Flutter 分享图片 - 打开失败 : ENOENT (No such file or directory), null, null)

Question

https://pub.dev/packages/share

Dependency: 
   share: ^0.6.5+2

本地文件目录

Future<String> get _localPath async {
    final directory = await getApplicationDocumentsDirectory();
    return directory.path;
}

分享功能

Future<void> _onShare(BuildContext context) async {
final RenderBox box = context.findRenderObject();
final path = await _localPath;

await Share.shareFiles(
    ['$path/assets/images/${widget.imgUrl}.png'],
    text: text,
    sharePositionOrigin: box.localToGlobal(Offset.zero) & box.size);
}

按钮 - 按下

FlatButton(child: Text('Share'), onPressed: () => _onShare(context)),

我正在使用这个包来分享来自应用程序的图像。我在共享文本时没有问题，但是当我添加共享图像的功能时，我不断收到丢失图像的错误。我做得对吗？

Answer 1

设法找出问题所在。看来我需要先保存图像才能引用图像。

final ByteData bytes = await rootBundle
    .load('assets/images/${widget.imgUrl}.png');
final Uint8List list = bytes.buffer.asUint8List();
final directory = (await getExternalStorageDirectory()).path;
File imgFile = File('$directory/screenshot.png');
imgFile.writeAsBytesSync(list);

Share.shareFiles(['$directory/screenshot.png'],
    sharePositionOrigin: box.localToGlobal(Offset.zero) & box.size);