App.js

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

export default class App extends React.Component {
  render() {
    let pic = {
      uri: 'https://upload.wikimedia.org/wikipedia/commons/d/de/Bananavarieties.jpg'
    };
    return (
      <View style={styles.container}>
        <Text>Hola Leidy mi hermosa bb</Text>
        <Text>Te amo mucho.</Text>
        <Greeting name='yupi' />
        <Bananas />
        <Blink text='I love to blink'/>
      </View>
    );
  }
}

class Greeting extends Component {
  render() {
    return (
      <Text>Hello {this.props.name}!</Text>
    );
  }
}

class Bananas extends Component {
  render() {
    let pic = {
      uri: 'https://upload.wikimedia.org/wikipedia/commons/d/de/Bananavarieties.jpg'
    };
    return (
      <Image source={pic} style={{width: 193, height: 110}}/>
    );
  }
}

class Blink extends Component {
  constructor(props) {
    super(props);
    this.state = {isShowingText: true};

    // Toggle the state every second
    setInterval(() => {
      this.setState(previousState => {
        return { isShowingText: !previousState.isShowingText };
      });
    }, 1000);
  }

  render() {
    let display = this.state.isShowingText ? this.props.text : ' ';
    return (
      <Text>{display}</Text>
    );
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: '#fff',
    alignItems: 'center',
    justifyContent: 'center',
  },
});