dickverweij/saver_gallery

saver_gallery

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 saver_gallery as a dependency in your pubspec.yaml file. For example:

dependencies:
  saver_gallery: ^3.0.1

iOS

Your project need create with swift. Add the following keys to your Info.plist file, located in /ios/Runner/Info.plist:

<key>NSPhotoLibraryAddUsageDescription</key>
<string>获取相册权限</string>
<key>NSPhotoLibraryUsageDescription</key>
<string>获取相册权限</string>

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. AndroidManifest.xml file need to add the following permission:

    <uses-permission
       android:name="android.permission.WRITE_EXTERNAL_STORAGE"
       tools:ignore="ScopedStorage" />
    <!--  if androidExistNotSave = true -->
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.READ_MEDIA_IMAGES" />   

Example

Access permission(use permission_handler)

    bool androidExistNotSave = false;
    bool isGranted;
    if (Platform.isAndroid) {
      final deviceInfoPlugin = DeviceInfoPlugin();
      final deviceInfo = await deviceInfoPlugin.androidInfo;
      final sdkInt = deviceInfo.version.sdkInt;
      /// [androidExistNotSave]
      /// On Android, if true, the save path already exists, it is not saved. Otherwise, it is saved
      /// 在安卓平台上,如果是true,则保存路径已存在就不在保存,否则保存
      /// is androidExistNotSave = true,write as follows:
      if (androidExistNotSave) {
        isGranted = await (sdkInt > 33 ? Permission.photos : Permission.storage).request().isGranted;
      } else {
      /// is androidExistNotSave = false,write as follows:
        isGranted = sdkInt < 29 ? await Permission.storage.request().isGranted : true;
      }
    } else {
      isGranted = await Permission.photosAddOnly.request().isGranted;
    }

Saving an image from the internet(ig: png/jpg/gif/others), quality and name is option

  _saveGif() async {
    var response = await Dio().get(
        "https://hyjdoc.oss-cn-beijing.aliyuncs.com/hyj-doc-flutter-demo-run.gif",
        options: Options(responseType: ResponseType.bytes));
    String picturesPath = "test_jpg.gif";
    debugPrint(picturesPath);
    final result = await SaverGallery.saveImage(
        Uint8List.fromList(response.data),
        quality: 60,
        name: picturesPath,
        androidRelativePath: "Pictures/appName/xx",
        androidExistNotSave: false,
        );
    debugPrint(result.toString());
    _toastInfo("$result");
  }

Saving file(ig: video/others) from the internet

_saveVideo() async {
    var appDocDir = await getTemporaryDirectory();
    String savePath = appDocDir.path + "/temp.mp4";
    await Dio().download("http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4", savePath);
    final result = await SaverGallery.saveFile(file: savePath,androidExistNotSave: true, name: '123.mp4',androidRelativePath: "Movies");
    print(result);
 }