Q: Why drawVertices in android canvas need hardware acceleration disabled? As stated in https://stackoverflow.com/a/16257100/3286489, in order for drawVertices to draw something in Android Canvas, it need to disable Hardware acceleration using
setLayerType(View.LAYER_TYPE_SOFTWARE, null);

I check the underlying code, it has this check
    public void drawVertices(@NonNull VertexMode mode, int vertexCount, @NonNull float[] verts,
            int vertOffset, @Nullable float[] texs, int texOffset, @Nullable int[] colors,
            int colorOffset, @Nullable short[] indices, int indexOffset, int indexCount,
            @NonNull Paint paint) {
        checkRange(verts.length, vertOffset, vertexCount);
        if (isHardwareAccelerated()) {
            return;
        }
        // ... codes that perform the drawing
   }

Why can't we use hardware acceleration on it?
It is not mentioned in the Android doc
