Reputation: 882
I have tried for a few hours to solve this problem with no success, so I thought it would be worth saving a few hairs by asking Stackoverflow.
The Problem: I cannot get a TextButton to take the full width of its parent AlertDialog widget. When I tried to wrap the TextButton in a SizedBox with a width: double.infinity, it crashes when I push the button (this is supposed to be a way to get the button to take the full width according to the web).
The Intended effect: For the TextButton to take the width of the parent AlertDialog.
This is the minimum viable code that works for the problem (please note that I use the package google fonts, I hope that I've gotten rid of them all, but it's very late here.):
import 'package:flutter/material.dart';
// import 'package:google_fonts/google_fonts.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
const MyApp({Key key}) : super(key: key);
@override
Widget build(BuildContext context) {
return MaterialApp(
theme: ThemeData(
inputDecorationTheme: InputDecorationTheme(
focusedBorder: UnderlineInputBorder(
borderSide: BorderSide(
color: Color(0xffB2413A),
),
),
),
),
home: LoginScreen(),
);
}
}
class LoginScreen extends StatelessWidget {
const LoginScreen({Key key}) : super(key: key);
@override
Widget build(BuildContext context) {
var size = MediaQuery.of(context).size;
return Scaffold(
body: Container(
height: size.height,
child: Center(child: LoginWidget()),
decoration: BoxDecoration(
color: Colors.black54,
image: DecorationImage(
image: AssetImage('assets/background_image.jpeg'),
fit: BoxFit.cover,
colorFilter: ColorFilter.mode(
Colors.black.withOpacity(0.08), BlendMode.dstATop),
),
),
),
);
}
}
class LoginWidget extends StatelessWidget {
@override
Widget build(BuildContext context) {
final _size = MediaQuery.of(context).size;
final double _height = (_size.height) * 0.40;
final double _width = _height * 0.8;
return Column(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.center,
children: [
Container(
child: Center(
child: Text(
'Login',
style: TextStyle(
color: Colors.white,
fontSize: 26,
fontWeight: FontWeight.bold),
),
),
height: _size.height * 0.085,
width: _width,
decoration: BoxDecoration(
color: Color(0xffB2413A),
borderRadius: BorderRadius.only(
topLeft: Radius.circular(15), topRight: Radius.circular(15)),
),
),
Container(
height: _size.height * 0.38,
width: _width,
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.only(
bottomLeft: Radius.circular(15),
bottomRight: Radius.circular(15)),
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: [
Padding(
padding: const EdgeInsets.all(12.0),
child: TextFieldAlertDialog(),
),
],
),
),
],
);
}
}
class TextFieldAlertDialog extends StatelessWidget {
_displayDialog(BuildContext context) async {
return showDialog(
context: context,
builder: (context) {
return AlertDialog(
titlePadding: EdgeInsets.all(0),
actionsPadding: EdgeInsets.all(0),
buttonPadding: EdgeInsets.all(0),
//TODO: THIS TEXTBUTTON WON'T TAKE THE SIZE OF ITS PARENT //.
actions: <Widget>[
SizedBox(
width: double.infinity,
child: TextButton(
onPressed: () {},
child: Text("Reset Password"),
// style: TextButton.styleFrom(
// textStyle: GoogleFonts.rubik(fontSize: 25),
// primary: Colors.white,
// backgroundColor: Color(0xffB2413A),
// ),
),
),
],
);
},
);
}
@override
Widget build(BuildContext context) {
return Center(
child: TextButton(
child: Text(
'FORGET PASSWORD',
// style: GoogleFonts.rubik(
// color: Colors.black, fontSize: 18, fontWeight: FontWeight.w500),
),
onPressed: () => _displayDialog(context),
),
);
}
}
Any help in solving this problem would be greatly appreciated.
I have added a screenshot of the crash report:
Question:
Upvotes: 0
Views: 943
Reputation: 11
I changed and modified the code, please try it. (Edited)
SizedBox(
width: MediaQuery.of(context).size.width,//full width
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 8.0),//space from both sides
child: TextButton(
onPressed: () {},
child: Text("Reset Password"),
// style: TextButton.styleFrom(
// textStyle: GoogleFonts.rubik(fontSize: 25),
// primary: Colors.white,
// backgroundColor: Color(0xffB2413A),
// ),
),
),
),
[1]: https://i.sstatic.net/AsOWY.png [![Img of Demonstration][1]][1]
Upvotes: 1