Я получаю объект от modelView, как вы, ребята, видите. Каждая вещь прекрасно работает, кроме моего фрагмента видового пейджера, когда я впервые прихожу к своему фрагменту пейджера, он показывает данные, когда я go проходит вперед, а затем возвращаюсь назад, он пропадает мои данные и моя структура макета. Мои viewModel имеют данные всегда имеют данные, но мои recyclerview не показывают их.
BrandFragment - это базовый фрагмент с видовым пейджером.
BrandFragment:
public class BrandFragment extends Fragment {
@BindView(R.id.brandtablayout)
TabLayout brandtablayout;
@BindView(R.id.brandpager)
ViewPager brandpager;
@BindView(R.id.backgroundImage)
ImageView backgroundImage;
@BindView(R.id.brandIcon)
CircleImageView brandIcon;
@BindView(R.id.brandName)
TextView brandName;
@BindView(R.id.brandTagLine)
TextView brandTagLine;
@BindView(R.id.brandRatingBar)
RatingBar brandRatingBar;
@BindView(R.id.noInternet)
ImageView noInternet;
private Brand brand;
int chipId;
private KProgressHUD mProgressBar;
private ShareViewModel shareViewModel;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_brand, container, false);
brandpager = view.findViewById(R.id.brandpager);
brandtablayout = view.findViewById(R.id.brandtablayout);
backgroundImage = view.findViewById(R.id.backgroundImage);
brandIcon = view.findViewById(R.id.brandIcon);
brandName = view.findViewById(R.id.brandName);
brandTagLine= view.findViewById(R.id.brandTagLine);
brandRatingBar = view.findViewById(R.id.brandRatingBar);
noInternet = view.findViewById(R.id.noInternet);
brandtablayout.addTab(brandtablayout.newTab().setText("Product"));
brandtablayout.addTab(brandtablayout.newTab().setText("Profile"));
brandtablayout.setTabGravity(TabLayout.GRAVITY_FILL);
BrandProfileViewPagerAdapter brandProfileAdapter = new BrandProfileViewPagerAdapter(getFragmentManager(), brandtablayout.getTabCount());
brandpager.setAdapter(brandProfileAdapter);
brandtablayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
brandpager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
progressbar("Getting Brand Detail","Please wait...");
return view;
}
private void getBrandDetails() {
WebServiceFactory.getInstance().getBrandDetails(chipId).enqueue(new Callback<Brand>() {
@Override
public void onResponse(Call<Brand> call, Response<Brand> response) {
if (response.body().getFlag() == 1) {
brand = response.body();
shareViewModel.setBrandProductsMutableLiveData(brand.getBrandProducts());
shareViewModel.setBrandSpecificationsMutableLiveData(brand.getBrandSpecifications());
brandProfileDetails();
mProgressBar.dismiss();
}else {
mProgressBar.dismiss();
}
}
@Override
public void onFailure(Call<Brand> call, Throwable t) {
mProgressBar.dismiss();
}
});
}
private void brandProfileDetails(){
if (brand.getBrandSpecifications() != null){
brandRatingBar.setRating(brand.getBrandSpecifications().getBrandRates());
brandName.setText(brand.getBrandSpecifications().getBrandName());
Picasso.get().load(AppConstants.imagePath(brand.getBrandSpecifications().getBrandBg())).into(backgroundImage);
brandTagLine.setText(brand.getBrandSpecifications().getBrandSlogan());
Picasso.get().load(AppConstants.imagePath(brand.getBrandSpecifications().getBrandIcon())).into(brandIcon);
}
mProgressBar.dismiss();
}
@Override
public void onViewCreated (@NonNull View view, @Nullable Bundle savedInstanceState){
super.onViewCreated(view, savedInstanceState);
shareViewModel = ViewModelProviders.of((FragmentActivity) requireActivity()).get(ShareViewModel.class);
shareViewModel.getChipId().observe(getViewLifecycleOwner(), new Observer<Integer>() {
@Override
public void onChanged(Integer id) {
chipId =id;
if (InternetConnection.checkConnection(getContext())) {
// Internet Available...
noInternet.setVisibility(View.GONE);
getBrandDetails();
} else {
noInternet.setVisibility(View.VISIBLE);
mProgressBar.dismiss();
Toast.makeText(getContext(), "Check your internet Connection", Toast.LENGTH_SHORT).show();
// Internet Not Available...
}
}
});
}
private void progressbar(String title, String detail){
mProgressBar = KProgressHUD.create(getContext())
.setStyle(KProgressHUD.Style.SPIN_INDETERMINATE)
.setLabel(title)
.setDetailsLabel(detail)
.setCancellable(false)
.setAnimationSpeed(2)
.setDimAmount(0.5f)
.show();
}
}
BrandProductFragment:
public class BrandProductFragment extends Fragment implements RecyclerviewOnClickInterface, CategoryRecyclerviewInterface, ChipsInterface, MyButtonClickListener {
int tabCount;
@BindView(R.id.brandPopularProduct)
TextView brandPopularProduct;
@BindView(R.id.brandNewProduct)
TextView brnadNewProduct;
@BindView(R.id.brandHighestProduct)
TextView brandHighestProduct;
@BindView(R.id.brandLowestProduct)
TextView brandLowestProduct;
@BindView(R.id.brandProductRecyclerview)
RecyclerView brandProductRecyclerview;
BrandProfilePopularAdapter brandProfilePopularAdapter;
BrandNewReleaseAdapter brandNewReleaseAdapter;
BrandProductHighestAdapter brandProductHighestAdapter;
BrandLowestAdapter brandLowestAdapter;
BrandProducts brandProductData;
ShareViewModel shareViewModel;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_brand_product, container, false);
tabCount = 0;
brandPopularProduct = view.findViewById(R.id.brandPopularProduct);
brnadNewProduct = view.findViewById(R.id.brandNewProduct);
brandHighestProduct = view.findViewById(R.id.brandHighestProduct);
brandLowestProduct = view.findViewById(R.id.brandLowestProduct);
brandProductRecyclerview = view.findViewById(R.id.brandProductRecyclerview);
buttonOnClick();
return view;
}
private void buttonOnClick() {
brandPopularProduct.setOnClickListener(v -> {
tabCount = 1;
tabSelector();
if (brandProductData != null) {
getBrandProductPopular(brandProductData);
}
});
brnadNewProduct.setOnClickListener(v -> {
tabCount = 2;
tabSelector();
if (brandProductData != null) {
getBrandProductNewRelease();
}
});
brandHighestProduct.setOnClickListener(v -> {
tabCount = 3;
tabSelector();
if (brandProductData != null) {
getBrandProductHighest();
}
});
brandLowestProduct.setOnClickListener(v -> {
tabCount = 4;
tabSelector();
if (brandProductData != null) {
getBrandProductLowest();
}
});
}
private void tabSelector() {
if (tabCount == 1) {
brandPopularProduct.setTextColor(ContextCompat.getColor(getContext(), R.color.fontColor));
brandPopularProduct.setTextSize(20);
brnadNewProduct.setTextSize(18);
brandLowestProduct.setTextSize(18);
brandHighestProduct.setTextSize(18);
brnadNewProduct.setTextColor(ContextCompat.getColor(getContext(), R.color.fontColor2));
brandHighestProduct.setTextColor(ContextCompat.getColor(getContext(), R.color.fontColor2));
brandLowestProduct.setTextColor(ContextCompat.getColor(getContext(), R.color.fontColor2));
} else if (tabCount == 2) {
brnadNewProduct.setTextColor(ContextCompat.getColor(getContext(), R.color.fontColor));
brandPopularProduct.setTextSize(18);
brnadNewProduct.setTextSize(20);
brandLowestProduct.setTextSize(18);
brandHighestProduct.setTextSize(18);
brandPopularProduct.setTextColor(ContextCompat.getColor(getContext(), R.color.fontColor2));
brandHighestProduct.setTextColor(ContextCompat.getColor(getContext(), R.color.fontColor2));
brandLowestProduct.setTextColor(ContextCompat.getColor(getContext(), R.color.fontColor2));
} else if (tabCount == 3) {
brandHighestProduct.setTextColor(ContextCompat.getColor(getContext(), R.color.fontColor));
brandPopularProduct.setTextSize(18);
brnadNewProduct.setTextSize(18);
brandLowestProduct.setTextSize(18);
brandHighestProduct.setTextSize(20);
brnadNewProduct.setTextColor(ContextCompat.getColor(getContext(), R.color.fontColor2));
brandPopularProduct.setTextColor(ContextCompat.getColor(getContext(), R.color.fontColor2));
brandLowestProduct.setTextColor(ContextCompat.getColor(getContext(), R.color.fontColor2));
} else if (tabCount == 4) {
brandLowestProduct.setTextColor(ContextCompat.getColor(getContext(), R.color.fontColor));
brandPopularProduct.setTextSize(18);
brnadNewProduct.setTextSize(18);
brandLowestProduct.setTextSize(20);
brandHighestProduct.setTextSize(18);
brnadNewProduct.setTextColor(ContextCompat.getColor(getContext(), R.color.fontColor2));
brandHighestProduct.setTextColor(ContextCompat.getColor(getContext(), R.color.fontColor2));
brandPopularProduct.setTextColor(ContextCompat.getColor(getContext(), R.color.fontColor2));
}
}
private void getBrandProductPopular(BrandProducts brandProductData) {
if (brandProductData.getPOPULARPRODUCTS() != null){
brandProfilePopularAdapter = new BrandProfilePopularAdapter(getContext(), brandProductData.getPOPULARPRODUCTS(), this);
GridLayoutManager mLayoutManager = new GridLayoutManager(getContext(), 2);
brandProductRecyclerview.setLayoutManager(mLayoutManager);
brandProductRecyclerview.setAdapter(brandProfilePopularAdapter);
recyclerviewAnimation(brandProductRecyclerview);
}
}
private void getBrandProductNewRelease() {
if ( brandProductData.getNEWRELEASEPRODUCTS() != null){
brandNewReleaseAdapter = new BrandNewReleaseAdapter(getContext(), brandProductData.getNEWRELEASEPRODUCTS(), this);
GridLayoutManager mLayoutManager = new GridLayoutManager(getContext(), 2);
brandProductRecyclerview.setLayoutManager(mLayoutManager);
brandProductRecyclerview.setAdapter(brandNewReleaseAdapter);
recyclerviewAnimation(brandProductRecyclerview);
}
}
private void getBrandProductHighest() {
if (brandProductData.getHIGHESTPRODUCTS() != null){
brandProductHighestAdapter = new BrandProductHighestAdapter(getContext(), brandProductData.getHIGHESTPRODUCTS(), this);
GridLayoutManager mLayoutManager = new GridLayoutManager(getContext(), 2);
brandProductRecyclerview.setLayoutManager(mLayoutManager);
brandProductRecyclerview.setAdapter(brandProductHighestAdapter);
recyclerviewAnimation(brandProductRecyclerview);
}
}
private void getBrandProductLowest() {
if ( brandProductData.getLOWESTPRODUCTS() != null){
brandLowestAdapter = new BrandLowestAdapter(getContext(), brandProductData.getLOWESTPRODUCTS(), this);
GridLayoutManager mLayoutManager = new GridLayoutManager(getContext(), 2);
brandProductRecyclerview.setLayoutManager(mLayoutManager);
brandProductRecyclerview.setAdapter(brandLowestAdapter);
recyclerviewAnimation(brandProductRecyclerview);
}
}
@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
shareViewModel = ViewModelProviders.of((FragmentActivity) getContext()).get(ShareViewModel.class);
shareViewModel.getBrandProduct().observe(getViewLifecycleOwner(), new Observer<BrandProducts>() {
@Override
public void onChanged(BrandProducts brandProducts) {
Log.e("getBrands", brandProducts.toString());
brandProductData = brandProducts;
getBrandProductPopular(brandProductData);
}
});
}
private void recyclerviewAnimation(RecyclerView recyclerView) {
Context context = recyclerView.getContext();
LayoutAnimationController layoutAnimationController = AnimationUtils.loadLayoutAnimation(context, R.anim.layout_animation_fall_down);
recyclerView.setLayoutAnimation(layoutAnimationController);
recyclerView.getAdapter().notifyDataSetChanged();
recyclerView.scheduleLayoutAnimation();
}
int productId;
@Override
public void onItemClick(int position) {
shareViewModel.setProductIdMutable(brandProductData.getPOPULARPRODUCTS().get(position).getProductId());
fragmentTransaction();
}
@Override
public void onItemClickCategory(int position) {
shareViewModel.setProductIdMutable(brandProductData.getNEWRELEASEPRODUCTS().get(position).getProductId());
fragmentTransaction();
}
@Override
public void onChipItemClick(int position) {
shareViewModel.setProductIdMutable(brandProductData.getHIGHESTPRODUCTS().get(position).getProductId());
fragmentTransaction();
}
@Override
public void onclick(int position) {
shareViewModel.setProductIdMutable(brandProductData.getLOWESTPRODUCTS().get(position).getProductId());
fragmentTransaction();
}
private void fragmentTransaction() {
Bundle bundle = new Bundle();
bundle.putString("BrandProduct", "brand");
PreviewProductFragment previewProductFragment = new PreviewProductFragment();
previewProductFragment.setArguments(bundle);
FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction().addToBackStack("");
fragmentTransaction.setCustomAnimations(R.anim.enter_right_to_left, R.anim.exit_right_to_left);
fragmentTransaction.replace(R.id.tabbed_framelayout, previewProductFragment);
fragmentTransaction.commit();
}
}
BrandProfileViewPagerAdapter это мой viewPager адаптер:
public class BrandProfileViewPagerAdapter extends FragmentStatePagerAdapter {
private int tabCount;
public BrandProfileViewPagerAdapter(@NonNull FragmentManager fm, int tabs) {
super(fm, tabs);
this.tabCount=tabs;
}
@NonNull
@Override
public Fragment getItem(int position) {
switch (position){
case 0:
BrandProductFragment brandProductFragment = new BrandProductFragment();
return brandProductFragment;
case 1:
BrandProfileFragment brandProfileFragment= new BrandProfileFragment();
return brandProfileFragment;
default:
return null;
}
}
@Override
public int getCount() {
return tabCount;
}
}
До:
После: 