Merge pull request #2176 from yausername/fixScrollOnBlank

fixed scroll w/ comments and related streams disabled

app/src/main/java/org/schabi/newpipe/fragments/EmptyFragment.java

@@ -0,0 +1,17 @@
+package org.schabi.newpipe.fragments;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import org.schabi.newpipe.BaseFragment;
+import org.schabi.newpipe.R;
+
+public class EmptyFragment extends BaseFragment {
+    @Override
+    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_empty, container, false);
+    }
+}

app/src/main/java/org/schabi/newpipe/fragments/detail/VideoDetailFragment.java

@@ -65,6 +65,7 @@ import org.schabi.newpipe.extractor.stream.StreamType;
 import org.schabi.newpipe.extractor.stream.VideoStream;
 import org.schabi.newpipe.fragments.BackPressable;
 import org.schabi.newpipe.fragments.BaseStateFragment;
+import org.schabi.newpipe.fragments.EmptyFragment;
 import org.schabi.newpipe.fragments.list.comments.CommentsFragment;
 import org.schabi.newpipe.fragments.list.videos.RelatedVideosFragment;
 import org.schabi.newpipe.info_list.InfoItemDialog;
@@ -179,6 +180,7 @@ public class VideoDetailFragment
 
     private static final String COMMENTS_TAB_TAG = "COMMENTS";
     private static final String RELATED_TAB_TAG = "NEXT VIDEO";
+    private static final String EMPTY_TAB_TAG = "EMPTY TAB";
 
     private AppBarLayout appBarLayout;
     private  ViewPager viewPager;
@@ -824,6 +826,10 @@ public class VideoDetailFragment
             pageAdapter.addFragment(new Fragment(), RELATED_TAB_TAG);
         }
 
+        if(pageAdapter.getCount() == 0){
+            pageAdapter.addFragment(new EmptyFragment(), EMPTY_TAB_TAG);
+        }
+
         pageAdapter.notifyDataSetUpdate();
 
         if(pageAdapter.getCount() < 2){

app/src/main/res/layout-large-land/fragment_video_detail.xml

@@ -179,6 +179,7 @@
 					android:id="@+id/detail_content_root_hiding"
 					android:layout_width="match_parent"
 					android:layout_height="match_parent"
+					android:paddingBottom="10dp"
 					android:layout_below="@+id/detail_title_root_layout"
 					android:orientation="vertical"
 					android:visibility="gone"
@@ -492,6 +493,7 @@
         android:id="@+id/relatedStreamsLayout"
 		android:layout_width="0dp"
 		android:layout_height="match_parent"
+		android:layout_marginTop="10dp"
 		android:layout_weight="3">
 
 	</FrameLayout>

app/src/main/res/layout/fragment_comments.xml

@@ -3,8 +3,7 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
+    android:layout_height="match_parent">
-    android:paddingTop="10dp">
 
     <android.support.v7.widget.RecyclerView
         android:id="@+id/items_list"

app/src/main/res/layout/fragment_empty.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <android.support.v4.widget.NestedScrollView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <include
+            android:id="@+id/empty_state_view"
+            layout="@layout/list_empty_view"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_horizontal"
+            android:layout_marginTop="90dp"
+            tools:visibility="visible"/>
+
+    </android.support.v4.widget.NestedScrollView>
+
+    <View
+        android:layout_width="match_parent"
+        android:layout_height="4dp"
+        android:layout_alignParentTop="true"
+        android:background="?attr/toolbar_shadow_drawable"
+        android:visibility="gone" />
+
+</RelativeLayout>

app/src/main/res/layout/fragment_related_streams.xml

@@ -3,8 +3,7 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
+    android:layout_height="match_parent">
-    android:paddingTop="10dp">
 
     <android.support.v7.widget.RecyclerView
         android:id="@+id/items_list"

app/src/main/res/layout/fragment_video_detail.xml

@@ -177,6 +177,7 @@
                     android:id="@+id/detail_content_root_hiding"
                     android:layout_width="match_parent"
                     android:layout_height="match_parent"
+                    android:paddingBottom="10dp"
                     android:layout_below="@+id/detail_title_root_layout"
                     android:orientation="vertical"
                     android:visibility="gone"