@Override
protected void onDraw(Canvas canvas) {
final int saveCount = canvas.save();
Rect rect = mDrawable.getBounds();
int l = getPaddingLeft() + (getMeasuredWidth() - mDrawable.getIntrinsicWidth()) / 2;
canvas.translate(l, getPaddingTop());
canvas.scale(mScale, mScale, rect.exactCenterX(), rect.exactCenterY());
mDrawable.draw(canvas);
canvas.restoreToCount(saveCount);
}
