Follow

Keep Up to Date with the Most Important News

By pressing the Subscribe button, you confirm that you have read and are agreeing to our Privacy Policy and Terms of Use
Contact

Solving nullabe function

I have this function and flutter have a problem becouse go to be null

 Widget getPicker() {
    if (Platform.isIOS) {
      return iOSPicker();
    } else if (Platform.isAndroid) {
      return androidDropdown();
    }
  } 

I try to make it async

Future<Widget> getPicker() async {
    if (Platform.isIOS) {
      return iOSPicker();
    } else if (Platform.isAndroid) {
      return androidDropdown();
    }
  }

But problem still here. How i can solve it?

MEDevel.com: Open-source for Healthcare and Education

Collecting and validating open-source software for healthcare, education, enterprise, development, medical imaging, medical records, and digital pathology.

Visit Medevel

>Solution :

Try tweaking your if statement this way :

 Widget getPicker() {
    if (Platform.isIOS) {
      return iOSPicker();
    }
    return androidDropdown();
  } 

You can also use ternary operator:

 Widget getPicker() {
    return Platform.isIOS ? iOSPicker() : androidDropdown();
  } 
Add a comment

Leave a Reply

Keep Up to Date with the Most Important News

By pressing the Subscribe button, you confirm that you have read and are agreeing to our Privacy Policy and Terms of Use

Discover more from Dev solutions

Subscribe now to keep reading and get access to the full archive.

Continue reading