我怎样才能在图库中保存图片？

Question

这是打开相机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

您可以复制粘贴运行下面的完整代码
第 1 步：将 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> 添加到 AndroidManifest.xml
第 2 步：使用包 https://pub.dev/packages/gallery_saver
第 3 步：在 onFile 中使用 GallerySaver.saveImage 和 Navigator.pop(context,file)
代码片段

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"))));
  }
}

我怎样才能在图库中保存图片？

How can i save pics in gallery?

camera

gallery

flutter