base on flutter中用于保存图片到相册的Plugin # image_gallery_saver [](https://travis-ci.org/hui-z/image_gallery_saver#) [](https://pub.dartlang.org/packages/image_gallery_saver) [](https://choosealicense.com/licenses/mit/) We use the `image_picker` plugin to select images from the Android and iOS image library, but it can't save images to the gallery. This plugin can provide this feature. ## Usage To use this plugin, add `image_gallery_saver` as a dependency in your pubspec.yaml file. For example: ```yaml dependencies: image_gallery_saver: '^2.0.3' ``` ## iOS Your project need create with swift. Add the following keys to your Info.plist file, located in <project root>/ios/Runner/Info.plist: * NSPhotoLibraryAddUsageDescription - describe why your app needs permission for the photo library. This is called Privacy - Photo Library Additions Usage Description in the visual editor ## Android You need to ask for storage permission to save an image to the gallery. You can handle the storage permission using [flutter_permission_handler](https://github.com/BaseflowIT/flutter-permission-handler). In Android version 10, Open the manifest file and add this line to your application tag ``` <application android:requestLegacyExternalStorage="true" .....> ``` ## Example Saving an image from the internet, quality and name is option ``` dart _saveLocalImage() async { RenderRepaintBoundary boundary = _globalKey.currentContext!.findRenderObject() as RenderRepaintBoundary; ui.Image image = await boundary.toImage(); ByteData? byteData = await (image.toByteData(format: ui.ImageByteFormat.png)); if (byteData != null) { final result = await ImageGallerySaver.saveImage(byteData.buffer.asUint8List()); print(result); } } _saveNetworkImage() async { var response = await Dio().get( "https://ss0.baidu.com/94o3dSag_xI4khGko9WTAnF6hhy/image/h%3D300/sign=a62e824376d98d1069d40a31113eb807/838ba61ea8d3fd1fc9c7b6853a4e251f94ca5f46.jpg", options: Options(responseType: ResponseType.bytes)); final result = await ImageGallerySaver.saveImage( Uint8List.fromList(response.data), quality: 60, name: "hello"); print(result); } ``` Saving file(ig: video/gif/others) from the internet ``` dart _saveNetworkGifFile() async { var appDocDir = await getTemporaryDirectory(); String savePath = appDocDir.path + "/temp.gif"; String fileUrl = "https://hyjdoc.oss-cn-beijing.aliyuncs.com/hyj-doc-flutter-demo-run.gif"; await Dio().download(fileUrl, savePath); final result = await ImageGallerySaver.saveFile(savePath, isReturnPathOfIOS: true); print(result); } _saveNetworkVideoFile() async { var appDocDir = await getTemporaryDirectory(); String savePath = appDocDir.path + "/temp.mp4"; String fileUrl = "https://s3.cn-north-1.amazonaws.com.cn/mtab.kezaihui.com/video/ForBiggerBlazes.mp4"; await Dio().download(fileUrl, savePath, onReceiveProgress: (count, total) { print((count / total * 100).toStringAsFixed(0) + "%"); }); final result = await ImageGallerySaver.saveFile(savePath); print(result); } ``` ", Assign "at most 3 tags" to the expected json: {"id":"10738","tags":[]} "only from the tags list I provide: [{"id":77,"name":"3d"},{"id":89,"name":"agent"},{"id":17,"name":"ai"},{"id":54,"name":"algorithm"},{"id":24,"name":"api"},{"id":44,"name":"authentication"},{"id":3,"name":"aws"},{"id":27,"name":"backend"},{"id":60,"name":"benchmark"},{"id":72,"name":"best-practices"},{"id":39,"name":"bitcoin"},{"id":37,"name":"blockchain"},{"id":1,"name":"blog"},{"id":45,"name":"bundler"},{"id":58,"name":"cache"},{"id":21,"name":"chat"},{"id":49,"name":"cicd"},{"id":4,"name":"cli"},{"id":64,"name":"cloud-native"},{"id":48,"name":"cms"},{"id":61,"name":"compiler"},{"id":68,"name":"containerization"},{"id":92,"name":"crm"},{"id":34,"name":"data"},{"id":47,"name":"database"},{"id":8,"name":"declarative-gui "},{"id":9,"name":"deploy-tool"},{"id":53,"name":"desktop-app"},{"id":6,"name":"dev-exp-lib"},{"id":59,"name":"dev-tool"},{"id":13,"name":"ecommerce"},{"id":26,"name":"editor"},{"id":66,"name":"emulator"},{"id":62,"name":"filesystem"},{"id":80,"name":"finance"},{"id":15,"name":"firmware"},{"id":73,"name":"for-fun"},{"id":2,"name":"framework"},{"id":11,"name":"frontend"},{"id":22,"name":"game"},{"id":81,"name":"game-engine "},{"id":23,"name":"graphql"},{"id":84,"name":"gui"},{"id":91,"name":"http"},{"id":5,"name":"http-client"},{"id":51,"name":"iac"},{"id":30,"name":"ide"},{"id":78,"name":"iot"},{"id":40,"name":"json"},{"id":83,"name":"julian"},{"id":38,"name":"k8s"},{"id":31,"name":"language"},{"id":10,"name":"learning-resource"},{"id":33,"name":"lib"},{"id":41,"name":"linter"},{"id":28,"name":"lms"},{"id":16,"name":"logging"},{"id":76,"name":"low-code"},{"id":90,"name":"message-queue"},{"id":42,"name":"mobile-app"},{"id":18,"name":"monitoring"},{"id":36,"name":"networking"},{"id":7,"name":"node-version"},{"id":55,"name":"nosql"},{"id":57,"name":"observability"},{"id":46,"name":"orm"},{"id":52,"name":"os"},{"id":14,"name":"parser"},{"id":74,"name":"react"},{"id":82,"name":"real-time"},{"id":56,"name":"robot"},{"id":65,"name":"runtime"},{"id":32,"name":"sdk"},{"id":71,"name":"search"},{"id":63,"name":"secrets"},{"id":25,"name":"security"},{"id":85,"name":"server"},{"id":86,"name":"serverless"},{"id":70,"name":"storage"},{"id":75,"name":"system-design"},{"id":79,"name":"terminal"},{"id":29,"name":"testing"},{"id":12,"name":"ui"},{"id":50,"name":"ux"},{"id":88,"name":"video"},{"id":20,"name":"web-app"},{"id":35,"name":"web-server"},{"id":43,"name":"webassembly"},{"id":69,"name":"workflow"},{"id":87,"name":"yaml"}]" returns me the "expected json"