Using existing answer as a hint text

Question

i'm trying to display the existing answers that are stored in the list List<Data> data = []; as a hint text if they're available. currently i'm using this code: https://pastecode.io/s/bj9jkx06

the error is that if i answer the question number two, the hint text will show in the textfield number one.

Answer 1

I think the Data object is not required. I would simply use another map<String, String> where the key is the question, exactly as your others maps.

Map<String, String> data = {}

This requires the data loading inside the read method to be changed as follows:

raw.forEach((key, value) {
   data[key] = value;
});

Now that your data are loaded, you can retrive the hint for the question in this way, using the question as the key:

String hint = data[question] != null? data[question] : 'write something';

If data doesn't contains record related to a specific question, it will return 'write something' string

Answer 2

Try to give the TextField on the InputDecoration property of hintText it takes a string like

hintText: "Hint Text"

Answer 3

just to remind you, index starts with 0. So you are getting one textfield behind.