how to add flexible height to showGeneralDialog on Flutter? - flutter

Question

I added padding for transparent outside. But fixed height. How to change it?
padding: EdgeInsets.fromLTRB(20, 50, 20, 50),
Is it possible to remove above this line and flexible(center)?
I am expected like this flexible height alert. click here
onPressed: () {
showGeneralDialog(
context: context,
barrierColor: Palette.black.withOpacity(.3),
barrierDismissible: true,
transitionDuration: Duration(milliseconds: 400),
pageBuilder: (_, __, ___) {
return ChangePropertyPage(
propertyModel: propertyModel);
},
);
},
change Property Page
class ChangePropertyPage extends StatelessWidget {
final List<PropertyModel> propertyModel;
const ChangePropertyPage({Key key, this.propertyModel}) : super(key: key);
#override
Widget build(BuildContext context) {
final double width = CustomMediaQuery.width(context);
return Padding(
padding: EdgeInsets.fromLTRB(20, 50, 20, 50),
child: Material(
borderRadius: BorderRadius.all(Radius.circular(10)),
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
PropertyListTileWidget(
mainTitle: 'USER\'S Name', subTitle: 'USER\'S Email'),
VerticalSpacing(height: 10),
CustomLine(
height: 1,
width: (width - 40) - 20,
color: Palette.black.withOpacity(.2),
),
Expanded(
child: ListView.builder(
itemCount: propertyModel.length,//now length is 1
shrinkWrap: true,
itemBuilder: (BuildContext context, int index) {
return InkWell(
onTap: ()async{
},
child: PropertyListTileWidget(
mainTitle: '${propertyModel[index].propertyName}',
subTitle: '${propertyModel[index].ownerUId}'),
);
}),
)
],
),
),
),
);
}
}

Answer 1

if you are expecting this:
then
full code:
import 'package:flutter/material.dart';
class CustomDialogBox extends StatefulWidget {
#override
_CustomDialogBoxState createState() => _CustomDialogBoxState();
}
class _CustomDialogBoxState extends State<CustomDialogBox> {
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("Custom Dialog Box"),
centerTitle: true,
),
body:Center(
child:FlatButton(
color: Colors.blue,
onPressed: (){
showDialog(
context: (context),
child: ShowCustomDialogBox()
);
},
child: Text("Show Dialog")
)
) ,
);
}
}
class ShowCustomDialogBox extends StatefulWidget {
#override
State<StatefulWidget> createState() => ShowCustomDialogBoxState();
}
class ShowCustomDialogBoxState extends State<ShowCustomDialogBox>with SingleTickerProviderStateMixin {
AnimationController controller;
Animation<double> scaleAnimation;
#override
void initState() {
super.initState();
controller = AnimationController(vsync: this, duration: Duration(milliseconds: 450));
scaleAnimation =CurvedAnimation(parent: controller, curve: Curves.decelerate);
controller.addListener(() {
setState(() {});
});
controller.forward();
}
#override
Widget build(BuildContext context) {
return Center(
child: Material(
color: Colors.transparent,
child: ScaleTransition(
scale: scaleAnimation,
child: Container(
margin: EdgeInsets.all(20.0),
padding: EdgeInsets.all(8.0),
height: MediaQuery.of(context).size.height/2.5, //Change height of dialog box.
width: MediaQuery.of(context).size.width,
decoration: ShapeDecoration(
color: Colors.white,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(8.0))),
child: Column(
children: <Widget>[
Expanded(
flex: 4,
child: ListView.builder(
itemCount: 10,
itemBuilder: (context, index){
return Column(
// mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text((index+1).toString(),style: TextStyle(color:Colors.blue,fontSize:40),),
Divider()
],
);
}
)
),
Padding(
padding: const EdgeInsets.only(
left: 20.0, right: 10.0, top: 0.0,),
child: ButtonTheme(
height: 35.0,
minWidth: MediaQuery.of(context).size.width/3.5,
child: RaisedButton(
color: Colors.blue,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(5.0)),
splashColor: Colors.white.withAlpha(40),
child: Text(
'Next',
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: 13.0),
),
onPressed: () {
setState(() {
Navigator.pop(context);
});
},
)
)
),
],
)
),
),
),
);
}
}