react-native-touchable-safe

A single easy-to-use <Touchable> component, which harnesses the power of all React Native's Touchable* components.

• Simple API that bridges the differences between RN's various Touchable* types.
• A consistent View hierarchy, to avoid tricky layout issues when switching between Touchable* types.
• Handling the incompatability of ripple customisation on Android API level < 21.

Motivation

As it stands, TouchableOpacity and TouchableHighlight wrap their children in a View, whereas TouchableNativeFeedback and TouchableWithoutFeedback do not. This can lead to headaches and platform-specific bugs when trying to create advanced Flexbox layouts with different touchable styles on Android/iOS. An example of this is available here: https://snack.expo.io/ry6kXjX8W

This library makes the situation consistent and easy to reason about:

• <Touchable> always introduces another view in the hierarchy, which can have its layout customised with outerStyle.
• <Touchable> always must only have one child, which it applies its effect (e.g. opacity) to natively.

Installation

$ npm install --save react-native-touchable-safe

# Or, with Yarn
$ yarn add react-native-touchable-safe

Getting started

This component provides a simple API, where alternating the component used per platform is as simple as:

return (
  <Touchable android="native" ios="opacity">
    <MyButton />
  </Touchable>
)

In fact, these are the default behaviours, so simply <Touchable> is enough to achieve this effect. The android/ios props only need to be used when deviating from the defaults.

Props

If you don't want to use the defaults (TouchableNativeFeedback on Android and TouchableOpacity on iOS), you can specify another type. Use all to set all platforms to the same effect, or ios and android to differentiate it per platform.

• all?: 'opacity' | 'highlight' | 'without'
• ios?: 'opacity' | 'highlight' | 'without' - (default: 'opacity')
• android?: 'native' | 'opacity' | 'highlight' | 'without' - (default: 'native')

Some very common behaviours used by all touchable types:

• onPress?: () => void
• outerStyle?: Object | number - Style to pass to the outer View component which wraps every type of touchable component. Typically used to specify things like <Touchable outerStyle={{ flex: 1 }}>.
• outerProps?: Object - Similar to outerStyle, but lets you set any props (although style is the main use case).
• disabled?: boolean - Remove any touch functionality and feedback.

Seeing as setting a custom native ripple requires calling TouchableNativeFeedback.Ripple, the following top-level convenience props can be used to quickly customise the ripple:

• nativeBorderless?: boolean - For android="native", should the ripple effect be borderless.
• nativePressColor?: string - (default: 'rgba(0, 0, 0, .1)') - For android="native", what color should the ripple be.

Any props which you only want passed to one type of touchable component can be controlled with the following props.

• nativeProps?: Object - Any props to pass on to a TouchableNativeFeedback component.
• opacityProps?: Object - Any props to pass on to a TouchableOpacity component.
• highlightProps?: Object - Any props to pass on to a TouchableHighlight component.
• withoutProps?: Object - Any props to pass on to a TouchableWithoutFeedback component.

And finally, anything else will be passed down to all touchable components.

Examples

Defaults

NativeFeedback on Android, Opacity on iOS

import React from 'react'
import Touchable from 'react-native-touchable-safe'
import MyButton from './MyButton'

export default () => (
  <Touchable onPress={() => console.log('Pressed')}>
    <MyButton />
  </Touchable>
)

Mixed

A row of different styled buttons, which all behave consistently

import React from 'react'
import { StyleSheet } from 'react-native'
import Touchable from 'react-native-touchable-safe'
import MyButton from './MyButton'

export default ({ disabled }) => (
  <View style={styles.row}>
    {/* Android: native, iOS: highlight */}
    <Touchable
      ios="highlight"
      onPress={() => {
        console.log('Pressed A')
      }}
      outerStyle={styles.touchWrap}
      nativeBorderless
      nativePressColor="rgba(0, 0, 255, .5)"
    >
      <MyButton title="A" />
    </Touchable>

    {/* Both: opacity (50% opacity) */}
    <Touchable
      all="opacity"
      onPress={() => {
        console.log('Pressed B')
      }}
      outerStyle={styles.touchWrap}
      opacityProps={{ activeOpacity: 0.5 }}
    >
      <MyButton title="B" />
    </Touchable>

    {/* Both: no feedback */}
    <Touchable
      all="without"
      onPress={() => {
        console.log('Pressed C')
      }}
      outerStyle={styles.touchWrap}
    >
      <MyButton title="C" />
    </Touchable>

    {/* Both: defaults, disabled based on prop */}
    <Touchable
      onPress={() => {
        console.log('Pressed D')
      }}
      outerStyle={styles.touchWrap}
      disabled={disabled}
    >
      {/* Visual styling of disabled elements handled manually */}
      <MyButton title="D" greyedOut={disabled} />
    </Touchable>
  </View>
)

const styles = StyleSheet.create({
  row: {
    flexDirection: 'row',
    alignItems: 'top',
    height: 200,
  },
  touchWrap: {
    flex: 1,
    height: 100,
  },
})