可帮助 Flutter 开发者将图片、视频等文件保存到设备相册。支持网络和本地资源保存,提供质量设置、文件名自定义等功能,适配 iOS 和 Android 平台权限处理。【此简介由AI生成】
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Translated by AI, submit an issue feedback
image_gallery_saver
我们使用 image_picker 插件从 Android 和 iOS 的图片库中选择图片,但它无法将图片保存到相册。本插件可提供此功能。
使用方法
要使用此插件,请在您的 pubspec.yaml 文件中添加 image_gallery_saver 作为依赖项。例如:
dependencies:
image_gallery_saver: '^2.0.3'
iOS
您的项目需使用 Swift 创建。 将以下键值添加到 Info.plist 文件中,该文件位于 <项目根目录>/ios/Runner/Info.plist:
- NSPhotoLibraryAddUsageDescription - 描述您的应用为何需要相册权限。在可视化编辑器中,此项称为「隐私 - 照片库添加用途说明」
Android
您需要申请存储权限以将图片保存至相册。可通过 flutter_permission_handler 处理存储权限。 在 Android 10 版本中,打开清单文件并在 application 标签内添加此行代码:
<application android:requestLegacyExternalStorage="true" .....>
示例
从互联网保存图片,质量和名称可自定义
_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);
}
从互联网保存文件(如:视频/GIF/其他)
_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);
}
Introduction
可帮助 Flutter 开发者将图片、视频等文件保存到设备相册。支持网络和本地资源保存,提供质量设置、文件名自定义等功能,适配 iOS 和 Android 平台权限处理。【此简介由AI生成】
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