82 lines
3.3 KiB
Markdown
82 lines
3.3 KiB
Markdown
# image_gallery_saver
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[](https://travis-ci.org/hui-z/image_gallery_saver#)
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[](https://pub.dartlang.org/packages/image_gallery_saver)
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[](https://choosealicense.com/licenses/mit/)
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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.
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## Usage
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To use this plugin, add `image_gallery_saver` as a dependency in your pubspec.yaml file. For example:
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```yaml
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dependencies:
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image_gallery_saver: '^2.0.3'
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```
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## iOS
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Your project need create with swift.
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Add the following keys to your Info.plist file, located in <project root>/ios/Runner/Info.plist:
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* NSPhotoLibraryAddUsageDescription - describe why your app needs permission for the photo library. This is called Privacy - Photo Library Additions Usage Description in the visual editor
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## Android
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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).
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In Android version 10, Open the manifest file and add this line to your application tag
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```
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<application android:requestLegacyExternalStorage="true" .....>
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```
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## Example
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Saving an image from the internet, quality and name is option
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``` dart
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_saveLocalImage() async {
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RenderRepaintBoundary boundary =
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_globalKey.currentContext!.findRenderObject() as RenderRepaintBoundary;
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ui.Image image = await boundary.toImage();
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ByteData? byteData =
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await (image.toByteData(format: ui.ImageByteFormat.png));
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if (byteData != null) {
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final result =
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await ImageGallerySaver.saveImage(byteData.buffer.asUint8List());
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print(result);
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}
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}
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_saveNetworkImage() async {
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var response = await Dio().get(
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"https://ss0.baidu.com/94o3dSag_xI4khGko9WTAnF6hhy/image/h%3D300/sign=a62e824376d98d1069d40a31113eb807/838ba61ea8d3fd1fc9c7b6853a4e251f94ca5f46.jpg",
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options: Options(responseType: ResponseType.bytes));
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final result = await ImageGallerySaver.saveImage(
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Uint8List.fromList(response.data),
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quality: 60,
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name: "hello");
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print(result);
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}
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```
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Saving file(ig: video/gif/others) from the internet
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``` dart
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_saveNetworkGifFile() async {
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var appDocDir = await getTemporaryDirectory();
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String savePath = appDocDir.path + "/temp.gif";
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String fileUrl =
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"https://hyjdoc.oss-cn-beijing.aliyuncs.com/hyj-doc-flutter-demo-run.gif";
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await Dio().download(fileUrl, savePath);
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final result =
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await ImageGallerySaver.saveFile(savePath, isReturnPathOfIOS: true);
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print(result);
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}
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_saveNetworkVideoFile() async {
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var appDocDir = await getTemporaryDirectory();
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String savePath = appDocDir.path + "/temp.mp4";
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String fileUrl =
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"https://s3.cn-north-1.amazonaws.com.cn/mtab.kezaihui.com/video/ForBiggerBlazes.mp4";
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await Dio().download(fileUrl, savePath, onReceiveProgress: (count, total) {
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print((count / total * 100).toStringAsFixed(0) + "%");
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});
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final result = await ImageGallerySaver.saveFile(savePath);
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print(result);
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}
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```
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