touchableopacity.md

id	touchableopacity
title	TouchableOpacity
layout	docs
category	components
permalink	Docs/Components/touchableopacity.md
next	touchablewithoutfeedback
previous	touchablenativefeedback

A wrapper for making views respond properly to focusable. On press down, the opacity of the wrapped view is decreased, dimming it.

Opacity is controlled by wrapping the children in an Animated.View, which is added to the view hiearchy. Be aware that this can affect layout.

Example:

renderButton: function() {
  return (
    <TouchableOpacity onPress={this._onPressButton}>
      <Image
        style={styles.button}
        source={require('./myButton.png')}
      />
    </TouchableOpacity>
  );
},

Example

import React, { Component } from 'react'
import {
  AppRegistry,
  StyleSheet,
  TouchableOpacity,
  Text,
  View,
} from 'react-native'

class App extends Component {
  constructor(props) {
    super(props)
    this.state = { count: 0 }
  }

  onPress = () => {
    this.setState({
      count: this.state.count+1
    })
  }

 render() {
   return (
     <View style={styles.container}>
       <TouchableOpacity
         style={styles.button}
         onPress={this.onPress}
       >
         <Text>  Here </Text>
       </TouchableOpacity>
       <View style={[styles.countContainer]}>
         <Text style={[styles.countText]}>
            { this.state.count !== 0 ? this.state.count: null}
          </Text>
        </View>
      </View>
    )
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    paddingHorizontal: 10
  },
  button: {
    alignItems: 'center',
    backgroundColor: '#DDDDDD',
    padding: 10
  },
  countContainer: {
    alignItems: 'center',
    padding: 10
  },
  countText: {
    color: '#FF00FF'
  }
})

AppRegistry.registerComponent('App', () => App)

Props

• TouchableWithoutFeedback props...

• activeOpacity

---

Reference

Props

activeOpacity

Determines what the opacity of the wrapped view should be when touch is active. Defaults to 0.2.

Type	Required
number	No