![]() The only solution I could find to fix it was creating an extra translateX transform and undo the x-axis movement by manipulating it manually. Unfortunately, using scale transform causes the label to move on the x-axis. We'll use its scale property to replace the fontSize animation, and translateY to move the label. Animated throws an exception when you set useNativeDriver: true:įortunately, transform can create the same animation behavior here. So it doesn't work with top and fontSize properties and we need to replace them with supported properties. The problem is: the native driver can work with a limited set of properties such as transform and opacity. Once the animation has started, the JS thread can be blocked without affecting the animation. Here is the description from React Native documentation:īy using the native driver, we send everything about the animation to native before starting the animation, allowing native code to perform the animation on the UI thread without having to go through the bridge on every frame. But there is one more thing we can do to make it more smooth on lower-end devices by passing useNativeDriver parameter to the Animated API. See the contributing guide to learn how to contribute to the repository and the development workflow.Our animation works perfectly right now. style: (Optional) A custom style property that will be passed to the underlying Animated.View - animated styles are supported.Pass state property returned by useCollapsible hook. It’s used internally by the component to properly handle pointer events of the collapsed element. state: (Required) A state of the animation.Pass onLayout function returned by useCollapsible hook. In this case, the second part will be both bold and red. React Native still has the concept of style inheritance, but limited to text subtrees. ![]() onLayout: (Required) A function that measures a collapsible element. Composing MyAppText in this way ensures that we get the styles from a top-level component, but leaves us the ability to add / override them in specific use cases.Pass animatedHeight property returned by useCollapsible hook. animatedHeight: (Required) An Animated.Value driving collapse/expand animations.children: (Required) Accepts a React element that will be rendered as AnimatedSection content.Suscipit, mollis nibh ut, venenatis lectus. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pass it to a Touchable component, that on press, is supposed to expand/collapse some content.Ī component that takes care of height measuring and animating. onPress: A function that toggles animation state when it’s called.It must be passed to the AnimatedSection component as a prop. onLayout: A function that measures a collapsible element.animatedHeight: An Animated.Value driving collapse/expand animations.Handy for defining upper bounds of the custom interpolations. height: A number representing full height of the collapsible section. ![]()
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