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DAY 8
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Mobile Development

從零開始學React Native系列 第 8 篇

【從零開始學React Native】7. 創建Todo Tracker——創建其他頁面

16th鐵人賽
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今天我們來創建其他的頁面。任務新增頁、圖表頁、設定頁、任務詳情頁。這裡會使用一些套件來進行修改調整。

創建頁面

安裝'react-native-safe-area-context、@wuba/react-native-echarts echarts @shopify/react-native-skia react-native-svg

修改一下我們目前的App.tsx:

import React, { useState } from 'react';
import { View, Text, TouchableOpacity, StyleSheet, StatusBar, useColorScheme } from 'react-native';
import { SafeAreaProvider, SafeAreaView } from 'react-native-safe-area-context';
import { Colors } from 'react-native/Libraries/NewAppScreen';
import HomePage from './src/pages/home.page';

function MainContent() {
  const isDarkMode = useColorScheme() === 'dark';
  const [currentPage, setCurrentPage] = useState('home');

  const backgroundStyle = {
    backgroundColor: isDarkMode ? Colors.darker : Colors.lighter,
    flex: 1,
  };

  const renderPage = () => {
    switch (currentPage) {
      case 'home':
        return <HomePage isDarkMode={isDarkMode} />;
      case 'add':
        return <Text>新增任務頁面</Text>;
      case 'stats':
        return <Text>統計頁面</Text>;
      case 'settings':
        return <Text>設置頁面</Text>;
      default:
        return <HomePage isDarkMode={isDarkMode} />;
    }
  };

  return (
    <SafeAreaView style={backgroundStyle}>
      <StatusBar
        barStyle={isDarkMode ? 'light-content' : 'dark-content'}
        backgroundColor={backgroundStyle.backgroundColor}
      />
      <View style={styles.topArea}>
        <Text style={styles.topText}>我的應用</Text>
      </View>
      <View style={styles.container}>
        {renderPage()}
      </View>
      <View style={styles.bottomNav}>
        <TouchableOpacity style={styles.navItem} onPress={() => setCurrentPage('home')}>
          <Text style={styles.navText}>主頁</Text>
        </TouchableOpacity>
        <TouchableOpacity style={styles.navItem} onPress={() => setCurrentPage('add')}>
          <Text style={styles.navText}>新增</Text>
        </TouchableOpacity>
        <TouchableOpacity style={styles.navItem} onPress={() => setCurrentPage('stats')}>
          <Text style={styles.navText}>統計</Text>
        </TouchableOpacity>
        <TouchableOpacity style={styles.navItem} onPress={() => setCurrentPage('settings')}>
          <Text style={styles.navText}>設置</Text>
        </TouchableOpacity>
      </View>
    </SafeAreaView>
  );
}

function App(): React.JSX.Element {
  return (
    <SafeAreaProvider>
      <MainContent />
    </SafeAreaProvider>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
  },
  topArea: {
    height: 50,
    justifyContent: 'center',
    alignItems: 'center',
    borderBottomWidth: 1,
    borderBottomColor: '#ccc',
    backgroundColor: '#f8f8f8',
  },
  topText: {
    fontSize: 18,
    fontWeight: 'bold',
  },
  bottomNav: {
    flexDirection: 'row',
    justifyContent: 'space-around',
    alignItems: 'center',
    height: 50,
    borderTopWidth: 1,
    borderTopColor: '#ccc',
    backgroundColor: '#f8f8f8',
  },
  navItem: {
    flex: 1,
    alignItems: 'center',
    justifyContent: 'center',
    height: '100%',
  },
  navText: {
    fontSize: 12,
  },
});

export default App;

src\pages\home.page.tsx:

import React, { PropsWithChildren } from 'react';
import { View, Text, TextInput, FlatList, StyleSheet } from 'react-native';
import { Colors } from 'react-native/Libraries/NewAppScreen';


const styles = StyleSheet.create({
  container: {
    flex: 1,
    padding: 10,
  },
  title: {
    fontSize: 18,
    fontWeight: 'bold',
    marginBottom: 10,
  },
  searchBar: {
    height: 40,
    borderColor: 'gray',
    borderWidth: 1,
    borderRadius: 5,
    paddingHorizontal: 10,
    marginBottom: 10,
  },
  taskList: {
    flex: 1,
  },
  taskItem: {
    padding: 10,
    borderBottomWidth: 1,
    borderBottomColor: '#ccc',
  },
});

type Task = {
  id: string;
  title: string;
}

type HomePageProps = PropsWithChildren<{
  isDarkMode?: boolean;
}>;

const HomePage = ({children, isDarkMode = false}: HomePageProps) => {
  const tasks: Task[] = [
    { id: '1', title: 'Task 1' },
    { id: '2', title: 'Task 2' },
    { id: '3', title: 'Task 3' },
  ];

  const renderTask = ({ item }: { item: Task }) => (
    <View style={styles.taskItem}>
      <Text>{item.title}</Text>
    </View>
  );

  return (
    <View style={styles.container}>
      <Text style={styles.title}>主畫面 (任務列表)</Text>
      <TextInput
        style={styles.searchBar}
        placeholder="搜索欄"
        placeholderTextColor={isDarkMode ? Colors.light : Colors.dark}
      />
      <FlatList
        style={styles.taskList}
        data={tasks}
        renderItem={renderTask}
        keyExtractor={item => item.id}
      />
    </View>
  );
};

export default HomePage;

src\pages\add-task.page.tsx:

import React, { useState } from 'react';
import { Text, TextInput, TouchableOpacity, StyleSheet, ScrollView } from 'react-native';

type AddTaskPageProps = {
  isDarkMode: boolean;
};

const AddTaskPage: React.FC<AddTaskPageProps> = ({ isDarkMode }) => {
  const [title, setTitle] = useState('');
  const [description, setDescription] = useState('');
  const [dueDate, setDueDate] = useState(new Date());
  const [priority, setPriority] = useState('');
  const [reminder, setReminder] = useState('');
  const [tags, setTags] = useState('');

  const handleSubmit = () => {
    // Handle task submission logic here
    console.log({ title, description, dueDate, priority, reminder, tags });
  };

  return (
    <ScrollView style={styles.container}>
      <Text style={styles.title}>新增任務畫面</Text>

      <TextInput
        style={styles.input}
        placeholder="任務標題"
        value={title}
        onChangeText={setTitle}
      />

      <TextInput
        style={[styles.input, styles.multilineInput]}
        placeholder="任務描述"
        multiline
        numberOfLines={3}
        value={description}
        onChangeText={setDescription}
      />
      <Text style={styles.label}>到期日期</Text>

      <TextInput
        style={styles.input}
        placeholder="優先級"
        value={priority}
        onChangeText={setPriority}
      />

      <TextInput
        style={styles.input}
        placeholder="提醒設置"
        value={reminder}
        onChangeText={setReminder}
      />

      <TextInput
        style={styles.input}
        placeholder="標籤"
        value={tags}
        onChangeText={setTags}
      />

      <TouchableOpacity style={styles.submitButton} onPress={handleSubmit}>
        <Text style={styles.submitButtonText}>新增任務</Text>
      </TouchableOpacity>
    </ScrollView>
  );
};

const styles = StyleSheet.create({
  container: {
    flex: 1,
    padding: 10,
  },
  title: {
    fontSize: 18,
    fontWeight: 'bold',
    marginBottom: 10,
  },
  input: {
    height: 40,
    borderColor: 'gray',
    borderWidth: 1,
    borderRadius: 5,
    paddingHorizontal: 10,
    marginBottom: 10,
  },
  multilineInput: {
    height: 80,
  },
  label: {
    fontSize: 16,
    marginBottom: 5,
  },
  submitButton: {
    backgroundColor: '#007AFF',
    padding: 10,
    borderRadius: 5,
    alignItems: 'center',
    marginTop: 10,
  },
  submitButtonText: {
    color: 'white',
    fontSize: 16,
    fontWeight: 'bold',
  },
});

export default AddTaskPage;

src\pages\task-detail.page.tsx:

import React, { useState } from 'react';
import { View, Text, StyleSheet, TouchableOpacity, Switch } from 'react-native';

type TaskDetailsPageProps = {
  isDarkMode: boolean;
  task: {
    id: string;
    title: string;
    description: string;
    dueDate: Date;
    priority: string;
    isCompleted: boolean;
  };
};

const TaskDetailsPage: React.FC<TaskDetailsPageProps> = ({ isDarkMode, task }) => {
  const [isCompleted, setIsCompleted] = useState(task.isCompleted);

  const handleEdit = () => {
    // Handle edit logic
    console.log('Edit task:', task.id);
  };

  const handleDelete = () => {
    // Handle delete logic
    console.log('Delete task:', task.id);
  };

  const toggleCompletion = () => {
    setIsCompleted(!isCompleted);
    // Update task completion status in the backend
    console.log('Task completion toggled:', task.id, !isCompleted);
  };

  return (
    <View style={styles.container}>
      <Text style={styles.title}>{task.title}</Text>
      <Text style={styles.description}>{task.description}</Text>
      <Text style={styles.info}>到期日期: {task.dueDate.toLocaleDateString()}</Text>
      <Text style={styles.info}>優先級: {task.priority}</Text>

      <View style={styles.actionContainer}>
        <TouchableOpacity style={styles.actionButton} onPress={handleEdit}>
          <Text style={styles.actionButtonText}>編輯</Text>
        </TouchableOpacity>
        <TouchableOpacity style={[styles.actionButton, styles.deleteButton]} onPress={handleDelete}>
          <Text style={styles.actionButtonText}>刪除</Text>
        </TouchableOpacity>
      </View>
      
      <View style={styles.completionContainer}>
        <Text style={styles.completionText}>任務完成</Text>
        <Switch
          value={isCompleted}
          onValueChange={toggleCompletion}
        />
      </View>
    </View>
  );
};

const styles = StyleSheet.create({
  container: {
    flex: 1,
    padding: 10,
  },
  title: {
    fontSize: 20,
    fontWeight: 'bold',
    marginBottom: 10,
  },
  description: {
    fontSize: 16,
    marginBottom: 10,
  },
  info: {
    fontSize: 14,
    marginBottom: 5,
  },
  actionContainer: {
    flexDirection: 'row',
    justifyContent: 'space-between',
    marginTop: 20,
  },
  actionButton: {
    backgroundColor: '#007AFF',
    padding: 10,
    borderRadius: 5,
    flex: 1,
    marginRight: 10,
  },
  deleteButton: {
    backgroundColor: '#FF3B30',
    marginRight: 0,
  },
  actionButtonText: {
    color: 'white',
    textAlign: 'center',
    fontWeight: 'bold',
  },
  completionContainer: {
    flexDirection: 'row',
    alignItems: 'center',
    justifyContent: 'space-between',
    marginTop: 20,
  },
  completionText: {
    fontSize: 16,
  },
});

export default TaskDetailsPage;

src\pages\statistics-page.tsx:

import React, { useRef, useEffect } from 'react';
import { View, Text, StyleSheet } from 'react-native';
import * as echarts from 'echarts/core';
import { SkiaChart, SVGRenderer } from '@wuba/react-native-echarts';
import { LineChart } from 'echarts/charts';
import { GridComponent } from 'echarts/components';

echarts.use([SVGRenderer, LineChart, GridComponent]);

type StatisticsPageProps = {
  isDarkMode: boolean;
};

const StatisticsPage: React.FC<StatisticsPageProps> = ({ isDarkMode }) => {
  const skiaRef = useRef<any>(null);

  useEffect(() => {
    const option = {
      xAxis: {
        type: 'category',
        data: ['一月', '二月', '三月', '四月', '五月', '六月'],
      },
      yAxis: {
        type: 'value',
        min: 0,
        max: 100,
      },
      series: [
        {
          name: '完成率',
          data: [60, 70, 65, 80, 75, 90],
          type: 'line',
          smooth: true,
        },
      ],
      tooltip: {
        trigger: 'axis',
      },
      legend: {
        data: ['完成率'],
      },
    };

    let chart: any;
    if (skiaRef.current) {
      chart = echarts.init(skiaRef.current, isDarkMode ? 'dark' : 'light', {
        renderer: 'svg',
        width: 350,
        height: 300,
      });
      chart.setOption(option);
    }

    return () => chart?.dispose();
  }, [isDarkMode]);

  return (
    <View style={styles.container}>
      <Text style={styles.title}>統計畫面</Text>

      <View style={styles.chartContainer}>
        <Text style={styles.chartTitle}>任務完成率趨勢</Text>
        <SkiaChart ref={skiaRef} />
      </View>

    </View>
  );
};

const styles = StyleSheet.create({
  container: {
    flex: 1,
    padding: 10,
  },
  title: {
    fontSize: 18,
    fontWeight: 'bold',
    marginBottom: 10,
  },
  chartContainer: {
    marginBottom: 20,
  },
  chartTitle: {
    fontSize: 16,
    fontWeight: 'bold',
    marginBottom: 5,
  },
});

export default StatisticsPage;

src\pages\settings.page.tsx:

import React, { useState } from 'react';
import { View, Text, StyleSheet, Switch, TouchableOpacity, ScrollView } from 'react-native';

type SettingsPageProps = {
  isDarkMode: boolean;
  toggleDarkMode: () => void;
};

const SettingsPage: React.FC<SettingsPageProps> = ({ isDarkMode, toggleDarkMode }) => {
  const [notifications, setNotifications] = useState(true);
  const [autoSync, setAutoSync] = useState(true);

  const handleLogout = () => {
    // Handle logout logic
    console.log('User logged out');
  };

  return (
    <ScrollView style={styles.container}>
      <Text style={styles.title}>用戶設置畫面</Text>
      
      <View style={styles.section}>
        <Text style={styles.sectionTitle}>用戶信息</Text>
        <View style={styles.settingItem}>
          <Text style={styles.settingLabel}>用戶名稱</Text>
          <Text style={styles.settingValue}>John Doe</Text>
        </View>
        <View style={styles.settingItem}>
          <Text style={styles.settingLabel}>電子郵件</Text>
          <Text style={styles.settingValue}>johndoe@example.com</Text>
        </View>
      </View>
      
      <View style={styles.section}>
        <Text style={styles.sectionTitle}>應用設置</Text>
        <View style={styles.settingItem}>
          <Text style={styles.settingLabel}>深色模式</Text>
          <Switch value={isDarkMode} onValueChange={toggleDarkMode} />
        </View>
        <View style={styles.settingItem}>
          <Text style={styles.settingLabel}>通知</Text>
          <Switch value={notifications} onValueChange={setNotifications} />
        </View>
      </View>
      
      <View style={styles.section}>
        <Text style={styles.sectionTitle}>同步設置</Text>
        <View style={styles.settingItem}>
          <Text style={styles.settingLabel}>自動同步</Text>
          <Switch value={autoSync} onValueChange={setAutoSync} />
        </View>
      </View>
      
      <TouchableOpacity style={styles.logoutButton} onPress={handleLogout}>
        <Text style={styles.logoutButtonText}>登出</Text>
      </TouchableOpacity>
      
      <View style={styles.aboutSection}>
        <Text style={styles.sectionTitle}>關於應用</Text>
        <Text style={styles.aboutText}>版本: 1.0.0</Text>
        <Text style={styles.aboutText}>開發者: Your Company Name</Text>
      </View>
    </ScrollView>
  );
};

const styles = StyleSheet.create({
  container: {
    flex: 1,
    padding: 10,
  },
  title: {
    fontSize: 18,
    fontWeight: 'bold',
    marginBottom: 20,
  },
  section: {
    marginBottom: 20,
  },
  sectionTitle: {
    fontSize: 16,
    fontWeight: 'bold',
    marginBottom: 10,
  },
  settingItem: {
    flexDirection: 'row',
    justifyContent: 'space-between',
    alignItems: 'center',
    paddingVertical: 10,
    borderBottomWidth: 1,
    borderBottomColor: '#ccc',
  },
  settingLabel: {
    fontSize: 14,
  },
  settingValue: {
    fontSize: 14,
    color: '#666',
  },
  logoutButton: {
    backgroundColor: '#FF3B30',
    padding: 10,
    borderRadius: 5,
    alignItems: 'center',
    marginTop: 20,
  },
  logoutButtonText: {
    color: 'white',
    fontSize: 16,
    fontWeight: 'bold',
  },
  aboutSection: {
    marginTop: 20,
  },
  aboutText: {
    fontSize: 14,
    color: '#666',
    marginBottom: 5,
  },
});

export default SettingsPage;

這是目前暫時設計的pages，之後會一個一個修改並調整。

https://ithelp.ithome.com.tw/upload/images/20240922/20108931Y4f9VZrZdu.png

https://ithelp.ithome.com.tw/upload/images/20240922/2010893111mD0txY5j.png

https://ithelp.ithome.com.tw/upload/images/20240922/20108931HH7YadXa6t.png

https://ithelp.ithome.com.tw/upload/images/20240922/20108931mE8YougqNL.png

心得

發現使用一些套件安裝後，總會出現一些問題。目前的作法是將模擬器的app關掉，然後整個重啟重新跑指令這樣，忽然就好了。


上一篇
【從零開始學React Native】6. 創建Todo Tracker——創建頁面
下一篇
【從零開始學React Native】8. 創建Todo Tracker——改進首頁頁面
系列文
從零開始學React Native 共 20 篇
  1. 16
    -【從零開始學React Native】15. 創建Todo Tracker——調整並新增路由
  2. 17
    【從零開始學React Native】16. 什麼是BAAS
  3. 18
    【從零開始學React Native】17. 創建Todo Tracker——建構並架設parse server
  4. 19
    【從零開始學React Native】18. 創建Todo Tracker——app設置並連接到parse server (上)
  5. 20
    【從零開始學React Native】19. 創建Todo Tracker——app設置並連接到parse server (中)
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