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@kenetto/react-native-collapsible

v1.5.5

Published

Animated collapsible component for React Native using the Animated API. Good for accordions, toggles etc

Downloads

7

Readme

react-native-collapsible

Animated collapsible component for React Native using the Animated API

Pure JavaScript, supports dynamic content heights and components that is aware of its collapsed state (good for toggling arrows etc).

Installation

npm install --save react-native-collapsible

Collapsible Usage

import Collapsible from 'react-native-collapsible';

() => (
  <Collapsible collapsed={isCollapsed}>
    <SomeCollapsedView />
  </Collapsible>
);

Properties

| Prop | Description | Default | | ------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------- | | align | Alignment of the content when transitioning, can be top, center or bottom | top | | collapsed | Whether to show the child components or not | true | | collapsedHeight | Which height should the component collapse to | 0 | | enablePointerEvents | Enable pointer events on collapsed view | false | | duration | Duration of transition in milliseconds | 300 | | easing | Function or function name from Easing (or tween-functions if < RN 0.8). Collapsible will try to combine Easing functions for you if you name them like tween-functions. | easeOutCubic | | style | Optional styling for the container | | | onAnimationEnd | Callback when the toggle animation is done. Useful to avoid heavy layouting work during the animation | () => {} |

Accordion Usage

This is a convenience component for a common use case, see demo below.

import Accordion from 'react-native-collapsible/Accordion';

() => (
  <Accordion
    activeSections={[0]}
    sections={['Section 1', 'Section 2', 'Section 3']}
    renderSectionTitle={this._renderSectionTitle}
    renderHeader={this._renderHeader}
    renderContent={this._renderContent}
    onChange={this._updateSections}
  />
);

Properties

| Prop | Description | | ------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------- | | sections | An array of sections passed to the render methods | | renderHeader(content, index, isActive, sections) | A function that should return a renderable representing the header | | renderContent(content, index, isActive, sections) | A function that should return a renderable representing the content | | renderFooter(content, index, isActive, sections) | A function that should return a renderable representing the footer | | renderSectionTitle(content, index, isActive) | A function that should return a renderable representing the title of the section outside the touchable element | | onChange(indexes) | A function that is called when the currently active section(s) are updated. | | activeSections | Control which indices in the sections array are currently open. If empty, closes all sections. | | underlayColor | The color of the underlay that will show through when tapping on headers. Defaults to black. | | touchableComponent | The touchable component used in the Accordion. Defaults to TouchableHighlight | | touchableProps | Properties for the touchableComponent | | disabled | Set whether the user can interact with the Accordion | | align | See Collapsible | | duration | See Collapsible | | easing | See Collapsible | | onAnimationEnd(key, index) | See Collapsible. | | expandFromBottom | Expand content from the bottom instead of the top | | expandMultiple | Allow more than one section to be expanded. Defaults to false. | | sectionContainerStyle | Optional styling for the section container. | | containerStyle | Optional styling for the Accordion container. |

Demo

demo

Example

Check full example in the Example folder.

import React, { Component } from 'react';
import Accordion from 'react-native-collapsible/Accordion';

const SECTIONS = [
  {
    title: 'First',
    content: 'Lorem ipsum...',
  },
  {
    title: 'Second',
    content: 'Lorem ipsum...',
  },
];

class AccordionView extends Component {
  state = {
    activeSections: [],
  };

  _renderSectionTitle = section => {
    return (
      <View style={styles.content}>
        <Text>{section.content}</Text>
      </View>
    );
  };

  _renderHeader = section => {
    return (
      <View style={styles.header}>
        <Text style={styles.headerText}>{section.title}</Text>
      </View>
    );
  };

  _renderContent = section => {
    return (
      <View style={styles.content}>
        <Text>{section.content}</Text>
      </View>
    );
  };

  _updateSections = activeSections => {
    this.setState({ activeSections });
  };

  render() {
    return (
      <Accordion
        sections={SECTIONS}
        activeSections={this.state.activeSections}
        renderSectionTitle={this._renderSectionTitle}
        renderHeader={this._renderHeader}
        renderContent={this._renderContent}
        onChange={this._updateSections}
      />
    );
  }
}

Transition backgrounds

If you combine with the react-native-animatable library you can easily transition the background color between the active and inactive state or add animations.

Lets augment the example above with:

import * as Animatable from 'react-native-animatable';

(...)

  _renderHeader(section, index, isActive, sections) {
    return (
      <Animatable.View
        duration={300}
        transition="backgroundColor"
        style={{ backgroundColor: (isActive ? 'rgba(255,255,255,1)' : 'rgba(245,252,255,1)') }}>
        <Text style={styles.headerText}>{section.title}</Text>
      </Animatable.View>
    );
  }

  _renderContent(section, i, isActive, sections) {
    return (
      <Animatable.View
        duration={300}
        transition="backgroundColor"
        style={{ backgroundColor: (isActive ? 'rgba(255,255,255,1)' : 'rgba(245,252,255,1)') }}>
        <Animatable.Text
          duration={300}
          easing="ease-out"
          animation={isActive ? 'zoomIn' : false}>
          {section.content}
        </Animatable.Text>
      </Animatable.View>
    );
  }

(...)

To produce this (slowed down for visibility):

accordion-demo

License

MIT License.