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React native ScrollView scroll to position

Infinitbility
React Native
October 11th, 2020 · 1 min read
React native ScrollView scroll to position

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The simplest way of scroll to position in react native using ScrollView ref.

Introduction

The simplest way of auto-scroll store scrolled position on our state and use in the vertical and horizontal auto-scroll.

but how it is possible auto-scroll in react native?

for auto-scroll, we are use scrollView as a ref, and ScrollView provides scrollTo function for scrolling on any position in a scroll view.

First Create Refs on Class

Refs provide a way to access DOM nodes or React elements created in the render method. ~ from the react-native document

1class MyComponent extends React.Component {
2 constructor(props) {
3 super(props);
4 this.ScrollView = React.createRef();
5 }
6}

Store scrolled height and width on state

State generally use in react-native to store data.

1<ScrollView
2 showsVerticalScrollIndicator={false}
3 // define ref
4 ref={ref => (this.ScrollView = ref)}
5 // use for store scrolled value
6 onScroll={event =>
7 this.setState({horizontalScroll:event.nativeEvent.contentOffset.x, VerticalScroll:event.nativeEvent.contentOffset.y})
8 }
9>
10// Your list data
11</ScrollView>

Use ScrollView ref to scroll to a destination position

1// auto scroll function
2autosScroll(){
3
4 // X use for horizontal
5 let horizontalScroll = this.state.horizontalScroll;
6
7 // Y use for Vertical
8 let VerticalScroll = this.state.VerticalScroll;
9
10 this.ScrollView.scrollTo({x: horizontalScroll, y: VerticalScroll, animated: true});
11}

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More From React Native Tutorial

Basics

  1. Introduction To React Native
  2. React Native Environment Setup using expo
  3. React Native Environment Setup for windows
  4. React Native Environment setup on Mac OS
  5. React Native Environment setup on linux
  6. React Native Project Structure
  7. React Native State
  8. React Native Props
  9. React Native Styling
  10. React Native Flexbox
  11. React Native Text
  12. React Native Textinput
  13. React Native Commands
  14. React Native ScrollView

Advances

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  2. React Native Fonts
  3. React Native SQLite
  4. React Native DatepickerAndroid
  5. React native ScrollView scroll to position
  6. How to align icon with text in react native
  7. React Native Image
  8. React Native Firebase Crashlytics
  9. React Native Async Storage
  10. React Native Share

Error & Issue Solution

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  3. Task :app:transformNativeLibsWithMergeJniLibsForDebug FAILED In React Native
  4. Unable to determine the current character, it is not a string, number, array, or object in react native
  5. App crashed immediately after install react native video or track player
  6. how to delete SQLite database in android react native
  7. React native material dropdown twice click issue
  8. How to get the current route in react-navigation?
  9. how to disable drawer on the drawer navigation screen?
  10. Image not showing in ios 14 react native
  11. React Native image picker launchimagelibrary on second time issue
  12. how to open any link from react native render Html

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