Unhandled Exception: type 'int' is not a subtype of type 'String'

user_6702693 0
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I have this error : Unhandled Exception: type 'int' is not a subtype of type 'String' on this line of code :

        double d=double.parse(map2["gain_gem"]);

map2["gain_gem"] is returned by php script api and return value 1

And after i try to do this : 

globals.points = globals.points+d;

i have tried too : 

globals.points = globals.points+double.parse(map2["gain_gem"]);

same problem

globals.points is defined as double in my script 

double points=0;
flutter
1 Answers

You need to setup the int as a String first. The map2 value "gain_gem" is an int, that's where your error is coming from but to parse that value as a double it needs to be a String so if you toString the input it will be able to change it to a double. You should definitely make sure it will always be an int of course.

double d=double.parse(map2["gain_gem"].toString());

Documentation on toString()

user_49418750
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