error: Non-nullable instance field 'textResult' must be initialized. (not_initialized_non_nullable_instance_field at [aplikasi_scan_plat_nomor] libscreenhome.dart:18) class _HomeState extends State { String textResult;
When I remove SingleChildScrollView and use the property physics: const NeverScrollableScrollPhysics(), The code works fine and the scrolling works, But by doing this I the scroll only works for this widget NewsItem which is at the end of the page…
I have a problem with my flutter app using the package webview_flutter , here Is my code: pubspec.yaml webview_flutter: ^4.0.6 dart WebViewController breachWebViewController = WebViewController() ..setJavaScriptMode(JavaScriptMode.unrestricted) ..setBackgroundColor(const Color(0x00000000)) ..setNavigationDelegate( NavigationDelegate( onProgress: (int progress) { // Update loading bar. }, onPageStarted:…
Ok, so my first web app, heres the step to do it, created a flutter project, it already contained a web folder, first ran the project in chrome debug, worked fine, next uploaded to github just the project folder web…
before I upgraded my flutter version everything went smoothly there was no warning. but after I updated flutter suddenly there was a warning Don't use 'BuildContext's across async gaps. Try rewriting the code to not reference the 'BuildContext'. Here is…
I am new to flutter dart and having trouble, with the syntax, to pass a list with multiple blocks to a function. This is my list: Final list = [ { 'name' : 'abc', 'age : '25', 'gender' : 'M',…
I have this method which needed a context so I'm passing it as a parameter. Future<void> myPopup(BuildContext context) { return Dialogs.materialDialog( context: context, ... ); } I tried to wrap the whole Dialogs.materialDialog with Builder in order for me not…
I am getting the referer for a header with a Future function and then I am trying to pass that to a build widget: referer() async { refererFinal = await getReferer(); } Map<String, String> loadHeaders() { Map<String, String> headers =…
error: Non-nullable instance field 'pickedImage' must be initialized. error: Non-nullable instance field 'textResult' must be initialized. error: The non-nullable variable 'hasilScan' must be initialized. File pickedImage; String textResult; static String hasilScan;
In flutter, enter image description here i need set even container size for all single and multi digit text in container... container widget code Widget cirbtn(String btntext,){ return GestureDetector( onTap: (){}, child: Container( margin: const EdgeInsets.all(10), padding: const EdgeInsets.all(5), decoration:…