In SummaryItem(code bellow) when i tried to cast the question_index as an int, it's showing me an error saying type 'Null' is not a subtype of type 'int' in type cast. In QuestionIdentifier(photo bellow), question_index is set as an int.…
I'm attempting to disable the elevated "Scan Devices" button while the scanning process is in progress. When I alter its state after pressing the button, it does not return to its active state, even after the scanning is finished. Here…
I've problem that says badge isn't a function and can't read it. And the second issue says, "The name 'Badge' is defined in the libraries". can u help me guys? Widget _buildIconNotified() { return Badge( badgeColor: AppColor.actionColor, padding: EdgeInsets.all(3), position:…
How can I write and read Flutter's TimeOfDay value in Firestore? TimeOfDay is a value representing a time during the day, independent of the date that day might fall on or the time zone. Should I convert it to a…
I developed a mobile application. I wanted to try it on my own Android phone by converting it to an APK. However, when I open it on my phone, the app is stuck on a white screen. Why could this…
I'm using flutter_downloader package and I have to get the data in listen method, but it doesn't work. I don't receive anything. I read that the issue could be because in send method I have to paste only primitive objects…
I successfully achieve the sidebar menu by using drawer and ListTile, but the problem is when the ListTile tapped and the drawer closed, I reopen the drawer will see that the tapped ListTile will be reset to untapped color. How…
I am devoloping a multi platform app using flutter for android and ios. Now I am trying to connect my app with Firebase. I did every necessary steps including, adding google_services.json, adding firebase core, auth, core web, cloud firestore. But…
What is difference when you use curly brackets inside constructor in dart classes and when you don't use it. And why you can not have not nullable and not initialized fields inside constructor when you use curly brackets, but you…
So while creating my Registration form in the flutter app for my project. I encountered a problem in the display of error messages when a form is not correct. The following is the code for the Full name input field.…