FlingGestureHandler always fails on iOS

[nickdebaise]

Description

On iOS, the FlingGestureHandler always fails and never returns an activated state.

Platforms

• [ X ] iOS
• [ Working ] Android
• [ Not Tested ] Web

Screenshots

https://user-images.githubusercontent.com/27066041/180814730-20261df9-5660-4267-83db-c0b3c32c866f.mov

Steps To Reproduce

You can clone the minimum repro GitHub repo here: https://github.com/nickdebaise/react-native-gesture-handler-test-fling-broken.git

Steps:

1. expo init test-broken-fling-behavior
2. cd test-broken-fling-behavior && yarn add react-native-gesture-handler
3. follow setup instructions for rn-gesture-handler (pod install, add import at top of index.js)

Actual behavior

Began state is fired but fails almost immediately after swiping. Other handles work, such as PanGestureHandler & TapGestureHandler.

Snack or minimal code example

git clone https://github.com/nickdebaise/react-native-gesture-handler-test-fling-broken.git cd ios && pod install run with either yarn ios or npx react-native run-ios

Package versions

• React: 17.0.2
• React Native: 0.68.2
• Expo: 45.0.0
• Expo CLI: 5.5.1
• React Native Gesture Handler: 2.5.0
• React Native Reanimated: Not installed (tried installing with 2.8.0 and 2.9.1 and neither worked, if that helps)

[j-piasecki]

Hi! I cloned your repo and it works for me:

https://user-images.githubusercontent.com/21055725/180974674-f0e83493-7909-4842-b65a-fb75f0c952ef.mov

[tdvuanh]

same for me, fling gesture always fail on ios. Note I am testing with ios 17

[justynjozwiak]

same for me

fling.direction(Directions.UP | Directions.DOWN | Directions.LEFT | Directions.RIGHT);

left & right works, up & down doesn't trigger onEnd @j-piasecki

UPDATE: on iOS onFinalize is triggered for me instead of onEnd