added filter dialog part1

@@ -10,6 +10,7 @@ import android.text.TextUtils;
 import android.util.TypedValue;
 import android.view.LayoutInflater;
 import android.view.View;
+import android.view.ViewGroup;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.RelativeLayout;
@@ -24,6 +25,8 @@ import androidx.viewpager2.widget.ViewPager2;
 
 import com.bumptech.glide.Glide;
 import com.bumptech.glide.load.engine.DiskCacheStrategy;
+import com.google.android.material.bottomsheet.BottomSheetBehavior;
+import com.google.android.material.bottomsheet.BottomSheetDialog;
 
 import java.util.ArrayList;
 import java.util.LinkedHashMap;
@@ -58,7 +61,7 @@ public class HomeActivity extends Activity implements View.OnClickListener, Coup
 
     private RelativeLayout mPbLoading;
     private TextView mTvHeaderTitle, mTvMyCouponsTitle, mTvMyCouponsValue, mTvSearchTitle;
-    private LinearLayout mLlUserTags, mLlMyCoupons;
+    private LinearLayout mLlUserTags, mLlMyCoupons, mLlSearchFilterButton;
     /* View Pager */
 //    private ViewPager2 mBannerViewPager;
     private RecyclerView mRvBannerViewPager;
@@ -114,6 +117,10 @@ public class HomeActivity extends Activity implements View.OnClickListener, Coup
             startActivity(myIntent);
             return;
         }
+        if (v.getId() == R.id.ll_search_filter_button) {
+            showFilterDialog();
+            return;
+        }
         if (v.getId() == R.id.ll_all) {
             String categoryName = (String) v.getTag();
             Intent myIntent = new Intent(HomeActivity.this, CouponsetsActivity.class);
@@ -138,6 +145,8 @@ public class HomeActivity extends Activity implements View.OnClickListener, Coup
         mPbLoading.setOnTouchListener((v, event) -> true);
         mLlMyCoupons = findViewById(R.id.ll_my_coupons);
         mLlMyCoupons.setOnClickListener(this);
+        mLlSearchFilterButton = findViewById(R.id.ll_search_filter_button);
+        mLlSearchFilterButton.setOnClickListener(this);
         mViewPager = findViewById(R.id.cl_viewpager);
         mSectionsContainer = findViewById(R.id.ll_sections_container);
         mSectionsLoading = findViewById(R.id.rl_sections_loading);
@@ -355,6 +364,122 @@ public class HomeActivity extends Activity implements View.OnClickListener, Coup
         mSectionsLoading.setVisibility(View.GONE);
     }
 
+    private void showFilterDialog() {
+        Filter filter = WarplyManagerHelper.getFilter();
+        if (filter == null || filter.getOfferCategories() == null || filter.getOfferCategories().isEmpty()) {
+            return;
+        }
+
+        BottomSheetDialog bottomSheetDialog = new BottomSheetDialog(this, R.style.FullScreenBottomSheetDialog);
+        View dialogView = LayoutInflater.from(this).inflate(R.layout.dl_filter, null);
+        bottomSheetDialog.setContentView(dialogView);
+
+        LinearLayout llFilterContainer = dialogView.findViewById(R.id.ll_filter_container);
+
+        // Static "Top Offers" row
+        View topOffersRow = LayoutInflater.from(this).inflate(R.layout.item_filter_category, llFilterContainer, false);
+        TextView tvTopOffers = topOffersRow.findViewById(R.id.tv_category_name);
+        tvTopOffers.setText(getString(R.string.lbl_top_offers));
+        WarpUtils.renderCustomFont(this, R.font.ping_lcg_regular, tvTopOffers);
+        topOffersRow.setTag(R.string.lbl_top_offers);
+        topOffersRow.setOnClickListener(v -> {
+            // TODO: filter action
+            bottomSheetDialog.dismiss();
+        });
+        llFilterContainer.addView(topOffersRow);
+
+        // Divider after Top Offers
+        View divider = new View(this);
+        LinearLayout.LayoutParams dividerParams = new LinearLayout.LayoutParams(
+                LinearLayout.LayoutParams.MATCH_PARENT, 1);
+        int dividerMarginPx = (int) TypedValue.applyDimension(
+                TypedValue.COMPLEX_UNIT_DIP, 24, getResources().getDisplayMetrics());
+        dividerParams.setMarginStart(dividerMarginPx);
+        dividerParams.setMarginEnd(dividerMarginPx);
+        divider.setLayoutParams(dividerParams);
+        divider.setBackgroundColor(getColor(R.color.custom_grey12));
+        llFilterContainer.addView(divider);
+
+        // Dynamic categories from Filter
+        for (Filter.OfferCategory parent : filter.getOfferCategories()) {
+            if (parent.getAdminName() == null) continue;
+
+            View categoryRow = LayoutInflater.from(this).inflate(R.layout.item_filter_category, llFilterContainer, false);
+            TextView tvCategoryName = categoryRow.findViewById(R.id.tv_category_name);
+            ImageView ivArrow = categoryRow.findViewById(R.id.iv_arrow);
+
+            tvCategoryName.setText(parent.getAdminName());
+            WarpUtils.renderCustomFont(this, R.font.ping_lcg_regular, tvCategoryName);
+
+            boolean hasChildren = parent.getChildren() != null && !parent.getChildren().isEmpty();
+
+            if (!hasChildren) {
+                ivArrow.setVisibility(View.GONE);
+                categoryRow.setTag(parent.getAdminName());
+                categoryRow.setOnClickListener(v -> {
+                    // TODO: filter action
+                    bottomSheetDialog.dismiss();
+                });
+                llFilterContainer.addView(categoryRow);
+            } else {
+                ivArrow.setVisibility(View.VISIBLE);
+
+                // Child container (collapsed by default)
+                LinearLayout childContainer = new LinearLayout(this);
+                childContainer.setOrientation(LinearLayout.VERTICAL);
+                childContainer.setVisibility(View.GONE);
+                childContainer.setLayoutParams(new LinearLayout.LayoutParams(
+                        LinearLayout.LayoutParams.MATCH_PARENT,
+                        LinearLayout.LayoutParams.WRAP_CONTENT));
+
+                for (Filter.OfferCategory child : parent.getChildren()) {
+                    if (child.getAdminName() == null) continue;
+                    View childRow = LayoutInflater.from(this).inflate(R.layout.item_filter_subcategory, childContainer, false);
+                    TextView tvSubcategoryName = childRow.findViewById(R.id.tv_subcategory_name);
+                    tvSubcategoryName.setText(child.getAdminName());
+                    WarpUtils.renderCustomFont(this, R.font.ping_lcg_regular, tvSubcategoryName);
+                    childRow.setTag(child.getAdminName());
+                    childRow.setOnClickListener(v -> {
+                        // TODO: filter action
+                        bottomSheetDialog.dismiss();
+                    });
+                    childContainer.addView(childRow);
+                }
+
+                categoryRow.setOnClickListener(v -> {
+                    boolean isExpanded = childContainer.getVisibility() == View.VISIBLE;
+                    if (isExpanded) {
+                        childContainer.setVisibility(View.GONE);
+                        ivArrow.animate().rotation(0f).setDuration(200).start();
+                    } else {
+                        childContainer.setVisibility(View.VISIBLE);
+                        ivArrow.animate().rotation(180f).setDuration(200).start();
+                    }
+                });
+
+                llFilterContainer.addView(categoryRow);
+                llFilterContainer.addView(childContainer);
+            }
+        }
+
+        bottomSheetDialog.setOnShowListener(dialog -> {
+            View bottomSheet = bottomSheetDialog.findViewById(com.google.android.material.R.id.design_bottom_sheet);
+            if (bottomSheet != null) {
+                bottomSheet.post(() -> {
+                    int screenHeight = getResources().getDisplayMetrics().heightPixels;
+                    ViewGroup.LayoutParams lp = bottomSheet.getLayoutParams();
+                    lp.height = screenHeight;
+                    bottomSheet.setLayoutParams(lp);
+                    BottomSheetBehavior<View> behavior = BottomSheetBehavior.from(bottomSheet);
+                    behavior.setSkipCollapsed(true);
+                    behavior.setPeekHeight(screenHeight);
+                    behavior.setState(BottomSheetBehavior.STATE_EXPANDED);
+                });
+            }
+        });
+        bottomSheetDialog.show();
+    }
+
     private Couponset findCouponsetByUuid(String uuid) {
         LinkedHashMap<String, ArrayList<Couponset>> categorizedMap = WarplyManagerHelper.getCouponsetCategorizedMap();
         if (categorizedMap != null) {

+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@color/custom_black7"
+    android:orientation="vertical">
+
+    <androidx.core.widget.NestedScrollView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <LinearLayout
+            android:id="@+id/ll_filter_container"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical" />
+
+    </androidx.core.widget.NestedScrollView>
+
+</LinearLayout>

+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="56dp"
+    android:background="@color/custom_black7"
+    android:paddingHorizontal="24dp">
+
+    <TextView
+        android:id="@+id/tv_category_name"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerVertical="true"
+        android:layout_alignParentStart="true"
+        android:includeFontPadding="false"
+        android:textColor="@color/white"
+        android:textSize="16sp" />
+
+    <ImageView
+        android:id="@+id/iv_arrow"
+        android:layout_width="16dp"
+        android:layout_height="16dp"
+        android:layout_alignParentEnd="true"
+        android:layout_centerVertical="true"
+        android:src="@drawable/ic_arrow_down_white"
+        android:visibility="gone" />
+
+</RelativeLayout>

+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="56dp"
+    android:background="@color/custom_black7"
+    android:paddingHorizontal="24dp">
+
+    <TextView
+        android:id="@+id/tv_subcategory_name"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerVertical="true"
+        android:layout_alignParentStart="true"
+        android:layout_marginStart="32dp"
+        android:includeFontPadding="false"
+        android:textColor="@color/custom_skyblue4"
+        android:textSize="16sp" />
+
+</RelativeLayout>

@@ -44,4 +44,5 @@
     <color name="custom_grey10">#ECEDEF</color>
     <color name="custom_grey11">#E7E7E7</color>
     <color name="custom_blue">#004E6E</color>
+    <color name="custom_grey12">#EBEDEF</color>
 </resources>

+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <dimen name="bottom_sheet_full_height">2000dp</dimen>
+</resources>

@@ -42,4 +42,5 @@
     <string name="demo_partners_title">Partner businesses</string>
     <string name="demo_search_title">Αναζήτηση</string>
     <string name="lbl_directions">Οδηγίες</string>
+    <string name="lbl_top_offers">Top Offers</string>
 </resources>

@@ -47,4 +47,22 @@
         <item name="cornerSizeBottomLeft">0dp</item>
         <item name="cornerSizeBottomRight">0dp</item>
     </style>
+
+    <style name="FullScreenBottomSheetDialog" parent="Theme.MaterialComponents.Light.BottomSheetDialog">
+        <item name="android:windowIsFloating">false</item>
+        <item name="android:windowFullscreen">true</item>
+        <item name="android:windowContentOverlay">@null</item>
+        <item name="bottomSheetStyle">@style/FullScreenBottomSheetStyle</item>
+    </style>
+
+    <style name="FullScreenBottomSheetStyle" parent="Widget.MaterialComponents.BottomSheet.Modal">
+        <item name="android:layout_height">match_parent</item>
+        <item name="shapeAppearanceOverlay">@style/NoCornerShapeAppearance</item>
+        <item name="behavior_peekHeight">@dimen/bottom_sheet_full_height</item>
+        <item name="behavior_skipCollapsed">true</item>
+    </style>
+
+    <style name="NoCornerShapeAppearance" parent="">
+        <item name="cornerSize">0dp</item>
+    </style>
 </resources>