how to convert double to int in dart?

Question

I have a code like this

double total = 20.2;
int min = total as int;

flutter build was ok but it was exception on runtime.

I have tried int.parse() but it requires string not double.

Do you have any suggestion?

Answer 1

If you want to round the value :

double total = 20.2;
int min = total.round();

If you want to just truncate the value :

double total = 20.2;
int min = total.toInt();

Answer 2

Try below code

1. Using toInt()

2. Using truncate()

   void main() {
      double d = 20.2;
    //using toInt();
      int a = d.toInt();
      print('Using toInt - $a');
    //   using truncate();
      int b = d.truncate();
      print('Using truncate - $b');
    }
   

Answer 3

Possible duplicate with How to convert a double to an int in Dart?

In short, you can do that using .toInt()

double total = 20.2;
print(total.toInt());