Improved user info UI

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

 <?xml version="1.0" encoding="utf-8"?>
-<android.support.v4.widget.NestedScrollView 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"
-  android:layout_height="match_parent"
-  android:orientation="vertical">
+  android:layout_height="match_parent">
 
-  <LinearLayout
+  <android.support.design.widget.AppBarLayout
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:animateLayoutChanges="true"
-    android:orientation="vertical">
+    android:layout_height="wrap_content"
+    android:background="#40000000"
+    app:elevation="0dip">
 
-    <android.support.constraint.ConstraintLayout
+    <android.support.design.widget.CollapsingToolbarLayout
       android:layout_width="match_parent"
-      android:layout_height="wrap_content">
+      android:layout_height="wrap_content"
+      app:layout_scrollFlags="scroll">
 
       <ImageView
         android:id="@+id/avatar"
         android:layout_width="match_parent"
-        android:layout_height="0dp"
+        android:layout_height="wrap_content"
+        android:adjustViewBounds="true"
         android:contentDescription="@string/label_avatar"
-        android:scaleType="centerCrop"
-        app:layout_constraintDimensionRatio="H,3:2"
+        android:scaleType="fitXY"
+        app:layout_collapseMode="parallax"
         tools:src="@tools:sample/avatars" />
 
-    </android.support.constraint.ConstraintLayout>
+    </android.support.design.widget.CollapsingToolbarLayout>
+  </android.support.design.widget.AppBarLayout>
+
+  <android.support.v4.widget.NestedScrollView
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    app:layout_behavior="@string/appbar_scrolling_view_behavior">
+
+    <LinearLayout
+      android:layout_width="match_parent"
+      android:layout_height="match_parent"
+      android:animateLayoutChanges="true"
+      android:orientation="vertical">
 
       <LinearLayout style="@style/Widget.Info.Header">
 
@@ -71,7 +85,9 @@
             android:contentDescription="@string/label_ignore_long"
             android:drawableTop="@drawable/ic_eye_off"
             android:text="@string/label_ignore"
-          tools:drawableTint="?colorTextSecondary" />
+            android:visibility="gone"
+            tools:drawableTint="?colorTextSecondary"
+            tools:visibility="visible" />
 
           <android.support.v7.widget.AppCompatButton
             android:id="@+id/action_whois"
@@ -195,3 +211,4 @@
       </LinearLayout>
     </LinearLayout>
   </android.support.v4.widget.NestedScrollView>
+</android.support.design.widget.CoordinatorLayout>