plataforma-mobile/src/scenes/Live/Canvas.js

import React, { Component } from 'react';
import { Image } from 'react-native';

class Canvas extends Component  {
	state = { url: '' };
	diapoUrl(pdf, diapo) {
		const ret = `https://plataforma.especificosba.com.ar/diapo/${pdf}/${diapo}.png`;
		return ret;
	}

	render() {
		return (
		<Image
			source={{ uri: this.diapoUrl(this.props.pdf, this.props.diapo) }}
			style={[{ flex: 1, resizeMode: 'contain' }, this.props.style]}
		/>
		);
	}
}

export default Canvas;