@yeonhub/react-native-top-sheet

A top sheet library for React-Native 🎯

언어

• 한국어 버전

Dependencies

📢 This library depends on the following two libraries:

Support

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Installation Guide

React Native CLI Users

1. Install the Library

You can install the @yeonhub/react-native-top-sheet package using either npm or yarn:

Using npm:

npm install @yeonhub/react-native-top-sheet

Using yarn:

yarn add @yeonhub/react-native-top-sheet

2. Install Dependencies

This library has the following dependencies that you need to install manually:

Using npm:

npm install react-native-gesture-handler react-native-reanimated

Using yarn:

yarn add react-native-gesture-handler react-native-reanimated

3. Update babel.config.js

In order to use react-native-reanimated, you need to add the plugin in your babel.config.js file. Add the following line to the plugins array:

module.exports = {
  ...
  plugins: ['react-native-reanimated/plugin'],
};

4. Wrap the Root Component with GestureHandlerRootView

To ensure proper functionality of gesture handlers, wrap your root component (e.g., App.js or App.tsx) with GestureHandlerRootView:

import React from 'react';
import { GestureHandlerRootView } from 'react-native-gesture-handler';
import App from './App'; // Your main component

export default function Main() {
  return (
    <GestureHandlerRootView style={{ flex: 1 }}>
      <App />
    </GestureHandlerRootView>
  );
}

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Expo Users

1. Install the Library

To install the library in an Expo project, use the following command:

npx expo install @yeonhub/react-native-top-sheet

2. Wrap the Root Component with GestureHandlerRootView

Similar to the CLI setup, wrap your root component with GestureHandlerRootView to ensure proper handling of gestures:

import React from 'react';
import { GestureHandlerRootView } from 'react-native-gesture-handler';
import App from './App'; // Your main component

export default function Main() {
  return (
    <GestureHandlerRootView style={{ flex: 1 }}>
      <App />
    </GestureHandlerRootView>
  );
}

3. Optional: Using ScrollView in TopSheet CollapsedContent/ExpandedContent

If you want to use ScrollView from react-native-gesture-handler within the collapsed or expanded content, you must verify the version of react-native-gesture-handler:

If your Expo project is using react-native-gesture-handler version 2.22.0 or above:

import { ScrollView } from 'react-native-gesture-handler';

If your Expo project is using a version lower than 2.22.0, you may face compatibility issues with the built-in GestureHandlerRootView. In this case, you should update react-native-gesture-handler:

npm uninstall react-native-gesture-handler
npm install react-native-gesture-handler

Then, you can proceed with using ScrollView as usual:

import { ScrollView } from 'react-native-gesture-handler';

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Troubleshooting

1. Invariant Violation: Tried to register two views with the same name RNGestureHandlerRootView

If you encounter the following error:

Invariant Violation: Tried to register two views with the same name `RNGestureHandlerRootView`

This means that GestureHandlerRootView is being used more than once in the app, which is not allowed.

Solution:

• For CLI Users: Check if your app is already wrapping the root component with GestureHandlerRootView. If you have already used it in your code, remove any additional wrapping. react-native-gesture-handler might be automatically applying this wrapper.

• For Expo Users: Expo SDK versions, along with certain versions of react-native-gesture-handler, may already automatically wrap the root component with GestureHandlerRootView. In this case, remove the manual wrapping of your root component with GestureHandlerRootView.

This will resolve the conflict by ensuring that there is only one instance of GestureHandlerRootView in the app.

Features

1. Customizable Top Sheet Height: You can adjust the height of the top sheet for both collapsed and expanded states, giving you flexibility in design.

2. Customizable Top Sheet Content: You can add your own content inside the top sheet for both collapsed and expanded states, making it fully customizable to your needs.

3. Customizable Top Sheet Background Color: The background color of the top sheet can be easily customized to match your app’s design.

4. Toggle Button Visibility: You can choose whether to show or hide the expand/collapse button, providing a cleaner look when needed.

5. Adjustable Toggle Touch Area: Customize the height of the touchable area around the toggle button for better user interaction.

6. Customizable Border Radius: Customize the corner radius (border radius) of the top sheet to fit your design preferences.

7. Customizable Animation Speed: Adjust the speed of the top sheet's opening/closing animation for a smoother or faster experience.

8. Change Callbacks: Listen to sheet state changes with callbacks for expand, collapse, and general state changes, enabling custom actions triggered by user interactions.

Usage

import { TopSheet } from '@yeonhub/react-native-top-sheet';

// Example usage in your component
const MyComponent = () => {
  return (
    <TopSheet
      minHeightFactor={3}
      maxHeightFactor={1.5}
      showBtn={true}
      // State change callbacks
      onExpand={() => console.log('Sheet expanded')}
      onCollapse={() => console.log('Sheet collapsed')}
      onChange={(isExpanded) =>
        console.log(`Sheet is ${isExpanded ? 'expanded' : 'collapsed'}`)
      }
      // Other props
      CollapsedContent={
        <View>
          <Text>React Native Top Sheet</Text>
        </View>
      }
      ExpandedContent={
        <View>
          <Text>React Native Top Sheet</Text>
          {/* Add more items as needed */}
        </View>
      }
    />
  );
};

⚠️ Important Notes

• ScrollView Usage: When using a ScrollView inside the top sheet, do not use the default ScrollView from React Native. Instead, import it from react-native-gesture-handler to ensure smooth scrolling interactions within the top sheet.

  import { ScrollView } from 'react-native-gesture-handler';

Contributing

See the contributing guide to learn how to contribute to the repository and the development workflow.

Default Configuration

The following are the default values for the TopSheet component, which you can customize:

Property	Default Value	Type	Description
minHeightFactor	6	number	The height of the top sheet when collapsed. Smaller values result in taller sheets. This value divides the screen height to calculate the minimum height of the top sheet (e.g., minSheetHeight = height / minHeightFactor).
maxHeightFactor	2	number	The height of the top sheet when expanded. Smaller values result in shorter sheets. This value divides the screen height to calculate the maximum height of the top sheet (e.g., maxSheetHeight = height / maxHeightFactor).
borderBackgroundColor	'transparent'	string	The background color that will fill the area created by the border radius. If the content under the top sheet has a background color, set borderBackgroundColor to match it so the space created by the border radius is covered.
topsheetColor	'gray'	string	The background color of the top sheet.
btnColor	'black'	string	The background color of the toggle button.
btnHeight	5	number	The height of the toggle button.
btnWidth	50	number	The width of the toggle button.
touchableArea	20	number	The height of the touchable area for the toggle button.
radius	20	number	The radius (corner rounding) of the top sheet.
showBtn	true	boolean	Whether or not to show the toggle button.
damping	10	number	The damping of the spring animation (controls how bouncy it is). Must be a value between 1 and 100. Default is 10.
stiffness	400	number	The stiffness of the spring animation (controls how fast it moves). Must be a value between 1 and 500. Default is 400.
onExpand	undefined	function	A callback function that is triggered when the sheet is fully expanded (at bottom position). Useful for triggering actions when the sheet expands.
onCollapse	undefined	function	A callback function that is triggered when the sheet is fully collapsed (at top position). Useful for triggering actions when the sheet collapses.
onChange	undefined	function	A callback function that receives the current expansion state (isExpanded) as a parameter. This is called whenever the sheet transitions between expanded and collapsed states.

You can customize these values by passing them as props to the TopSheet component.

License

MIT

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