If you need to show a semi-transparent image, use the opacity
argument with AlwaysStoppedAnimation
rather than adding a parent Opacity
widget.
According to the docs, Opacity
could apply the opacity to a group of widgets and therefore a costly offscreen buffer will be used.
Note: the Image
class also has color
and colorBlendMode
arguments that can be used to apply custom color filters:
// Same result as above
Image.asset(
'assets/banner.png',
color: Colors.white.withOpacity(0.5),
colorBlendMode: BlendMode.modulate,
)
To learn more about the Opacity
widget and its alternatives, read the official docs:
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