remove RelativeLayout parent for each individual RecyclerView - adds to complexity of the UI unless RelativeLayout needs to have more child views

replace ScrollView with NestedScrollView as a parent for child scrollable elements(RecyclerViews)

Author: amy6

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

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<android.support.design.widget.CoordinatorLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
@@ -28,20 +29,14 @@
                 android:textColor="#ffffff"
                 android:textSize="30sp" />
 
-
-            <RelativeLayout
+            <android.support.v7.widget.RecyclerView
+                android:id="@+id/recyclerView"
                 android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_weight="1">
-
-                <android.support.v7.widget.RecyclerView
-                    android:id="@+id/recyclerView"
-                    android:layout_width="match_parent"
-                    android:layout_height="match_parent"
-                    android:layout_margin="16dp"
-                    android:elevation="10dp">
-                </android.support.v7.widget.RecyclerView>
-            </RelativeLayout>
+                android:layout_height="match_parent"
+                android:layout_margin="16dp"
+                android:elevation="10dp"
+                android:orientation="horizontal">
+            </android.support.v7.widget.RecyclerView>
 
             <TextView
                 android:layout_width="match_parent"
@@ -53,20 +48,14 @@
                 android:textColor="#ffffff"
                 android:textSize="30sp" />
 
-
-            <RelativeLayout
+            <android.support.v7.widget.RecyclerView
+                android:id="@+id/recyclerView1"
                 android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_weight="1">
-
-                <android.support.v7.widget.RecyclerView
-                    android:id="@+id/recyclerView1"
-                    android:layout_width="match_parent"
-                    android:layout_height="match_parent"
-                    android:layout_margin="16dp"
-                    android:elevation="10dp">
-                </android.support.v7.widget.RecyclerView>
-            </RelativeLayout>
+                android:layout_height="match_parent"
+                android:layout_margin="16dp"
+                android:elevation="10dp"
+                android:orientation="horizontal">
+            </android.support.v7.widget.RecyclerView>
 
             <TextView
                 android:layout_width="match_parent"
@@ -78,20 +67,14 @@
                 android:textColor="#ffffff"
                 android:textSize="30sp" />
 
-
-            <RelativeLayout
+            <android.support.v7.widget.RecyclerView
+                android:id="@+id/recyclerView2"
                 android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_weight="1">
-
-                <android.support.v7.widget.RecyclerView
-                    android:id="@+id/recyclerView2"
-                    android:layout_width="match_parent"
-                    android:layout_height="match_parent"
-                    android:layout_margin="16dp"
-                    android:elevation="10dp">
-                </android.support.v7.widget.RecyclerView>
-            </RelativeLayout>
+                android:layout_height="match_parent"
+                android:layout_margin="16dp"
+                android:elevation="10dp"
+                android:orientation="horizontal">
+            </android.support.v7.widget.RecyclerView>
 
             <TextView
                 android:layout_width="match_parent"
@@ -104,19 +87,14 @@
                 android:textSize="30sp" />
 
 
-            <RelativeLayout
+            <android.support.v7.widget.RecyclerView
+                android:id="@+id/recyclerView3"
                 android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_weight="1">
-
-                <android.support.v7.widget.RecyclerView
-                    android:id="@+id/recyclerView3"
-                    android:layout_width="match_parent"
-                    android:layout_height="match_parent"
-                    android:layout_margin="16dp"
-                    android:elevation="10dp">
-                </android.support.v7.widget.RecyclerView>
-            </RelativeLayout>
+                android:layout_height="match_parent"
+                android:layout_margin="16dp"
+                android:elevation="10dp"
+                android:orientation="horizontal">
+            </android.support.v7.widget.RecyclerView>
 
         </LinearLayout>
 
@@ -131,7 +109,7 @@
         app:itemIconTint="@android:color/white"
         app:itemTextColor="@android:color/white"
         app:layout_behavior="com.example.dhananjay.dailygoals.BottomNavigationBehavior"
-        app:menu="@menu/navigation" />
+        app:menu="@menu/navigation"/>
 
 
 </android.support.design.widget.CoordinatorLayout>