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Merged
merged 3 commits into from
Aug 3, 2025

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u7088495
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@u7088495 u7088495 commented Oct 22, 2024

This pull request closes #996.

In dialog.dart:

Switched alertDialog( to alertDialog.adaptive(, as per #996.

Defined new private widget _adaptiveAction which displays a CupertinoDialogAction for IOS and a TextButton otherwise. _adaptiveAction( is used in place of TextButton( when stating dialog actions.

The new result for IOS:
Screenshot 2024-10-22 at 3 31 13 pm

dialog-checks.dart has been updated to check the text content of the respective dialog types depending on the platform

@u7088495 u7088495 marked this pull request as ready for review October 22, 2024 13:59
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Thanks! Comments below.

Also, please tidy up the branch's commit history for clear and coherent commits. Each commit should be clean and pass all tests (you can run our tests with tools/check).

Comment on lines 19 to 34
/// Sets the dialog action to be platform appropriate
/// by displaying a [CupertinoDialogAction] for IOS platforms
/// and a regular [TextButton] otherwise.
Widget _adaptiveAction(
{required BuildContext context,
required VoidCallback onPressed,
required Widget child}) {
final ThemeData theme = Theme.of(context);
switch (theme.platform) {
case TargetPlatform.android:
return TextButton(onPressed: onPressed, child: child);
case TargetPlatform.fuchsia:
return TextButton(onPressed: onPressed, child: child);
case TargetPlatform.linux:
return TextButton(onPressed: onPressed, child: child);
case TargetPlatform.windows:
return TextButton(onPressed: onPressed, child: child);
case TargetPlatform.iOS:
return CupertinoDialogAction(onPressed: onPressed, child: child);
case TargetPlatform.macOS:
return CupertinoDialogAction(onPressed: onPressed, child: child);
}
}
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This can be tightened up in a few ways:

  • Use empty cases to fall through. From the doc on Dart switch statements:

    https://dart.dev/language/branches#switch-statements

  • Use defaultTargetPlatform instead of passing through context. When the app is run on a device, defaultTargetPlatform will match the platform (iOS or Android). When we need to simulate a specific platform in tests, we set defaultTargetPlatform; search for debugDefaultTargetPlatformOverride for how we do this.

  • More concise dartdoc

Also, because the logic in _dialogActionText fits and is recommended for the Material-style dialog, let's only apply it on Android. This helper is a fine place for that conditional logic; how about changing its interface so it takes a String instead of a Widget, and applies _dialogActionText in the Android branch. In my proposal below, I've also given _dialogActionText an appropriately specific name, _materialDialogActionText. That helper could even be inlined, perhaps in a followup NFC commit.

So, putting all that together:

Suggested change
/// Sets the dialog action to be platform appropriate
/// by displaying a [CupertinoDialogAction] for IOS platforms
/// and a regular [TextButton] otherwise.
Widget _adaptiveAction(
{required BuildContext context,
required VoidCallback onPressed,
required Widget child}) {
final ThemeData theme = Theme.of(context);
switch (theme.platform) {
case TargetPlatform.android:
return TextButton(onPressed: onPressed, child: child);
case TargetPlatform.fuchsia:
return TextButton(onPressed: onPressed, child: child);
case TargetPlatform.linux:
return TextButton(onPressed: onPressed, child: child);
case TargetPlatform.windows:
return TextButton(onPressed: onPressed, child: child);
case TargetPlatform.iOS:
return CupertinoDialogAction(onPressed: onPressed, child: child);
case TargetPlatform.macOS:
return CupertinoDialogAction(onPressed: onPressed, child: child);
}
}
/// A platform-appropriate action for [AlertDialog.adaptive]'s [actions] param.
Widget _adaptiveAction({required VoidCallback onPressed, required String text}) {
switch (defaultTargetPlatform) {
case TargetPlatform.android:
case TargetPlatform.fuchsia:
case TargetPlatform.linux:
case TargetPlatform.windows:
return TextButton(onPressed: onPressed, child: _materialDialogActionText(text));
case TargetPlatform.iOS:
case TargetPlatform.macOS:
return CupertinoDialogAction(onPressed: onPressed, child: Text(text));
}
}

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Is this the idea for inlining the _materialDialogActionText?

return TextButton(onPressed: onPressed, child: Text(text, textAlign: TextAlign.end));

will update the commit message of the latest commit as well as per the guidelines

@@ -6,21 +8,41 @@ import 'package:flutter_test/flutter_test.dart';
/// Checks for an error dialog matching an expected title
/// and, optionally, matching an expected message. Fails if none is found.
///
/// On success, returns the widget's "OK" button.
/// On success, returns the widget's "OK" button
/// (which is a [CupertinoDialogAction] for OS platforms).
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We can leave this dartdoc unchanged. It doesn't matter what specific widget the button is, as long as it responds to taps.

Comment on lines 15 to 46
final dialog = tester.widget<AlertDialog>(find.byType(AlertDialog));
tester.widget(find.descendant(matchRoot: true,
of: find.byWidget(dialog.title!), matching: find.text(expectedTitle)));
if (expectedMessage != null) {
if (defaultTargetPlatform == TargetPlatform.iOS
|| defaultTargetPlatform == TargetPlatform.macOS) {

final dialog = tester.widget<CupertinoAlertDialog>(find.byType(CupertinoAlertDialog));

tester.widget(find.descendant(matchRoot: true,
of: find.byWidget(dialog.content!), matching: find.text(expectedMessage)));
}
of: find.byWidget(dialog.title!), matching: find.text(expectedTitle)));

return tester.widget(
find.descendant(of: find.byWidget(dialog),
matching: find.widgetWithText(TextButton, 'OK')));
if (expectedMessage != null) {
tester.widget(find.descendant(matchRoot: true,
of: find.byWidget(dialog.content!), matching: find.text(expectedMessage)));
}

return tester.widget(
find.descendant(of: find.byWidget(dialog),
matching: find.widgetWithText(CupertinoDialogAction, 'OK')));

}
else {
final dialog = tester.widget<Dialog>(find.byType(Dialog));
tester.widget(find.widgetWithText(Dialog, expectedTitle));
if (expectedMessage != null) {
tester.widget(find.widgetWithText(Dialog, expectedMessage));
}
return tester.widget(
find.descendant(of: find.byWidget(dialog),
matching: find.widgetWithText(TextButton, 'OK')));
}
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Let's use an exhaustive switch on defaultTargetPlatform, like we do elsewhere. Also, there are several formatting nits that makes this code harder to read than it needs to be.

Proposal:

  switch (defaultTargetPlatform) {
    case TargetPlatform.android:
    case TargetPlatform.fuchsia:
    case TargetPlatform.linux:
    case TargetPlatform.windows: {
      final dialog = tester.widget<Dialog>(find.byType(Dialog));
      tester.widget(find.widgetWithText(Dialog, expectedTitle));
      if (expectedMessage != null) {
        tester.widget(find.widgetWithText(Dialog, expectedMessage));
      }
      return tester.widget(
        find.descendant(of: find.byWidget(dialog),
          matching: find.widgetWithText(TextButton, 'OK')));
    }
    case TargetPlatform.iOS:
    case TargetPlatform.macOS: {
      final dialog = tester.widget<CupertinoAlertDialog>(
        find.byType(CupertinoAlertDialog));
      tester.widget(find.descendant(matchRoot: true,
        of: find.byWidget(dialog.title!), matching: find.text(expectedTitle)));
      if (expectedMessage != null) {
        tester.widget(find.descendant(matchRoot: true,
          of: find.byWidget(dialog.content!), matching: find.text(expectedMessage)));
      }
      return tester.widget(find.descendant(of: find.byWidget(dialog),
        matching: find.widgetWithText(CupertinoDialogAction, 'OK')));
    }
  }

pubspec.lock Outdated
@@ -315,10 +315,10 @@ packages:
dependency: transitive
description:
name: file
sha256: "5fc22d7c25582e38ad9a8515372cd9a93834027aacf1801cf01164dac0ffa08c"
sha256: a3b4f84adafef897088c160faf7dfffb7696046cb13ae90b508c2cbc95d3b8d4
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The changes to this file don't look related; please remove them.

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Ok thankyou for the feedback, will be sure to onboard these points when working on issues in the future. I'll fix these things up in a new commit.

@gnprice gnprice added the maintainer review PR ready for review by Zulip maintainers label Oct 23, 2024
@gnprice gnprice closed this Oct 24, 2024
@gnprice gnprice reopened this Oct 24, 2024
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gnprice commented Oct 24, 2024

(Misclick, sorry)

@u7088495 u7088495 force-pushed the cupertino-dialog-for-ios branch 4 times, most recently from a255919 to db740f9 Compare October 24, 2024 04:34
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Thanks. You'll need to tidy up your branch, as I mentioned above, before we can review this again. If you need help, please ask in #git help in the development community.

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Thanks. You'll need to tidy up your branch, as I mentioned above, before we can review this again. If you need help, please ask in #git help in the development community.

yep my bad, will do so. Thanks for your patients with me on this.

@u7088495 u7088495 force-pushed the cupertino-dialog-for-ios branch 2 times, most recently from ed8abb7 to 9d2c4df Compare October 25, 2024 01:30
u7088495 added a commit to u7088495/zulip-flutter that referenced this pull request Oct 25, 2024
@u7088495 u7088495 force-pushed the cupertino-dialog-for-ios branch from 9e6fc98 to 373cd75 Compare October 25, 2024 02:17
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Thanks, this is much closer! Small comments below.

Also, a few commit message nits:

dialog: display adaptive dialogs and action buttons based on the target platform

AlertDialog was changed to AlertDialog.adaptive to the effect described in #996.
_adaptiveAction was implemented to display a platform appropriate action for
AlertDialog.adaptive's actions param, as was also discussed in #996.
tests in dialog_test were updated to perform platform appropriate tests.
  • This commit fixes an issue (🎉), so let's put a Fixes: #996 line at the end of it.
  • Also, I think the paragraph ("AlertDialog was changed…") doesn't add anything that's not already obvious from reading the code changes and the linked issue, so let's just delete it.
dialog [nfc]: inline _materialDialogActionTest in _adaptiveAction
    
As was suggested in a comment of the pull request https://github.com/zulip/zulip-flutter/pull/1017#discussion_r1813819656.
  • The URL should be on a new line; we try to wrap to 68 columns except where doing so would make things more confusing. How about:

    As suggested at:
      https://github.com/zulip/zulip-flutter/pull/1017#discussion_r1813819656 
    

Then for both commit messages, use initial caps for the part after the prefix, so:

  • dialog: Display adaptive dialogs and action buttons based on the target platform
  • dialog [nfc]: inline _materialDialogActionTest in _adaptiveAction

For examples of commit messages in the project's style, see the project's Git history; I recommend Greg's excellent tip about how to do that.

u7088495 added a commit to u7088495/zulip-flutter that referenced this pull request Oct 26, 2024
@u7088495 u7088495 force-pushed the cupertino-dialog-for-ios branch from 373cd75 to 52d762d Compare October 26, 2024 23:26
u7088495 added a commit to u7088495/zulip-flutter that referenced this pull request Oct 26, 2024
@u7088495 u7088495 force-pushed the cupertino-dialog-for-ios branch from 52d762d to 6166a0a Compare October 26, 2024 23:55
u7088495 added a commit to u7088495/zulip-flutter that referenced this pull request Oct 27, 2024
@u7088495 u7088495 force-pushed the cupertino-dialog-for-ios branch from 6166a0a to f91a8c5 Compare October 27, 2024 00:03
@u7088495 u7088495 requested a review from chrisbobbe October 27, 2024 00:09
@chrisbobbe chrisbobbe self-assigned this Oct 28, 2024
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Thanks!

Some new nits below, and also some more commit-message nits that I should have caught last time 🙂:


dialog: Display adaptive dialogs and action buttons based on the target platform

This summary line is too long, at 80 characters. How about:

dialog: Use Cupertino-flavored alert dialogs on iOS

This also has a bit more information: the fact that iOS was the platform getting the wrong-style dialog. (The fact that the dialog's buttons match the rest of the dialog isn't surprising enough to need a mention. 🙂)

For what the length limit actually is, see discussion, which I've just started 🙂. This was a helpful opportunity for me to spot a change in the zulip/zulip documentation that I'd missed!


dialog [nfc]: Inline _materialDialogActionTest in _adaptiveAction

The function's name is _materialDialogActionText, not _materialDialogActionTest.

u7088495 added a commit to u7088495/zulip-flutter that referenced this pull request Oct 30, 2024
@u7088495 u7088495 force-pushed the cupertino-dialog-for-ios branch from f91a8c5 to 0a44828 Compare October 30, 2024 04:56
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Thanks!

Some new nits below, and also some more commit-message nits that I should have caught last time 🙂:

dialog: Display adaptive dialogs and action buttons based on the target platform

This summary line is too long, at 80 characters. How about:

dialog: Use Cupertino-flavored alert dialogs on iOS

This also has a bit more information: the fact that iOS was the platform getting the wrong-style dialog. (The fact that the dialog's buttons match the rest of the dialog isn't surprising enough to need a mention. 🙂)

For what the length limit actually is, see discussion, which I've just started 🙂. This was a helpful opportunity for me to spot a change in the zulip/zulip documentation that I'd missed!

dialog [nfc]: Inline _materialDialogActionTest in _adaptiveAction

The function's name is _materialDialogActionText, not _materialDialogActionTest.

all sorted :)

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ok should be all good to go now :)

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gnprice commented Apr 2, 2025

@BrynMtchll I'm guessing you're the same person as @u7088495? Please pick a single account to stick to, at least for interacting with any given project (like Zulip) — it makes things less confusing 🙂

It looks like this has some merge/rebase conflicts after 0094978 / #1410. Would you rebase and resolve those? Then I think this will be all ready for merge.

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u7088495 commented Apr 3, 2025

Sorry yes that's my other account, my mistake - I forgot that I switched over for a different project

u7088495 added a commit to u7088495/zulip-flutter that referenced this pull request Apr 3, 2025
@u7088495 u7088495 force-pushed the cupertino-dialog-for-ios branch from 991a4fe to 5e56125 Compare April 3, 2025 22:42
u7088495 added a commit to u7088495/zulip-flutter that referenced this pull request Apr 4, 2025
@u7088495 u7088495 force-pushed the cupertino-dialog-for-ios branch from 5e56125 to 4af9eb5 Compare April 4, 2025 22:09
u7088495 added a commit to u7088495/zulip-flutter that referenced this pull request Apr 4, 2025
@u7088495 u7088495 force-pushed the cupertino-dialog-for-ios branch from 4af9eb5 to 39a6ffe Compare April 4, 2025 22:27
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u7088495 commented Apr 4, 2025

Alright I think it's ready; I refactored the learn more test logic into checkErrorDialog as well.

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Thanks for the revision! There's one substantive change needed in the new test code, and a couple of easy nits.

Comment on lines 68 to 69
text: zulipLocalizations.errorDialogLearnMore,
),
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nit: preserve formatting

Suggested change
text: zulipLocalizations.errorDialogLearnMore,
),
text: zulipLocalizations.errorDialogLearnMore),

Comment on lines 25 to 31
textAlign: TextAlign.end));
case TargetPlatform.iOS:
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nit: a blank line to separate these cases helps make the structure easier to see:

Suggested change
textAlign: TextAlign.end));
case TargetPlatform.iOS:
textAlign: TextAlign.end));
case TargetPlatform.iOS:

Comment on lines 36 to 40
if (expectedLearnMoreButtonUrl != null) {
check(testBinding.takeLaunchUrlCalls()).single.equals((
url: expectedLearnMoreButtonUrl,
mode: LaunchMode.inAppBrowserView));
}
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Checking for this button is useful, but this check doesn't work in this context. The check will work only if the caller has already gone and tapped on the button. There's nothing in this function's dartdoc that says the caller should do that, and it's not something a reader would naturally assume they need to do.

If a caller is going and tapping on the button themself, then the caller can also easily go and do this check — the check isn't using any specific knowledge about how the error dialogs work.

It looks like there's one call site that passes this option. So let's move this check to that call site.

@u7088495 u7088495 force-pushed the cupertino-dialog-for-ios branch from 39a6ffe to a149fef Compare July 25, 2025 01:42
u7088495 added a commit to u7088495/zulip-flutter that referenced this pull request Jul 25, 2025
u7088495 added a commit to u7088495/zulip-flutter that referenced this pull request Jul 25, 2025
@u7088495 u7088495 force-pushed the cupertino-dialog-for-ios branch from a149fef to 1a77779 Compare July 25, 2025 02:12
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hey @gnprice, sorry I've stepped away from this - I've come back to it and think it's ready for another review now :).

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Thanks for the revision! Small comments.

Comment on lines 60 to 72
switch (defaultTargetPlatform) {
case TargetPlatform.android:
case TargetPlatform.fuchsia:
case TargetPlatform.linux:
case TargetPlatform.windows:
check(testBinding.takeLaunchUrlCalls()).single.equals((
url: learnMoreButtonUrl,
mode: LaunchMode.inAppBrowserView));
case TargetPlatform.iOS:
case TargetPlatform.macOS:
check(testBinding.takeLaunchUrlCalls()).single.equals((
url: learnMoreButtonUrl,
mode: LaunchMode.externalApplication));
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This is fairly verbose, in a way that obscures the fact that the only difference between the cases is the value of mode.

Instead, let's first determine teh mode we expect; then have just one, more focused, check that calls takeLaunchUrlCalls.

For examples, search the existing tests in test/ for "LaunchMode.externalApplication".

Comment on lines 56 to 60
await tester.tap(find.text('Learn more'));
check(testBinding.takeLaunchUrlCalls()).single.equals((
url: Uri.parse('https://foo.example'),
mode: LaunchMode.inAppBrowserView));
});

checkErrorDialog(tester, expectedTitle: title);

switch (defaultTargetPlatform) {
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These steps are out of their logical order. The dialog must be there before the tester.tap on one of its buttons can work; so let's check for the dialog before trying to tap one of its buttons.

u7088495 added a commit to u7088495/zulip-flutter that referenced this pull request Aug 1, 2025
@u7088495 u7088495 force-pushed the cupertino-dialog-for-ios branch from 1a77779 to f369cc7 Compare August 1, 2025 00:27
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u7088495 commented Aug 2, 2025

alright should be ready for another revision :)

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Thanks @u7088495 for all your work on this! All looks good now except a couple of nits below. I'll fix those and merge.

.equals((url: learnMoreButtonUrl, mode: expectedMode));

}, variant: const TargetPlatformVariant({TargetPlatform.android, TargetPlatform.iOS}));
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nit: no blank line at end of block

Suggested change
.equals((url: learnMoreButtonUrl, mode: expectedMode));
}, variant: const TargetPlatformVariant({TargetPlatform.android, TargetPlatform.iOS}));
.equals((url: learnMoreButtonUrl, mode: expectedMode));
}, variant: const TargetPlatformVariant({TargetPlatform.android, TargetPlatform.iOS}));

Comment on lines 56 to 64
checkErrorDialog(tester, expectedTitle: title);
await tester.tap(find.text('Learn more'));
check(testBinding.takeLaunchUrlCalls()).single.equals((
url: Uri.parse('https://foo.example'),
mode: LaunchMode.inAppBrowserView));
});

final expectedMode = switch (defaultTargetPlatform) {
TargetPlatform.android => LaunchMode.inAppBrowserView,
TargetPlatform.iOS => LaunchMode.externalApplication,
_ => throw StateError('attempted to test with $defaultTargetPlatform'),
};

check(testBinding.takeLaunchUrlCalls()).single
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nit: use blank lines to group test steps into stanzas of set up, then check.

See #1317 (comment) and the previous comments linked from there.

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Here's the adjusted version of this test which I just merged:

    testWidgets('tap "Learn more" button', (tester) async {
      await prepare(tester);

      final learnMoreButtonUrl = Uri.parse('https://foo.example');
      showErrorDialog(context: context, title: title, learnMoreButtonUrl: learnMoreButtonUrl);
      await tester.pump();
      checkErrorDialog(tester, expectedTitle: title);

      await tester.tap(find.text('Learn more'));
      final expectedMode = switch (defaultTargetPlatform) {
        TargetPlatform.android => LaunchMode.inAppBrowserView,
        TargetPlatform.iOS =>     LaunchMode.externalApplication,
        _ => throw StateError('attempted to test with $defaultTargetPlatform'),
      };
      check(testBinding.takeLaunchUrlCalls()).single
        .equals((url: learnMoreButtonUrl, mode: expectedMode));
    }, variant: const TargetPlatformVariant({TargetPlatform.android, TargetPlatform.iOS}));

Note how each stanza (each group separated by blank lines) first sets up a situation, then checks that it's as expected.

@gnprice gnprice force-pushed the cupertino-dialog-for-ios branch from f369cc7 to ec1baee Compare August 3, 2025 20:25
@gnprice gnprice merged commit ec1baee into zulip:main Aug 3, 2025
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chrisbobbe added a commit to chrisbobbe/zulip-flutter that referenced this pull request Aug 4, 2025
In zulip#1017, we overlooked the fact that a SingleChildScrollView is
added automatically on iOS but not on Android.

I haven't reproduced an observable bug that comes from this, but it
calls for a fix.

I tested this change manually on iOS (showErrorDialog,
showSuggestedActionDialog, and UpgradeWelcomeDialog), with short
text and long text (longer than a screenful, to check the scrolling
works).
chrisbobbe added a commit to chrisbobbe/zulip-flutter that referenced this pull request Aug 4, 2025
In zulip#1017, we overlooked the fact that a SingleChildScrollView is
added automatically on iOS but not on Android.

I haven't reproduced an observable bug that comes from this, but it
calls for a fix.

I tested this change manually on iOS (showErrorDialog,
showSuggestedActionDialog, and UpgradeWelcomeDialog), with short
text and long text (longer than a screenful, to check the scrolling
works).
chrisbobbe added a commit to chrisbobbe/zulip-flutter that referenced this pull request Aug 6, 2025
In zulip#1017, we overlooked the fact that a SingleChildScrollView is
added automatically on iOS but not on Android.

I haven't reproduced an observable bug that comes from this, but it
calls for a fix.

I tested this change manually on iOS (showErrorDialog,
showSuggestedActionDialog, and UpgradeWelcomeDialog), with short
text and long text (longer than a screenful, to check the scrolling
works).
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dialog: Use Cupertino-flavored alert dialogs on iOS
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