material-components / material-components/material-components-android

[BottomSheetBehavior] Allow setting state without animation

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#691 2 comments 37 reactions 0 assignees View on GitHub

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feature request Widget: BottomSheet
Dominant language
Java
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Description

Currently setting bottom sheet behavior state will always result in an animation. This is sometimes not desirable, so I'd like an option to set state abruptly, without triggering an animation. Currently I don't see any APIs that would allow me to do that.

See for example https://stackoverflow.com/questions/36181918/bottomsheetbehaviour-setstate-without-animation

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the BottomSheetBehavior entry point and reviewing how its state-setting API currently handles animation. Confirm the intended public API for an abrupt state change and check existing BottomSheetBehavior tests or related state-transition coverage. Done means callers can set the requested state without triggering animation while existing animated behavior remains unchanged.

Written by the indexing model from the issue text.

Assessment

Tech stack
android, java
Domain
mobile
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
42/100

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