Flutter视频播放与AppBar集成插件video_appbar的使用

Flutter视频播放与AppBar集成插件video_appbar的使用

一个允许在AppBar中播放视频，并且可以自定义每个组件的Flutter插件。

Demo

移动端 - Android

移动端 - Android (带有前置图标)

平板 - Android

安装

首先，在pubspec.yaml文件中添加video_appbar作为依赖项：

dependencies:
  video_appbar: ^0.0.1+2

依赖项

该插件使用video_player插件。如果你需要了解兼容的格式或其他详细信息，可以访问官方文档。以下是使用基于网络的视频所需的配置：

iOS

如果需要使用http（而不是https）URL访问视频，你需要在应用的Info.plist文件中添加适当的NSAppTransportSecurity权限。该文件位于<项目根目录>/ios/Runner/Info.plist。参见 Apple文档 以确定适合你的用例和受支持的iOS版本的正确组合条目。

Android

如果使用基于网络的视频，请确保在AndroidManifest.xml文件中包含以下权限。该文件位于<项目根目录>/android/app/src/main/AndroidManifest.xml：

<uses-permission android:name="android.permission.INTERNET"/>

macOS

如果使用基于网络的视频，你需要添加 com.apple.security.network.client 权限。具体操作可以参考 官方文档

示例

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

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

class MainApp extends StatelessWidget {
  const MainApp({super.key});

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: SafeArea(
        child: Scaffold(
          appBar: VideoAppBar(
            source: VideoAppBarSource.network(
              url: 'https://github.com/jorgemvv01/flutter_video_appbar/raw/main/example/res/video/video_01.mp4'
            ),
            height: 54,
            body: const Center(
              child: Text(
                'Video appbar body',
                style: TextStyle(
                  fontSize: 18,
                  color: Colors.white
                ),
              )
            ),
          ),
        )
      ),
    );
  }
}

Acknowledgements

展示包功能的图像和视频来自官方 Valorant 页面。

示例代码

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

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

class MainApp extends StatelessWidget {
  const MainApp({super.key});

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      routes: {
        'home': (context) => const HomeScreen(),
        'second': (context) => const SecondScreen()
      },
      initialRoute: 'home',
    );
  }
}

class HomeScreen extends StatelessWidget {
  const HomeScreen({super.key});

  static const characters = [
    'brimstone',
    'phoenix',
    'sage',
    'sova',
    'vyper',
    'cypher'
  ];
  static const mainColor = Color(0xFFff4655);

  [@override](/user/override)
  Widget build(BuildContext context) {
    final size = MediaQuery.of(context).size;
    return SafeArea(
      child: Scaffold(
        backgroundColor: Colors.black87,
        appBar: VideoAppBar(
          source: VideoAppBarSource.asset(dataSource: 'res/video/video_01.mp4'),
          height: 260,
          actions: [
            IconButton(
                onPressed: null,
                icon: Container(
                  padding: const EdgeInsets.all(6),
                  decoration: BoxDecoration(
                      color: mainColor,
                      borderRadius: BorderRadius.circular(25)),
                  child: const Icon(
                    Icons.person,
                    size: 22,
                    color: Colors.white,
                  ),
                ))
          ],
          gradient: LinearGradient(
              begin: Alignment.topCenter,
              end: Alignment.bottomCenter,
              colors: [Colors.black.withOpacity(0.25), Colors.black]),
          body: Center(
            child: Text(
              'VideoAppBar body',
              style: TextStyle(
                  fontSize: 26,
                  color: mainColor.withOpacity(0.6),
                  fontWeight: FontWeight.bold),
            ),
          ),
        ),
        body: Padding(
          padding: const EdgeInsets.all(8.0),
          child: Column(
            children: [
              Expanded(
                  child: GridView.builder(
                gridDelegate: SliverGridDelegateWithMaxCrossAxisExtent(
                    maxCrossAxisExtent: size.height * 0.3,
                    mainAxisExtent: size.height * 0.38,
                    mainAxisSpacing: 10,
                    crossAxisSpacing: 10),
                itemCount: characters.length,
                itemBuilder: (_, index) {
                  return CharacterItem(character: characters[index]);
                },
              )),
            ],
          ),
        ),
      ),
    );
  }
}

class SecondScreen extends StatelessWidget {
  const SecondScreen({super.key});

  static const characters = [
    'brimstone',
    'phoenix',
    'sage',
    'sova',
    'vyper',
    'cypher'
  ];
  static const mainColor = Color(0xFFff4655);

  [@override](/user/override)
  Widget build(BuildContext context) {
    return SafeArea(
      child: Scaffold(
        backgroundColor: Colors.black87,
        appBar: VideoAppBar(
          source: VideoAppBarSource.asset(dataSource: 'res/video/video_02.mp4'),
          height: 54,
        ),
        body: Center(
            child: TextButton(
                onPressed: () => Navigator.pop(context),
                child: const Text(
                  'Go to home',
                  style: TextStyle(fontSize: 16),
                ))),
      ),
    );
  }
}

class CharacterItem extends StatelessWidget {
  const CharacterItem({
    super.key,
    required this.character,
  });

  final String character;

  [@override](/user/override)
  Widget build(BuildContext context) {
    return InkWell(
      onTap: () {
        Navigator.pushNamed(context, 'second');
      },
      child: Column(
        children: [
          Expanded(
            child: Image.asset(
              'res/img/$character.webp',
              fit: BoxFit.cover,
            ),
          ),
          Row(
            children: [
              Expanded(
                child: Container(
                  color: Colors.grey[200],
                  child: Text(
                    character.toUpperCase(),
                    style: const TextStyle(
                        fontSize: 16, fontWeight: FontWeight.bold),
                    textAlign: TextAlign.center,
                  ),
                ),
              ),
            ],
          )
        ],
      ),
    );
  }
}