Super-Flip/Rider — comment on commit b388e2577a862e06ca2379b1587c39c370b5a59f
File: src/com/android/rider/common/RiderView.java line 356
By Super-Flip:

/** 初回起動時、又はクリア時 */
if (size == 0　&& canvas != null) {
Draw(canvas);
Bitmap start = BitmapFactory.decodeResource(getResources(), R.drawable.tap_to_start);
canvas.drawBitmap(start, 40 , mHeight / 2, null);
start.recycle();
}

if(canvas != null) {
mHolder.unlockCanvasAndPost(canvas);