title: Android: How to create YouTube-like VR-controls?
body: <p>I am trying to develop a VR video player using latest Google VR SDK for Android (v1.0.3), but there is no high-level API to build VR playback controls.</p>
  
  <p>YouTube VR player uses old version of gvr toolkit and renders controls (for example, <code>com.google.android.libraries.youtube.common.ui.TouchImageView</code>) in some way. </p>
  
  <p><img src="https://i.stack.imgur.com/s54Mi.jpg" alt="enter image description here"></p>
  
  <p>What is the best way to implement such controls using latest VR SDK? Do I need to use custom renderer with OpenGL or NDK?</p>
  
  <p>I would be very grateful for implementation details.</p>