App Movies with react native

Giới thiệu Mình sẻ làm một project movies with api từ 1 server khác và cách sử dụng một số thư viện trong react native. Install project Tạo tài khoản https://www.themoviedb.org/ để lấy api key data từ servers này Build project Mình sẻ làm 3 trang chính: Genders, Movies, DetailMovie ...

Giới thiệu

Mình sẻ làm một project movies with api từ 1 server khác và cách sử dụng một số thư viện trong react native.

Install project

Tạo tài khoản https://www.themoviedb.org/ để lấy api key data từ servers này

Build project

Mình sẻ làm 3 trang chính: Genders, Movies, DetailMovie
Sử dụng một số component của react native: StyleSheet, Text, View, TouchableOpacity, ListView, ActivityIndicator, Dimensions, Image ,... tài liệu: https://facebook.github.io/react-native/docs/getting-started.html
App này lấy api từ server nên chủ yếu dùng Fetch api, đọc tài liệu ở đây https://facebook.github.io/react-native/docs/network.html
Tạo một số file sau:

App.js

import React, { Component } from 'react';
import {
  StyleSheet,
  Text,
  View,
  ListView,
} from 'react-native';
// react-navigation hướng dẫn https://reactnavigation.org/docs/en/getting-started.html
import {StackNavigator,} from 'react-navigation';
import Genders from './src/Screens/Genders';
import Movies from './src/Screens/Movies';
import DetailMovie from './src/Screens/DetailMovie';

export default class App extends Component {
  render() {
    return <RootStack/>;
  }
}

const RootStack = StackNavigator(
  {
    genders: {screen: Genders},
    movies: {screen: Movies},
    detailMovie: {screen: DetailMovie}
  },
  {
    initialRouteName: 'genders',
  }
);

src/Screens/Genders.js

import React, { Component } from 'react';
import {
  StyleSheet,
  Text,
  View,
  TouchableOpacity,
  ListView,
  ActivityIndicator,
} from 'react-native';
import {StackNavigator,} from 'react-navigation';

class Genders extends Component {
  static navigationOptions = {
    title: 'Genders',
  };

  constructor() {
    super();
    this.state = {
      dataSource: this.listData([{id: "id", name: "null"}]),
      isLoading: true,
    };
  }

  componentDidMount() {
    this.getGendersFromApi();
  }

  listData(data) {
    ds = new ListView.DataSource({rowHasChanged: (r1, r2) => r1 !== r2});
    return ds.cloneWithRows(data);
  }

    // Fetch api hướng dẫn ở https://facebook.github.io/react-native/docs/network.html
  getGendersFromApi() {
    return fetch('https://api.themoviedb.org/3/genre/movie/list?api_key=xxxxxxx')
      .then((response) => response.json())
      .then((responseJson) => {
        this.setState({
          dataSource: this.listData(responseJson.genres),
          isLoading: false,
        });
      })
      .catch((error) => {
        console.error(error);
      });
  }

  render() {
    const {navigate} = this.props.navigation; // navigate =  this.props.navigation.navigate;

    if (this.state.isLoading) {
    // ActivityIndicator hướng dẫn ở https://facebook.github.io/react-native/docs/activityindicator.html
      return (
        <View style={styles.loading}>
          <ActivityIndicator size="large" style={styles.colorLoading} />
        </View>
      )
    } else {
    // ListView hướng dẫn ở https://facebook.github.io/react-native/docs/listview.html
      return (
        <ListView
          style={styles.container}
          dataSource={this.state.dataSource}
          renderRow={(rowData) =>
            <TouchableOpacity onPress={() => navigate('movies', {id: rowData.id})}>
              <Text style={styles.item}>{rowData.name}</Text>
            </TouchableOpacity>
          }
        />
      );
    }
  }
}

const styles = StyleSheet.create({
  container: {
    backgroundColor: '#fff',
  },
  item: {
    fontSize: 20,
    margin: 2,
    paddingBottom: 4,
    color: '#000000',
  },
  loading: {
    flex: 1,
    justifyContent: 'center',
    flexDirection: 'row',
  },
  colorLoading: {
    color: "#0000ff",
  },
});

export default Genders;

src/Screens/Movies.js

import React, { Component } from 'react';
import {
  StyleSheet,
  Text,
  View,
  TouchableOpacity,
  ListView,
  Image,
  ActivityIndicator,
  Dimensions,
} from 'react-native';
import {StackNavigator,} from 'react-navigation';

class Movies extends Component {
  static navigationOptions = {
    title: 'Movies',
  };

  constructor() {
    super();
    this.state = {
      genderId: ',
      page: ',
      total_pages: ',
      results: this.listData([{original_language: "en", id: "null"}]),
      isLoading: true,
    };
  }

  componentDidMount() {
    const {navigation} = this.props;
    const genderId = navigation.getParam('id', 'NO-ID');
    this.getMoviesFromApi(genderId);
  }

  listData(data) {
    ds = new ListView.DataSource({rowHasChanged: (r1, r2) => r1 !== r2});
    return ds.cloneWithRows(data);
  }

  getMoviesFromApi(id) {
    return fetch('https://api.themoviedb.org/3/genre/' + id + '/movies?api_key=xxxxxx')
      .then((response) => response.json())
      .then((responseJson) => {
        this.setState({
          genderId: responseJson.id,
          page: responseJson.page,
          total_pages: responseJson.total_pages,
          results: this.listData(responseJson.results),
          isLoading: false,
        });
      })
      .catch((error) => {
        console.error(error);
      });
  }

  render() {
    const {navigate} = this.props.navigation;

    if (this.state.isLoading) {
      return (
        <View style={styles.loading}>
          <ActivityIndicator size="large" style={styles.colorLoading} />
        </View>
      )
    } else {
      const awidth = (Dimensions.get('window').awidth / 3) - 4;
      return (
        <ListView
          contentContainerStyle={styles.list}
          dataSource={this.state.results}
          renderRow={(rowData) =>
            <TouchableOpacity onPress={() => navigate('detailMovie', {id: rowData.id})}>
              <Image style={{awidth: awidth, height: 200, margin: 2}}
                source={{uri: 'https://image.tmdb.org/t/p/w600_and_h900_bestv2' + rowData.backdrop_path}} />
            </TouchableOpacity>
          }
        />
      );
    }
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#F5FCFF',
  },
  list: {
    flexDirection: 'row',
    flexWrap: 'wrap',
  },
  loading: {
    flex: 1,
    justifyContent: 'center',
    flexDirection: 'row',
  },
  colorLoading: {
    color: "#0000ff",
  },
});

export default Movies;

src/Screens/DetailMovie.js

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

class DetailMovie extends Component {
  static navigationOptions = {
    title: 'Movie Detail',
  };

  constructor() {
    super();
    this.state = {
      id: ',
      adult: ',
      backdrop_path: ',
      popularity: ',
      budget: ',
      title: ',
      original_language: ',
      vote_average: ',
      vote_count: ',
      tagline: ',
      runtime: ',
      release_date: ',
      revenue: ',
      isLoading: true,
    };
  }

  componentDidMount() {
    const {navigation} = this.props;
    const id = navigation.getParam('id', 'NO-ID');
    this.getMovieFromApi(id);
  }

  getMovieFromApi(id) {
    return fetch('https://api.themoviedb.org/3/movie/' + id + '?api_key=xxxxx')
      .then((response) => response.json())
      .then((responseJson) => {
        this.setState({
          id: responseJson.id,
          adult: responseJson.adult,
          backdrop_path: responseJson.backdrop_path,
          popularity: responseJson.popularity,
          budget: responseJson.budget,
          title: responseJson.title,
          original_language: responseJson.original_language,
          vote_average: responseJson.vote_average,
          vote_count: responseJson.vote_count,
          tagline: responseJson.tagline,
          runtime: responseJson.runtime,
          release_date: responseJson.release_date,
          revenue: responseJson.revenue,
          isLoading: false,
        });
      })
      .catch((error) => {
        console.error(error);
      });
  }

  render() {
    if (this.state.isLoading) {
      return (
        <View style={styles.loading}>
          <ActivityIndicator size="large" style={styles.colorLoading} />
        </View>
      )
    } else {
      return (
        <View style={styles.container}>
          <View style={{flex: 1}}>
            <Image style={[styles.image, {awidth: Dimensions.get('window').awidth}]}
              source={{uri: 'https://image.tmdb.org/t/p/w600_and_h900_bestv2' + this.state.backdrop_path}} />
          </View>
          <View style={styles.content}>
            <Text>Title: {this.state.title}</Text>
            <Text>Language: {this.state.original_language}</Text>
            <Text>Time: {this.state.runtime} minutes</Text>
            <Text>Release date: {this.state.release_date}</Text>
            <Text>Vote: {this.state.vote_count}</Text>
            <Text>Average: {this.state.vote_average}</Text>
            <Text>Popularity: {this.state.popularity}</Text>
          </View>
        </View>
      );
    }
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: '#fff',
  },
  image: {
    flex: 1,
    height: 300,
  },
  content: {
    flex: 1,
    marginTop: 4,
    padding: 4,
  },
  loading: {
    flex: 1,
    justifyContent: 'center',
    flexDirection: 'row',
  },
  colorLoading: {
    color: "#0000ff",
  },
});

export default DetailMovie;