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Slider

A component used to select a single value from a range of values.

Usage

The example below shows how to use Slider to change a value used by Text. The value is stored using the state of the root component (App). The same component subscribes to the onValueChange of Slider and changes the value using setState.

import React from 'react';
import {StyleSheet, Text, View, Slider} from 'react-native';

export default class App extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      value: 50,
    };
  }

  change(value) {
    this.setState(() => {
      return {
        value: parseFloat(value),
      };
    });
  }

  render() {
    const {value} = this.state;
    return (
      <View style={styles.container}>
        <Text style={styles.text}>{String(value)}</Text>
        <Slider
          step={1}
          maximumValue={100}
          onValueChange={this.change.bind(this)}
          value={value}
        />
      </View>
    );
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    flexDirection: 'column',
    justifyContent: 'center',
  },
  text: {
    fontSize: 50,
    textAlign: 'center',
  },
});

Props

• View props...
• style
• disabled
• maximumValue
• minimumTrackTintColor
• minimumValue
• onSlidingComplete
• onValueChange
• step
• maximumTrackTintColor
• testID
• value
• thumbTintColor
• maximumTrackImage
• minimumTrackImage
• thumbImage
• trackImage

---

Reference

Props

style

Used to style and layout the Slider. See StyleSheet.js and ViewStylePropTypes.js for more info.

Type	Required
View.style	No

---

disabled

If true the user won't be able to move the slider. Default value is false.

Type	Required
bool	No

---

maximumValue

Initial maximum value of the slider. Default value is 1.

Type	Required
number	No

---

minimumTrackTintColor

The color used for the track to the left of the button. Overrides the default blue gradient image on iOS.

Type	Required
color	No

---

minimumValue

Initial minimum value of the slider. Default value is 0.

Type	Required
number	No

---

onSlidingComplete

Callback that is called when the user releases the slider, regardless if the value has changed. The current value is passed as an argument to the callback handler.

Type	Required
function	No

---

onValueChange

Callback continuously called while the user is dragging the slider.

Type	Required
function	No

---

step

Step value of the slider. The value should be between 0 and (maximumValue - minimumValue). Default value is 0.

Type	Required
number	No

---

maximumTrackTintColor

The color used for the track to the right of the button. Overrides the default blue gradient image on iOS.

Type	Required
color	No

---

testID

Used to locate this view in UI automation tests.

Type	Required
string	No

---

value

Initial value of the slider. The value should be between minimumValue and maximumValue, which default to 0 and 1 respectively. Default value is 0.

This is not a controlled component, you don't need to update the value during dragging.

Type	Required
number	No

---

thumbTintColor

Color of the foreground switch grip.

Type	Required	Platform
color	No	Android

---

maximumTrackImage

Assigns a maximum track image. Only static images are supported. The leftmost pixel of the image will be stretched to fill the track.

Type	Required	Platform
Image.propTypes.source	No	iOS

---

minimumTrackImage

Assigns a minimum track image. Only static images are supported. The rightmost pixel of the image will be stretched to fill the track.

Type	Required	Platform
Image.propTypes.source	No	iOS

---

thumbImage

Sets an image for the thumb. Only static images are supported.

Type	Required	Platform
Image.propTypes.source	No	iOS

---

trackImage

Assigns a single image for the track. Only static images are supported. The center pixel of the image will be stretched to fill the track.

Type	Required	Platform
Image.propTypes.source	No	iOS