what is callBacking function in flutter ? code example
Example: dart callback function
class Obj {
// <returnType> Function(<parameters>) fName;
String Function(String, int, etc...) callbackName;
// Call the callback function somewhere, eg constructor, textfield etc.
Obj(this.callbackName);
}
main() {
// Use the callback
var myObj = Obj((String p1, int p2, etc...) {
return "$p1$p2";
});
}