material-components / material-components/material-components-android
[Transition] MaterialSharedAxis / MaterialFadeThrough ignore the `transitionGroup` attribute
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- Java
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Description
**Description:** `MaterialSharedAxis` and `MaterialFadeThrough` do not respect the `transitionGroup` attribute. This leads to broken `TextInputLayouts`. `transitionGroup` is absolutely needed, because of these (closed) bugs:
- #1420
- #1135
- #1175
- #1589
**Expected behavior:** The `transitionGroup` attribute should prevent the transitions from animating child views.
**Android API version:** Android API 30 and Android API S (beta 1)
**Material Library version:** 1.4.0 beta01
**Device:** Pixel 4a 5G / Pixel 3 XL
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by locating the MaterialSharedAxis and MaterialFadeThrough transition implementations and any existing transition tests. Reproduce the behavior described for transitionGroup, then verify that child views are no longer animated when the attribute is set, including the TextInputLayout case.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- android, java
- Domain
- mobile-dev
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100