Flutter屏幕录制功能插件flutter_screen_recording的使用
Flutter屏幕录制功能插件 flutter_screen_recording
的使用
flutter_screen_recording
是一个用于在Android和iOS设备上进行屏幕录制的Flutter插件。该插件要求Android SDK 21+和iOS 10+。
开始使用
安装插件
首先,在您的pubspec.yaml
文件中添加依赖:
dependencies:
flutter_screen_recording: ^latest_version
然后运行flutter pub get
来安装插件。
录制屏幕
开始录制
您可以选择是否同时录制音频:
-
只录制屏幕:
bool started = await FlutterScreenRecording.startRecordScreen('videoName');
-
同时录制屏幕和音频:
bool started = await FlutterScreenRecording.startRecordScreenAndAudio('videoName');
停止录制
当您需要停止录制并获取视频路径时,可以使用以下代码:
String path = await FlutterScreenRecording.stopRecordScreen;
示例Demo
下面是一个完整的示例demo,演示了如何使用flutter_screen_recording
插件开始和停止屏幕录制:
import 'package:flutter/material.dart';
import 'package:flutter_screen_recording/flutter_screen_recording.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Screen Recording Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(title: 'Flutter Screen Recording Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
bool isRecording = false;
void _startRecording() async {
bool started = await FlutterScreenRecording.startRecordScreenAndAudio('my_video');
if (started) {
setState(() {
isRecording = true;
});
}
}
void _stopRecording() async {
String path = await FlutterScreenRecording.stopRecordScreen;
if (path != null) {
setState(() {
isRecording = false;
});
print('Video saved at: $path');
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(
isRecording ? '正在录制...' : '未在录制',
),
SizedBox(height: 20),
ElevatedButton(
onPressed: isRecording ? _stopRecording : _startRecording,
child: Text(isRecording ? '停止录制' : '开始录制'),
),
],
),
),
);
}
}
平台特定配置
Android
由于flutter_screen_recording
不会自动请求必要的权限,您需要手动处理权限问题。推荐使用permission_handler插件来管理权限。
在您的AndroidManifest.xml
中添加以下权限:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_INTERNAL_STORAGE" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
并在<application>
标签内添加服务声明:
<service
android:name="com.foregroundservice.ForegroundService"
android:foregroundServiceType="mediaProjection">
</service>
iOS
在iOS平台上,您只需在Info.plist
中添加相应的权限描述:
<key>NSPhotoLibraryUsageDescription</key>
<string>Save video in gallery</string>
<key>NSMicrophoneUsageDescription</key>
<string>Save audio in video</string>
更多关于Flutter屏幕录制功能插件flutter_screen_recording的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html
更多关于Flutter屏幕录制功能插件flutter_screen_recording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使用 flutter_screen_recording
插件来实现 Flutter 屏幕录制功能的代码案例。
首先,确保你已经在 pubspec.yaml
文件中添加了 flutter_screen_recording
依赖:
dependencies:
flutter:
sdk: flutter
flutter_screen_recording: ^x.y.z # 请替换为最新版本号
然后运行 flutter pub get
来获取依赖。
接下来,是一个简单的 Flutter 应用示例,展示了如何使用 flutter_screen_recording
插件进行屏幕录制:
import 'package:flutter/material.dart';
import 'package:flutter_screen_recording/flutter_screen_recording.dart';
import 'dart:io';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Screen Recording Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: ScreenRecordingDemo(),
);
}
}
class ScreenRecordingDemo extends StatefulWidget {
@override
_ScreenRecordingDemoState createState() => _ScreenRecordingDemoState();
}
class _ScreenRecordingDemoState extends State<ScreenRecordingDemo> {
late FlutterScreenRecorder _flutterScreenRecorder;
bool _isRecording = false;
@override
void initState() {
super.initState();
_flutterScreenRecorder = FlutterScreenRecorder();
}
void _startRecording() async {
setState(() {
_isRecording = true;
});
try {
final String videoPath = await _flutterScreenRecorder.startRecording(
outputFilePath: '/storage/emulated/0/DCIM/Camera/recorded_video.mp4', // 指定保存路径
videoBitRate: 5000000, // 视频比特率
frameRate: 30, // 帧率
);
print("Recording started. Video will be saved at: $videoPath");
} catch (e) {
print("Error starting recording: $e");
setState(() {
_isRecording = false;
});
}
}
void _stopRecording() async {
setState(() {
_isRecording = false;
});
try {
await _flutterScreenRecorder.stopRecording();
print("Recording stopped.");
} catch (e) {
print("Error stopping recording: $e");
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('Flutter Screen Recording Demo'),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(
'Press the buttons to start and stop recording.',
),
SizedBox(height: 20),
ElevatedButton(
onPressed: _isRecording ? null : _startRecording,
child: Text('Start Recording'),
),
SizedBox(height: 10),
ElevatedButton(
onPressed: _isRecording ? _stopRecording : null,
child: Text('Stop Recording'),
),
],
),
),
);
}
}
注意事项
-
权限处理:在 Android 上,你需要在
AndroidManifest.xml
文件中请求存储权限。此外,在运行时请求权限也是一个好做法。<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
并在代码中请求权限(例如使用
permission_handler
插件)。 -
路径问题:在示例中,输出文件路径是硬编码的。在实际应用中,你可能需要使用更动态的方式来确定路径,并确保路径是有效的和可写的。
-
错误处理:示例中的错误处理是基本的。在实际应用中,你可能需要更健壮的错误处理逻辑。
-
插件版本:确保你使用的是最新版本的
flutter_screen_recording
插件,因为插件的 API 可能会随着版本更新而变化。
这个示例提供了一个基本的框架,你可以根据需要进行扩展和修改。