gui: Convert UI to use Fragments

Change-Id: I7269604a1da72e6b22f4bbac31c1f5561660ccf5
Refs: #2646, #2667
diff --git a/app/src/main/res/layout/activity_fragment.xml b/app/src/main/res/layout/activity_fragment.xml
new file mode 100644
index 0000000..98ee139
--- /dev/null
+++ b/app/src/main/res/layout/activity_fragment.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/fragment_container"
+    android:layout_height="match_parent"
+    android:layout_width="match_parent"
+    >
+
+</FrameLayout>
\ No newline at end of file