react-native-reanimated#withRepeat TypeScript Examples

The following examples show how to use react-native-reanimated#withRepeat. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: Dot.tsx    From react-native-wagmi-charts with MIT License 4 votes vote down vote up 
export function LineChartDot({
  at,
  color: defaultColor = 'black',
  dotProps,
  hasOuterDot: defaultHasOuterDot = false,
  hasPulse = false,
  inactiveColor,
  outerDotProps,
  pulseBehaviour = 'while-inactive',
  pulseDurationMs = 800,
  showInactiveColor = true,
  size = 4,
  outerSize = size * 4,
}: LineChartDotProps) {
  const { data, isActive } = useLineChart();
  const { path, pathWidth: width } = React.useContext(
    LineChartDimensionsContext
  );

  ////////////////////////////////////////////////////////////

  const { isInactive: _isInactive } = React.useContext(LineChartPathContext);
  const isInactive = showInactiveColor && _isInactive;
  const color = isInactive ? inactiveColor || defaultColor : defaultColor;
  const opacity = isInactive && !inactiveColor ? 0.5 : 1;
  const hasOuterDot = defaultHasOuterDot || hasPulse;

  ////////////////////////////////////////////////////////////

  const parsedPath = React.useMemo(() => parse(path), [path]);

  ////////////////////////////////////////////////////////////

  const pointWidth = React.useMemo(
    () => width / (data.length - 1),
    [data.length, width]
  );

  ////////////////////////////////////////////////////////////

  const x = useDerivedValue(() => withTiming(pointWidth * at));
  const y = useDerivedValue(() =>
    withTiming(getYForX(parsedPath!, x.value) || 0)
  );

  ////////////////////////////////////////////////////////////

  const animatedDotProps = useAnimatedProps(() => ({
    cx: x.value,
    cy: y.value,
  }));

  const animatedOuterDotProps = useAnimatedProps(() => {
    let defaultProps = {
      cx: x.value,
      cy: y.value,
      opacity: 0.1,
      r: outerSize,
    };

    if (!hasPulse) {
      return defaultProps;
    }

    if (isActive.value && pulseBehaviour === 'while-inactive') {
      return {
        ...defaultProps,
        r: 0,
      };
    }

    const easing = Easing.out(Easing.sin);
    const animatedOpacity = withRepeat(
      withSequence(
        withTiming(0.8),
        withTiming(0, {
          duration: pulseDurationMs,
          easing,
        })
      ),
      -1,
      false
    );
    const scale = withRepeat(
      withSequence(
        withTiming(0),
        withTiming(outerSize, {
          duration: pulseDurationMs,
          easing,
        })
      ),
      -1,
      false
    );

    if (pulseBehaviour === 'while-inactive') {
      return {
        ...defaultProps,
        opacity: isActive.value ? withTiming(0) : animatedOpacity,
        r: isActive.value ? withTiming(0) : scale,
      };
    }
    return {
      ...defaultProps,
      opacity: animatedOpacity,
      r: scale,
    };
  }, [outerSize]);

  ////////////////////////////////////////////////////////////

  return (
    <>
      <AnimatedCircle
        animatedProps={animatedDotProps}
        r={size}
        fill={color}
        opacity={opacity}
        {...dotProps}
      />
      {hasOuterDot && (
        <AnimatedCircle
          animatedProps={animatedOuterDotProps}
          fill={color}
          {...outerDotProps}
        />
      )}
    </>
  );
}