Shadow should be shown below the "Save/Cancel" buttons (when content is below buttons);

Add confirmation dialog before deleting online routing;
fix descrease padding below scroll buttons for all blocks;
fix padding of results container;
minor fixes;

OsmAnd/res/layout/online_routing_engine_fragment.xml

@@ -1,9 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:background="?attr/list_background_color"
-    android:orientation="vertical">
+    android:background="?attr/list_background_color">
 
     <com.google.android.material.appbar.AppBarLayout
         android:id="@+id/appbar"
@@ -15,21 +14,41 @@
     </com.google.android.material.appbar.AppBarLayout>
 
     <ScrollView
+        android:id="@+id/segments_scroll"
         android:layout_width="match_parent"
-        android:layout_height="0dp"
-        android:layout_weight="1">
+        android:layout_height="match_parent"
+        android:layout_marginBottom="@dimen/dialog_button_ex_height">
 
         <LinearLayout
             android:id="@+id/segments_container"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:orientation="vertical" />
+            android:orientation="vertical"
+            android:paddingTop="@dimen/dialog_button_ex_height"
+            android:paddingBottom="@dimen/context_menu_buttons_bottom_height" />
 
     </ScrollView>
 
+    <LinearLayout
+        android:id="@+id/control_buttons"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_gravity="bottom"
+        android:orientation="vertical">
+
+        <androidx.appcompat.widget.AppCompatImageView
+            android:id="@+id/buttons_shadow"
+            android:layout_width="match_parent"
+            android:layout_height="8dp"
+            android:layout_gravity="bottom"
+            android:background="@drawable/shadow" />
+
         <include
             layout="@layout/bottom_buttons"
             android:layout_width="match_parent"
-        android:layout_height="@dimen/dialog_button_ex_height" />
+            android:layout_height="@dimen/dialog_button_ex_height"
+            android:layout_gravity="bottom" />
 
-</LinearLayout>
+    </LinearLayout>
+
+</FrameLayout>

OsmAnd/res/layout/online_routing_preference_segment.xml

@@ -164,36 +164,4 @@
         tools:visibility="visible"
         android:visibility="gone" />
 
-    <LinearLayout
-        android:id="@+id/result_container"
-        android:layout_width="match_parent"
-        android:layout_height="@dimen/setting_list_item_group_height"
-        android:orientation="horizontal"
-        tools:visibility="visible"
-        android:visibility="gone">
-
-        <androidx.appcompat.widget.AppCompatImageView
-            android:id="@+id/result_icon"
-            android:layout_width="@dimen/standard_icon_size"
-            android:layout_height="@dimen/standard_icon_size"
-            android:layout_gravity="center_vertical"
-            android:layout_marginRight="@dimen/content_padding"
-            android:layout_marginLeft="@dimen/content_padding"
-            android:tint="?attr/default_icon_color"
-            tools:src="@drawable/ic_action_gdirections_dark" />
-
-        <net.osmand.plus.widgets.TextViewEx
-            android:id="@+id/result_text"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="start|center_vertical"
-            android:letterSpacing="@dimen/description_letter_spacing"
-            android:singleLine="true"
-            android:textColor="?android:attr/textColorPrimary"
-            android:textSize="@dimen/default_list_text_size"
-            osmand:typeface="@string/font_roboto_regular"
-            tools:text="OK" />
-
-    </LinearLayout>
-
 </LinearLayout>

OsmAnd/src/net/osmand/plus/onlinerouting/ui/OnlineRoutingCard.java

@@ -25,8 +25,6 @@ import net.osmand.plus.helpers.AndroidUiHelper;
 import net.osmand.plus.mapcontextmenu.other.HorizontalSelectionAdapter;
 import net.osmand.plus.mapcontextmenu.other.HorizontalSelectionAdapter.HorizontalSelectionAdapterListener;
 import net.osmand.plus.mapcontextmenu.other.HorizontalSelectionAdapter.HorizontalSelectionItem;
-import net.osmand.plus.onlinerouting.VehicleType;
-import net.osmand.plus.onlinerouting.engine.OnlineRoutingEngine;
 import net.osmand.plus.routepreparationmenu.cards.BaseCard;
 import net.osmand.plus.settings.backend.ApplicationMode;
 import net.osmand.plus.widgets.OsmandTextFieldBoxes;
@@ -137,23 +135,15 @@ public class OnlineRoutingCard extends BaseCard {
 				if (callback.processResult(item)) {
 					adapter.setSelectedItem(item);
 				}
-				Object obj = item.getObject();
-				updateBottomMarginSelectionMenu(obj);
 			}
 		});
-		Object item = adapter.getItemByTitle(selectedItemTitle).getObject();
-		updateBottomMarginSelectionMenu(item);
 		rvSelectionMenu.setAdapter(adapter);
 	}
 
-	private void updateBottomMarginSelectionMenu(Object item) {
-		if (item instanceof VehicleType) {
-			VehicleType vt = (VehicleType) item;
-			boolean hasPadding = vt.equals(OnlineRoutingEngine.CUSTOM_VEHICLE);
+	private void updateBottomMarginSelectionMenu() {
 		ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams) rvSelectionMenu.getLayoutParams();
 		int contentPadding = app.getResources().getDimensionPixelSize(R.dimen.content_padding);
-			params.bottomMargin = hasPadding ? contentPadding : 0;
-		}
+		params.bottomMargin = isVisibleViewsBelowSelectionMenu() ? contentPadding : 0;
 	}
 
 	public void setDescription(@NonNull String description) {
@@ -230,10 +220,20 @@ public class OnlineRoutingCard extends BaseCard {
 
 	private void showElements(View... views) {
 		AndroidUiHelper.setVisibility(View.VISIBLE, views);
+		updateBottomMarginSelectionMenu();
 	}
 
 	private void hideElements(View... views) {
 		AndroidUiHelper.setVisibility(View.GONE, views);
+		updateBottomMarginSelectionMenu();
+	}
+
+	private boolean isVisibleViewsBelowSelectionMenu() {
+		return isVisible(tvDescription) || isVisible(fieldBoxContainer) || isVisible(button);
+	}
+
+	public boolean isVisible(View view) {
+		return view.getVisibility() == View.VISIBLE;
 	}
 
 	public void setOnTextChangedListener(@Nullable OnTextChangedListener onTextChangedListener) {

OsmAnd/src/net/osmand/plus/onlinerouting/ui/OnlineRoutingEngineFragment.java

@@ -14,6 +14,7 @@ import android.view.View.OnClickListener;
 import android.view.ViewGroup;
 import android.view.ViewTreeObserver;
 import android.view.ViewTreeObserver.OnGlobalLayoutListener;
+import android.view.ViewTreeObserver.OnScrollChangedListener;
 import android.widget.FrameLayout;
 import android.widget.ImageView;
 import android.widget.ScrollView;
@@ -23,6 +24,7 @@ import androidx.activity.OnBackPressedCallback;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.widget.AppCompatImageView;
 import androidx.appcompat.widget.Toolbar;
 import androidx.fragment.app.FragmentActivity;
 import androidx.fragment.app.FragmentManager;
@@ -82,7 +84,9 @@ public class OnlineRoutingEngineFragment extends BaseOsmAndFragment {
 	private View testResultsContainer;
 	private View saveButton;
 	private ScrollView scrollView;
+	private AppCompatImageView buttonsShadow;
 	private OnGlobalLayoutListener onGlobalLayout;
+	private OnScrollChangedListener onScroll;
 	private boolean isKeyboardShown = false;
 
 	private OnlineRoutingEngine engine;
@@ -112,7 +116,6 @@ public class OnlineRoutingEngineFragment extends BaseOsmAndFragment {
 		});
 	}
 
-	@SuppressLint("ClickableViewAccessibility")
 	@Nullable
 	@Override
 	public View onCreateView(@NonNull LayoutInflater inflater,
@@ -121,7 +124,8 @@ public class OnlineRoutingEngineFragment extends BaseOsmAndFragment {
 		view = getInflater().inflate(
 				R.layout.online_routing_engine_fragment, container, false);
 		segmentsContainer = (ViewGroup) view.findViewById(R.id.segments_container);
-		scrollView = (ScrollView) segmentsContainer.getParent();
+		scrollView = (ScrollView) view.findViewById(R.id.segments_scroll);
+		buttonsShadow = (AppCompatImageView) view.findViewById(R.id.buttons_shadow);
 		if (Build.VERSION.SDK_INT >= 21) {
 			AndroidUtils.addStatusBarPadding21v(getContext(), view);
 		}
@@ -138,67 +142,9 @@ public class OnlineRoutingEngineFragment extends BaseOsmAndFragment {
 		generateUniqueNameIfNeeded();
 		updateCardViews(nameCard, typeCard, vehicleCard, exampleCard);
 
-		scrollView.setOnTouchListener(new View.OnTouchListener() {
-			int scrollViewY = 0;
-
-			@Override
-			public boolean onTouch(View v, MotionEvent event) {
-				int y = scrollView.getScrollY();
-				if (isKeyboardShown && scrollViewY != y) {
-					scrollViewY = y;
-					View focus = mapActivity.getCurrentFocus();
-					if (focus != null) {
-						AndroidUtils.hideSoftKeyboard(mapActivity, focus);
-						focus.clearFocus();
-					}
-				}
-				return false;
-			}
-		});
-
-		onGlobalLayout = new ViewTreeObserver.OnGlobalLayoutListener() {
-			private int layoutHeightPrevious;
-			private int layoutHeightMin;
-
-			@Override
-			public void onGlobalLayout() {
-				if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
-					view.getViewTreeObserver().removeOnGlobalLayoutListener(this);
-				} else {
-					view.getViewTreeObserver().removeGlobalOnLayoutListener(this);
-				}
-
-				Rect visibleDisplayFrame = new Rect();
-				view.getWindowVisibleDisplayFrame(visibleDisplayFrame);
-				int layoutHeight = visibleDisplayFrame.bottom;
-
-				if (layoutHeight < layoutHeightPrevious) {
-					isKeyboardShown = true;
-					layoutHeightMin = layoutHeight;
-				} else {
-					isKeyboardShown = layoutHeight == layoutHeightMin;
-				}
-
-				if (layoutHeight != layoutHeightPrevious) {
-					FrameLayout.LayoutParams rootViewLayout = (FrameLayout.LayoutParams) view.getLayoutParams();
-					rootViewLayout.height = layoutHeight;
-					view.requestLayout();
-					layoutHeightPrevious = layoutHeight;
-				}
-
-				view.post(new Runnable() {
-					@Override
-					public void run() {
-						view.getViewTreeObserver().addOnGlobalLayoutListener(onGlobalLayout);
-					}
-				});
-
-			}
-		};
-
-		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
-			view.getViewTreeObserver().addOnGlobalLayoutListener(onGlobalLayout);
-		}
+		showShadowBelowButtons();
+		showButtonsAboveKeyboard();
+		hideKeyboardOnScroll();
 
 		return view;
 	}
@@ -223,8 +169,7 @@ public class OnlineRoutingEngineFragment extends BaseOsmAndFragment {
 			actionBtn.setOnClickListener(new OnClickListener() {
 				@Override
 				public void onClick(View v) {
-					onDeleteEngine();
-					dismiss();
+					delete(mapActivity);
 				}
 			});
 		} else {
@@ -391,7 +336,7 @@ public class OnlineRoutingEngineFragment extends BaseOsmAndFragment {
 	private void setupResultsContainer() {
 		testResultsContainer = getInflater().inflate(
 				R.layout.bottom_sheet_item_with_descr_64dp, segmentsContainer, false);
-		testResultsContainer.setVisibility(View.INVISIBLE);
+		testResultsContainer.setVisibility(View.GONE);
 		segmentsContainer.addView(testResultsContainer);
 	}
 
@@ -481,6 +426,22 @@ public class OnlineRoutingEngineFragment extends BaseOsmAndFragment {
 		helper.deleteEngine(engine);
 	}
 
+	private void delete(Activity activity) {
+		if (engine != null) {
+			AlertDialog.Builder builder = new AlertDialog.Builder(UiUtilities.getThemedContext(activity, isNightMode()));
+			builder.setMessage(getString(R.string.delete_online_routing_engine));
+			builder.setNegativeButton(R.string.shared_string_no, null);
+			builder.setPositiveButton(R.string.shared_string_yes, new DialogInterface.OnClickListener() {
+				@Override
+				public void onClick(DialogInterface dialog, int which) {
+					onDeleteEngine();
+					dismiss();
+				}
+			});
+			builder.create().show();
+		}
+	}
+
 	private boolean isEditingMode() {
 		return editedEngineKey != null;
 	}
@@ -529,6 +490,12 @@ public class OnlineRoutingEngineFragment extends BaseOsmAndFragment {
 					tvTitle.setText(String.format(getString(R.string.message_server_error), message));
 				}
 				tvDescription.setText(location.getName());
+				scrollView.post(new Runnable() {
+					@Override
+					public void run() {
+						scrollView.scrollTo(0, scrollView.getChildAt(0).getBottom());
+					}
+				});
 			}
 		});
 	}
@@ -632,11 +599,8 @@ public class OnlineRoutingEngineFragment extends BaseOsmAndFragment {
 	@Override
 	public void onDestroyView() {
 		super.onDestroyView();
-		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
-			view.getViewTreeObserver().removeOnGlobalLayoutListener(onGlobalLayout);
-		} else {
-			view.getViewTreeObserver().removeGlobalOnLayoutListener(onGlobalLayout);
-		}
+		removeOnGlobalLayoutListener();
+		removeOnScrollListener();
 	}
 
 	@Override
@@ -716,4 +680,127 @@ public class OnlineRoutingEngineFragment extends BaseOsmAndFragment {
 					.addToBackStack(TAG).commitAllowingStateLoss();
 		}
 	}
+
+	@SuppressLint("ClickableViewAccessibility")
+	private void hideKeyboardOnScroll() {
+		scrollView.setOnTouchListener(new View.OnTouchListener() {
+			int scrollViewY = 0;
+
+			@Override
+			public boolean onTouch(View v, MotionEvent event) {
+				int y = scrollView.getScrollY();
+				if (isKeyboardShown && scrollViewY != y) {
+					scrollViewY = y;
+					View focus = mapActivity.getCurrentFocus();
+					if (focus != null) {
+						AndroidUtils.hideSoftKeyboard(mapActivity, focus);
+						focus.clearFocus();
+					}
+				}
+				return false;
+			}
+		});
+	}
+
+	private void showShadowBelowButtons() {
+		if (onScroll != null) {
+			scrollView.getViewTreeObserver().addOnScrollChangedListener(onScroll);
+		} else {
+			initShowShadowOnScrollListener();
+			showShadowBelowButtons();
+		}
+	}
+
+	private void showButtonsAboveKeyboard() {
+		if (onGlobalLayout != null) {
+			if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
+				view.getViewTreeObserver().addOnGlobalLayoutListener(onGlobalLayout);
+			}
+		} else {
+			initShowButtonsOnGlobalListener();
+			showButtonsAboveKeyboard();
+		}
+	}
+
+	private void initShowShadowOnScrollListener() {
+		onScroll = new OnScrollChangedListener() {
+			@Override
+			public void onScrollChanged() {
+				boolean scrollToBottomAvailable = scrollView.canScrollVertically(1);
+				if (scrollToBottomAvailable) {
+					showShadowButton();
+				} else {
+					hideShadowButton();
+				}
+			}
+		};
+	}
+
+	private void initShowButtonsOnGlobalListener() {
+		onGlobalLayout = new ViewTreeObserver.OnGlobalLayoutListener() {
+			private int layoutHeightPrevious;
+			private int layoutHeightMin;
+
+			@Override
+			public void onGlobalLayout() {
+				if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
+					view.getViewTreeObserver().removeOnGlobalLayoutListener(this);
+				} else {
+					view.getViewTreeObserver().removeGlobalOnLayoutListener(this);
+				}
+
+				Rect visibleDisplayFrame = new Rect();
+				view.getWindowVisibleDisplayFrame(visibleDisplayFrame);
+				int layoutHeight = visibleDisplayFrame.bottom;
+
+				if (layoutHeight < layoutHeightPrevious) {
+					isKeyboardShown = true;
+					layoutHeightMin = layoutHeight;
+				} else {
+					isKeyboardShown = layoutHeight == layoutHeightMin;
+				}
+
+				if (layoutHeight != layoutHeightPrevious) {
+					FrameLayout.LayoutParams rootViewLayout = (FrameLayout.LayoutParams) view.getLayoutParams();
+					rootViewLayout.height = layoutHeight;
+					view.requestLayout();
+					layoutHeightPrevious = layoutHeight;
+				}
+
+				view.post(new Runnable() {
+					@Override
+					public void run() {
+						view.getViewTreeObserver().addOnGlobalLayoutListener(onGlobalLayout);
+					}
+				});
+
+			}
+		};
+	}
+
+	private void removeOnScrollListener() {
+		scrollView.getViewTreeObserver().removeOnScrollChangedListener(onScroll);
+	}
+
+	private void removeOnGlobalLayoutListener() {
+		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
+			view.getViewTreeObserver().removeOnGlobalLayoutListener(onGlobalLayout);
+		} else {
+			view.getViewTreeObserver().removeGlobalOnLayoutListener(onGlobalLayout);
+		}
+	}
+
+	private void showShadowButton() {
+		buttonsShadow.setVisibility(View.VISIBLE);
+		buttonsShadow.animate()
+				.alpha(0.8f)
+				.setDuration(200)
+				.setListener(null);
+	}
+
+	private void hideShadowButton() {
+		buttonsShadow.animate()
+				.alpha(0f)
+				.setDuration(200);
+	}
 }