code: public void setPickingEnabled(boolean enabled) {
          if (enabled != getPickingEnabled()) {
              if (enabled) {
                  attachComponent(new GVRSphereCollider(getGVRContext()));
              } else {
                  detachComponent(GVRCollider.getComponentType());
              }
          }
      }
docs: Simple, high-level API to enable or disable eye picking for this scene
  object.
  
  The {@linkplain #attachCollider low-level
  API} gives you a lot of control over eye picking, but it does involve an
  awful lot of details. This method
  (and {@link #getPickingEnabled()}) provides a simple boolean property.
  It attaches a GVRSphereCollider to the scene object. If you want more
  accurate picking, you can use {@link #attachComponent(GVRComponent)} to attach a
  mesh collider instead. The mesh collider is more accurate but also
  costs more to compute.
  
  @param enabled
  Should eye picking 'see' this scene object?
  
  @since 2.0.2
  @see GVRSphereCollider
  @see GVRMeshCollider