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:…
I need to create a json from model. But if some field was empty or null in my model my json should not contain that specific key at all. I need to create a json object like this: { "bloodTest":…
enter image description here the next and skip buttons are not working enter image description here Is anyone knows what the issue?
Let say I have stream that fetch data from api and it runs every 2 seconds: Stream.periodic(Duration(seconds: 2), (_) { // API data... }); now while this works it also sends too many requests till i get too many request…
I have a HomePage, from where I want to pass my coordinates: child: FloatingActionButton( onPressed: () { Navigator.push( context, MaterialPageRoute(builder: (context) => MapScreen(historyItem.latLong)), ); }, child: Icon(Icons.place), ) I want to pass them to my MapScreen, which is stateful. However,…
I have two pages I am navigating between. When navigating back, I want the first page to reload the data/rebuild itself, but it doesn't seem to be working. I read through the replied here but I still cannot get it…