material-components / material-components/material-components-android
[AppBarLayout] liftOnScroll=true does not work with WebView
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bug
Widget: TopAppBar
- Dominant language
- Java
- Stars
- 17.4k
- Forks
- 3.2k
- PR merge metrics
- No merged PRs in 30d
Description
**Description:**
Consider the following code:
```xml
```
AppBarLayout does not change elevation on scroll.
**Expected behavior:**
AppBar should change elevation on scroll.
**Android API version:** Tested in API 30
**Material Library version:** 1.6.1
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 with AppBarLayout's liftOnScroll handling and CoordinatorLayout's ScrollingViewBehavior using the provided XML with a WebView on API 30. Reproduce the scroll and compare the AppBar elevation with the expected behavior. Done means the AppBar changes elevation when the WebView scrolls.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- android
- Domain
- mobile
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 42/100