npm install react-native-pulse --save

const Pulse = require('react-native-pulse');

class helloWorld extends Component {
  render() {
    return (
      <View style={styles.container}>
        <Pulse color='orange' numPulses={3} diameter={400} speed={20} duration={2000} />
      </View>
    );
  }  
}

Component accepts several self-descriptive properties:

• color (String) - Backgroundcolor for pulse. React-native colors supported. Default color is blue.
• diameter (Number) - This is the maximum diameter that a pulse will be. Defaults to 400.
• duration (Number) - Duration in milliseconds this is the delay new pulses will be created. Defaults to 1000.
• image (Object) - Image for center pulse thumbnail.
• initialDiameter (Number) - The diameter new pulses will start with. Defaults to 0.
• numPulses (Number) - This is the number of pulses that will be rendered. Defaults to 3.
• pulseStyle (Object) - Style properties for pulses (borderColor eg.)
• speed (Number) - Speed in milliseconds pulse will redraw. Defaults to 10.
• style (Object) - Style properties for pulse container (positioning eg.)