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VisualizaçõesFlutter web Save as File
In flutter web, I created app.js file and used that in the flutter project.
When I release the project and publish it in the IIS javascript function not work.
It's working when I run the project debug or flutter run -d chrome --release.
https://developer.mozilla.org/en-US/docs/Web/API/window/showSaveFilePicker
index.html
<!DOCTYPE html>
<html>
<head>
...
...
<script src="app.js" defer></script>
<script>
// The value below is injected by flutter build, do not touch.
var serviceWorkerVersion = null;
</script>
<!-- This script adds the flutter initialization JS code -->
<script src="flutter.js" defer></script>
</head>
<body>
...
...
</body>
</html>
app.js
async function saveFile(blob, fileName) {
const opts = {
suggestedName: fileName,
types: [{
description: 'Text file',
accept: { 'text/plain': ['.txt'] },
}],
};
// create a new handle
const newHandle = await window.showSaveFilePicker(opts);
// create a FileSystemWritableFileStream to write to
const writableStream = await newHandle.createWritable();
// write our file
await writableStream.write(blob);
// close the file and write the contents to disk.
await writableStream.close();
}
My Dart Function file_saver.dart
class FileSaver {
Future saveAs2(List<String> finalLines, String fileName) async {
await js.context.callMethod(
'saveFile',
[
html.Blob(
finalLines,
'text/plain',
),
fileName
],
);
}
}
Error :
app.js:19 Uncaught (in promise) TypeError: window.showSaveFilePicker is not a function
at saveFile (app.js:19:36)
at lz.la (main.dart.js:41242:19)
at main.dart.js:41902:19
at au6.a (main.dart.js:5401:62)
at au6.$2 (main.dart.js:37029:14)
at Object.H (main.dart.js:5387:10)
at a2R.TA (main.dart.js:41904:10)
at a2R.u9 (main.dart.js:41898:21)
at main.dart.js:42628:13
at au6.a (main.dart.js:5401:62
·
Juan Pablo Isaza
1 Respostas
Responde à pergunta0
According to the docs, you must run your app on HTTPS hosts to use this function:
Is your hosting supports HTTPS?
Do you check your URL and are you sure it starts with https?
And do you run your app on a browser that supports showSaveFilePicker function?
·
Juan Pablo Isaza
Relatório
Responde à pergunta