From 681f22c88e401f68eafa06f7c7bedf898de7a111 Mon Sep 17 00:00:00 2001
From: Dmitry Donskoy <donskdmitry@mail.ru>
Date: Thu, 26 Jul 2018 13:08:27 +0300
Subject: [PATCH] [android] Added parent assertion

---
 .../mapswithme/maps/widget/PlaceholderView.java  | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/android/src/com/mapswithme/maps/widget/PlaceholderView.java b/android/src/com/mapswithme/maps/widget/PlaceholderView.java
index bed568ae91..4697f7696a 100644
--- a/android/src/com/mapswithme/maps/widget/PlaceholderView.java
+++ b/android/src/com/mapswithme/maps/widget/PlaceholderView.java
@@ -9,12 +9,14 @@ import android.support.annotation.DrawableRes;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.annotation.StringRes;
+import android.support.v4.widget.NestedScrollView;
 import android.util.AttributeSet;
-import android.view.Gravity;
 import android.view.LayoutInflater;
 import android.view.View;
+import android.view.ViewParent;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
+import android.widget.ScrollView;
 import android.widget.TextView;
 
 import com.mapswithme.maps.R;
@@ -107,6 +109,7 @@ public class PlaceholderView extends LinearLayout
   {
     super.onFinishInflate();
 
+    checkParent();
     mImage = findViewById(R.id.image);
     mTitle = findViewById(R.id.title);
     mSubtitle = findViewById(R.id.subtitle);
@@ -114,6 +117,17 @@ public class PlaceholderView extends LinearLayout
     setupDefaultContent();
   }
 
+  private void checkParent()
+  {
+    ViewParent current = getParent();
+    while (current != null)
+    {
+      if (current instanceof NestedScrollView || current instanceof ScrollView)
+        throw new IllegalStateException("PlaceholderView can not be attached to NestedScrollView or ScrollView");
+      current = current.getParent();
+    }
+  }
+
   private void setupDefaultContent()
   {
     if (isDefaultValueValid(mImage, mImgSrcDefault))