Why my drawShadow‘s rendering is so poor?

# compose

[CodeIdeal]

Why my drawShadow‘s rendering is so poor?

[manueldidonna]

Try to add a background to your composable

[Andrey Kulikov]

there is an optimization in the android system that draws shadows like this when the alpha is 1f. probably of you will write drawShadow(..., opacity = 0.99f) it will look like in the preview. but this shadow what you really want? usually you have a background and a shadow on the sides of it's background, like with Buttons for example

[CodeIdeal]

thx，I'm a newbie on compose, and just practice follow the video steps. 😂