i).getCategory());
holder.mImageRemove.setOnClickListener(v -> removeItem(orderModelArrayList.get(i), holder.getAdapterPosition()));
holder.mTextSerialNo.setText(orderModelArrayList.get(i).getSrNO() + ".");
ArrayList<ProductOrderModel.Datum.SubCategory> arrayItem = (ArrayList<ProductOrderModel.Datum.SubCategory>) orderModelArrayList.get(i).getSubCategory();
if (arrayItem == null) {
} else {
toppingsListAdapter = new ToppingsListAdapter(mContext, arrayItem);
holder.mRecyclerToppings.setAdapter(toppingsListAdapter);
}
}
protected void removeItem(ProductOrderModel.Datum productOrderModel, int adapterPosition) {
}
#Override
public int getItemCount() {
return orderModelArrayList.size();
}
public void refreshAdapter() {
toppingsListAdapter.notifyDataSetChanged();
}
public static class ViewHolder extends RecyclerView.ViewHolder {
public RecyclerView mRecyclerToppings;
private TextView mTextOrderName, mTextSerialNo;
private ImageView mImageRemove;
public ViewHolder(#NonNull View itemView) {
super(itemView);
mTextOrderName = itemView.findViewById(R.id.orderItemName);
mImageRemove = itemView.findViewById(R.id.orderRemove);
mTextSerialNo = itemView.findViewById(R.id.srno);
mRecyclerToppings = itemView.findViewById(R.id.text_toppings);
RecyclerView.LayoutManager manager = new LinearLayoutManager(mContext, LinearLayout.VERTICAL, false);
mRecyclerToppings.setLayoutManager(manager);
}
public int getAdapterPosition(ProductOrderModel.Datum.SubCategory remove) {
return 0;
}
}
}
strong text:

I guess you need to header and footer of RecyclerView. Here is the code.
Try this one:
public class HeaderAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private static final int TYPE_HEADER = 0;
private static final int TYPE_ITEM = 1;
String[] data;
public HeaderAdapter(String[] data) {
this.data = data;
}
#Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
if (viewType == TYPE_ITEM) {
//inflate your layout and pass it to view holder
return new VHItem(null);
} else if (viewType == TYPE_HEADER) {
//inflate your layout and pass it to view holder
return new VHHeader(null);
}
throw new RuntimeException("there is no type that matches the type " + viewType + " + make sure your using types correctly");
}
#Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
if (holder instanceof VHItem) {
String dataItem = getItem(position);
//cast holder to VHItem and set data
} else if (holder instanceof VHHeader) {
//cast holder to VHHeader and set data for header.
}
}
#Override
public int getItemCount() {
return data.length + 1;
}
#Override
public int getItemViewType(int position) {
if (isPositionHeader(position))
return TYPE_HEADER;
return TYPE_ITEM;
}
private boolean isPositionHeader(int position) {
return position == 0;
}
private String getItem(int position) {
return data[position - 1];
}
class VHItem extends RecyclerView.ViewHolder {
TextView title;
public VHItem(View itemView) {
super(itemView);
}
}
class VHHeader extends RecyclerView.ViewHolder {
Button button;
public VHHeader(View itemView) {
super(itemView);
}
}
}

Multiple type of views in Recycler View not setting correctly

I have two array list and want to set the adapter so that it looks like below screen one. But when I am setting adapter I am getting view like second screen. This is my code of Adapter:
public class ItemArrayAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
final int VIEW_TYPE_MESSAGE = 0;
final int VIEW_TYPE_IMAGE = 1;
private static final String TAG = "ItemArrayAdapter";
Context context;
ArrayList<BeforLoginDao.Article> mArticleList;
ArrayList<BeforLoginDao.Quiz> mQuizList;
int i=0;
public ItemArrayAdapter(Context context,ArrayList<BeforLoginDao.Quiz> mQuizList, ArrayList<BeforLoginDao.Article> mArticleList ){
this.context = context;
this.mArticleList = mArticleList;
this.mQuizList = mQuizList;
}
#Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType){
View itemView;
if(viewType == VIEW_TYPE_MESSAGE){
itemView= LayoutInflater.from(parent.getContext()).inflate(R.layout.article_layout,parent,false);
return new ArticleViewHolder(itemView);
}
else if(viewType == VIEW_TYPE_IMAGE){
itemView= LayoutInflater.from(parent.getContext()).inflate(R.layout.quiz,parent,false);
return new QuizViewHolder(itemView);
}
return null;
}
#Override
public void onBindViewHolder(RecyclerView.ViewHolder viewHolder, int position){
Log.e(TAG, "onBindViewHolder: " +position);
if(viewHolder instanceof ArticleViewHolder){
((ArticleViewHolder) viewHolder).populate(mArticleList.get(position));
}
else if(viewHolder instanceof QuizViewHolder){
((QuizViewHolder) viewHolder).populate(mQuizList.get(position - mArticleList.size()));
}
}
#Override
public int getItemCount(){
return mArticleList.size() + mQuizList.size();
}
#Override
public int getItemViewType(int position){
Log.e(TAG, "getItemViewType: " +position );
if(position < mArticleList.size()){
return VIEW_TYPE_MESSAGE;
}
if(position - mArticleList.size() < mQuizList.size()){
return VIEW_TYPE_IMAGE;
}
return -1;
}
public class ArticleViewHolder extends RecyclerView.ViewHolder {
public TextView mTitle, mTag1, mTag2 ;
ImageView mImageView;
public ArticleViewHolder(View itemView) {
super(itemView);
mTitle = itemView.findViewById(R.id.tv_article_title);
mTag1 = itemView.findViewById(R.id.tv_article_tag1);
mTag2 = itemView.findViewById(R.id.tv_article_tag2);
mImageView=itemView.findViewById(R.id.img_article);
}
public void populate(BeforLoginDao.Article chatWrapper){
mTitle.setText(chatWrapper.articleTitle.toString());
mTag1.setText(chatWrapper.subtag1);
mTag2.setText(chatWrapper.subtag2);
}
}
public class QuizViewHolder extends RecyclerView.ViewHolder {
public TextView tvQuizTitle, tvQuizTag1, tvQuizTag2 ;
public QuizViewHolder(View itemView) {
super(itemView);
tvQuizTitle = itemView.findViewById(R.id.tv_quiz_title);
tvQuizTag1 =itemView.findViewById(R.id.tv_quiz_tag1);
tvQuizTag2=itemView.findViewWithTag(R.id.tv_quiz_tag2);
}
public void populate(BeforLoginDao.Quiz imageDataWrapper){
Log.e(TAG, "ViewHolderTwo: " +imageDataWrapper.toString() );
tvQuizTitle.setText(imageDataWrapper.quizTitle);
tvQuizTag1.setText(imageDataWrapper.quiz_subtag1);
}
}
}
To solve this error I also checked many solution on SO.
Ref: enter link description here
Below is screen one and screen two. Screen one that I need, Screen two that I am getting.

Recyclerview holder mixes on scroll

When scroll recyclerview some items mixes. After I add ads after every 15 items, holder get wrong data. Some items are vip items. I will change background color of these items. But when I scroll it dublicates mixes. How can I solve?
This is my adapter
private Context mCtx;
private List<Car> carList;
private RecyclerViewAnimator mAnimator;
private int AD_TYPE=1;
private int CONTENT_TYPE=2;
private int LIST_AD_DELTA=15;
public ProductAllCarAdapter(RecyclerView recyclerView,Context mCtx, List<Car> carList) {
this.mCtx = mCtx;
this.carList = carList;
mAnimator = new RecyclerViewAnimator(recyclerView);
}
#Override
public ProductAllCarAdapter.ProductViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
if(viewType == AD_TYPE){
View itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.product_add_item, null);
ProductAllCarAdapter.ProductViewHolder vh = new ProductAllCarAdapter.ProductViewHolder(itemView);
mAnimator.onCreateViewHolder(itemView);
return vh;
} else {
View itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.product_car_item, null);
ProductAllCarAdapter.ProductViewHolder vh = new ProductAllCarAdapter.ProductViewHolder(itemView);
mAnimator.onCreateViewHolder(itemView);
return vh;
}
}
#Override
public int getItemViewType(int position) {
if (position>0 && position % LIST_AD_DELTA == 0)
return AD_TYPE;
return CONTENT_TYPE;
}
#Override
public void onBindViewHolder(ProductAllCarAdapter.ProductViewHolder holder, int position) {
if (getItemViewType(position) == CONTENT_TYPE) {
final Car car = carList.get(holder.getAdapterPosition());
GlideApp.with(mCtx).load(car.getImg()).into(holder.imageView);
if (car.getVip() == 1) {
holder.relativeLayout.setBackgroundColor(ContextCompat.getColor(mCtx, R.color.colorVip));
holder.imageViewVIP.setVisibility(View.VISIBLE);
}
final String carid = String.valueOf(car.getCarid());
mAnimator.onBindViewHolder(holder.itemView, position);
} else {
holder.mView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Context mcontext = view.getContext();
Bundle bundle = ActivityOptionsCompat.makeCustomAnimation(mcontext, android.R.anim.fade_in, android.R.anim.fade_out).toBundle();
Intent intent = new Intent(mcontext, AdsItem.class);
mcontext.startActivity(intent, bundle);
}
});
mAnimator.onBindViewHolder(holder.itemView, position);
}
}
private int getRealPosition(int position) {
if (LIST_AD_DELTA == 0) {
return position;
} else {
return position - position / LIST_AD_DELTA;
}
}
#Override
public long getItemId(int position) { return position; }
#Override
public int getItemCount() {
int additionalContent = 0;
if (carList.size() > 0 && carList.size() > LIST_AD_DELTA) {
additionalContent = ( carList.size() / LIST_AD_DELTA);
}
return carList.size() + additionalContent;
}
public static class ProductViewHolder extends RecyclerView.ViewHolder {
private View mView;
ImageView imageView, imageViewVIP;
RelativeLayout relativeLayout;
public ProductViewHolder(View itemView) {
super(itemView);
mView = itemView;
imageView = itemView.findViewById(R.id.imageView);
imageViewVIP = itemView.findViewById(R.id.imageViewVIP);
relativeLayout = itemView.findViewById(R.id.relativeLayoutpc);
}
public void setOnClickListener(View.OnClickListener listener) {
mView.setOnClickListener(listener);
}
}
I think problem onBindViewHolder function use wrong holder. ArrayList also return true value but on scroll it mixes.

You just have to add the corresponding else of the following if statement block.
if (car.getVip() == 1) {
holder.relativeLayout.setBackgroundColor(ContextCompat.getColor(mCtx, R.color.colorVip));
holder.imageViewVIP.setVisibility(View.VISIBLE);
} else {
holder.relativeLayout.setBackgroundColor(ContextCompat.getColor(mCtx, R.color.colorNormal));
holder.imageViewVIP.setVisibility(View.GONE);
}
This is inside your onBindViewHolder function where the view type is CONTENT_TYPE.
Hope that solves your problem.

Recycler View linear layout manager returning null

I have a recycler view which contains multiple items and each item in the recycler view contains a horizontal recycler view.The problem I am encountering is that the layout manager is null.
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.widget.RecyclerView.setLayoutManager(android.support.v7.widget.RecyclerView$LayoutManager)' on a null object reference
This is my code so far.I have checked that the data I am receiving is intact.
RecipeAdapter ( The main adapter )
public class RecipeAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private Context context;
private List<Object> items;
private final int RECIPE = 0, JOKE = 1;
public RecipeAdapter(Context context) {
this.context = context;
this.items = new ArrayList<>();
}
public void setItems(List<Object> items) {
this.items = items;
}
public void add(Object object) {
items.add(object);
notifyItemInserted(items.size());
}
#Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
RecyclerView.ViewHolder viewHolder;
final LayoutInflater inflater = LayoutInflater.from(parent.getContext());
switch (viewType) {
case RECIPE:
View recipe = inflater.inflate(R.layout.item_recipe, parent, false);
viewHolder = new ViewHolder_Recipe(recipe);
break;
case JOKE:
View joke = inflater.inflate(R.layout.item_joke, parent, false);
viewHolder = new ViewHolder_Joke(joke);
break;
default:
View recipe_default = inflater.inflate(R.layout.item_recipe, parent, false);
viewHolder = new ViewHolder_Recipe(recipe_default);
break;
}
return viewHolder;
}
#Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
switch (holder.getItemViewType()) {
case RECIPE:
ViewHolder_Recipe viewHolderRecipe = (ViewHolder_Recipe) holder;
configureRecipeHolder(viewHolderRecipe, position);
break;
case JOKE:
ViewHolder_Joke viewHolderJoke = (ViewHolder_Joke) holder;
configureJokeHolder(viewHolderJoke, position);
break;
default:
ViewHolder_Recipe viewHolder_recipe_default = (ViewHolder_Recipe) holder;
configureRecipeHolder(viewHolder_recipe_default, position);
break;
}
}
private void configureJokeHolder(ViewHolder_Joke viewHolderJoke, int position) {
}
private void configureRecipeHolder(ViewHolder_Recipe viewHolderRecipe, int position) {
RecipeDetailed recipe = (RecipeDetailed) items.get(position);
Glide.with(context)
.load(recipe.getImage())
.into(viewHolderRecipe.getRecipe_image());
viewHolderRecipe.getRecipe_name().setText(recipe.getTitle());
viewHolderRecipe.getRecipe_prep().setText(recipe.getReadyInMinutes());
viewHolderRecipe.getRecipe_serves().setText(recipe.getServings());
viewHolderRecipe.getIngredientAdapter().setIngredients(recipe.getExtendedIngredients());
}
#Override
public int getItemViewType(int position) {
if (items.get(position) instanceof RecipeDetailed) {
return RECIPE;
} else if (items.get(position) instanceof Joke) {
return JOKE;
}
return super.getItemViewType(position);
}
#Override
public int getItemCount() {
return items.size();
}
}
The ViewHolder for that Adapter -- ViewHolder_Recipe
public class ViewHolder_Recipe extends RecyclerView.ViewHolder {
private CircularImageView recipe_image;
private TextView recipe_name;
private TextView recipe_prep;
private TextView recipe_serves;
private RecyclerView recyclerView;
private RecipeIngredientAdapter ingredientAdapter;
public ViewHolder_Recipe(View itemView) {
super(itemView);
recipe_image = (CircularImageView) itemView.findViewById(R.id.recipe_image);
recipe_name = (TextView) itemView.findViewById(R.id.recipe_name);
recipe_prep = (TextView) itemView.findViewById(R.id.recipe_prep);
recipe_serves = (TextView) itemView.findViewById(R.id.recipe_serves);
recyclerView = (RecyclerView) itemView.findViewById(R.id.recyclerView);
ingredientAdapter = new RecipeIngredientAdapter(itemView.getContext());
recyclerView.setLayoutManager(new LinearLayoutManager(itemView.getContext()
, LinearLayoutManager.HORIZONTAL, false));
recyclerView.setAdapter(ingredientAdapter);
}
public RecipeIngredientAdapter getIngredientAdapter() {
return ingredientAdapter;
}
public CircularImageView getRecipe_image() {
return recipe_image;
}
public TextView getRecipe_name() {
return recipe_name;
}
public TextView getRecipe_prep() {
return recipe_prep;
}
public TextView getRecipe_serves() {
return recipe_serves;
}
public RecyclerView getRecyclerView() {
return recyclerView;
}
}
The child adapter -- RecipeIngredientAdapter
public class RecipeIngredientAdapter extends RecyclerView.Adapter<ViewHolderRecipeIngredient> {
private Context context;
private ArrayList<Ingredient> ingredients;
public RecipeIngredientAdapter(Context context) {
this.context = context;
}
public void setIngredients(ArrayList<Ingredient> ingredients) {
this.ingredients = ingredients;
}
#Override
public ViewHolderRecipeIngredient onCreateViewHolder(ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
View view = inflater.inflate(R.layout.item_recipe_ingredients, parent, false);
return new ViewHolderRecipeIngredient(view);
}
#Override
public void onBindViewHolder(ViewHolderRecipeIngredient holder, int position) {
final Ingredient ingredient = ingredients.get(position);
Glide.with(context)
.load(ingredient.getImage())
.into(holder.getIngredient_image());
}
#Override
public int getItemCount() {
return 0;
}
}
The viewholder for that is a simple viewholder which contains an image.
I have seen posts online which seem to do the exact same thing and get it working,what exactly am i missing here?

From the error, it sounds like the RecyclerView is null, not the LayoutManager. Make sure you are using the proper id from the layout. are you sure the proper layout id of the RecyclerView is R.id.recyclerView?

Android. Java. RecyclerAdapter

I have two different card view in one layout. I need that The latest news is added to one card view, and the rest in another. For exapmle, on image
MyRecyclerAdapter code
public class MyRecyclerAdapter extends RecyclerView.Adapter<MyRecyclerAdapter.CustomViewHolder> {
private List<FeedItem> feedItemList;
private Context mContext;
public MyRecyclerAdapter(Context context, List<FeedItem> feedItemList) {
this.feedItemList = feedItemList;
this.mContext = context;
}
#Override
public CustomViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.list_row, null);
CustomViewHolder viewHolder = new CustomViewHolder(view);
return viewHolder;
}
#Override
public void onBindViewHolder(CustomViewHolder customViewHolder, int i) {
FeedItem feedItem = feedItemList.get(i);
//Download image using picasso library
Picasso.with(mContext).load(feedItem.getThumbnail())
.error(R.drawable.placeholder)
.placeholder(R.drawable.placeholder)
.into(customViewHolder.imageView);
//Setting text view title
customViewHolder.textView.setText(Html.fromHtml(feedItem.getTitle()));
View.OnClickListener clickListener = new View.OnClickListener() {
#Override
public void onClick(View view) {
CustomViewHolder holder = (CustomViewHolder) view.getTag();
int position = holder.getPosition();
FeedItem feedItem = feedItemList.get(position);
Toast.makeText(mContext, feedItem.getTitle(), Toast.LENGTH_SHORT).show();
}
};
//Handle click event on both title and image click
customViewHolder.textView.setOnClickListener(clickListener);
customViewHolder.imageView.setOnClickListener(clickListener);
customViewHolder.textView.setTag(customViewHolder);
customViewHolder.imageView.setTag(customViewHolder);
}
#Override
public int getItemCount() {
return (null != feedItemList ? feedItemList.size() : 0);
}
public class CustomViewHolder extends RecyclerView.ViewHolder {
protected ImageView imageView;
protected TextView textView;
public CustomViewHolder(View view) {
super(view);
this.imageView = (ImageView) view.findViewById(R.id.thumbnail);
this.textView = (TextView) view.findViewById(R.id.title);
}
}
}

The approach I would use if I were in you, to accomplish what you posted in the picture is to override getItemViewType and have two different types of ViewHolder, once for the header, the one with the big image and the other adapter for the small rows. onBindViewHolder gets the type as parameter. In your case is int i.

I write a quickdemo like this:
private class MyCustomAdapter extends BaseAdapter {
private static final int TYPE_ITEM = 0;
private static final int TYPE_SEPARATOR = 1;
private static final int TYPE_MAX_COUNT = TYPE_SEPARATOR + 1;
private ArrayList mData = new ArrayList();
private LayoutInflater mInflater;
private TreeSet mSeparatorSet = new TreeSet();
public MyCustomAdapter() {
mInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public void addItem(String item) {
mData.add(item);
notifyDataSetChanged();
}
public void addSeparator(String item) {
mData.add(item);
mSeparatorSet.add(mData.size() - 1);
notifyDataSetChanged();
}
#Override
public int getItemViewType(int position) {
return mSeparatorSet.contains(position) ? TYPE_SEPARATOR : TYPE_ITEM;
}
#Override
public int getViewTypeCount() {
return TYPE_MAX_COUNT;
}
#Override
public int getCount() {
return mData.size();
}
#Override
public Object getItem(int position) {
return mData.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
int type = getItemViewType(position);
System.out.println("getView " + position + " " + convertView + "type " + type);
ViewHolder holder = null;
if (convertView == null) {
holder = new ViewHolder();
switch (type) {
case TYPE_ITEM:
convertView = mInflater.inflate(R.layout.item1, null);
holder.textView = (TextView) convertView.findViewById(R.id.text_view);
break;
case TYPE_SEPARATOR:
convertView = mInflater.inflate(R.layout.item2, null);
holder.textView = (TextView) convertView.findViewById(R.id.textSeparator);
break;
}
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.textView.setText(mData.get(position) + "");
return convertView;
}
}
public static class ViewHolder {
public TextView textView;
}
or if you want to use header and footer, create headerView layout:
View header = (View) getLayoutInflater().inflate(R.layout.headerView,null);
listView.addHeaderView(header);