AnimateContentSize() triggers animation abnormally in LazyColumn [314924642]

Duplicate

of 322525716

Bug

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Description

w2...@gmail.com

created issue #1

Dec 5, 2023 04:29PM

Jetpack Compose version: 1.6.0-beta01

Jetpack Compose component used: androidx.compose.material3:material3:1.2.0-alpha12

Android Studio Build: 2023.1.1

Kotlin version: 1.9.20

Steps to Reproduce or Code Sample to Reproduce:

1.Use the following code：

LazyColumn(Modifier.fillMaxHeight()) {
    for (i in 0..100) {
        item {
            Text(
                text = if (i % 2 == 0) "0" else "000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
                modifier = Modifier.animateContentSize(),
                style = MaterialTheme.typography.titleLarge
            )
        }
    }
}

2.Swipe this list up and down quickly.

Every time sliding brings the Text component into view, it will play an animation that grows from small to large, and may not be fully displayed after the animation ends. This issue does not exist in androidx.compose.material3:material3:1.2.0-alpha12

bug.mp4

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Comments

w2...@gmail.com <w2...@gmail.com> #2Dec 5, 2023 04:51PM

I made a mistake in the last sentence, and the correct one is:

"This issue does not exist in androidx.compose.material3:material3:1.1.2"

Message last modified on Dec 5, 2023 05:04PM

ma...@google.com <ma...@google.com> #3Dec 11, 2023 08:20PM

Can you clarify the behavior that you are expecting? Do you expect the text to show immediately without animation?

w2...@gmail.com <w2...@gmail.com> #4Dec 14, 2023 03:18AM

Yes, animation should be triggered when the size of the text content changes, not every time it comes into view. In addition, the current behavior will lead to incomplete text display after the animation.

Screenshot_2023-12-14-11-17-52-779_com.zhiqingdan.app.jpg

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ti...@google.com <ti...@google.com> #5Jan 2, 2024 07:08PM

Re comment #1:

Could you provide minimal reproducible project please? That'd help us investigate the issue. Thanks!

w2...@gmail.com <w2...@gmail.com> #6Jan 5, 2024 08:00AM

Re comment #5:

Sure. Here's my project folder.

Message last modified on Jan 5, 2024 08:00AM

BugTest.zip

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ay...@gmail.com <ay...@gmail.com> #7Jan 13, 2024 03:03PM

Same problem in material3:1.2.0-beta02
I removed all the calls to animateContentSize in my lazycolumns while waiting for this to be fixed

je...@hq.bill.com <je...@hq.bill.com> #8Jan 16, 2024 09:00PM

I believe there is a similar issue with animateItemPlacement. I reported it here: https://issuetracker.google.com/issues/320521745

Message last modified on Jan 16, 2024 09:01PM

ti...@google.com <ti...@google.com> #9Jan 16, 2024 11:19PM

Reassigned to an...@google.com.

Andrey, is this a known issue? I don't see any lookahead being used in the repro project in comment #6, so I'm passing it on to you.

je...@hq.bill.com <je...@hq.bill.com> #10Feb 7, 2024 08:19PM

1.2.0 went stable today and I think this has been resolved. Try it with the latest version.

an...@google.com <an...@google.com> #11Feb 8, 2024 06:02PM

Status: Duplicate of

322525716

I confirmed this issue was fixed by

https://android-review.googlesource.com/2933952, so marking it as a duplicate

ti...@google.com <ti...@google.com> #12Feb 8, 2024 06:24PM

Thanks for confirming the fix, Andrey.

Issue 314924642

Description

Steps to Reproduce or Code Sample to Reproduce:

Issue summary

Comments

w2...@gmail.com <w2...@gmail.com> #2Dec 5, 2023 04:51PM

ma...@google.com <ma...@google.com> #3Dec 11, 2023 08:20PM

w2...@gmail.com <w2...@gmail.com> #4Dec 14, 2023 03:18AM

ti...@google.com <ti...@google.com> #5Jan 2, 2024 07:08PM

w2...@gmail.com <w2...@gmail.com> #6Jan 5, 2024 08:00AM

ay...@gmail.com <ay...@gmail.com> #7Jan 13, 2024 03:03PM

je...@hq.bill.com <je...@hq.bill.com> #8Jan 16, 2024 09:00PM

ti...@google.com <ti...@google.com> #9Jan 16, 2024 11:19PM

je...@hq.bill.com <je...@hq.bill.com> #10Feb 7, 2024 08:19PM

an...@google.com <an...@google.com> #11Feb 8, 2024 06:02PM

ti...@google.com <ti...@google.com> #12Feb 8, 2024 06:24PM

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