Radial Menu

By Utkarsh Lubal

Published in Others

May 06, 2023

1 min read

Introduction

React Native Radial Menu is a customizable component for creating circular menus in your React Native app. The radial menu consists of a center element and several surrounding elements that are triggered by a press event. The component can be used for a wide range of use cases such as navigation, input selection, and more. Here are some of the props available for the React Native Radial Menu:

```
onOpen: A callback function that will be called when the radial menu is opened.
```

onClose: A callback function that will be called when the radial menu is closed.

startAngle: The angle at which the first element of the menu will be positioned, measured in degrees.

endAngle: The angle at which the last element of the menu will be positioned, measured in degrees.

radius: The radius of the menu, measured in pixels.

centerItem: The item that will be displayed in the center of the menu.

renderItem: A function that takes an item as a parameter and returns a React element that will be displayed in the menu.

These are just a few of the available props for the React Native Radial Menu. You can customize the appearance and behavior of the menu to fit your specific use case.
Note that the React Native Radial Menu component is not a part of the core React Native library and must be installed separately. You can install it using npm or yarn.

Props

This menu can be fully customized using props.

Important

itemRadius (Number) 30 - Menu item radius
menuRadius (Number) 100- Distance between root and items in open state.
spreadAngle (Number: 0 - 360) 360 - The angle in degrees based on which menu items are spread on a circle around our root. E.g. 360 full circle, 180 half of circle and so on.
startAngle (Number) 0 - Items are distributed in clockwise direction starting from startAngle. 0 is left, 90 top, and so on.

onOpen (Function) - Called immediately after the menu has entered the open state.
onClose (Function) - Called immediately after the menu has entered the close state.

onSelect (Function) - Called when the item is selected

Installation

npm install react-native-radial-menu

Example

import React, { useState } from 'react';
import { StyleSheet, View, Text } from 'react-native';
import RadialMenu from 'react-native-radial-menu';

const App = () => {
  const [isOpen, setIsOpen] = useState(false);

  return (
    <View style={styles.container}>
      <RadialMenu
        onOpen={() => setIsOpen(true)}
        onClose={() => setIsOpen(false)}
        distance={70}
        spacing={35}
        spreadAngle={150}
        startAngle={135}
        isOpen={isOpen}
        backgroundColor="#fff"
        mainButton={{
          backgroundColor: '#a2a2a2',
          borderRadius: 20,
          height: 40,
          width: 40,
          justifyContent: 'center',
          alignItems: 'center',
        }}
        mainButtonIcon={
          <Text style={{ color: '#fff', fontSize: 24 }}>+</Text>
        }
        menuButton={{
          backgroundColor: '#a2a2a2',
          borderRadius: 20,
          height: 40,
          width: 40,
          justifyContent: 'center',
          alignItems: 'center',
        }}
        menuButtonIcon={
          <Text style={{ color: '#fff', fontSize: 24 }}>•</Text>
        }
      >
        <View style={styles.menuItem}>
          <Text style={styles.menuText}>A</Text>
        </View>
        <View style={styles.menuItem}>
          <Text style={styles.menuText}>1</Text>
        </View>
        <View style={styles.menuItem}>
          <Text style={styles.menuText}>2</Text>
        </View>
        <View style={styles.menuItem}>
          <Text style={styles.menuText}>3</Text>
        </View>
        <View style={styles.menuItem}>
          <Text style={styles.menuText}>4</Text>
        </View>
      </RadialMenu>
    </View>
  );
};

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
  },
  menuItem: {
    backgroundColor: '#a2a2a2',
    borderRadius: 20,
    height: 40,
    width: 40,
    justifyContent: 'center',
    alignItems: 'center',
  },
  menuText: {
    color: '#fff',
    fontSize: 16,
    fontWeight: 'bold',
  },
});

export default App;