Unlocking the Secrets of AnimatedInterpolation Values

I have a question about how to access the value of an AnimatedInterpolation in react-native without resorting to calling private code.

To achieve this, I first create an animated value and then wrap it in an interpolation like so:

  animated = new Animated.Value();
  interpolated = this.animated.interpolate({
    inputRange:[0, 1000],
    outputRange:[0, 500]
  })

The animation is rendered using the following code:

  <Animated.View style={[{width: this.interpolated}]}/>

After rendering the animation, I attempt to retrieve the animated value with this method:

  this.animated.stopAnimation(v => {
    console.log(v, " ", this.interpolated.__getValue());
  })

A live example can be found here.

My challenge lies in the fact that __getValue() is considered a private member of AnimatedInterpolation, causing issues when incorporating typescript. I am seeking a reliable method to obtain the value similar to the use of this.animated.stopAnimation over this.animated.__getValue().

Answer №1

If you want to retrieve the value from interpolated, simply attach a listener like this -

    interpolated.addListener(({value}) => {
      console.log('interpolated', value)
    });

Afterwards, feel free to utilize it with variables or any other elements.

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Implementing dynamic ID routes in React Router using JSON data

As a beginner in React, I have been working hard to improve my skills every day. However, I am currently facing a challenge with creating dynamic routes using JSON characters (specifically from Dragon Ball Z). Although my routes are set up correctly, I wo ...

Connecting prop variables to component variables establishes a direct relationship between them

By assigning the props variable to a component variable, any changes made to the component variable will also reflect in the props... Parent Component: const prova = [ { 1: 'a' }, { 2: 'b' }, { ...

The module "angular2-multiselect-dropdown" is experiencing a metadata version mismatch error

Recently, I updated the node module angular2-multiselect-dropdown from version v3.2.1 to v4.0.0. However, when running the angular build command, I encountered an "ERROR in Metadata version mismatch for module". Just to provide some context, I am using yar ...

The Vue/Vuetify wrapper component does not automatically pass on the `hide-details` parameter to the input component

I recently crafted a custom wrapper for the v-select input using Vuetify. Along with custom properties, I utilized the v-bind="$props"attribute to inherit all props. Upon testing, I observed that while this method applies to most props, it doesn ...

Error: Vue.js application requires the "original" argument to be a Function type

I am facing an issue when trying to call a soap webservice using the 'soap' module in my Vue SPA. Strangely, I encounter an error just by importing the module. Despite my extensive search efforts, I have not been able to find a solution yet. Her ...

When additional elements follow, the button ceases to function properly in JavaScript

I am working on creating a text-based idle game that involves multiple buttons and text around them. However, I have encountered an issue where the functionality stops working when I try to add text after the "Work" button. The callback function is no lon ...

I am experiencing issues with my Vue.js application when trying to send an HTTP POST request

I am encountering an issue in my Vuejs application while trying to send an HTTP POST request to my server. The error message that keeps popping up in the console is: TypeError: _api__WEBPACK_IMPORTED_MODULE_0__.default.post is not a function at Object ...

How do I set up a timing mechanism in a VSCode extension to automatically clear error messages after a specified duration?

I'm currently in the process of developing a VSCode extension, and ran into an issue where I need to display an error message if a certain condition is met. However, I want this error message to automatically disappear after a set amount of time (say, ...

Ways to simulate a function that is a part of an internal object

Is there a way to mock a method from an object within my UnderTest class? When the Update method is triggered by an event from a child component, I need to mock the service.saveNewElement(data) method in order to test data in the then() block. <script ...

Angular 7 - Implementing periodic JSON data retrieval from server and maintaining local storage within Angular application

Seeking guidance on how to handle updating a static json file stored in the assets directory in an Angular 7 project. The goal is to periodically fetch a json from a server, check for updates, and perform post-processing on the data in the static file (ess ...

Aurelia's navigation feature adds "?id=5" to the URL instead of "/5"

I have set up my Aurelia Router in app.ts using the configureRouter function like this: configureRouter(config, router: Router) { config.map([ { route: ['users', 'users/:userId?'], na ...

Is there a way to trigger a JavaScript function upon checking a checkbox?

Is there a way to trigger a Javascript function when a checkbox within a gridview is checked? protected void ChangeStatusSevenDays_Click(object sender, EventArgs e) { for (int i = 0; i < grdImoveis2.Rows.Count; i++) { GridViewRow RowVie ...

What is the method for retrieving an attribute's value from an object that does not have key-value pairs?

My current project involves working with dynamoose and running a query that produces the following output: [ Document { cost: 100 }, lastKey: undefined, count: 1, queriedCount: undefined, timesQueried: 1 ] When I use typeof(output), it returns O ...

Lottie-web experiences a memory leak

Currently implementing lottie web on my front-end, but encountering persistent memory leaks. The JavaScript VM instance remains below 10MB when lottie is removed altogether. However, upon enabling lottie, the memory usage escalates rapidly whenever the pa ...

Tips for combining or adding duplicated values in a Javascript array

I am facing a problem with an array object that looks like this: [ {"item_id":1,"name":"DOTA 2 Backpack","image":"XXX","qty":1,"original_price":1450000,"total_price":1450000}, {"item_id":2,"name":"Mobile Legend Backpack","image":"XXX","qty":1,"origin ...

Sending a post request from JavaScript to Django Rest Framework

I am working with a DFR api endpoint: url = http://example.com/api/data/ The URL of the page where I am running JavaScript code is: http://example.com/page/1/ I have logged in as User1 in my browser. POST request - from DRF browser API - successful. G ...

Steps for converting an observable http request into a promise request

Here is a link to my service file: This is the TypeScript file for my components: And these are the response models: I am currently facing difficulties with displaying asynchronously fetched data in my component's TypeScript file using an Observabl ...

Verify the presence of blank space with javaScript

I currently have a text box on my website. <input type="text" name="FirstName" value="Mickey"> My goal is to prevent the user from entering empty spaces, tabs, or new lines in the text box. However, I want to allow spaces between characters. Does a ...

Encountering a type error when attempting to assign an interface to a property

In my Angular project, I am working with typescript and trying to assign the IInfoPage interface to some data. export interface IInfoPage { href: string; icon: string; routing: boolean; order: number; styleType: string; ...

Coordinating a series of maneuvers

When it comes to coordinating multiple sequential actions in Redux, I find it a bit confusing. I have an application with a summary panel on the left and a CRUD panel on the right. My goal is to have the app automatically update the summary after a CRUD op ...