texteditingcontroller

问题 I want to retrieve the value from textEditingController with a loop, the problem that occurs when the listview is not scrolled will result in an error, "RangeError (index): Invalid value: Not in inclusive range 0..23: 24", I have random data of 40 records, the application will run properly when scrolling to the end of the line. I want even though I don't scroll down the data can still be retrieved without error. you can run my sample code, please help me thanks. import 'dart:math'; import