Using existing answer as a hint text-CodePudding

The

CodePudding user response：

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

hintText: "Hint Text"

CodePudding user response：

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