README.md · 夜琉璃君/flutter_image_gallery_saver

# image_gallery_saver

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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);
  }
```
Note:
The ohos platform does not support the storage of videos in flv, mts, rm, vob, and wms formats

注意：
ohos平台当前不支持存储flv、mts、rm、vob、wms格式视频

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