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Won't Fix
Votes
0
Found in
5.6.5p1
Issue ID
1010007
Regression
No
[Android] Input.touchCount and Input.GetTouch returns inconsistant results on Amazon devices
Steps to reproduce:
1. Open user attached project
2. Open and add "DemoSceneMultiDrag" to build
3. Build and run the project on an Android device
4. Start grabbing asteroids with up to 5 fingers
5. Move the 5 fingers around keeping the fingers stationary, moving fingers slowly close to each other
- Observe the touch circles flickering and sometimes disappearing entirely
Expected result: Touch circles should not flicker or disappear
Reproduced in: 2018.2.0a3, 2018.1.0b10, 2017.3.1p1, 2017.2.1p3, 2017.1.3p2, 5.6.5f1
Not reproduced with:
LG G3, Android 5,
Asus ZenPad C 7.0, Android 5,
Samsung Galaxy Note8, Android 7.1
Google Pixel 2, Android 8.1
Amazon Fire (5th gen), Android 5.1
Reproduced with:
Amazon Fire HD 8, Android 5.1
Amazon Kindle Fire HDX 8.9, Android 5.1
Unable to reproduce on iOS
iOS devices tested:
iPhone 7 iOS 11.0.2
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Resolution Note:
The problem is caused by the device. Sometimes AMOTION_EVENT_ACTION_POINTER_UP is sent for all finger IDs and even though the fingers are still touching the screen, no new motion events are received until all fingers are lifted up. We can't react to this in any way since we don't receive new events.
Original bug report also showed flickering behavior if touches disappearing and reappearing, however with the latest Unity version that is not reproducible. Only sometimes all touches are lost and they don't reset until all fingers are lifted up.