[Android]: append TextInput inside ScrollView doesn't always scroll correctly to the new Item

[freeboub]

Description

On android only, when user add a new TextInput inside a ScrollView, the scrollview is expected to scroll to the new added TextInput. It doesn't always work on android.

Note: I don't know the exact reproduction conditions, but it seems that the added item should be outside of the visible screen.

Steps to reproduce

Create a sample app with a list of inside a .
You should be able to append a new with a button to reproduce the issue.
When a new is added I expect the ScrollView scroll to the newly added

On android this is randomly working. On iOS, It always works.
I had the issue originally on 0.79, but I reproduce it on a react-native only sample on 0.81.0 (see linked repo)

Here is an extract of JSX code:

      <ScrollView>
        <!-- Append a new TextInput -->
        <Pressable onPress={() => {
          setCount(c => c + 1);
        }}>
          <Text>Press me</Text>
        </Pressable>
        <!-- display a list of textInput -->
        {Array.from({length: count}).map((_, i) => (
          <TextInput
            style={{ height:50 }}
            key={i}
            autoFocus={i === count - 1}>    <!-- ensure only the last item added has autofocus (this is also reproduced if autoFocus={true} )-->
              Item {i + 1}
          </TextInput>
        ))}
      </ScrollView>

React Native Version

0.81.0, but also 0.79.1

Affected Platforms

Runtime - Android

Output of npx @react-native-community/cli info

System:
  OS: macOS 15.0
  CPU: (11) arm64 Apple M3 Pro
  Memory: 102.78 MB / 18.00 GB
  Shell:
    version: "5.9"
    path: /bin/zsh
Binaries:
  Node:
    version: 20.18.1
    path: ~/.nvm/versions/node/v20.18.1/bin/node
  Yarn:
    version: 1.22.22
    path: /opt/homebrew/bin/yarn
  npm:
    version: 10.8.2
    path: ~/.nvm/versions/node/v20.18.1/bin/npm
  Watchman:
    version: 2025.06.30.00
    path: /opt/homebrew/bin/watchman
Managers:
  CocoaPods:
    version: 1.16.2
    path: /opt/homebrew/bin/pod
SDKs:
  iOS SDK:
    Platforms:
      - DriverKit 24.2
      - iOS 18.2
      - macOS 15.2
      - tvOS 18.2
      - visionOS 2.2
      - watchOS 11.2
  Android SDK:
    API Levels:
      - "28"
      - "33"
      - "34"
      - "35"
      - "36"
    Build Tools:
      - 26.0.3
      - 30.0.3
      - 33.0.0
      - 33.0.1
      - 34.0.0
      - 35.0.0
      - 36.0.0
    System Images:
      - android-30 | Google APIs ARM 64 v8a
      - android-30 | Google Play ARM 64 v8a
      - android-34 | Google APIs ARM 64 v8a
      - android-35 | Google Play ARM 64 v8a
    Android NDK: 26.1.10909125
IDEs:
  Android Studio: 2025.1 AI-251.25410.109.2511.13665796
  Xcode:
    version: 16.2/16C5032a
    path: /usr/bin/xcodebuild
Languages:
  Java:
    version: 17.0.12
    path: /usr/bin/javac
  Ruby:
    version: 2.6.10
    path: /usr/bin/ruby
npmPackages:
  "@react-native-community/cli":
    installed: 20.0.0
    wanted: 20.0.0
  react:
    installed: 19.1.0
    wanted: 19.1.0
  react-native:
    installed: 0.81.0
    wanted: 0.81.0
  react-native-macos: Not Found
npmGlobalPackages:
  "*react-native*": Not Found
Android:
  hermesEnabled: true
  newArchEnabled: true
iOS:
  hermesEnabled: true
  newArchEnabled: false

Stacktrace or Logs

N/A

MANDATORY Reproducer

https://github.com/freeboub/bug-react-native-Append-TextInput-In-ScrollView

Screenshots and Videos

You can see that the last added TextInput doesn't correctly focus on last item:

bugFocusTextInputScrollView.mp4

[devanshsaini11]

@freeboub This looks like expected behavior. ScrollView won’t automatically scroll to a newly appended child, even if that child receives focus. After you add the new TextInput, explicitly scroll using scrollTo() (or scrollToEnd()), as documented here: https://reactnative.dev/docs/scrollview

[freeboub]

Ok, but if it should not scroll there is an issue here (ie: it scrolls where it is not expected).

Please see this video done with the same sample. In this video you can see that:

• when I add a new view, the scroller scroll to a new position, with the new element added in the bottom of the screen when I add element 20 to 25
• When I add the view 26, the scroller scroll to a new position, but now the scroller scroll to a correct position (the newly added element is over the keyboard) (Edit: after reviewing the video adding the first element like 12 to 14 also produce this behavior)
  So let's say the behavior is not consistent on android

videoScrollAndroid.mp4

To compare, I have also added a video on ios.
I confirm it is also scrolling like the element 20 to 25 on android

videoScrolliOSReduced.mp4