From 9fdfa1270b085a60a46e78836f1a9a142b06c4c8 Mon Sep 17 00:00:00 2001
From: nazar-kutz <vitaminkuna@gmail.com>
Date: Mon, 5 Apr 2021 20:19:16 +0300
Subject: [PATCH] Show current card header on main header

---
 .../bottom_sheet_item_with_two_text.xml       | 44 +++++++++++++
 OsmAnd/res/layout/route_line_appearance.xml   | 23 +------
 OsmAnd/res/layout/route_line_color_card.xml   | 39 +----------
 OsmAnd/res/layout/route_line_width_card.xml   | 39 +----------
 .../routing/cards/RouteLineColorCard.java     | 39 ++++++-----
 .../routing/cards/RouteLineWidthCard.java     | 24 +++++--
 .../RouteLineAppearanceFragment.java          | 65 ++++++++++++++++---
 7 files changed, 148 insertions(+), 125 deletions(-)
 create mode 100644 OsmAnd/res/layout/bottom_sheet_item_with_two_text.xml

diff --git a/OsmAnd/res/layout/bottom_sheet_item_with_two_text.xml b/OsmAnd/res/layout/bottom_sheet_item_with_two_text.xml
new file mode 100644
index 0000000000..eb2efab2ef
--- /dev/null
+++ b/OsmAnd/res/layout/bottom_sheet_item_with_two_text.xml
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:osmand="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:minHeight="@dimen/bottom_sheet_list_item_height"
+        android:gravity="center_vertical"
+        android:orientation="horizontal">
+
+        <net.osmand.plus.widgets.TextViewEx
+            android:id="@+id/title"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:letterSpacing="@dimen/description_letter_spacing"
+            android:paddingLeft="@dimen/content_padding"
+            android:paddingRight="@dimen/content_padding"
+            android:textColor="?android:textColorPrimary"
+            android:textSize="@dimen/default_list_text_size"
+            osmand:typeface="@string/font_roboto_medium"
+            tools:text="Title" />
+
+        <net.osmand.plus.widgets.TextViewEx
+            android:id="@+id/descr"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:gravity="end"
+            android:letterSpacing="@dimen/description_letter_spacing"
+            android:paddingLeft="@dimen/content_padding"
+            android:paddingRight="@dimen/content_padding"
+            android:textColor="?android:textColorSecondary"
+            android:textSize="@dimen/default_list_text_size"
+            osmand:typeface="@string/font_roboto_medium"
+            tools:text="Description" />
+
+    </LinearLayout>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/OsmAnd/res/layout/route_line_appearance.xml b/OsmAnd/res/layout/route_line_appearance.xml
index e5410cdd2f..5564b3b867 100644
--- a/OsmAnd/res/layout/route_line_appearance.xml
+++ b/OsmAnd/res/layout/route_line_appearance.xml
@@ -19,9 +19,7 @@
             android:layout_height="wrap_content"
             android:background="?attr/bg_color"
             android:minHeight="@dimen/bottom_sheet_title_height"
-            android:orientation="vertical"
-            android:paddingLeft="@dimen/content_padding"
-            android:paddingRight="@dimen/content_padding">
+            android:orientation="vertical">
 
             <View
                 android:layout_width="@dimen/content_padding"
@@ -31,23 +29,8 @@
                 android:layout_marginBottom="@dimen/list_item_button_padding"
                 android:background="?attr/bg_dash_line" />
 
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content">
-
-                <net.osmand.plus.widgets.TextViewEx
-                    android:id="@+id/header_title"
-                    android:layout_width="0dp"
-                    android:layout_height="match_parent"
-                    android:layout_gravity="center_vertical"
-                    android:layout_weight="1"
-                    android:gravity="center_vertical"
-                    android:letterSpacing="@dimen/text_button_letter_spacing"
-                    android:textColor="?android:textColorPrimary"
-                    android:textSize="@dimen/default_list_text_size"
-                    osmand:typeface="@string/font_roboto_medium" />
-
-            </LinearLayout>
+            <include android:id="@+id/header_container"
+                layout="@layout/bottom_sheet_item_with_two_text" />
 
         </LinearLayout>
 
diff --git a/OsmAnd/res/layout/route_line_color_card.xml b/OsmAnd/res/layout/route_line_color_card.xml
index c25332de88..f8db414f16 100644
--- a/OsmAnd/res/layout/route_line_color_card.xml
+++ b/OsmAnd/res/layout/route_line_color_card.xml
@@ -9,43 +9,8 @@
     <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:orientation="horizontal">
-
-        <net.osmand.plus.widgets.TextViewEx
-            android:layout_width="0dp"
-            android:layout_height="wrap_content"
-            android:layout_weight="1"
-            android:letterSpacing="@dimen/description_letter_spacing"
-            android:paddingLeft="@dimen/content_padding"
-            android:paddingTop="@dimen/content_padding_small"
-            android:paddingRight="@dimen/content_padding"
-            android:paddingBottom="@dimen/content_padding_small"
-            android:text="@string/shared_string_color"
-            android:textColor="?android:textColorPrimary"
-            android:textSize="@dimen/default_list_text_size"
-            osmand:typeface="@string/font_roboto_medium" />
-
-        <net.osmand.plus.widgets.TextViewEx
-            android:id="@+id/color_name"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:gravity="end"
-            android:letterSpacing="@dimen/description_letter_spacing"
-            android:paddingLeft="@dimen/content_padding"
-            android:paddingTop="@dimen/content_padding_small"
-            android:paddingRight="@dimen/content_padding"
-            android:paddingBottom="@dimen/content_padding_small"
-            android:textColor="?android:textColorSecondary"
-            android:textSize="@dimen/default_list_text_size"
-            osmand:typeface="@string/font_roboto_medium"
-            tools:text="Orange" />
-
-    </LinearLayout>
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:orientation="horizontal">
+        android:orientation="horizontal"
+        android:paddingTop="@dimen/content_padding_small">
 
         <androidx.recyclerview.widget.RecyclerView
             android:id="@+id/recycler_view"
diff --git a/OsmAnd/res/layout/route_line_width_card.xml b/OsmAnd/res/layout/route_line_width_card.xml
index 9d0702b1dd..85dbe8ad1b 100644
--- a/OsmAnd/res/layout/route_line_width_card.xml
+++ b/OsmAnd/res/layout/route_line_width_card.xml
@@ -13,48 +13,13 @@
         android:background="?attr/divider_color_basic"
         android:focusable="false" />
 
+    <include layout="@layout/bottom_sheet_item_with_two_text" />
+
     <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:orientation="horizontal">
 
-        <net.osmand.plus.widgets.TextViewEx
-            android:layout_width="0dp"
-            android:layout_height="wrap_content"
-            android:layout_weight="1"
-            android:letterSpacing="@dimen/description_letter_spacing"
-            android:paddingLeft="@dimen/content_padding"
-            android:paddingTop="@dimen/content_padding_small"
-            android:paddingRight="@dimen/content_padding"
-            android:paddingBottom="@dimen/content_padding_small"
-            android:text="@string/select_track_width"
-            android:textColor="?android:textColorPrimary"
-            android:textSize="@dimen/default_list_text_size"
-            osmand:typeface="@string/font_roboto_medium" />
-
-        <net.osmand.plus.widgets.TextViewEx
-            android:id="@+id/width_type"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:gravity="end"
-            android:letterSpacing="@dimen/description_letter_spacing"
-            android:paddingLeft="@dimen/content_padding"
-            android:paddingTop="@dimen/content_padding_small"
-            android:paddingRight="@dimen/content_padding"
-            android:paddingBottom="@dimen/content_padding_small"
-            android:textColor="?android:textColorSecondary"
-            android:textSize="@dimen/default_list_text_size"
-            osmand:typeface="@string/font_roboto_medium"
-            tools:text="21" />
-
-    </LinearLayout>
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:orientation="horizontal"
-        android:paddingTop="@dimen/context_menu_padding_margin_tiny">
-
         <androidx.recyclerview.widget.RecyclerView
             android:id="@+id/recycler_view"
             android:layout_width="match_parent"
diff --git a/OsmAnd/src/net/osmand/plus/routing/cards/RouteLineColorCard.java b/OsmAnd/src/net/osmand/plus/routing/cards/RouteLineColorCard.java
index d8abad16e4..8032a40d8c 100644
--- a/OsmAnd/src/net/osmand/plus/routing/cards/RouteLineColorCard.java
+++ b/OsmAnd/src/net/osmand/plus/routing/cards/RouteLineColorCard.java
@@ -27,6 +27,9 @@ import net.osmand.plus.routepreparationmenu.cards.BaseCard;
 import net.osmand.plus.routepreparationmenu.cards.BaseCard.CardListener;
 import net.osmand.plus.routing.RouteLineDrawInfo;
 import net.osmand.plus.settings.backend.ListStringPreference;
+import net.osmand.plus.settings.fragments.RouteLineAppearanceFragment;
+import net.osmand.plus.settings.fragments.RouteLineAppearanceFragment.HeaderInfo;
+import net.osmand.plus.settings.fragments.RouteLineAppearanceFragment.HeaderUiAdapter;
 import net.osmand.plus.track.AppearanceViewHolder;
 import net.osmand.plus.track.ColorsCard;
 import net.osmand.plus.track.CustomColorBottomSheet.ColorPickerListener;
@@ -39,17 +42,17 @@ import java.util.Arrays;
 import java.util.List;
 
 
-public class RouteLineColorCard extends BaseCard implements CardListener, ColorPickerListener {
+public class RouteLineColorCard extends BaseCard implements CardListener, ColorPickerListener, HeaderInfo {
 
 	private static final int DAY_TITLE_ID = R.string.day;
 	private static final int NIGHT_TITLE_ID = R.string.night;
 
 	private final Fragment targetFragment;
+	private HeaderUiAdapter headerUiAdapter;
 
 	private ColorsCard colorsCard;
 	private ColorTypeAdapter colorAdapter;
 	private RecyclerView groupRecyclerView;
-	private TextView tvColorName;
 	private TextView tvDescription;
 	private View themeToggleContainer;
 	private ViewGroup cardsContainer;
@@ -76,12 +79,14 @@ public class RouteLineColorCard extends BaseCard implements CardListener, ColorP
 	                          @NonNull Fragment targetFragment,
 	                          @NonNull RouteLineDrawInfo routeLineDrawInfo,
 	                          @NonNull DayNightMode initMapTheme,
-	                          @NonNull DayNightMode selectedMapTheme) {
+	                          @NonNull DayNightMode selectedMapTheme,
+	                          @NonNull HeaderUiAdapter headerUiAdapter) {
 		super(mapActivity);
 		this.targetFragment = targetFragment;
 		this.routeLineDrawInfo = routeLineDrawInfo;
 		this.initMapTheme = initMapTheme;
 		this.selectedMapTheme = selectedMapTheme;
+		this.headerUiAdapter = headerUiAdapter;
 	}
 
 	@Override
@@ -91,7 +96,6 @@ public class RouteLineColorCard extends BaseCard implements CardListener, ColorP
 
 	@Override
 	protected void updateContent() {
-		tvColorName = view.findViewById(R.id.color_name);
 		tvDescription = view.findViewById(R.id.description);
 
 		colorAdapter = new ColorTypeAdapter();
@@ -155,8 +159,8 @@ public class RouteLineColorCard extends BaseCard implements CardListener, ColorP
 	}
 
 	private void changeMapTheme(DayNightMode mapTheme) {
-		if (targetFragment instanceof OnMapThemeUpdateListener) {
-			((OnMapThemeUpdateListener) targetFragment).onMapThemeUpdated(mapTheme);
+		if (targetFragment instanceof RouteLineAppearanceFragment) {
+			((RouteLineAppearanceFragment) targetFragment).onMapThemeUpdated(mapTheme);
 		}
 		if (selectedMode == ColorMode.CUSTOM) {
 			Integer color = getRouteLineColor();
@@ -215,19 +219,27 @@ public class RouteLineColorCard extends BaseCard implements CardListener, ColorP
 	}
 
 	private void updateColorItems() {
-		if (targetFragment instanceof OnSelectedColorChangeListener) {
-			((OnSelectedColorChangeListener) targetFragment).onSelectedColorChanged();
+		if (targetFragment instanceof RouteLineAppearanceFragment) {
+			((RouteLineAppearanceFragment) targetFragment).onSelectedColorChanged();
 		}
 		updateColorName();
 	}
 
+	@Override
+	public void onNeedHeaderUpdate() {
+		updateColorName();
+	}
+
 	private void updateColorName() {
+		String title = app.getString(R.string.shared_string_color);
+		String colorName = "";
 		if (selectedMode == ColorMode.DEFAULT) {
-			tvColorName.setText(app.getString(R.string.map_widget_renderer));
+			colorName = app.getString(R.string.map_widget_renderer);
 		} else if (getRouteLineColor() != null) {
 			int colorNameId = ColorDialogs.getColorName(getRouteLineColor());
-			tvColorName.setText(app.getString(colorNameId));
+			colorName = app.getString(colorNameId);
 		}
+		headerUiAdapter.onHeaderUpdate(this, title, colorName);
 	}
 
 	private void updateDescription() {
@@ -348,11 +360,4 @@ public class RouteLineColorCard extends BaseCard implements CardListener, ColorP
 		}
 	}
 
-	public interface OnSelectedColorChangeListener {
-		void onSelectedColorChanged();
-	}
-
-	public interface OnMapThemeUpdateListener {
-		void onMapThemeUpdated(@NonNull DayNightMode mapTheme);
-	}
 }
diff --git a/OsmAnd/src/net/osmand/plus/routing/cards/RouteLineWidthCard.java b/OsmAnd/src/net/osmand/plus/routing/cards/RouteLineWidthCard.java
index d9843f72ea..74177e3890 100644
--- a/OsmAnd/src/net/osmand/plus/routing/cards/RouteLineWidthCard.java
+++ b/OsmAnd/src/net/osmand/plus/routing/cards/RouteLineWidthCard.java
@@ -26,6 +26,8 @@ import net.osmand.plus.activities.MapActivity;
 import net.osmand.plus.helpers.AndroidUiHelper;
 import net.osmand.plus.routepreparationmenu.cards.BaseCard;
 import net.osmand.plus.routing.RouteLineDrawInfo;
+import net.osmand.plus.settings.fragments.RouteLineAppearanceFragment.HeaderInfo;
+import net.osmand.plus.settings.fragments.RouteLineAppearanceFragment.HeaderUiAdapter;
 import net.osmand.plus.track.AppearanceViewHolder;
 import net.osmand.plus.track.TrackAppearanceFragment.OnNeedScrollListener;
 import net.osmand.util.Algorithms;
@@ -33,20 +35,21 @@ import net.osmand.util.Algorithms;
 import java.util.Arrays;
 import java.util.List;
 
-public class RouteLineWidthCard extends BaseCard {
+public class RouteLineWidthCard extends BaseCard implements HeaderInfo {
 
 	private final static int CUSTOM_WIDTH_MIN = 1;
 	private final static int CUSTOM_WIDTH_MAX = 36;
 
 	private RouteLineDrawInfo routeLineDrawInfo;
 	private OnNeedScrollListener onNeedScrollListener;
+	private HeaderUiAdapter headerUiAdapter;
 
 	private WidthMode selectedMode;
 
 	private WidthAdapter widthAdapter;
 	private View sliderContainer;
 	private RecyclerView groupRecyclerView;
-	private TextView tvModeType;
+	private TextView tvSelectedType;
 	private TextView tvDescription;
 
 	private enum WidthMode {
@@ -69,10 +72,12 @@ public class RouteLineWidthCard extends BaseCard {
 
 	public RouteLineWidthCard(@NonNull MapActivity mapActivity,
 	                          @NonNull RouteLineDrawInfo routeLineDrawInfo,
-	                          @NonNull OnNeedScrollListener onNeedScrollListener) {
+	                          @NonNull OnNeedScrollListener onNeedScrollListener,
+	                          @NonNull HeaderUiAdapter headerUiAdapter) {
 		super(mapActivity);
 		this.routeLineDrawInfo = routeLineDrawInfo;
 		this.onNeedScrollListener = onNeedScrollListener;
+		this.headerUiAdapter = headerUiAdapter;
 	}
 
 	@Override
@@ -87,7 +92,8 @@ public class RouteLineWidthCard extends BaseCard {
 		groupRecyclerView.setAdapter(widthAdapter);
 		groupRecyclerView.setLayoutManager(new LinearLayoutManager(app, RecyclerView.HORIZONTAL, false));
 
-		tvModeType = view.findViewById(R.id.width_type);
+		((TextView) view.findViewById(R.id.title)).setText(R.string.select_track_width);
+		tvSelectedType = view.findViewById(R.id.descr);
 		tvDescription = view.findViewById(R.id.description);
 		sliderContainer = view.findViewById(R.id.slider_container);
 		AndroidUiHelper.updateVisibility(view.findViewById(R.id.top_divider), isShowDivider());
@@ -122,8 +128,16 @@ public class RouteLineWidthCard extends BaseCard {
 		return routeLineDrawInfo.getWidth();
 	}
 
+	@Override
+	public void onNeedHeaderUpdate() {
+		updateHeader();
+	}
+
 	private void updateHeader() {
-		tvModeType.setText(app.getString(selectedMode.titleId));
+		String title = app.getString(R.string.select_track_width);
+		String description = app.getString(selectedMode.titleId);
+		tvSelectedType.setText(description);
+		headerUiAdapter.onHeaderUpdate(this, title, description);
 	}
 
 	private void updateDescription() {
diff --git a/OsmAnd/src/net/osmand/plus/settings/fragments/RouteLineAppearanceFragment.java b/OsmAnd/src/net/osmand/plus/settings/fragments/RouteLineAppearanceFragment.java
index 254e1e3d3d..0a12562285 100644
--- a/OsmAnd/src/net/osmand/plus/settings/fragments/RouteLineAppearanceFragment.java
+++ b/OsmAnd/src/net/osmand/plus/settings/fragments/RouteLineAppearanceFragment.java
@@ -11,6 +11,7 @@ import android.widget.FrameLayout;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.ScrollView;
+import android.widget.TextView;
 
 import androidx.activity.OnBackPressedCallback;
 import androidx.annotation.NonNull;
@@ -30,13 +31,13 @@ import net.osmand.plus.helpers.AndroidUiHelper;
 import net.osmand.plus.helpers.enums.DayNightMode;
 import net.osmand.plus.routing.RouteLineDrawInfo;
 import net.osmand.plus.routing.cards.RouteLineColorCard;
-import net.osmand.plus.routing.cards.RouteLineColorCard.OnMapThemeUpdateListener;
-import net.osmand.plus.routing.cards.RouteLineColorCard.OnSelectedColorChangeListener;
 import net.osmand.plus.routing.cards.RouteLineWidthCard;
 import net.osmand.plus.track.CustomColorBottomSheet.ColorPickerListener;
 import net.osmand.plus.track.TrackAppearanceFragment.OnNeedScrollListener;
 
-public class RouteLineAppearanceFragment extends ContextMenuScrollFragment implements ColorPickerListener, OnSelectedColorChangeListener, OnMapThemeUpdateListener {
+import static net.osmand.util.Algorithms.objectEquals;
+
+public class RouteLineAppearanceFragment extends ContextMenuScrollFragment implements ColorPickerListener {
 
 	public static final String TAG = RouteLineAppearanceFragment.class.getName();
 
@@ -48,10 +49,15 @@ public class RouteLineAppearanceFragment extends ContextMenuScrollFragment imple
 	private int toolbarHeightPx;
 	private DayNightMode initMapTheme;
 	private DayNightMode selectedMapTheme;
+	private HeaderUiAdapter headerUiAdapter;
+	private HeaderInfo selectedHeader;
 
 	private View buttonsShadow;
 	private View controlButtons;
 	private View toolbarContainer;
+	private View headerContainer;
+	private TextView headerTitle;
+	private TextView headerDescr;
 
 	private RouteLineColorCard colorCard;
 	private RouteLineWidthCard widthCard;
@@ -123,6 +129,9 @@ public class RouteLineAppearanceFragment extends ContextMenuScrollFragment imple
 		View view = super.onCreateView(inflater, container, savedInstanceState);
 		if (view != null) {
 			toolbarContainer = view.findViewById(R.id.context_menu_toolbar_container);
+			headerContainer = view.findViewById(R.id.header_container);
+			headerTitle = headerContainer.findViewById(R.id.title);
+			headerDescr = headerContainer.findViewById(R.id.descr);
 			buttonsShadow = view.findViewById(R.id.buttons_shadow);
 			controlButtons = view.findViewById(R.id.control_buttons);
 			if (isPortrait()) {
@@ -142,7 +151,7 @@ public class RouteLineAppearanceFragment extends ContextMenuScrollFragment imple
 		setupCards();
 		setupToolbar();
 		setupButtons(view);
-		setupScrollShadow();
+		setupScrollListener();
 		enterAppearanceMode();
 		openMenuHalfScreen();
 		calculateLayout();
@@ -163,13 +172,33 @@ public class RouteLineAppearanceFragment extends ContextMenuScrollFragment imple
 		ViewGroup cardsContainer = getCardsContainer();
 		cardsContainer.removeAllViews();
 
-		colorCard = new RouteLineColorCard(mapActivity, this, routeLineDrawInfo, initMapTheme, selectedMapTheme);
+		colorCard = new RouteLineColorCard(mapActivity, this, routeLineDrawInfo, initMapTheme, selectedMapTheme, getHeaderUiAdapter());
 		cardsContainer.addView(colorCard.build(mapActivity));
 
-		widthCard = new RouteLineWidthCard(mapActivity, routeLineDrawInfo, createScrollListener());
+		widthCard = new RouteLineWidthCard(mapActivity, routeLineDrawInfo, createScrollListener(), getHeaderUiAdapter());
 		cardsContainer.addView(widthCard.build(mapActivity));
 	}
 
+	private HeaderUiAdapter getHeaderUiAdapter() {
+		if (headerUiAdapter == null) {
+			headerUiAdapter = new HeaderUiAdapter() {
+				@Override
+				public void onHeaderUpdate(@NonNull HeaderInfo headerInfo,
+				                           @NonNull String title,
+				                           @NonNull String description) {
+					if (selectedHeader == null) {
+						selectedHeader = headerInfo;
+					}
+					if (objectEquals(selectedHeader, headerInfo)) {
+						headerTitle.setText(title);
+						headerDescr.setText(description);
+					}
+				}
+			};
+		}
+		return headerUiAdapter;
+	}
+
 	private OnNeedScrollListener createScrollListener() {
 		return new OnNeedScrollListener() {
 
@@ -254,7 +283,7 @@ public class RouteLineAppearanceFragment extends ContextMenuScrollFragment imple
 		AndroidUiHelper.updateVisibility(view.findViewById(R.id.buttons_divider), true);
 	}
 
-	private void setupScrollShadow() {
+	private void setupScrollListener() {
 		final View scrollView = getBottomScrollView();
 		scrollView.getViewTreeObserver().addOnScrollChangedListener(new ViewTreeObserver.OnScrollChangedListener() {
 			@Override
@@ -265,6 +294,7 @@ public class RouteLineAppearanceFragment extends ContextMenuScrollFragment imple
 				} else {
 					hideShadowButton();
 				}
+				updateHeaderState();
 			}
 		});
 	}
@@ -283,6 +313,15 @@ public class RouteLineAppearanceFragment extends ContextMenuScrollFragment imple
 				.setDuration(200);
 	}
 
+	private void updateHeaderState() {
+		if (getBottomScrollView().getScrollY() > colorCard.getViewHeight() + headerTitle.getBottom()) {
+			selectedHeader = widthCard;
+		} else {
+			selectedHeader = colorCard;
+		}
+		selectedHeader.onNeedHeaderUpdate();
+	}
+
 	private void initVisibleRect() {
 		MapActivity ctx = getMapActivity();
 		int screenHeight = AndroidUtils.getScreenHeight(ctx);
@@ -385,7 +424,6 @@ public class RouteLineAppearanceFragment extends ContextMenuScrollFragment imple
 		colorCard.onColorSelected(prevColor, newColor);
 	}
 
-	@Override
 	public void onSelectedColorChanged() {
 		updateColorItems();
 	}
@@ -418,7 +456,6 @@ public class RouteLineAppearanceFragment extends ContextMenuScrollFragment imple
 		}
 	}
 
-	@Override
 	public void onMapThemeUpdated(@NonNull DayNightMode mapTheme) {
 		changeMapTheme(mapTheme);
 		updateColorItems();
@@ -435,4 +472,14 @@ public class RouteLineAppearanceFragment extends ContextMenuScrollFragment imple
 	public interface OnApplyRouteLineListener {
 		void applyRouteLineAppearance(@NonNull RouteLineDrawInfo routeLineDrawInfo);
 	}
+
+	public interface HeaderUiAdapter {
+		void onHeaderUpdate(@NonNull HeaderInfo headerInfo,
+		                    @NonNull String title,
+		                    @NonNull String description);
+	}
+
+	public interface HeaderInfo {
+		void onNeedHeaderUpdate();
+	}
 }