buttonsExample.js

export default class Buttons extends Component {
  state = {
    color: 'white',
  }

  render() {
    return (
      <View style={styles.container}>
        <Button title="Button 1" onPress={() => this.setState({ color: 'red' })} color="red"/>
        <Button title="Button 2" onPress={() => this.setState({ color: 'green' })} color="green"/>
        <Button title="Button 3" onPress={() => this.setState({ color: 'blue' })} color="blue"/>
        <View style={[styles.view, { backgroundColor: this.state.color }]} />
      </View>
    );
  }
}