public void setLayerInteractionEnabled(boolean enabled) {
    if (this.enabled != enabled) {
      this.enabled = enabled;
//      setWillNotDraw(!enabled);
      invalidate();
    }
  }
Set whether or not the 3D view layer interaction is enabled.
saklib/src/main/java/com/wanjian/sak/layer/impl/ScalpelFrameLayout.java