Question

这是打开相机的按钮的代码所以我想在拍照时将其保存在图库中我使用camera_camera包 https://pub.dev/packages/camera_camera

Answer 1

您可以在下面复制粘贴运行完整代码
步骤1：将<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>添加到AndroidManifest.xml
步骤2：使用软件包https://pub.dev/packages/gallery_saver
步骤3：在onFile中使用GallerySaver.saveImage和Navigator.pop(context,file)
代码段

Camera(
    onFile: (file) async {
      print("saver start");
      bool success = await GallerySaver.saveImage(file.path);
      print("saver end $success");
      Navigator.pop(context,file);
    },

工作演示

完整代码

import 'dart:developer';
import 'dart:io';

import 'package:flutter/material.dart';
import 'package:camera_camera/camera_camera.dart';
import 'package:gallery_saver/gallery_saver.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: HomeScreen(),
    );
  }
}

class HomeScreen extends StatefulWidget {
  @override
  _HomeScreenState createState() => _HomeScreenState();
}

class _HomeScreenState extends State<HomeScreen> {
  File val;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(title: Text("")),
        floatingActionButton: FloatingActionButton(
            child: Icon(Icons.camera_alt),
            onPressed: () async {
              val = await showDialog(
                  context: context,
                  builder: (context) => Camera(
                        onFile: (file) async {
                          print("saver start");
                          bool success = await GallerySaver.saveImage(file.path);
                          print("saver end $success");
                          Navigator.pop(context,file);
                        },
                        mode: CameraMode.fullscreen,
                        //initialCamera: CameraSide.front,
                        //enableCameraChange: false,
                        //  orientationEnablePhoto: CameraOrientation.landscape,
                        onChangeCamera: (direction, _) {
                          print('--------------');
                          print('$direction');
                          print('--------------');
                        },

                        // imageMask: CameraFocus.square(
                        //   color: Colors.black.withOpacity(0.5),
                        // ),
                      ));
              setState(() {});
            }),
        body: Center(
            child: Container(
                height: MediaQuery.of(context).size.height * 0.7,
                width: MediaQuery.of(context).size.width * 0.8,
                child: val != null
                    ? Image.file(
                        val,
                        fit: BoxFit.contain,
                      )
                    : Text("Tire a foto"))));
  }
}

我如何在画廊中保存图片？

1 个答案: