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By Design
Votes
0
Found in
2017.4
2019.2.10f1
2020.1
Issue ID
1195256
Regression
No
[iOS] Input.touchCount returns a lower value than expected when touching with multiple fingers at the edge of the screen
Steps to reproduce:
1. Open user's attached project "TouchExample.zip"
2. Build for iOS and deploy the Xcode project to the iOS device
3. Touch the edge of the screen with multiple fingers
Expected results: Input.touchCount returns all fingers that are touching the screen
Actual results: Input.touchCount return smaller value until the touch moves (you move the finger while touching the screen) (video attached)
Reproduced with: 2017.4.35f1, 2018.4.13f1, 2019.2.13f1, 2019.3.0b12, 2020.1.0a14
Devices reproduced with:
iPhone 8 Plus (iOS 12.0)
iPhone X (iOS 13.0)
Devices not reproduced with:
VLNQA00100, Google Pixel 2 (Pixel 2), Android 9, CPU: Snapdragon 835 MSM8998, GPU: Adreno (TM) 540
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Resolution Note (2020.1.X):
Unity uses the native iOS callbacks, so if they're not being triggered by the OS then we cannot do anything.