CupertinoTextFormFieldRow with placeholder causes unnecessary scrolling in CupertinoAlertDialog

Screen.Recording.2025-09-01.at.16.48.29.mov

Steps to reproduce

CupertinoTextFormFieldRow with a non-null placeholder parameter causes the dialog content to become scrollable in CupertinoAlertDialog, even when there's sufficient space to display all content without scrolling.

STR:

Create a CupertinoAlertDialog with a CupertinoTextFormFieldRow that has a non-null placeholder
Observe that the dialog content becomes scrollable
Remove the placeholder parameter (set to null)
Observe that the dialog no longer scrolls

Expected results

The content is not scrollable and the placeholder is rendered correctly.

Actual results

The dialog content is scrollable in spite there's more than enough space

Code sample

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return CupertinoApp(
      title: 'Flutter Demo',
      theme: CupertinoThemeData(),
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatelessWidget {
  const MyHomePage({super.key});

  @override
  Widget build(BuildContext context) => CupertinoPageScaffold(
    child: SafeArea(
      child: Column(
        children: [
          CupertinoButton.filled(
            child: Text('With placeholder'),
            onPressed: () {
              showDialog(context, withPlaceholder: true);
            },
          ),
          CupertinoButton.filled(
            child: Text('With NO placeholder'),
            onPressed: () {
              showDialog(context, withPlaceholder: false);
            },
          ),
        ],
      ),
    ),
  );

  void showDialog(BuildContext context, {required bool withPlaceholder}) {
    showCupertinoDialog(
      barrierDismissible: true,
      context: context,
      builder: (BuildContext context) => AlertDialog.adaptive(

        title: Text('Dialog title'),
        content: Form(
          child: CupertinoTextFormFieldRow(
            placeholder: withPlaceholder ? 'Hello' : null,
          ),
        ),
        actions: [
          CupertinoButton(child: Text('Close1'), onPressed: () {
            Navigator.of(context).pop();
          }),
          CupertinoButton(child: Text('Close2'), onPressed: () {
            Navigator.of(context).pop();
          })
        ],
      ),
    );
  }
}

Screenshots or Video

Screenshots / Video demonstration

[Upload media here]

Logs

Any system/framework logs

Flutter Doctor output

Doctor output

~ > flutter doctor -v                
[✓] Flutter (Channel stable, 3.35.2, on macOS 15.6.1 24G90 darwin-arm64, locale en-US) [269ms]
    • Flutter version 3.35.2 on channel stable at /Users/ilias/Library/Flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 05db968908 (7 days ago), 2025-08-25 10:21:35 -0700
    • Engine revision a8bfdfc394
    • Dart version 3.9.0
    • DevTools version 2.48.0
    • Feature flags: enable-web, enable-linux-desktop, enable-macos-desktop, enable-windows-desktop, enable-android, enable-ios, cli-animations,
      enable-lldb-debugging

[✓] Android toolchain - develop for Android devices (Android SDK version 36.0.0) [934ms]
    • Android SDK at /Users/ilias/Library/Android/sdk
    • Emulator version 36.1.9.0 (build_id 13823996) (CL:N/A)
    • Platform android-36, build-tools 36.0.0
    • ANDROID_HOME = /Users/ilias/Library/Android/sdk
    • Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
      This is the JDK bundled with the latest Android Studio installation on this machine.
      To manually set the JDK path, use: `flutter config --jdk-dir="path/to/jdk"`.
    • Java version OpenJDK Runtime Environment (build 21.0.6+-13391695-b895.109)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 16.4) [558ms]
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 16F6
    • CocoaPods version 1.16.2

[✓] Chrome - develop for the web [66ms]
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2025.1) [66ms]
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 21.0.6+-13391695-b895.109)

[✓] IntelliJ IDEA Community Edition (version 2025.1.4.1) [65ms]
    • IntelliJ at /Applications/IntelliJ IDEA CE.app
    • Flutter plugin version 86.0.2
    • Dart plugin version 251.27812.12

[✓] Connected device (5 available) [5.7s]
    • sdk gphone64 arm64 (mobile) • emulator-5554                        • android-arm64  • Android 16 (API 36) (emulator)
    • Ilias (wireless) (mobile)   • 00008110-000E04CE3E2B801E            • ios            • iOS 18.6.2 22G100
    • iPhone 16 Pro (mobile)      • 3545472A-F3CC-4D5E-80F2-558283517C27 • ios            • com.apple.CoreSimulator.SimRuntime.iOS-18-4 (simulator)
    • macOS (desktop)             • macos                                • darwin-arm64   • macOS 15.6.1 24G90 darwin-arm64
    • Chrome (web)                • chrome                               • web-javascript • Google Chrome 139.0.7258.155

[✓] Network resources [854ms]
    • All expected network resources are available.

• No issues found!

https://github.com/user-attachments/assets/1979826d-deb1-46ee-8567-19c06fc48533

Wrapping the input into a SizedBox may fix the problem, I think it's not supposed to behave like this.

child: SizedBox(
  height: MediaQuery.of(context).textScaler.scale(58),
  child: CupertinoTextFormFieldRow(
    controller: state.nameController,
    placeholder: 'Placeholder'
  ),
),

Thanks for the report. Seeing the same behavior as reported on latest sdk versions.

stable : 3.35.2
master : 3.36.0-1.0.pre-372

Same for me!

Correct intrinsics calculation for CupertinoTextField with placeholder (

This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.

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CupertinoTextFormFieldRow with placeholder causes unnecessary scrolling in CupertinoAlertDialog #174797

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CupertinoTextFormFieldRow with placeholder causes unnecessary scrolling in CupertinoAlertDialog #174797

Description

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Expected results

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Logs

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Activity

zamesilyasa commented on Sep 2, 2025

darshankawar commented on Sep 2, 2025

manudicri commented on Sep 3, 2025

github-actions commented on Sep 18, 2025

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