Required parameters per set flutter
let's say I have a class that has a particular style and placement for 2 buttons. I need the style and placement of buttons to be the same across some aspects of the app. As a result a programmer can…
Flutter "Null check operator used on a null value" error
i was trying to create a news app with news api, but i got a weird error when 1 tile of the news actually showedup but there's also an error message in the app. i need help with how do…
Null safety problem – map contains non nullable values – Flutter
Why is there an error: A value of type 'TestBloc?' can't be returned from the method 'createFromId' because it has a return type of 'TestBloc. The map contains values of type TestBloc (not of type TestBloc?) so it is impossible…
When before the open page show "Null check operator used on a null value" and after fetch from data base and show in flutter
In my code fetch data and show nicely but before open the that page show this error and after show those details.In my code fetch data from firebase array type data and string type data. error after that error page…
Unhandled Exception: LateInitializationError: Field '_deviceCalendarPlugin@332335403' has not been initialized – Flutter
I am getting the error: Unhandled Exception: LateInitializationError: Field '_deviceCalendarPlugin@332335403' has not been initialized.late DeviceCalendarPlugin _deviceCalendarPlugin This statement getting error I am adding ? sign but in console the error is showing null string is not supporting. I am creating…
In my model class normaly working but it show error now iam working i don't know what is the reason – Flutter
as you see in this picture it shows error when iam using this model class how to solve this problem. I tried but it's not working.
Flutter – null check operator error in a child that should not be rendered yet
I made a Loader widget which shows a loading indicator if isLoading = true and shows a child widget only if isLoading = false. The problem is when I use nullable data in the child, even though isLoading = true…
Showing Error while using Singlechildview widget – Flutter
I created this screen and right now while I use keyboard to type the email or password, it showed overflow error and the button element is hidden and not accessible to me. I searched and used SingleChildScrollView and then the…
How to reverse Map values in dart – Flutter
I am trying to reverse Map values. But didin't get proper one, here my Map Map<String, dynamic> details = { "sms": { "very_low": false, "low": false, "medium": false, "high": false, "very_high": true } }; I want to get like this…
Couldn't resolve the gap between? – Flutter
I have created a LinkText class of my own which has a Row of Text which has a normal text and link text for getting to another page. I already had a page of Sign up of column method, while…