setState method
This method is used to set the state of the cards containing the questions and answers.
It accepts a parameter doc
of type Map<String,String> which essentially contains
an unordered list of question:answer key:value pairs typically fetched from a database.
This method sets the state and arranges the questions according to the order
specified by the _questionStructure
variable.
Implementation
void setState(Map<String, dynamic> doc) {
this.resetState();
for (int i = 0; i < expanded.length; i++) {
doc.keys.forEach((field) {
if (expanded[i].keys.toList()[0].toString() == field) {
if (!(expanded[i].keys.toList()[0] is NestedQuestion ||
expanded[i].keys.toList()[0] is PolarQuestion))
expanded[i].keys.toList()[0].answer.text = doc[field];
this._onEvent(expanded[i], doc[field]);
}
});
}
}