TextField hint is ellided at one line with maxLines: null #46182
Description
Most multiline TextFields expand to accommodate their hint, except when maxLines is null. Instead, it should accommodate the hint when maxLines is null as well. This would reduce confusion and allow a TextField that grows to any size to accommodate the hint, which is currently not possible.
Correct Case
Setting maxLines allows the TextField to increase in size to fit as much of the hint as possible:
TextField(
minLines: null,
maxLines: 2,
decoration: InputDecoration(
hintText: 'To be, or not to be, that is the question. Whether \'tis nobler in the mind to suffer the slings and arrows of outrageous fortune, or to take arm against a sea of trouble, and by opposing, end them.',
),
)
Incorrect Case
However, when maxLines is null, the TextField stays at 1 line regardless of the length of the hint:
TextField(
minLines: null,
maxLines: null,
decoration: InputDecoration(
hintText: 'To be, or not to be, that is the question. Whether \'tis nobler in the mind to suffer the slings and arrows of outrageous fortune, or to take arm against a sea of trouble, and by opposing, end them.',
),
)