Bottom sheet modal overflows and content is missing on iOS 18.0.0 simulator.

[shonie2xx]

Issue

It seems the authorize method uses a modal, as the login page slides up from the bottom of the screen. On iOS 18.0.0, this modal is not displaying the content of the page and is not fitting within the screen. Below is a screenshot from the simulator:

Environment

Simulator iOS: 18.0.0 Simulator Device: iPhone 15 Pro, iPhone 16 Pro Xcode: 16.0 macOS: Sequila 15.0 react-native: ^0.72.5 react-native-app-auth: 7.2.0 (also occurs on 8.0.0)

[sasha-maliauka]

We're having the same issue. Works fine on iOS 17.x.x/Xcode 15.x.x, not working on iOS 18/Xcode 16.

[brampono]

I can also reproduce this issue: Xcode: 16.0 Simulator: iPhone 16 Pro | iOS 18 react-native: 0.74.5 react-native-app-auth: 8.0.0

I can fix the issue by running simulator: iPhone 15 Pro | iOS 17.5

Seems like it could be an issue with iOS 18.0

[ashosipyan]

Have the same issue with Xcode16 and iOS18 simulator, the interesting thing is that it works in production build on real device.

Update: also tested dev build on real device and it's working as well

[roshanShendre13]

Yes I am also facing the same issue on Xcode16 and iOS18 simulator

[KhadeevRV]

Same issue

[Anaezsh]

Same

[m0hamad]

Hi @shonie2xx, I've been looking into this and have not been able to replicate it yet with iOS 18.0 & Xcode 16. Would you be able to provide a reproducible example that I could take a look at? Thank you.

[ashosipyan]

Hi @shonie2xx, I've been looking into this and have not been able to replicate it yet with iOS 18.0 & Xcode 16. Would you be able to provide a reproducible example that I could take a look at? Thank you.

hi @m0hamad, the main problem is with ios18 simulator, did you test on real device?

[shonie2xx]

Hi @m0hamad, the issue is happening only on simulator and not physical device. iOS 18.0 Simulator & XCode 16. How can I further help you?

[m0hamad]

@ashosipyan @shonie2xx Apologies for not being more specific. I tested on an iOS 18.0 simulator (16/16 Plus/16 Pro/16 Pro Max) with various react-native versions combined with different versions of react-native-app-auth and haven't had any luck replicating the issue yet. Are you also using Expo?

[bogrees]

I can reproduce the issue with:

• Xcode 16.0
• Simulator running iPhone 16 Pro with iOS 18.0
• react-native-app-auth 7.2.0

[ashosipyan]

@m0hamad hi, thank you for clarification,

we are using:

• react-native 0.72.14
• Xcode 16
• iOS 18 simulator iPhone 16 pro
• we are not using expo
• latest version of react-native-app-auth

if I try on simulator with iOS 17.5 and Xcode16 everything works fine, so for me the only issue is iOS18 simulator

[m0hamad]

@m0hamad hi, thank you for clarification,

we are using:

• react-native 0.72.14
• Xcode 16
• iOS 18 simulator iPhone 16 pro
• we are not using expo
• latest version of react-native-app-auth

if I try on simulator with iOS 17.5 and Xcode16 everything works fine, so for me the only issue is iOS18 simulator

Hi @ashosipyan,

I am still trying to replicate the issue. I noticed that there was a MacOS Sequoia re-release today and an update to the iOS 18 simulator along with the dev tools. Can you try updating and seeing if the issue persists afterwards? Thank you.

[shonie2xx]

@m0hamad hi, thank you for clarification, we are using:

• react-native 0.72.14
• Xcode 16
• iOS 18 simulator iPhone 16 pro
• we are not using expo
• latest version of react-native-app-auth

if I try on simulator with iOS 17.5 and Xcode16 everything works fine, so for me the only issue is iOS18 simulator

Hi @ashosipyan,

I am still trying to replicate the issue. I noticed that there was a MacOS Sequoia re-release today and an update to the iOS 18 simulator along with the dev tools. Can you try updating and seeing if the issue persists afterwards? Thank you.

I tried it out this morning doesn't fix the issue. Could it be something from the cocoapods version? We're running COCOAPODS: 1.15.2

[m0hamad]

@m0hamad hi, thank you for clarification, we are using:

• react-native 0.72.14
• Xcode 16
• iOS 18 simulator iPhone 16 pro
• we are not using expo
• latest version of react-native-app-auth

if I try on simulator with iOS 17.5 and Xcode16 everything works fine, so for me the only issue is iOS18 simulator

Hi @ashosipyan, I am still trying to replicate the issue. I noticed that there was a MacOS Sequoia re-release today and an update to the iOS 18 simulator along with the dev tools. Can you try updating and seeing if the issue persists afterwards? Thank you.

I tried it out this morning doesn't fix the issue. Could it be something from the cocoapods version? We're running COCOAPODS: 1.15.2

@shonie2xx I also have the same COCOAPODS version (can see the version in the Podfile.lock file). I believe the best way to move forward would be for you to submit a reproducible example, I have not had any luck yet with reproducing this issue. Thank you.

[veselignome]

I'm also experiencing this issue after several years of successful usage with this IDP, only simulator issue as described. Tested locally so dangerouslyAllowInsecureHttpRequests is used.

• XCode 16
• iPhone simulator (15/16) with iOS 18
• "react-native": "0.74.3"
• "react-native-app-auth": "7.2.0"
• no expo
• COCOAPODS: 1.14.3

usage: authorize({ issuer:"http://192.168.1.1:9000/auth/realms/authprovider/", clientId:"XXX_myClientId_XXX", redirectUrl:"myapp://callback", scopes:[ "MyAuthProviderAuthorization", "directory", "openid", "profile", "email", "offline_access", "id" ], additionalParameters:{ prompt:"login" }, dangerouslyAllowInsecureHttpRequests:true })

Reproduction steps:

• Click button that calls authorize function with the above described object
• PopUp dialog shows up: MyApp wants to use 192.168.1.1 to Sign In
• Click on Continue button
• redirection to browser occurs that should offer login page with username/password fields

Expected result:

• login page should be loaded

Actual result:

• no login page content is shown, modal overflows. Identical to screenshot attached in this ticket by @shonie2xx

Thanks.

[DanushkaPerusinghe]

Same issue in iOS simulator. Any update on this.

• XCode 16
• iPhone simulator 16 with iOS 18

Works fine in real device with iOS 18

[carbonrobot]

We are doing a little research around this issue, but it's going to be an upstream issue in either AppAuth-IOS or Xcode itself. This library only passes the data to AppAuth-IOS and has very little to do with the actual UI that is presented. So any fixes will likely need to be done in those codebases, not this one.

[carbonrobot]

Possibly related issues:

• https://github.com/openid/AppAuth-iOS/pull/871
• https://github.com/coronalabs/corona/pull/731

[robwalkerco]

I've partially replicated this issue using Xcode 16.1 Beta 3 and iOS 18.1 Simulator.

Interestingly - hitting the release icon at the top-right allows the content to load correctly.

I can't replicate the layout issue from the original report, but the content fails to load.

Once https://github.com/openid/AppAuth-iOS/pull/871 is merged and released, I can check that using the latest version of AppAuth-iOS in react-native-app-auth resolves this issue.