react-native-curved-bottom-bar

A high performance, beautiful and fully customizable curved bottom navigation bar for React Native. Implemented using react-native-svg and @react-navigation/bottom-tabs.

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Free React Native Boilerplate

React Native Template with a beautiful UI.

Getting started

npm install react-native-curved-bottom-bar --save

or

yarn add react-native-curved-bottom-bar

Now we need to install react-native-svg and @react-navigation/bottom-tabs.

Demo

CurvedBottomBar.Navigator

| Props | Params | isRequire | Description | |--------------------|-------------------------------------------------------| --------- |-------------------------------------------------------------------| | type | 'DOWN' or 'UP' | Yes | Type of the center tab item, downward curve or upward curve | | circlePosition | 'CENTER' or 'LEFT' or 'RIGHT' | No | Position of circle button | | initialRouteName | String | Yes | The name of the route to render on first load of the navigator | | tabBar | ({ routeName, selectedTab, navigate }) => JSX.Element | Yes | Function that returns a React element to display as the tab bar | | renderCircle | ({ routeName, selectedTab, navigate }) => JSX.Element | Yes | Function that returns a React element to display as the center tab item | | circleWidth | Number | No | Customize width of the center tab item. Minimum is 50px and Maximum is 60px | style | ViewStyle | No | Styling for container view | | shadowStyle | ViewStyle | No | Styling for shadow view. | | width | Number | No | Customize width for container view | | height | Number | No | Customize height for container view, Minimum is 50px and Maximum is 90px | | borderTopLeftRight | Boolean | No | Border radius top left and top right of container view | | bgColor | String | No | Background color of container view |

CurvedBottomBar.Screen

| Props | Params | isRequire | Description | | ------------------ | ----------------------------- | --------- | ----------------------------------------------------------------------------------------- | | name | String | Yes | Name of the route to jump to | | position | 'LEFT' or 'RIGHT' or 'CIRCLE' | Yes | Set position of tabbar icon to the left or right of the circle button. Use type "CIRCLE" only when you want the circle button is a tabview | | component | (props) => JSX.Element | Yes | Screen params to merge into the destination route |

API

| Function | Params | Description | | ------------------ | ----------------------------- | ----------------------------------------------------------------------------------------- | | setVisible | Boolean | Used to hide/show the tab bar. Ex: ref.current.setVisible(false) |

Use in Expo

import React from 'react';
import {
  Alert,
  Animated,
  StyleSheet,
  TouchableOpacity,
  View,
} from 'react-native';
import { CurvedBottomBarExpo } from 'react-native-curved-bottom-bar';
import Ionicons from '@expo/vector-icons/Ionicons';
import { NavigationContainer } from '@react-navigation/native';

const Screen1 = () => {
  return <View style={styles.screen1} />;
};

const Screen2 = () => {
  return <View style={styles.screen2} />;
};

export default function App() {
  const _renderIcon = (routeName, selectedTab) => {
    let icon = '';

    switch (routeName) {
      case 'title1':
        icon = 'ios-home-outline';
        break;
      case 'title2':
        icon = 'settings-outline';
        break;
    }

    return (
      <Ionicons
        name={icon}
        size={25}
        color={routeName === selectedTab ? 'black' : 'gray'}
      />
    );
  };
  const renderTabBar = ({ routeName, selectedTab, navigate }) => {
    return (
      <TouchableOpacity
        onPress={() => navigate(routeName)}
        style={styles.tabbarItem}
      >
        {_renderIcon(routeName, selectedTab)}
      </TouchableOpacity>
    );
  };

  return (
    <NavigationContainer>
      <CurvedBottomBarExpo.Navigator
        type="DOWN"
        style={styles.bottomBar}
        shadowStyle={styles.shawdow}
        height={55}
        circleWidth={50}
        bgColor="white"
        initialRouteName="title1"
        borderTopLeftRight
        renderCircle={({ selectedTab, navigate }) => (
          <Animated.View style={styles.btnCircleUp}>
            <TouchableOpacity
              style={styles.button}
              onPress={() => Alert.alert('Click Action')}
            >
              <Ionicons name={'apps-sharp'} color="gray" size={25} />
            </TouchableOpacity>
          </Animated.View>
        )}
        tabBar={renderTabBar}
      >
        <CurvedBottomBarExpo.Screen
          name="title1"
          position="LEFT"
          component={() => <Screen1 />}
        />
        <CurvedBottomBarExpo.Screen
          name="title2"
          component={() => <Screen2 />}
          position="RIGHT"
        />
      </CurvedBottomBarExpo.Navigator>
    </NavigationContainer>
  );
}

export const styles = StyleSheet.create({
  container: {
    flex: 1,
    padding: 20,
  },
  shawdow: {
    shadowColor: '#DDDDDD',
    shadowOffset: {
      width: 0,
      height: 0,
    },
    shadowOpacity: 1,
    shadowRadius: 5,
  },
  button: {
    flex: 1,
    justifyContent: 'center',
  },
  bottomBar: {},
  btnCircleUp: {
    width: 60,
    height: 60,
    borderRadius: 30,
    alignItems: 'center',
    justifyContent: 'center',
    backgroundColor: '#E8E8E8',
    bottom: 30,
    shadowColor: '#000',
    shadowOffset: {
      width: 0,
      height: 1,
    },
    shadowOpacity: 0.2,
    shadowRadius: 1.41,
    elevation: 1,
  },
  imgCircle: {
    width: 30,
    height: 30,
    tintColor: 'gray',
  },
  tabbarItem: {
    flex: 1,
    alignItems: 'center',
    justifyContent: 'center',
  },
  img: {
    width: 30,
    height: 30,
  },
  screen1: {
    flex: 1,
    backgroundColor: '#BFEFFF',
  },
  screen2: {
    flex: 1,
    backgroundColor: '#FFEBCD',
  },
});

Use in RN CLI

import React from 'react';
import {
  Alert,
  Animated,
  StyleSheet,
  TouchableOpacity,
  View,
} from 'react-native';
import { CurvedBottomBar } from 'react-native-curved-bottom-bar';
import Ionicons from 'react-native-vector-icons/Ionicons';
import { NavigationContainer } from '@react-navigation/native';

const Screen1 = () => {
  return <View style={styles.screen1} />;
};

const Screen2 = () => {
  return <View style={styles.screen2} />;
};

export default function App() {
  const _renderIcon = (routeName, selectedTab) => {
    let icon = '';

    switch (routeName) {
      case 'title1':
        icon = 'ios-home-outline';
        break;
      case 'title2':
        icon = 'settings-outline';
        break;
    }

    return (
      <Ionicons
        name={icon}
        size={25}
        color={routeName === selectedTab ? 'black' : 'gray'}
      />
    );
  };
  const renderTabBar = ({ routeName, selectedTab, navigate }) => {
    return (
      <TouchableOpacity
        onPress={() => navigate(routeName)}
        style={styles.tabbarItem}
      >
        {_renderIcon(routeName, selectedTab)}
      </TouchableOpacity>
    );
  };

  return (
    <NavigationContainer>
      <CurvedBottomBar.Navigator
        type="UP"
        style={styles.bottomBar}
        shadowStyle={styles.shawdow}
        height={55}
        circleWidth={50}
        bgColor="white"
        initialRouteName="title1"
        borderTopLeftRight
        renderCircle={({ selectedTab, navigate }) => (
          <Animated.View style={styles.btnCircleUp}>
            <TouchableOpacity
              style={styles.button}
              onPress={() => Alert.alert('Click Action')}
            >
              <Ionicons name={'apps-sharp'} color="gray" size={25} />
            </TouchableOpacity>
          </Animated.View>
        )}
        tabBar={renderTabBar}
      >
        <CurvedBottomBar.Screen
          name="title1"
          position="LEFT"
          component={() => <Screen1 />}
        />
        <CurvedBottomBar.Screen
          name="title2"
          component={() => <Screen2 />}
          position="RIGHT"
        />
      </CurvedBottomBar.Navigator>
    </NavigationContainer>
  );
}

export const styles = StyleSheet.create({
  container: {
    flex: 1,
    padding: 20,
  },
  shawdow: {
    shadowColor: '#DDDDDD',
    shadowOffset: {
      width: 0,
      height: 0,
    },
    shadowOpacity: 1,
    shadowRadius: 5,
  },
  button: {
    flex: 1,
    justifyContent: 'center',
  },
  bottomBar: {},
  btnCircleUp: {
    width: 60,
    height: 60,
    borderRadius: 30,
    alignItems: 'center',
    justifyContent: 'center',
    backgroundColor: '#E8E8E8',
    bottom: 18,
    shadowColor: '#000',
    shadowOffset: {
      width: 0,
      height: 1,
    },
    shadowOpacity: 0.2,
    shadowRadius: 1.41,
    elevation: 1,
  },
  imgCircle: {
    width: 30,
    height: 30,
    tintColor: 'gray',
  },
  tabbarItem: {
    flex: 1,
    alignItems: 'center',
    justifyContent: 'center',
  },
  img: {
    width: 30,
    height: 30,
  },
  screen1: {
    flex: 1,
    backgroundColor: '#BFEFFF',
  },
  screen2: {
    flex: 1,
    backgroundColor: '#FFEBCD',
  },
});