Добавлен фрагмент для TreeView.

app/src/main/java/ru/volgorobot/vrcatalog/TreeViewFragment.java

@@ -0,0 +1,18 @@
+package ru.volgorobot.vrcatalog;
+
+import android.app.Fragment;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+
+import com.unnamed.b.atv.model.TreeNode;
+import com.unnamed.b.atv.view.AndroidTreeView;
+
+public class TreeViewFragment extends Fragment {
+
+    private AndroidTreeView treeView;
+
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+}

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

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.v7.widget.LinearLayoutCompat
+    xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+</android.support.v7.widget.LinearLayoutCompat>