13:45 - Modal in Komponente NewQuote

App.js

import React, { Component } from 'react';
import { Button, StyleSheet, View } from 'react-native';
import Quote from './js/components/Quote';
import NewQuote from './js/components/NewQuote';

const data = [
  {
    text:
      'Probleme kann man niemals mit derselben Denkweise lösen, durch die sie entstanden sind.',
    author: 'Albert Einstein'
  },
  {
    text:
      'Man braucht nichts im Leben zu fürchten, man muss nur alles verstehen.',
    author: 'Marie Curie'
  },
  { text: 'Nichts ist so beständig wie der Wandel.', author: 'Heraklit' }
];

export default class App extends Component {
  state = { index: 0, showModal: false }; // initialer Zustand

  render() {
    let index = this.state.index; // aktueller Zustand
    const quote = data[index];
    let nextIndex = index + 1;
    if (nextIndex === data.length) nextIndex = 0;
    return (
      // JSX
      <View style={styles.container}>
        <NewQuote
          visible={this.state.showModal}
          onRequestClose={() => this.setState({ showModal: false })}
        />
        <Quote text={quote.text} author={quote.author} />
        <View style={{ marginBottom: 10 }}>
          <Button
            title="Neues Zitat"
            onPress={() => this.setState({ showModal: true })}
          />
        </View>
        <Button
          title="Nächstes Zitat"
          onPress={() => this.setState({ index: nextIndex })}
        />
      </View>
    );
  }
}

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

NewQuote.js

// in js/components/ !!!

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

export default class NewQuote extends Component {
  render() {
    return (
      <Modal
        visible={this.props.visible}
        onRequestClose={this.props.onRequestClose}
      >
        <Text style={{ fontSize: 100 }}>MODAL!!!</Text>
      </Modal>
    );
  }
}