Incorrect element locations on iOS 18.1 Simulator

[BrandonYuen]

Is there an existing issue for this?

• I have searched the existing issues and didn't find mine.

Steps to reproduce

1. Spin up a 18.1 iPhone 16 Pro Simulator
2. maestro studio

Actual results

tapOn doesn't work so I investigated with maestro studio and as you can see below, the element locations (boxes) are incorrect.

Expected results

Locations (boxes) of elements should be correct.
As a fix I downloaded and installed a iOS 16.4 Simulator which does not have this issue. It's the same exact code and context, just swapped the simulator.

About app

Closed source

About environment

Macbook m4, iOS simulator 18.1

Logs

No response

Maestro version

1.39.1

How did you install Maestro?

install script (https://get.maestro.mobile.dev)

Anything else?

No response

[linear]

MA-2546 Incorrect element locations on iOS 18.1 Simulator

[vinaykumar0339]

@BrandonYuen, we also encountered this issue, and it doesn't seem to be tied to the OS version. We experienced it even on iOS 16 while working with a React Native application. Interestingly, the correct coordinates are returned when using simulators like the iPhone SE with a fingerprint touch (HOME button).

It would be helpful if the Maestro team could investigate this to ensure compatibility across all simulator types.

After debugging the Maestro iOS driver, I found that the issue stems from the following code, which returns incorrect element coordinates:

maestro/maestro-ios-xctest-runner/maestro-driver-iosUITests/Routes/Handlers/ViewHierarchyHandler.swift

Line 182 in 5cbe049

let snapshotDictionary = try xcuiElement.snapshot().dictionaryRepresentation