React-native-reanimated: Delay in TapGestureHandler?

[vmarcel]

Description

Is there an intentional delay in TapGestureHandler? I notice after about 3 secs the onGestureEvent triggers the next animation.

Code

  const initialScale = useSharedValue(1);
  const changeSize = useSharedValue(0.5);

  const gestureHandler = useAnimatedGestureHandler({
    onStart: () => {
      changeSize.value = initialScale.value === 1 ? 0.5 : 1;
    },
    onCancel: (event) => {
      console.log(event);
    },
    onEnd: () => {
      initialScale.value = withSpring(changeSize.value);
    },
  });

  //... More code

  return (
    <View style={styles.container}>
      <TapGestureHandler onGestureEvent={gestureHandler} numberOfTaps={2}>
        <Animated.View style={animatedPosition}>
          <Animated.View style={[styles.card, animatedScale]} />
        </Animated.View>
      </TapGestureHandler>
    </View>
  );

Example

Package versions

• React: 16.13.1
• React Native: 0.63.1
• React Native Reanimated: 2.0.0-alpha.5
• React Native Gesture Handler: 1.6.1

[jakub-gonet]

Could you please include a snack or provide a small code example showing this behavior?

[vmarcel]

@jakub-gonet I added a gif for a visual. Were you able to see it?

[jakub-gonet]

Not the exact moment but I _think_ I see some small delay. I asked for repro because trying to do it on our own based on your snippet is time-consuming and not really efficient (as we're trying to write the same thing that you already have written).

[terrysahaidak]

Try to play around with props: https://docs.swmansion.com/react-native-gesture-handler/docs/handler-tap

Also, there is a bug in the current (alpha.5) useAnimatedGestureHandler. Try to use code from master or my handler to reproduce it.

[gorhom]

@terrysahaidak you are a saviour ❤️

[terrysahaidak]

Did you try the code from master?

[gorhom]

yeah, i tried your implementation of useAnimatedGestureHandler from your master, and it works fine

[terrysahaidak]

Could you also try the one from this repo master? if it works, we can close this issue then.

[Szymon20000]

Looks like the problem has been resolved. We will close it for now but feel free to reopen anytime.