Flutter计时拍照插件flutter_timer_camera的使用

Flutter计时拍照插件flutter_timer_camera

一个允许你在Flutter应用中打开相机并带计时逻辑拍照的插件。

我们只支持这些版本，因为此插件采用了camera插件。

特性

• 直接从Flutter应用中打开自定义相机。
• 设置延时拍照。
• 切换前后摄像头。

安装

在你的pubspec.yaml文件中添加flutter_timer_camera作为依赖项。

dependencies:
  flutter_timer_camera: ^1.0.3

iOS

在ios/Runner/Info.plist中添加相机使用描述。

<key>NSCameraUsageDescription</key>
<string>描述为什么你使用相机访问</string>

Android

将最小SDK版本改为至少21。

minSdkVersion 21

使用

import 'package:flutter_timer_camera/flutter_timer_camera.dart';

.
.
.

ElevatedButton(
  onPressed: () {
    showTimerCamera(
      context: context,
      onSubmit: (Xfile? capturedImage) {
        setState(() {
          currentImage = capturedImage;
        });
      },
    );
  },
  child: const Text('打开相机'),
),

showTimerCamera参数

示例代码

import 'dart:io';

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

void main() {
  WidgetsFlutterBinding.ensureInitialized();

  runApp(const App());
}

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

  [@override](/user/override)
  Widget build(BuildContext context) {
    return const MaterialApp(
      debugShowCheckedModeBanner: false,
      home: _Home(),
    );
  }
}

class _Home extends StatefulWidget {
  const _Home({Key? key}) : super(key: key);

  [@override](/user/override)
  State<_Home> createState() => _HomeState();
}

class _HomeState extends State<_Home> {
  XFile? currentImage;

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('定时相机'),
        centerTitle: true,
      ),
      body: Center(
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            ElevatedButton(
              onPressed: () {
                showTimerCamera(
                  context: context,
                  onSubmit: (XFile? capturedImage) {
                    setState(() {
                      currentImage = capturedImage;
                    });
                  },
                );
              },
              child: const Text('打开相机 1'),
            ),
            ElevatedButton(
              onPressed: () {
                showTimerCamera(
                  context: context,
                  defaultTimerOptionIndex: 1,
                  timerOptions: [
                    TimerOption(label: '零秒', startCounter: 0),
                    TimerOption(label: '5秒', startCounter: 5),
                    TimerOption(label: '8秒', startCounter: 8),
                  ],
                  onSubmit: (capturedImage) {
                    setState(() {
                      currentImage = capturedImage;
                    });
                  },
                );
              },
              child: const Text('打开相机 2'),
            ),
            currentImage == null
                ? const SizedBox.shrink()
                : SizedBox(
                    width: 300,
                    height: 300,
                    child: Image.file(File(currentImage!.path)),
                  ),
          ],
        ),
      ),
    );
  }
}