Flutter视频播放插件flutter_alpha_player的使用

来自 https://github.com/bytedance/AlphaPlayer 的flutter版本实现。

开始使用

本项目是一个用于Flutter的插件包，它包含了针对Android和/或iOS平台的特定实现代码。

为了帮助你开始使用Flutter，你可以查看我们的 在线文档，其中提供了教程、示例、移动开发指南以及完整的API参考。

以下是一个使用flutter_alpha_player插件的完整示例代码：

import 'package:flutter/material.dart';
import 'package:flutter_alpha_player/alpha_video_gift_view.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

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

  final String title;

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

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            const Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.headline4,
            ),
            if (_counter % 2 == 0)
              animationWidget(),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ),
    );
  }

  Widget animationWidget() {
    // 填写本地缓存路径即可
    Widget alphaWidget = AlphaVideoGiftView(
      width: 300,
      height: 500,
      // repeat: true,
      // Android: 将文件拷贝到该目录下
      url: '/storage/sdcard0/Android/data/com.example.example/files/ReMainScene 1-4new.mp4',
      finishCallBack: () {
        // 完成的回调
        print('finishCallBack');
      },
    );

    // 延迟出来的时间，避免首帧黑屏的闪烁
    // 我想是flutter的原因，Android原生没有问题
    Widget animation = TweenAnimationBuilder<double>(
      tween: Tween<double>(begin: 0.0, end: 1.0),
      duration: const Duration(milliseconds: 1000),
      builder: (BuildContext context, double value, Widget? child) {
        if (value < 1.0) {
          return Opacity(opacity: 0.0, child: child);
        }
        return child!;
      },
      child: alphaWidget,
    );
    return alphaWidget;
  }
}