Flutter屏幕截图插件media_projection_screenshot的使用
Flutter屏幕截图插件media_projection_screenshot的使用
使用
media_projection_screenshot
插件是用于在Android上通过MediaProjection API进行屏幕截图的插件。以下是基本的使用方法:
import 'package:media_projection_screenshot/media_projection_screenshot.dart';
final _screenshotPlugin = MediaProjectionScreenshot();
final result = await _screenshotPlugin.takeCapture(x: 0, y: 0, width: 1080, height: 100);
完整示例Demo
以下是一个完整的示例Demo,展示了如何使用media_projection_screenshot
插件进行屏幕截图。
示例代码
import 'package:flutter/material.dart';
import 'package:media_projection_screenshot/captured_image.dart';
import 'package:media_projection_screenshot/media_projection_screenshot.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatefulWidget {
const MyApp({super.key});
[@override](/user/override)
State<MyApp> createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
final _screenshotPlugin = MediaProjectionScreenshot();
CapturedImage? image;
[@override](/user/override)
void initState() {
super.initState();
}
[@override](/user/override)
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('Plugin example app'),
),
body: Center(
child: Column(
children: [
// 请求权限按钮
MaterialButton(
child: const Text('请求权限'),
onPressed: () async {
_screenshotPlugin.requestPermission();
},
),
// 截图按钮
MaterialButton(
child: const Text('截图'),
onPressed: () async {
// 截取屏幕的一部分
CapturedImage? result = await _screenshotPlugin.takeCapture(x: 0, y: 100, width: 800, height: 600);
print(result.toString());
setState(() {
image = result;
});
},
),
// 开始持续截图按钮
MaterialButton(
child: const Text('开始持续截图'),
onPressed: () async {
// 开始持续截图并监听结果
final stream = await _screenshotPlugin.startCapture(x: 0, y: 100, width: 800, height: 600);
stream?.listen((result) {
setState(() {
image = CapturedImage.fromMap(Map<String, dynamic>.from(result));
print(image.toString());
});
});
},
),
// 停止持续截图按钮
MaterialButton(
child: const Text('停止持续截图'),
onPressed: () async {
await _screenshotPlugin.stopCapture();
},
),
// 显示截图结果
image != null
? Container(
padding: const EdgeInsets.all(6),
color: Colors.blueAccent,
height: 600,
child: Image.memory(
image!.bytes,
width: double.infinity,
fit: BoxFit.contain,
),
)
: Container(),
],
),
),
),
);
}
}
更多关于Flutter屏幕截图插件media_projection_screenshot的使用的实战教程也可以访问 https://www.itying.com/category-92-b0.html
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