Flutter SQLite数据库管理插件bible_sqlite的使用

Flutter SQLite数据库管理插件bible_sqlite的使用

插件简介

bible_sqlite 是一个优秀的Flutter插件,用于将圣经整合到您的应用程序中。它支持Android和iOS平台。

使用方法

  1. pubspec.yaml文件中添加依赖项:
dependencies:
  bible_sqlite: ^1.0.2
  1. 导入插件并创建实例:
import 'package:bible_sqlite/bible_sqlite.dart';

BibleSqlite _bibleSqlite = BibleSqlite();
  1. main.dart文件中构建应用界面:
void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Bíblia Sagrada Sqlite'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  [@override](/user/override)
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  BibleSqlite _bibleSqlite = BibleSqlite();

  [@override](/user/override)
  void initState() {
    super.initState();
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Container(
        child: FutureBuilder<List<BookModel>>(
          future: _bibleSqlite.getBook(),
          builder: (_, snapshot) {
            switch (snapshot.connectionState) {
              case ConnectionState.none:
                return Center(
                  child: Text('Carregando dados...'),
                );
              case ConnectionState.waiting:
                return Center(
                  child: Text('Carregando dados...'),
                );
              case ConnectionState.active:
                return Center(
                  child: Text('Carregando dados...'),
                );
              case ConnectionState.done:
                return ListView.builder(
                  itemCount: snapshot.data!.length,
                  itemBuilder: (_, index) {
                    return Text(snapshot.data![index].name);
                  },
                );
            }
          },
        ),
      ),
    );
  }
}

方法介绍

方法 描述 模型
getBooks() 返回所有书籍 BookModel
getVerse() 返回所有经文 VerseModel
getTestament() 返回所有福音书 TestamentModel
getMetadata() 返回圣经信息 MetadataModel

示例代码

import 'package:bible_sqlite/bible_sqlite.dart';
import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Bíblia Sagrada Sqlite'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  [@override](/user/override)
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  BibleSqlite _bibleSqlite = BibleSqlite();

  [@override](/user/override)
  void initState() {
    super.initState();
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Container(
        child: FutureBuilder<List<BookModel>>(
          future: _bibleSqlite.getBook(),
          builder: (_, snapshot) {
            switch (snapshot.connectionState) {
              case ConnectionState.none:
                return Center(
                  child: Text('Carregando dados...'),
                );
              case ConnectionState.waiting:
                return Center(
                  child: Text('Carregando dados...'),
                );
              case ConnectionState.active:
                return Center(
                  child: Text('Carregando dados...'),
                );
              case ConnectionState.done:
                return ListView.builder(
                  itemCount: snapshot.data!.length,
                  itemBuilder: (_, index) {
                    return Text(snapshot.data![index].name);
                  },
                );
            }
          },
        ),
      ),
    );
  }
}

更多关于Flutter SQLite数据库管理插件bible_sqlite的使用的实战教程也可以访问 https://www.itying.com/category-92-b0.html

1 回复

更多关于Flutter SQLite数据库管理插件bible_sqlite的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html


当然,下面是一个关于如何在Flutter项目中使用bible_sqlite插件来管理SQLite数据库的示例代码。这个插件允许你在Flutter应用中执行SQLite数据库操作,如创建表、插入数据、查询数据等。

首先,确保你已经在pubspec.yaml文件中添加了bible_sqlite依赖:

dependencies:
  flutter:
    sdk: flutter
  bible_sqlite: ^最新版本号  # 请替换为当前最新版本号

然后,运行flutter pub get来安装依赖。

接下来,是一个完整的示例,展示了如何使用bible_sqlite插件来管理SQLite数据库:

import 'package:flutter/material.dart';
import 'package:bible_sqlite/bible_sqlite.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Flutter SQLite Example'),
        ),
        body: SQLiteExample(),
      ),
    );
  }
}

class SQLiteExample extends StatefulWidget {
  @override
  _SQLiteExampleState createState() => _SQLiteExampleState();
}

class _SQLiteExampleState extends State<SQLiteExample> {
  BibleSQLite? _db;

  @override
  void initState() {
    super.initState();
    _initDatabase();
  }

  Future<void> _initDatabase() async {
    _db = BibleSQLite.getInstance();

    // 打开数据库连接(如果数据库不存在,则会创建一个新的)
    bool result = await _db!.openDatabase('example.db');
    if (result) {
      // 创建表
      await _createTable();
      // 插入数据
      await _insertData();
      // 查询数据
      await _queryData();
    } else {
      print('Failed to open database');
    }
  }

  Future<void> _createTable() async {
    String createTableQuery = '''
      CREATE TABLE IF NOT EXISTS users (
        id INTEGER PRIMARY KEY AUTOINCREMENT,
        name TEXT NOT NULL,
        email TEXT NOT NULL UNIQUE
      );
    ''';
    await _db!.executeQuery(createTableQuery);
  }

  Future<void> _insertData() async {
    String insertQuery = '''
      INSERT INTO users (name, email) VALUES (?, ?);
    ''';
    List<dynamic> values = ['Alice', 'alice@example.com'];
    await _db!.executeInsert(insertQuery, values);

    values = ['Bob', 'bob@example.com'];
    await _db!.executeInsert(insertQuery, values);
  }

  Future<void> _queryData() async {
    String selectQuery = 'SELECT * FROM users';
    List<Map<String, dynamic>> result = await _db!.executeQueryWithResult(selectQuery);
    
    result.forEach((row) {
      print('ID: ${row['id']}, Name: ${row['name']}, Email: ${row['email']}');
    });
  }

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Text('Check the console for database operations results.'),
    );
  }
}

在这个示例中,我们做了以下几件事:

  1. 初始化数据库连接。
  2. 创建一个名为users的表,包含idnameemail字段。
  3. 插入两条记录到users表中。
  4. 查询users表中的所有记录,并将结果打印到控制台。

请注意,这个示例假设bible_sqlite插件的API类似于其他SQLite插件,但由于bible_sqlite可能不是广泛认知的标准插件,实际使用时请参考其官方文档或源代码,以确保API调用的准确性。如果bible_sqlite的API有所不同,请根据其实际API进行调整。

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