Updating TextField value outside onValueChange is reverted to previous value on user input [172868890]

Fixed

Bug

Status Update

No update yet.

Description

al...@mercari.com

created issue #1

Nov 10, 2020 04:38AM

I have some business logic that clears the text input, however upon typing again, onValueChange recovers the previous value.

var value by remember { mutableStateOf("") }
OutlinedTextField(
    value = value,
    onValueChange = {
        value = it
    },
)
Button(onClick = {
    value = ""
}) {
    Text("Clear")
}

Replication steps:

user types "abc" textfield becomes: [ abc ]
user presses clear textfield becomes: [ ]
user types d expected: [ d ] actual: [ abcd ]

Comments

rp...@gmail.com <rp...@gmail.com> #2Nov 10, 2020 09:24AM

Hello,

This issue report has been forwarded to the Vertex AI Workbench Engineering team so that they may investigate it, but there is no ETA for a resolution today. Future updates regarding this issue will be provided here.

so...@google.com <so...@google.com> #3Nov 10, 2020 10:54AM

I've just tested on the tip of the branch using the exact code snippet you mentioned in the bug, but I don't encountered any issues.

Could you please add the whole code snippet that you used?

And which version of Compose was it?

al...@mercari.com <al...@mercari.com> #4Nov 10, 2020 11:18AM

I can replicate it on alpha04 and alpha06

Please check sample project attached with the plain snippet above.

MyComposeApplication 2.zip

34 MB

Download

al...@mercari.com <al...@mercari.com> #5Nov 10, 2020 11:22AM

video clip of bug, built from above project

device-2020-11-10-202200.mp4

392 KB

Download

kt...@gmail.com <kt...@gmail.com> #6Nov 10, 2020 11:47AM

I've encountered the same problem while doing the "Using State in Compose" Codelabs provided by Google. In the codelab there is a text field with add button next to it that behaves the same way as described above.

At first I thought that I made a mistake while completing the codelab, but then I tried the provided ready made solution and it had the same bug.

The problem happens when running the codelab with Samsung Galaxy A20e phone. I tried it with an emulator and it works correctly there. So there is some difference between using an emulator and a real phone.

al...@mercari.com <al...@mercari.com> #7Nov 11, 2020 10:09AM

Ah.

I was able to replicate it on a Samsung S20 device. I just tried it on emulator and I'm not able to replicate it there as well.

si...@google.com <si...@google.com> #8Nov 11, 2020 05:04PM

might be related to b/172868890

si...@google.com <si...@google.com> Nov 12, 2020 07:13PM

Reassigned to si...@google.com.

si...@google.com <si...@google.com> Nov 13, 2020 04:50PM

Accepted by si...@google.com.

si...@google.com <si...@google.com> #9Nov 16, 2020 11:15PM

tested with the CL https://android-review.googlesource.com/c/platform/frameworks/support/+/1500556 the issue did not happen on

Device: Samsung S8
Android: Android 9
Build: PPR1.180610.011.G950USQS8DTJ3

when it merges (in the next release) can you please double check? I will mark the ticket as fixed once the changes are merged.

al...@mercari.com <al...@mercari.com> #10Nov 17, 2020 01:13AM

awesome! thanks for the fix.

si...@google.com <si...@google.com> Nov 17, 2020 06:02PM

Marked as fixed.