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Third Party Issue
Third Party Issue in 2019.4.X
Votes
0
Found in
2019.4.40f1
Issue ID
UUM-14090
Regression
No
[iOS] FPS drops occurs when tapping screen with multiple fingers
How to reproduce:
1. Download and open the attached project
2. Build and deploy to iOS
3. Rapidly tap the screen with multiple fingers
Expected outcome: No FPS drop occurs
Actual outcome: FPS drop ranging from 0.02 to 0.0333 seconds occurs
Reproducible with: 2019.4.40f1, 2020.3.36f1, 2021.3.8f1, 2022.1.14f1, 2022.20b3, 2023.1.0a10
Reproduced with: iPhone 13 Pro (iOS 15.6.0), iPhone 13 Pro Max (User info)
Could not reproduce with: iPhone 12 Pro (iOS 14.2.1 )
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Resolution Note:
On iPhone 13 Pro when the ProMotion is enabled and app is running on 120 FPS it drops to 60 FPS for the single frame where initial touch happened. This is coming from OS and we can do nothing about it. If the spikes are interfering with an app in a meaningful way you can disable ProMotion functionality for the app by deleting CADisableMinimumFrameDurationOnPhone and CADisableMinimumFrameDuration keys in the Info.plist of your app.
Resolution Note (2019.4.X):
On iPhone 13 Pro when the ProMotion is enabled and app is running on 120 FPS it drops to 60 FPS for the single frame where initial touch happened. This is coming from OS and we can do nothing about it. If the spikes are interfering with an app in a meaningful way you can disable ProMotion functionality for the app by deleting CADisableMinimumFrameDurationOnPhone and CADisableMinimumFrameDuration keys in the Info.plist of your app.