TextField don't resize my alertdialog - Flutter - flutter

Question

I leave the entire code fragment, the main idea is to have a textfield that, by using the keyboard, shows me a series of elements, in the description variable, I have that element to select, this works well, the only issue is, how to keep my alertdialog with all the correct notes.
return await Get.generalDialog(
barrierLabel: "Barrier",
barrierDismissible: false,
transitionBuilder: (context, a1, a2, widget) {
return StatefulBuilder(builder: (context, setState) {
return Transform.scale(
scale: a1.value,
child: Opacity(
opacity: a1.value,
child: Dialog(
insetAnimationCurve: Curves.bounceOut,
insetPadding: EdgeInsets.only(right: 20, left: 20),
//backgroundColor: colorFour(),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(12.0),
),
child: SingleChildScrollView(
child: Container(
height: 340,
child: Column(
children: <Widget>[
Container(
alignment: Alignment.topCenter,
height: 50,
decoration: BoxDecoration(
color: Colors.red,
borderRadius: BorderRadius.only(
topLeft: Radius.circular(12),
topRight: Radius.circular(12),
),
),
padding: EdgeInsets.all(5),
child: Center(
child: Text(
title,
style: TextStyle(
color: Colors.white,
fontSize: 18,
fontWeight: FontWeight.w600),
maxLines: 2,
textAlign: TextAlign.center,
),
),
),
SingleChildScrollView(
padding: EdgeInsets.only(left: 10, right: 10),
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment:
CrossAxisAlignment.stretch,
children: [
Container(
margin: EdgeInsets.only(top: 10),
child: TextFormField(
controller: controller,
decoration: InputDecoration(
border: OutlineInputBorder(
gapPadding: 5.0)),
keyboardType: TextInputType.text,
maxLines: 1,
onChanged: (String cadena) async {
listado = pivote
.where((x) => x.descripcion
.split("/")[value]
.toLowerCase()
.contains(
cadena.toLowerCase()))
.toList();
setState(() {});
},
),
),
Container(
height: 200,
margin: EdgeInsets.only(
top: 10, bottom: 10.0),
decoration: BoxDecoration(
borderRadius: BorderRadius.all(
Radius.circular(5)),
border: Border.all(
color: Colors.grey, width: 1)),
child: ListView.builder(
padding: const EdgeInsets.all(0.0),
physics: BouncingScrollPhysics(),
itemCount: listado.length,
shrinkWrap: true,
scrollDirection: Axis.vertical,
itemBuilder: (context, index) {
return Container(
height: 34,
child: InkWell(
child: SizedBox.expand(
child: Align(
alignment:
Alignment.centerLeft,
child: Padding(
padding:
EdgeInsets.only(
right: 5,
left: 5),
child: Text(
listado[index]
.descripcion
.split(
"/")[value],
textAlign:
TextAlign.left),
),
),
),
onTap: () {
Get.back(result: {
"item": listado[index],
});
}),
);
}),
),
],
)),
],
),
),
),
),
));
});
},
pageBuilder: (context, animation1, animation2) {
return Container();
});
I need to overlay my alertdialog, that is to say that the size does not break my design, this happens after focusing on the textfield

Answer 1

Show us some code to help you out.
In any case, it might make sense to wrap the layout in a SingleChildScrollView.
Here is a very good explanation.
https://api.flutter.dev/flutter/widgets/SingleChildScrollView-class.html
yourAlertDialog(
context: context,
builder: (BuildContext context) {
return SingleChildScrollView(child: yourchild);
},
);
Your layout should be wrapped in Scrollview , I didn't replicate or run this code but it should be like this:
AlertDialog(
title: Text("title", style: TextStyle(color: ThemeColors.colorPrimary),),
content: Container(
width: double.maxFinite,
child: SingleChildScrollView(
scrollDirection: Axis.vertical,
child: StatefulBuilder(builder: (BuildContext context1, StateSetter setState) {
this.setState = setState;
return Container(
height: 340,
child: Column(
children: <Widget>[
//your container
],
),
),
}),
)),
);