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Small details that build taste in Flutter.
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Don't show the same snack bar twice
Don't show the same snack bar twice. If it's already on screen, shake it instead:
A duplicate tells the user nothing new. The shake says "this just happened again" without piling up copies of the same message.
One more detail: if that snack bar is on screen but stacked behind a newer one, bring it to the front and reset its timer, so it stays long enough to read again.
The video is from bunpod.app, an open-source app. Its expressive_snack package already handles both, plus RTL support, icons, and more. Copy it as is or adapt it to your design.