Animated TabBar

A 60FPS animated tab bar with a variety of cool animation presets 😎

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Table of Contents

1. Features
2. Installation
3. Usage
   1. Animated Icons
4. Props
5. Presets
   1. Bubble Preset
   2. Flashy Preset
   3. Material Preset
6. Migration
7. To Do
8. Credits
9. License

Features

• 60FPS smooth animation for all presets.
• Fully integrated with React Navigation v4 & v5.
• Standalone usage.
• Right-to-left layout support.
• Accessibility support.
• Written in TypeScript.

Installation

yarn add @gorhom/animated-tabbar
# or
npm install @gorhom/animated-tabbar

Also, you need to install react-native-reanimated, react-native-gesture-handler & react-native-svg, and follow their installation instructions.

Usage

Originally Animated TabBar worked only with React Navigation, but I notice that it could be use as a standalone component and be more useful for the community.

Now the library export two main components:

• AnimatedTabBar ( default ) : the React Navigation integrated tab bar.
• AnimatedTabBarView: the standalone tab bar.

Standalone Component

import React, { useState } from 'react';
import { View, Text, StyleSheet } from 'react-native';
import AnimatedTabBar, {TabsConfig, BubbleTabBarItemConfig} from '@gorhom/animated-tabbar';

const tabs: TabsConfig<BubbleTabBarItemConfig> = {
  Home: {
    labelStyle: {
      color: '#5B37B7',
    },
    icon: {
      component: /* ICON COMPONENT */,
      activeColor: 'rgba(91,55,183,1)',
      inactiveColor: 'rgba(0,0,0,1)',
    },
    background: {
      activeColor: 'rgba(223,215,243,1)',
      inactiveColor: 'rgba(223,215,243,0)',
    },
  },
  Profile: {
    labelStyle: {
      color: '#1194AA',
    },
    icon: {
      component: /* ICON COMPONENT */,
      activeColor: 'rgba(17,148,170,1)',
      inactiveColor: 'rgba(0,0,0,1)',
    },
    background: {
      activeColor: 'rgba(207,235,239,1)',
      inactiveColor: 'rgba(207,235,239,0)',
    },
  },
};

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#999',
  },
  tabBarContainer: {
    borderRadius: 25,
  },
});

export default function App() {
  const [index, setIndex] = useState(0);
  return (
    <View style={styles.container}>
      <Text>{index}</Text>
      <AnimatedTabBarView
        tabs={tabs}
        itemOuterSpace={{
          horizontal: 6,
          vertical: 12,
        }}
        itemInnerSpace={12}
        iconSize={20}
        style={styles.tabBarContainer}
        index={index}
        onIndexChange={setIndex}
      />
    </View>
  )
}

React Navigation v5 (TypeScript)

import React from 'react';
import { NavigationContainer } from '@react-navigation/native';
import { createBottomTabNavigator } from '@react-navigation/bottom-tabs';
import AnimatedTabBar, {TabsConfig, BubbleTabBarItemConfig} from '@gorhom/animated-tabbar';

const tabs: TabsConfig<BubbleTabBarItemConfig> = {
  Home: {
    labelStyle: {
      color: '#5B37B7',
    },
    icon: {
      component: /* ICON COMPONENT */,
      activeColor: 'rgba(91,55,183,1)',
      inactiveColor: 'rgba(0,0,0,1)',
    },
    background: {
      activeColor: 'rgba(223,215,243,1)',
      inactiveColor: 'rgba(223,215,243,0)',
    },
  },
  Profile: {
    labelStyle: {
      color: '#1194AA',
    },
    icon: {
      component: /* ICON COMPONENT */,
      activeColor: 'rgba(17,148,170,1)',
      inactiveColor: 'rgba(0,0,0,1)',
    },
    background: {
      activeColor: 'rgba(207,235,239,1)',
      inactiveColor: 'rgba(207,235,239,0)',
    },
  },
};

const Tab = createBottomTabNavigator();

export default function App() {
  return (
    <NavigationContainer>
      <Tab.Navigator
        tabBar={props => (
          <AnimatedTabBar tabs={tabs} {...props} />
        )}
      >
        <Tab.Screen
          name="Home"
          component={HomeScreen}
        />
        <Tab.Screen
          name="Profile"
          component={ProfileScreen}
        />
      </Tab.Navigator>
    </NavigationContainer>
  )
}

React Navigation v5 (JavaScript)

import React from 'react';
import { NavigationContainer } from '@react-navigation/native';
import { createBottomTabNavigator } from '@react-navigation/bottom-tabs';
import AnimatedTabBar from '@gorhom/animated-tabbar';

const tabs = {
  Home: { // < Screen name
    labelStyle: {
      color: '#5B37B7',
    },
    icon: {
      component: /* ICON COMPONENT */,
      activeColor: 'rgba(91,55,183,1)',
      inactiveColor: 'rgba(0,0,0,1)',
    },
    background: {
      activeColor: 'rgba(223,215,243,1)',
      inactiveColor: 'rgba(223,215,243,0)',
    },
  },
  Profile: { // < Screen name
    labelStyle: {
      color: '#1194AA',
    },
    icon: {
      component: /* ICON COMPONENT */,
      activeColor: 'rgba(17,148,170,1)',
      inactiveColor: 'rgba(0,0,0,1)',
    },
    background: {
      activeColor: 'rgba(207,235,239,1)',
      inactiveColor: 'rgba(207,235,239,0)',
    },
  },
};

const Tab = createBottomTabNavigator();

export default function App() {
  return (
    <NavigationContainer>
      <Tab.Navigator
        tabBar={props => (
          <AnimatedTabBar tabs={tabs} {...props} />
        )}
      >
        <Tab.Screen
          name="Home"
          component={HomeScreen}
        />
        <Tab.Screen
          name="Profile"
          component={ProfileScreen}
        />
      </Tab.Navigator>
    </NavigationContainer>
  )
}

React Navigation v4

import React from 'react';
import {createAppContainer} from 'react-navigation';
import {createBottomTabNavigator} from 'react-navigation-tabs';
import {SafeAreaProvider} from 'react-native-safe-area-context';
import AnimatedTabBar, {TabsConfig, BubbleTabBarItemConfig} from '@gorhom/animated-tabbar';

const tabs: TabsConfig<BubbleTabConfig> = {
  Home: {
    labelStyle: {
      color: '#5B37B7',
    },
    icon: {
      component: /* ICON COMPONENT */,
      activeColor: 'rgba(91,55,183,1)',
      inactiveColor: 'rgba(0,0,0,1)',
    },
    background: {
      activeColor: 'rgba(223,215,243,1)',
      inactiveColor: 'rgba(223,215,243,0)',
    },
  },
  Profile: {
    labelStyle: {
      color: '#1194AA',
    },
    icon: {
      component: /* ICON COMPONENT */,
      activeColor: 'rgba(17,148,170,1)',
      inactiveColor: 'rgba(0,0,0,1)',
    },
    background: {
      activeColor: 'rgba(207,235,239,1)',
      inactiveColor: 'rgba(207,235,239,0)',
    },
  },
};

const TabNavigator = createBottomTabNavigator(
  {
    Home: HomeScreen,
    Profile: ProfileScreen,
  },
  {
    tabBarComponent: props => <AnimatedTabBar tabs={tabs} {...props} />,
  },
);

const AppContainer = createAppContainer(TabNavigator);

export default () => (
  <SafeAreaProvider>
    <AppContainer />
  </SafeAreaProvider>
);

To configure animated icons, please have a look at Animated Icons.

Props

name	description	required	type	default
preset	Animation preset, currently options are ['bubble', 'flashy', 'material'].	NO	PresetEnum	'bubble'
tabs	Tabs configurations. A generic dictionary of selected preset tab config.	YES	TabsConfig<T>
style	View style to be applied to tab bar container, default value will be based on selected preset.	NO	StyleProp
duration	Animation duration, default value will be based on selected preset.	NO	number
easing	Animation easing function, default value will be based on selected preset.	NO	EasingFunction
itemInnerSpace	Tab item inner space to be added to the tab item, default value will be based on selected preset.	NO	number | Space
itemOuterSpace	Tab item outer space to be added to the tab item, default value will be based on selected preset.	NO	number | Space
itemContainerWidth	Tab item width stretch strategy, default value will be based on selected preset.	NO	'auto' | 'fill'
iconSize	Tab item icon size, default value will be based on selected preset.	NO	number
isRTL	Tab bar layout and animation direction.	NO	boolean	false
onLongPress	Callback on item long press, by default it is integrated with React Navigation.	NO	(index: number) => void	noop

Preset Configurations

Some presets will have its own configurations - like material - which they will be added the root view props.

Material Preset Example

notice here we added animation, inactiveOpacity & inactiveScale to the root view.

import React from 'react';
import { NavigationContainer } from '@react-navigation/native';
import { createBottomTabNavigator } from '@react-navigation/bottom-tabs';
import AnimatedTabBar, {TabsConfig, MaterialTabBarItemConfig} from '@gorhom/animated-tabbar';

const tabs: TabsConfig<MaterialTabBarItemConfig> = {
Home: {
  icon: {
    component: /* ICON COMPONENT */,
    color: 'rgba(255,255,255,1)',
  },
  ripple: {
    color: '#5B37B7',
  },
},
Profile: {
  icon: {
    component: /* ICON COMPONENT */,
    color: 'rgba(255,255,255,1)',
  },
  ripple: {
    color: '#1194AA',
  },
},
};

const Tab = createBottomTabNavigator();

export default function App() {
return (
  <NavigationContainer>
    <Tab.Navigator
      tabBar={props => (
        <AnimatedTabBar
          tabs={tabs}
          animation="iconWithLabelOnFocus"
          inactiveOpacity={0.25}
          inactiveScale={0.5}
          {...props}
        />
      )}
    >
      <Tab.Screen
        name="Home"
        component={HomeScreen}
      />
      <Tab.Screen
        name="Profile"
        component={ProfileScreen}
      />
    </Tab.Navigator>
  </NavigationContainer>
)
}

Presets

Originally Animated TabBar started with Bubble as the only animation preset embedded. However, I felt the library structure could include many other variety of animation presets.

Bubble Preset

Flashy Preset

Material Preset

Migration

V1 to V2

Due to extend the library functionality, I had to rename existing interfaces as following:

• BubbleTabConfig to BubbleTabBarItemConfig
• BubbleTabIconProps to BubbleTabBarIconProps
• FlashyTabConfig to FlashyTabBarItemConfig
• FlashyTabIconProps to FlashyTabBarIconProps

To Do

• Add accessibility support.
• Add more presets (PR are welcome).

Built With ❤️

• react-native-reanimated
• react-native-gesture-handler
• react-native-redash
• react-native-svg
• @react-native-community/bob

Author

• Mo Gorhom

License

MIT

Liked the library? 😇

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