抱歉,问题标题不好,我不知道如何命名此功能
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我有2个回收视图,第一个包含食物列表第二个包含食物类别列表
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每一个食物清单项目都有它的类别名称
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食物列表可垂直滚动,食物类别列表可水平滚动。
我的问题是,
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当我刷新食品回收器视图时,类别回收器会为每次刷新逐个查看突出显示的项目。
这是图像
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当我滚动食品回收查看类别项目自动需要突出显示,就像我如何点击类别项目。
我附上了一个视频剪辑正是我所期待的。
Here is the video
非常感谢。
This is my Foods class
FoodMenuFragment.java
)
public class FoodMenuFragment extends Fragment implements View.OnClickListener {
private OnFragmentInteractionListener mListener;
Typeface fontSemiBold;
private static View view;
private static RecyclerView listRecyclerView;
private List<String> listCategoryName = new ArrayList<>();
public static List<MenuFoods> foodListCategory = new ArrayList<>();
private static List<MenuFoodsCategory> listArrayList = new ArrayList<>();
public static foodsAdapter adapterFoods;
private boolean userScrolled = true;
int pastVisiblesItems, visibleItemCount, totalItemCount;
private String udToken = "", restId = "";
SessionManager session;
TwoWayView listCategory;
private static LinearLayoutManager mLayoutManager;
private RecyclerView recyCategory;
private int selectedPosition = -1;
LinearLayoutManager layoutManager;
private SwipeRefreshLayout swipeRefreshLayout;
LinearLayout lineNoOffer, lineServerError;
TextView tvServerError;
private Dialog progressDialog;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
// Inflate the layout for this fragment
view = inflater.inflate(R.layout.fragment_food_menu, container, false);
session = new SessionManager(getApplicationContext());
swipeRefreshLayout = view.findViewById(R.id.swipe_refresh);
lineNoOffer = view.findViewById(R.id.lineNoOffer);
listCategory = view.findViewById(R.id.listCategory);
//Initialize category horizontal view
recyCategory = view.findViewById(R.id.recyCategory);
recyCategory.setHasFixedSize(true);
layoutManager = new LinearLayoutManager(getContext(), LinearLayoutManager.HORIZONTAL, false);
recyCategory.setLayoutManager(layoutManager);
recyCategory.swapAdapter(new categoryAdapterNew(getApplicationContext(), listCategoryName), true);
if (isAdded()) {
init();
listArrayList.clear();
listCategoryName.clear();
foodListCategory.clear();
getFood();
}
swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
@Override
public void onRefresh() {
if (isAdded()) {
listArrayList.clear();
listCategoryName.clear();
foodListCategory.clear();
getFood();
}
swipeRefreshLayout.setRefreshing(false);
}
});
listCategory.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//Toast.makeText(getContext(), "click"+String.valueOf(position), Toast.LENGTH_SHORT).show();
String tmpCatego = "", tmpCategoId = "";
// for (int i = 0; i < listCategoryName.size(); i++){
tmpCatego = listCategoryName.get(position);
// }
for (int j = 0; j < listArrayList.size(); j++) {
if (tmpCatego.trim().toLowerCase().equals(listArrayList.get(j).getCategoryName().trim().toLowerCase())) {
tmpCategoId = listArrayList.get(j).getCategoryId();
break;
}
}
for (int i = 0; i < foodListCategory.size(); i++) {
if (tmpCategoId.equals(foodListCategory.get(i).getCategoryId())) {
listRecyclerView.smoothScrollToPosition(i);
}
}
}
});
recyCategory.addOnItemTouchListener(new RecyclerTouchListener(getContext(), recyCategory, new RecyclerTouchListener.ClickListener() {
@Override
public void onClick(View view, int position) {
//Toast.makeText(getContext(), "click"+String.valueOf(position), Toast.LENGTH_SHORT).show();
String tmpCatego = "", tmpCategoId = "";
// for (int i = 0; i < listCategoryName.size(); i++){
tmpCatego = listCategoryName.get(position);
// }
for (int j = 0; j < listArrayList.size(); j++) {
if (tmpCatego.trim().toLowerCase().equals(listArrayList.get(j).getCategoryName().trim().toLowerCase())) {
tmpCategoId = listArrayList.get(j).getCategoryId();
break;
}
}
for (int i = 0; i < foodListCategory.size(); i++) {
if (tmpCategoId.equals(foodListCategory.get(i).getCategoryId())) {
listRecyclerView.smoothScrollToPosition(i);
}
}
}
@Override
public void onLongClick(View view, int position) {
}
}));
final int[] count = {0};
listRecyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
@Override
public void onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy) {
super.onScrolled(recyclerView, dx, dy);
}
@Override
public void onScrollStateChanged(@NonNull RecyclerView recyclerView, int newState) {
super.onScrollStateChanged(recyclerView, newState);
if (isAdded()) {
try {
if (count[0] == 0) {
if (newState == RecyclerView.SCROLL_STATE_IDLE) {
}
// Toast.makeText(getContext(), "position "+ String.valueOf(firstVisiblePosition[0]), Toast.LENGTH_SHORT).show();
View visibleChild = recyclerView.getChildAt(0);
int positionOfChild = recyclerView.getChildAdapterPosition(visibleChild);
String tmpCatego = foodListCategory.get(positionOfChild).getCategoryName();
for (int k = 0; k < listCategoryName.size(); k++) {
if (tmpCatego.trim().toLowerCase().equals(listCategoryName.get(k).trim().toLowerCase())) {
recyCategory.smoothScrollToPosition(k);
View view = layoutManager.findViewByPosition(k);
categoryAdapterNew.highlightView(view, positionOfChild);
}
}
count[0]++;
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
});
// SnapHelper helper = new LinearSnapHelper(){
// @Override
// public View findSnapView(RecyclerView.LayoutManager layoutManager) {
// View view = super.findSnapView(layoutManager);
// try {
// if(view != null){
// final int newPos = layoutManager.getPosition(view);
//
// if(newPos != selectedPosition && listRecyclerView.getScrollState() == RecyclerView.SCROLL_STATE_IDLE){
// selectedPosition = newPos;
//
// for (int j = 0; j < foodListCategory.size(); j++){
// if(foodListCategory.get(j).getCategoryId().trim().equals(foodListCategory.get(selectedPosition).getCategoryId())){
//// int categoPos = ;
// for (int k = 0; k < listCategoryName.size(); k++){
//
// }
// }
// }
// }
// }
// }catch (Exception e){
// e.printStackTrace();
// }
// return view;
// }
// };
// helper.attachToRecyclerView(listRecyclerView);
return view;
}
private void init() {
mLayoutManager = new LinearLayoutManager(getActivity());
listRecyclerView = (RecyclerView) view.findViewById(R.id.linear_recyclerview);
listRecyclerView.setHasFixedSize(true);
listRecyclerView.setLayoutManager(mLayoutManager);// for
}
public void getFood() {
progressDialog.show();
ApiInterface apiInterface = ApiClient.getClient().create(ApiInterface.class);
Call<MenuFoodsResponse> call = apiInterface.getRestaurantMenuFood(restId, "foods", udToken);
call.enqueue(new Callback<MenuFoodsResponse>() {
@Override
public void onResponse(@NonNull Call<MenuFoodsResponse> call, @NonNull Response<MenuFoodsResponse> response) {
try {
String travelType = "";
if (response.body() == null) {
} else if (response.body().getCode() == 200) { //If user not registered
listArrayList = response.body().getContent();
if (listArrayList.size() > 0) {
for (int j = 0; j < listArrayList.size(); j++) {
foodListCategory.addAll(listArrayList.get(j).getContent());
for (int k = 0; k < foodListCategory.size(); k++) {
if (!listCategoryName.contains(listArrayList.get(j).getCategoryName())) {
listCategoryName.add(listArrayList.get(j).getCategoryName());
}
if (foodListCategory.get(k).getCategoryId() == null) {
foodListCategory.get(k).setCategoryId(listArrayList.get(j).getCategoryId());
foodListCategory.get(k).setCategoryName(listArrayList.get(j).getCategoryName());
}
}
}
adapterFoods = new foodsAdapter(getActivity(), foodListCategory);
listRecyclerView.setAdapter(adapterFoods);
adapterFoods.notifyDataSetChanged();
//Show Category list
// categoryAdapter myAdapter1 = new categoryAdapter(getContext(), R.layout.custom_category_list_item, listCategoryName);
// listCategory.setAdapter(myAdapter1);
recyCategory.swapAdapter(new categoryAdapterNew(getApplicationContext(), listCategoryName), true);
lineNoOffer.setVisibility(View.GONE);
} else {
lineNoOffer.setVisibility(View.VISIBLE);
}
} else { //If user already registered
String errorMessage = response.body().getMessage();
String errorCode = response.body().getErrorCode();
Toast.makeText(getActivity(), errorMessage + "(" + errorCode + ")", Toast.LENGTH_SHORT).show();
}
progressDialog.dismiss();
} catch (Exception e) {
e.printStackTrace();
progressDialog.dismiss();
}
}
@Override
public void onFailure(@NonNull Call<MenuFoodsResponse> call, @NonNull Throwable t) {
Log.e("TAG", t.toString());
t.printStackTrace();
Toast.makeText(getApplicationContext(), "Error :" + t.getLocalizedMessage(), Toast.LENGTH_SHORT).show();
progressDialog.dismiss();
}
});
}
@Override
public void onClick(View v) {
}
}
This is Food layout
(
fragment_food_menu.xml
)
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="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:orientation="vertical"
tools:context="com.urbandine.home.FoodMenuFragment">
<!-- TODO: Update blank fragment layout -->
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/recyCategory"
android:background="@color/white_color"
android:layout_alignParentTop="true"/>
<android.support.v7.widget.RecyclerView
android:layout_below="@+id/recyCategory"
android:id="@+id/linear_recyclerview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/light_grey_color" />
</RelativeLayout>
</LinearLayout>
This is foods adapter class
foodsAdapter.java
)
public class foodsAdapter extends RecyclerView.Adapter<FoodsViewHolder> {
private List<MenuFoods> arrayList;
private List<MenuFoods> arrayListFiltered;
private Context context;
private LinearLayout lineSmall, lineMedium, lineLarge;
private TextView tvPriceSmall, tvPriceMedium, tvPriceLarge, tvDishCount1, tvDishCount2, tvDishCount3;
private ImageView ivAddSmall, ivAddMedium, ivAddLarge, ivRemoveSmall, ivRemoveMedium, ivRemoveLarge;
public foodsAdapter(Context context, List<MenuFoods> arrayList) {
this.context = context;
this.arrayList = arrayList;
this.arrayListFiltered = arrayList;
}
@Override
public int getItemCount() {
return (null != arrayListFiltered ? arrayListFiltered.size() : 0);
}
@Override
public void onBindViewHolder(FoodsViewHolder holder, final int position) {
if (arrayListFiltered.size() > 0) {
final MenuFoods model = arrayListFiltered.get(position);
FoodsViewHolder mainHolder = (FoodsViewHolder) holder;// holder
}
}
// Implement click listener over layout
mainHolder.setOnClickListener(new OnRecyclerItemClickListener() {
@Override
public void onItemClickListener(View v, int pos) {
switch (v.getId()) {
case R.id.mainDrinks:
Activity activity = (Activity) context;
Intent intent = new Intent(context, DishDetailActivity.class);
context.startActivity(intent);
activity.overridePendingTransition(R.anim.push_right_out, R.anim.push_right_in);
break;
}
}
});
}
}
@Override
public FoodsViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
// This method will inflate the custom layout and return as viewholder
LayoutInflater mInflater = LayoutInflater.from(viewGroup.getContext());
ViewGroup mainGroup = (ViewGroup) mInflater.inflate(R.layout.custom_foods_item, viewGroup, false);
FoodsViewHolder listHolder = new FoodsViewHolder(mainGroup);
return listHolder;
}
}
My category view adapter
(
categoryAdapterNew.java
)
public class categoryAdapterNew extends RecyclerView.Adapter<categoryAdapterNew.CategoViewHolder> {
private List<String> amiItem = new ArrayList<>();
Context context;
private static Context context1;
private static TextView lastChecked = null;
public class CategoViewHolder extends RecyclerView.ViewHolder {
TextView textView;
public CategoViewHolder(View view) {
super(view);
textView = view.findViewById(R.id.tvCuisine);
}
}
public categoryAdapterNew(Context context, List<String> categoList) {
this.context = context;
this.amiItem = categoList;
this.context1 = context;
}
@NonNull
@Override
public categoryAdapterNew.CategoViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
View itemView = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.custom_category_list_item, viewGroup, false);
return new categoryAdapterNew.CategoViewHolder(itemView);
}
@Override
public void onBindViewHolder(@NonNull categoryAdapterNew.CategoViewHolder holder, int i) {
if(amiItem.size() > 0){
holder.textView.setText(amiItem.get(i));
//for default highlight first item on category recycler view
if(i == 0 && !holder.textView.isSelected()){
lastChecked = holder.textView;
lastCheckedPos = 0;
lastChecked.setTextColor(context1.getResources().getColor(R.color.red_color));
lastChecked.setSelected(true);
}
//Highlight textView when click on category item
holder.textView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
TextView tv = (TextView)v;
int clickPos = -1;
for(int k = 0; k < amiItem.size(); k++){
if(tv.getText().toString().trim().toLowerCase().equals(amiItem.get(k).trim().toLowerCase())){
clickPos = k;
break;
}
}
if(!tv.isSelected()){
if(lastChecked != null){
lastChecked.setSelected(false);
lastChecked.setTextColor(context1.getResources().getColor(R.color.text_color));
}
lastChecked = tv;
tv.setSelected(true);
tv.setTextColor(context1.getResources().getColor(R.color.red_color));
lastCheckedPos = clickPos;
}
}
});
}
}
//Highlight category item when scroll dish recycler view
public static void highlightView(View view, int pos){
TextView textView = (TextView)view.findViewById(R.id.tvCuisine);
if(!textView.isSelected()){
if(lastChecked != null){
lastChecked.setSelected(false);
lastChecked.setTextColor(context1.getResources().getColor(R.color.text_color));
}
lastChecked = textView;
textView.setSelected(true);
textView.setTextColor(context1.getResources().getColor(R.color.red_color));
lastCheckedPos = pos;
}
}
@Override
public int getItemCount() {
return amiItem.size();
}
}
