From 0f58e2b1a32a84a946dfb89d7ab78e53adc5128b Mon Sep 17 00:00:00 2001
From: Epicadk <adityakurkure@gmail.com>
Date: Fri, 30 Oct 2020 02:51:10 +0530
Subject: [PATCH] Show error view in home fragment.

---
 .../tip/lunchbox/view/fragment/HomeFragment.java   | 14 ++++++++++++--
 .../com/tip/lunchbox/viewmodel/HomeViewModel.java  | 14 ++++++++++----
 2 files changed, 22 insertions(+), 6 deletions(-)

diff --git a/app/src/main/java/com/tip/lunchbox/view/fragment/HomeFragment.java b/app/src/main/java/com/tip/lunchbox/view/fragment/HomeFragment.java
index 5fd6949..72e0043 100644
--- a/app/src/main/java/com/tip/lunchbox/view/fragment/HomeFragment.java
+++ b/app/src/main/java/com/tip/lunchbox/view/fragment/HomeFragment.java
@@ -79,7 +79,7 @@ public View onCreateView(@NotNull LayoutInflater inflater,
                     .getRestaurant().getId());
             requireActivity().startActivity(intent);
         });
-
+        onError();
         BottomSheetBehavior.from(homeBinding.nsvRestaurantList);
         homeBinding.rvRestaurant.setLayoutManager(new LinearLayoutManager(getActivity()));
         homeBinding.rvRestaurant.setAdapter(adapter);
@@ -109,13 +109,23 @@ private void showData() {
         homeBinding.rvRestaurant.setVisibility(View.VISIBLE);
     }
 
+    private void onError() {
+        viewModel.getIsErrorLiveData().observe(getViewLifecycleOwner(), aBoolean -> {
+            if (aBoolean) {
+                showErrorView();
+            } else {
+                showData();
+            }
+        });
+    }
+
     private void loadData() {
         showLoadingView();
         viewModel.getCategoriesLiveData().observe(getViewLifecycleOwner(), categoryResponse -> {
             if (categoryResponse != null) {
                 List<CategoryContainer> categories = categoryResponse.getCategories();
                 for (CategoryContainer categoryContainer : categories) {
-                    Chip categoryChip = (Chip)(getLayoutInflater()
+                    Chip categoryChip = (Chip) (getLayoutInflater()
                             .inflate(R.layout.item_chip_category, homeBinding.filterChipGroup,
                                     false));
                     categoryChip.setText(categoryContainer.getCategories().getName());
diff --git a/app/src/main/java/com/tip/lunchbox/viewmodel/HomeViewModel.java b/app/src/main/java/com/tip/lunchbox/viewmodel/HomeViewModel.java
index 9c695e9..f51f750 100644
--- a/app/src/main/java/com/tip/lunchbox/viewmodel/HomeViewModel.java
+++ b/app/src/main/java/com/tip/lunchbox/viewmodel/HomeViewModel.java
@@ -10,6 +10,8 @@
 import com.tip.lunchbox.model.GeocodeResponse;
 import com.tip.lunchbox.model.SearchResponse;
 
+import java.io.IOException;
+
 import io.reactivex.rxjava3.annotations.NonNull;
 import io.reactivex.rxjava3.core.Scheduler;
 import io.reactivex.rxjava3.core.Single;
@@ -26,6 +28,7 @@ public class HomeViewModel extends ViewModel {
     private MutableLiveData<GeocodeResponse> restaurantLiveData = new MutableLiveData<>();
     private MutableLiveData<CategoryResponse> categoriesLiveData = new MutableLiveData<>();
     private MutableLiveData<SearchResponse> filteredRestaurantLiveData = new MutableLiveData<>();
+    private MutableLiveData<Boolean> isError = new MutableLiveData<>();
 
     public LiveData<CategoryResponse> getCategoriesLiveData() {
         // Since list of categories will rarely change, previous data is used as much is possible
@@ -40,6 +43,9 @@ public LiveData<GeocodeResponse> getRestaurantLiveData() {
         return restaurantLiveData;
     }
 
+    public LiveData<Boolean> getIsErrorLiveData() {
+        return isError;
+    }
     public LiveData<SearchResponse> getFilteredLiveData() {
         return filteredRestaurantLiveData;
     }
@@ -65,7 +71,7 @@ public void onSuccess(@NonNull CategoryResponse categoryResponse) {
 
                     @Override
                     public void onError(@NonNull Throwable error) {
-
+                        isError.postValue(true);
                     }
                 });
     }
@@ -91,7 +97,7 @@ public void onSuccess(@NonNull GeocodeResponse geocodeResponse) {
 
                     @Override
                     public void onError(@NonNull Throwable error) {
-
+                        isError.postValue(true);
                     }
                 });
 
@@ -100,7 +106,7 @@ public void onError(@NonNull Throwable error) {
     public void fetchFilteredRestaurantData(Integer categoryId) {
         repository.getSearchResponseObservable(new SearchQuery().addCategory(categoryId)
                 .addGeoLocation(18.5, 73.8))
-                .subscribeOn(Schedulers.io())
+                .subscribeOn(Schedulers.newThread())
                 .subscribe(new SingleObserver<SearchResponse>() {
                     @Override
                     public void onSubscribe(@NonNull Disposable disposable) {
@@ -114,7 +120,7 @@ public void onSuccess(@NonNull SearchResponse searchResponse) {
 
                     @Override
                     public void onError(@NonNull Throwable error) {
-
+                        isError.postValue(true);
                     }
                 });
     }