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About the test

The Flutter online test evaluates the candidate's knowledge of key concepts used to build UIs with Flutter.

It is an ideal test for pre-employment screening. A good Flutter developer should be able to work with the Flutter framework to build high performance and user-friendly UIs.

The online test requires candidates to answer multiple choice and fill in the blank questions about Flutter.

Sample public questions

Easy
5 min
mca
Public
Flutter
Null Safety

Consider the following code for a PatientNameDisplay widget in a hospital app made with Flutter:

class PatientNameDisplay extends StatefulWidget {
  final String patientName;
  final bool isAlive;
  PatientNameDisplay({this.patientName, this.isAlive});

  @override
  State<PatientNameDisplay> createState() => _PatientNameDisplayState();
}

class _PatientNameDisplayState extends State<PatientNameDisplay> {
  @override
  Widget build(BuildContext context) {
    return Text(
      (widget.patientName ?? "John Doe"),
      style: TextStyle(color: widget.isAlive ? Colors.blue : Colors.red),
    );
  }
}

The PatientNameDisplay widget defined above is used to display a patient's name. It has the following requirements:

  • The widget might receive patientName as null in the case of anonymous patients.
  • The widget will always receive the patient's status in the isAlive field.

Considering the requirements and the code above, what needs to be done to migrate the code to have sound null safety?

Easy
5 min
mca
Public
Flutter
Layout
Widgets

You are making a Flutter widget to display a popup ad in your app.

The popup ad has 3 sections - title, main, and footer.

Below is the code of the widget:

Column(
    crossAxisAlignment: CrossAxisAlignment.center,
    mainAxisAlignment: MainAxisAlignment.spaceBetween,
    children: <Widget>[
      Expanded(
        flex: 2,
        child: Container(
          margin: EdgeInsets.symmetric(vertical: 5),
          width: double.infinity,
          child: Center(child: Text("Title content"))),
      ),
      Expanded(
        flex: 4,
        child: Container(
          width: double.infinity,
          child: Center(child: Text("Main content"))),
      ),
      Expanded(
        flex: 1,
        child: Container(
          width: double.infinity,
          child: Text("Footer content"))
      ),
    ]);

What can we conclude about the layout of the above widget? 

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5 more premium Flutter questions

Product Details, Social Media Data, Files Screen, Diary App, Student Search.

Skills and topics tested

  • Flutter
  • Conditional Rendering
  • Widgets
  • Async-Await
  • Asynchronous Programming
  • Navigation
  • Layout

For job roles

  • Flutter Developer
  • Mobile Developer

Sample candidate report

What others say

Decorative quote

Simple, straight-forward technical testing

TestDome is simple, provides a reasonable (though not extensive) battery of tests to choose from, and doesn't take the candidate an inordinate amount of time. It also simulates working pressure with the time limits.

Jan Opperman, Grindrod Bank

Product reviews

G2 High Performer 2022G2 Read Our Reviews

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