flutter-web

How to Pick files and Images for upload with flutter web

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Using dart:html package directly in Flutter is not recommended. Instead, use this package: https://pub.dev/packages/file_picker. Example of how to use in Flutter Web: class FileUploadButton extends StatelessWidget { @override Widget build(BuildContext context) { return RaisedButton( child: Text(‘UPLOAD FILE’), onPressed: () async { var picked = await FilePicker.platform.pickFiles(); if (picked != null) { print(picked.files.first.name); } }, ); … Read more

XMLHttpRequest error in flutter web [Enabling CORS AWS API gateway]

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this worked for me, I added the below header on the lambda function return { statusCode: 200, headers: { “Access-Control-Allow-Origin”: “*”, // Required for CORS support to work “Access-Control-Allow-Credentials”: true, // Required for cookies, authorization headers with HTTPS “Access-Control-Allow-Headers”: “Origin,Content-Type,X-Amz-Date,Authorization,X-Api-Key,X-Amz-Security-Token,locale”, “Access-Control-Allow-Methods”: “POST, OPTIONS” }, body: JSON.stringify(item) };

How can I navigate between 2 classes, one of them requires passing data? in flutter

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you can use constructor but in this case, whenever you use this class, you have to provide value, also you can make class value nullable and check it on build time. Another way is passing data by Route. for more navigate-with-arguments Here are is example: Passing data using ModalRoute Navigator.of(context).push( MaterialPageRoute( builder: (context) => WidgetA(), … Read more

How to import platform specific dependency in Flutter/Dart? (Combine Web with Android/iOS)

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Here is my approach to your issue. This is based on the implementations from http package as in here. The core idea is as follows. Create an abstract class to define the methods you will need to use. Create implementations specific to web and android dependencies which extends this abstract class. Create a stub which … Read more