Flutter PPTX处理插件flutter_pptx的使用

好的，以下是关于Flutter PPTX处理插件flutter_pptx的完整示例代码：

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

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

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

class MyHomePage extends StatefulWidget {
  [@override](/user/override)
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  final Powerpoint _pres = Powerpoint();

  void createPresentation() {
    // 创建标题幻灯片
    _pres.addTitleSlide(title: 'Title', author: 'Author');

    // 添加带照片的标题幻灯片
    _pres.addTitleAndPhotoSlide(
      title: 'Title',
      subtitle: 'Subtitle',
      author: 'Author',
      image: ImageReference(
        path: './samples/images/sample_gif.gif',
        name: 'Sample Gif',
      ),
    );

    // 添加带照片的替代标题幻灯片
    _pres.addTitleAndPhotoAltSlide(
      title: 'Title',
      subtitle: 'Subtitle',
      image: ImageReference(
        path: './samples/images/sample_jpg.jpg',
        name: 'Sample Jpg',
      ),
    );

    // 添加带子弹点的标题幻灯片
    _pres.addTitleAndBulletsSlide(
      title: 'Title',
      subtitle: 'Subtitle',
      bullets: [
        'Bullet 11',
        'Bullet 2',
        'Bullet 3',
        'Bullet 4',
      ].map((e) => e.toTextValue()).toList(),
    );

    // 添加纯文本的标题幻灯片
    _pres.addTitleOnlySlide(
      title: 'Title',
      subtitle: 'Subtitle',
    );

    // 添加议程幻灯片
    _pres.addAgendaSlide(
      title: 'Title',
      subtitle: 'Subtitle',
      topics: 'Topics',
    );

    // 添加陈述幻灯片
    _pres.addStatementSlide(
      statement: 'Statement',
    );

    // 添加大事实幻灯片
    _pres.addBigFactSlide(
      information: 'Information',
      fact: 'Fact',
    );

    // 添加引用幻灯片
    _pres.addQuoteSlide(
      quote: 'Quote',
      attribution: 'Attribution',
    );

    // 添加三张照片的幻灯片
    _pres.addPhoto3UpSlide(
      image1: ImageReference(
        path: './samples/images/sample_jpg.jpg',
        name: 'Sample Jpg',
      ),
      image2: ImageReference(
        path: './samples/images/sample_jpg.jpg',
        name: 'Sample Jpg',
      ),
      image3: ImageReference(
        path: './samples/images/sample_jpg.jpg',
        name: 'Sample Jpg',
      ),
    );

    // 添加一张照片的幻灯片
    _pres.addPhotoSlide(
      image: ImageReference(
        path: './samples/images/sample_jpg.jpg',
        name: 'Sample Jpg',
      ),
    );

    // 添加空白幻灯片
    _pres.addBlankSlide();

    // 添加带有自定义组件的幻灯片
    await _pres.addWidgetSlide((size) {
      return Center(
        child: Container(
          padding: const EdgeInsets.all(30.0),
          decoration: BoxDecoration(
            border: Border.all(color: Colors.blueAccent, width: 5.0),
            color: Colors.redAccent,
          ),
          child: const Text('This is a widget'),
        ),
      );
    });

    // 使用Markdown创建幻灯片
    await _pres.addSlidesFromMarkdown('MARKDOWN SOURCE');
  }

  void savePresentation() async {
    final bytes = await _pres.save();
    final file = File('my_presentation.pptx');
    await file.writeAsBytes(bytes);
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Flutter PPTX Example'),
      ),
      body: Column(
        children: [
          ElevatedButton(
            onPressed: createPresentation,
            child: Text('Create Presentation'),
          ),
          ElevatedButton(
            onPressed: savePresentation,
            child: Text('Save Presentation'),
          ),
        ],
      ),
    );
  }
}