How to pass functions to widgets in Flutter

0 votes

Hi Guys,

I am new in Flutter Framework. Can anyone tell me how to pass functions to widgets in Flutter? 

Jul 20, 2020 in Others by akhtar
• 38,220 points
3,797 views

1 answer to this question.

0 votes

Hi@akhtar,

Functions are first-class objects in Dart and can be passed as parameters to other functions. We pass a function to a widget essentially saying, invoke this function when something happens. Callbacks using interfaces like Android have too much boilerplate code for a simple callback. Dart does both declarations as well as setting up the callback. This becomes much cleaner and organized and helps us avoid unnecessary complications.

FlatButton(  
  onPressed: () {  
    // Do something here  
  }  
)
answered Jul 20, 2020 by MD
• 95,320 points

Related Questions In Others

0 votes
1 answer

How to create a Project in Flutter?

Hi@akhtar, Flutter has an inbuilt command to create ...READ MORE

answered Jul 20, 2020 in Others by MD
• 95,320 points
231 views
0 votes
1 answer

How to import module in Flutter code?

Hi@akhtar, You can import your module from different ...READ MORE

answered Jul 23, 2020 in Others by MD
• 95,320 points
819 views
0 votes
1 answer

How to create an Icon Button in Flutter?

Hi@akhtar, To create an Icon Button in Flutter, ...READ MORE

answered Jul 24, 2020 in Others by MD
• 95,320 points
266 views
0 votes
1 answer

How to create a Volume Icon in Flutter App?

Hi@akhtar, You can use Icon Widget to create ...READ MORE

answered Jul 24, 2020 in Others by MD
• 95,320 points
595 views
0 votes
1 answer
0 votes
1 answer

What are some advantages of Flutter?

Hi@akhtar, Nowadays Flutter is taking the market. It ...READ MORE

answered Jul 17, 2020 in Others by MD
• 95,320 points
147 views
0 votes
1 answer

'git rev-parse HEAD' is not recognized as an internal or external command

Hi@akhtar, I also faced the same problem. You ...READ MORE

answered Jul 17, 2020 in Others by MD
• 95,320 points
1,241 views
+1 vote
3 answers

Flutter plugin not installed; this adds Flutter specific functionality.

Here Is All Possible Solution Added Flutter ...READ MORE

answered Dec 16, 2020 in Others by Blogging
• 140 points
18,589 views
0 votes
1 answer

How to install Flutter in Windows system?

Hi@akhtar, You can follow the below-given steps to ...READ MORE

answered Jul 17, 2020 in Others by MD
• 95,320 points
596 views
0 votes
1 answer

How to check the connected device name in Flutter?

Hi@akhtar, Flutter has its command own command to ...READ MORE

answered Jul 17, 2020 in Others by MD
• 95,320 points
1,866 views