Added error template. Use <include layout="@layout/error_template"> t…

…o use it.

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

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <ImageButton
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:src="@drawable/ic_refresh"
+        android:background="?android:selectableItemBackground"
+        android:layout_gravity="center"/>
+
+    <TextView
+        android:id="@+id/error_msg"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        tools:text="Error loading the stuff, tap to retry"
+        android:textAppearance="?android:textAppearanceMedium"
+        android:layout_gravity="center_horizontal"/>
+
+    <TextView
+        android:layout_marginTop="8dp"
+        android:id="@+id/error_hint"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        tools:text="The error loading the stuff might be caused by the thing that happened. Maybe you should try doing the thing with the stuff and it might fix it."
+        android:layout_gravity="center_horizontal"/>
+</LinearLayout>