How to get flutter's textfield trigger?

How to get flutter's textfield trigger? - android

i want to change my container's border color when the TextField is on focus. Is in Flutter this thing is ilegal? i've tried several way and it color can't be change when TextField is on focus or loss focus.
open it https://i.postimg.cc/767RT4qW/Screenshot-45.png
here's my container and textfield code:
Container(
decoration: BoxDecoration(
border: Border.all(
color: _myFocusNode.hasFocus
? Colors.black38
: Colors.blue,
width: 2,
),
borderRadius: BorderRadius.circular(8),
),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
const Padding(
padding: EdgeInsets.symmetric(
horizontal: 10,
),
child: Icon(
Icons.alternate_email_rounded,
color: Colors.black38,
),
),
Flexible(
child: TextField(
focusNode: _myFocusNode,
autofocus: true,
style: const TextStyle(
fontSize: 16,
fontWeight: FontWeight.w500,
),
cursorHeight: 24,
cursorColor: Colors.grey,
decoration: const InputDecoration(
border: InputBorder.none,
suffixIcon: SizedBox(
height: 24,
width: 24,
),
hintText: 'Input your email',
hintStyle: TextStyle(
color: Colors.black38,
),
),
),
),
],
),
),
],
),

Try this:
FocusScope(
child: Focus(
onFocusChange: (focus) => print("focus: $focus"),
child: TextField(
decoration: const InputDecoration(labelText: 'City'),
)
)
)

try this
TextFormField(
decoration: InputDecoration(
labelText: "Name",
fillColor: Colors.white,
focusedBorder:OutlineInputBorder(
borderSide: const BorderSide(color: Colors.red, width: 2.0),
borderRadius: BorderRadius.circular(25.0),
),
),
)

Related

Is there a way to fix the teardrops sliders being above the text?

I'm having a weird problem with the sliders of a selected text in a textfield as in the image below, it's only occurring in this screen and not in the rest
The problem image
and this is the code of the Textfield:
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
'Maiden Name :',
style: TextStyle(
fontSize: 16, color: Colors.grey.shade700),
),
Flexible(
child: SizedBox(
width: MediaQuery.of(context).size.width / 2,
height: 30,
child: TextField(
cursorColor: Colors.grey.shade700,
textAlign: TextAlign.center,
style: TextStyle(fontSize: 16),
decoration: new InputDecoration(
hintText:
'As per your official documents',
hintStyle: TextStyle(
color: Colors.grey.shade900,
fontSize: 10,
fontStyle: FontStyle.italic),
isDense: true,
filled: true,
fillColor: Colors.white,
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(5),
borderSide: BorderSide(),
),
focusedBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(5),
borderSide: BorderSide(),
),
),
controller: familyNameController,
),
),
),
],

I've found a solution for the problem,
fixed by adding
contentPadding: EdgeInsets.symmetric(vertical: 5),
to the InputDecoration in the textfield and by removing Flexible widget, so it becomes like this:
Container(
width: MediaQuery.of(context).size.width / 2,
height: 30,
child: TextField(
cursorColor: Colors.grey.shade700,
textAlign: TextAlign.center,
style:
TextStyle(fontSize: 16),
textAlignVertical: TextAlignVertical.center,
decoration: new InputDecoration(
hintText:
'As per your official documents',
hintStyle: TextStyle(
color: Colors.grey.shade900,
fontSize: 10,
fontStyle: FontStyle.italic),
isDense: true,
//focusColor: Colors.black,
filled: true,
fillColor: Colors.white,
contentPadding: EdgeInsets.symmetric(vertical: 5),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(5),
borderSide: BorderSide(),
),
focusedBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(5),
borderSide: BorderSide(),
),
),
controller: surnameController,
),
),

how to resolve BOTTOM OVERFLOWED BY 84 PIXLES in Flutter Activity?

I am new to Flutter I have the following activity, when I click in Text Field Keyboard appears and then the warning e.g. BOTTOM OVERFLOWED BY 84 PIXLES also appears how can i be able to resolve this issue? when I tried SingleChildScrollView then empty area("where there is no Widgets") of activity gone white. Is there any Widget that is missing or i made a mistake in my code?
My Activity
here is my code
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:marshal/Payment.dart';
import 'bottomnavigationbar.dart';
class Payment2 extends StatefulWidget {
#override
_Payment2State createState() => _Payment2State();
}
class _Payment2State extends State<Payment2> {
#override
Widget build(BuildContext context) {
final PaymentButton = Material(
elevation: 5.0,
borderRadius: BorderRadius.circular(30.0),
color: Colors.red,
child: MaterialButton(
minWidth: MediaQuery.of(context).size.width,
padding: EdgeInsets.fromLTRB(20.0, 15.0, 20.0, 15.0),
onPressed: () {
Route route = MaterialPageRoute(builder: (context) => Paymentdone());
Navigator.pushReplacement(context, route);
},
child: Text("Payment",
textAlign: TextAlign.center,
style: style.copyWith(
color: Colors.white, fontWeight: FontWeight.w800)),
),
);
return Scaffold(
appBar: AppBar(
title: Text("Payment"),
centerTitle: true,
),
body: Container(
padding: EdgeInsets.all(16),
color: Colors.black,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
Padding(
padding: EdgeInsets.all(25),
),
Text(
"ENTER YOUR CARD DETAILS",
style: TextStyle(
fontWeight: FontWeight.w400,
color: Colors.white,
fontSize: 16),
),
Padding(
padding: EdgeInsets.all(5),
),
Card(
color: Color(0xFF1E1E1E),
child: ListTile(
leading: CircleAvatar(),
title: Container(
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
Text(
"MasterCard",
style: TextStyle(fontSize: 16, color: Colors.white),
),
Text(
'90 \u0024',
style: TextStyle(fontSize: 16, color: Colors.white),
),
],
),
),
),
),
Padding(
padding: EdgeInsets.all(12),
),
Card(
color: Color(0xFF1E1E1E),
child: cardnumber(),
),
Row(
children: [
Container(
//height: 60,
width: MediaQuery.of(context).size.width * 0.45,
color: Color(0xFF1E1E1E),
child: TextField(
style: style,
maxLength: 5,
cursorColor: Colors.red,
textAlign: TextAlign.left,
keyboardType: TextInputType.number,
decoration: InputDecoration(
hintText: 'MM/YY',
hintStyle: TextStyle(fontSize: 16, color: Colors.white),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(8),
borderSide: BorderSide(
width: 0,
style: BorderStyle.none,
),
),
filled: true,
contentPadding: EdgeInsets.all(16),
),
),
),
Padding(
padding: EdgeInsets.all(1),
),
Container(
// height: 50,
width: MediaQuery.of(context).size.width * 0.44,
color: Color(0xFF1E1E1E),
child: TextField(
style: style,
maxLength: 3,
cursorColor: Colors.red,
textAlign: TextAlign.left,
keyboardType: TextInputType.number,
decoration: InputDecoration(
hintText: 'CVV',
hintStyle: TextStyle(fontSize: 16, color: Colors.white),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(8),
borderSide: BorderSide(
width: 0,
style: BorderStyle.none,
),
),
filled: true,
contentPadding: EdgeInsets.all(16),
),
),
),
],
),
Container(
height: 100,
),
PaymentButton,
],
),
),
bottomNavigationBar: BottomNavigation(),
);
}
Widget cardnumber() {
return TextField(
style: style,
maxLength: 16,
cursorColor: Colors.red,
textAlign: TextAlign.left,
keyboardType: TextInputType.number,
decoration: InputDecoration(
hintText: 'XXXX XXXX XXXX 1234',
hintStyle: TextStyle(fontSize: 16, color: Colors.white),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(8),
borderSide: BorderSide(
width: 0,
style: BorderStyle.none,
),
),
filled: true,
contentPadding: EdgeInsets.all(16),
),
);
}
TextStyle style =
TextStyle(fontFamily: 'Montserrat', color: Colors.white, fontSize: 16.0);
}

using a SingleChildScrollView is the right way to go.
in order to fix the issue you talked about, delete the color attribute from the container, and move it to the scaffold background color attribute:
return Scaffold(
backgroundColor: Colors.black,
appBar: AppBar(
title: Text("Payment"),
centerTitle: true,
),
body: SingleChildScrollView(
child: Container(
padding: EdgeInsets.all(16),
child: Column(
// the rest of the widgets...
),
),
);

Simply add resizeToAvoidBottomInset: false to your Scaffold

Also you can wrap the child inside SingleChildScrollView

Use SingleChildScrollView in body. To avoid white portion problem wrap it inside a Stack.
Stack(
children: <Widget>[
Container(
padding: EdgeInsets.all(16),
color: Colors.black,
),
SingleChildScrollView(
scrollDirection: Axis.vertical,
child: Container(
padding: EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
Padding(
padding: EdgeInsets.all(25),
),
Text(
"ENTER YOUR CARD DETAILS",
style: TextStyle(
fontWeight: FontWeight.w400,
color: Colors.white,
fontSize: 16),
),
Padding(
padding: EdgeInsets.all(5),
),
Card(
color: Color(0xFF1E1E1E),
child: ListTile(
leading: CircleAvatar(),
title: Container(
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
Text(
"MasterCard",
style: TextStyle(fontSize: 16, color: Colors.white),
),
Text(
'90 \u0024',
style: TextStyle(fontSize: 16, color: Colors.white),
),
],
),
),
),
),
Padding(
padding: EdgeInsets.all(12),
),
Card(
color: Color(0xFF1E1E1E),
child: cardnumber(),
),
Row(
children: [
Container(
//height: 60,
width: MediaQuery.of(context).size.width * 0.45,
color: Color(0xFF1E1E1E),
child: TextField(
style: style,
maxLength: 5,
cursorColor: Colors.red,
textAlign: TextAlign.left,
keyboardType: TextInputType.number,
decoration: InputDecoration(
hintText: 'MM/YY',
hintStyle: TextStyle(fontSize: 16, color: Colors.white),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(8),
borderSide: BorderSide(
width: 0,
style: BorderStyle.none,
),
),
filled: true,
contentPadding: EdgeInsets.all(16),
),
),
),
Padding(
padding: EdgeInsets.all(1),
),
Container(
// height: 50,
width: MediaQuery.of(context).size.width * 0.44,
color: Color(0xFF1E1E1E),
child: TextField(
style: style,
maxLength: 3,
cursorColor: Colors.red,
textAlign: TextAlign.left,
keyboardType: TextInputType.number,
decoration: InputDecoration(
hintText: 'CVV',
hintStyle: TextStyle(fontSize: 16, color: Colors.white),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(8),
borderSide: BorderSide(
width: 0,
style: BorderStyle.none,
),
),
filled: true,
contentPadding: EdgeInsets.all(16),
),
),
),
],
),
Container(
height: 100,
),
PaymentButton,
],
),
),
)
],
)

How I do the TextFormField in flutter? Like this

Don't worry about the icon, but the important is the label inside outline border when the TextFormField is focused.
I didn't want it like that:

If I understood your question, you want something like this:
In that case you achieve this by using Container with decoration and a Column that has Text and of course TextFromField, like so:
Container(
padding: EdgeInsets.all(8),
decoration: new BoxDecoration(
border: new Border.all(
color: Colors.black,
width: 1.0,
style: BorderStyle.solid
),
borderRadius: BorderRadius.circular(8.0),
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Text("Label", style: TextStyle(color: Colors.black54),),
TextFormField(
decoration: const InputDecoration(
suffixIcon: Icon(Icons.remove_red_eye),
hintText: "Input text",
// if you want to remove bottom border that changes color when field gains focus
// then uncomment the line bellow
// border: InputBorder.none,
)
)
]
)
)
Not the shortest solution... but it gets the job done.

You can use like this:
Form(
key: _formKey,
child: ListView(
//physics: const NeverScrollableScrollPhysics(),
children: <Widget>[
Center(
child: Text(
'Token',
style: TextStyle(fontSize: 36, fontWeight: FontWeight.w300),
),
),
Container(
height: 40,
),
TextFormField(
style: textStyle,
controller: authControllername,
// ignore: missing_return
validator: (String value) {
if (value.isEmpty) {
return 'Please enter name';
}
},
decoration: InputDecoration(
labelText: 'Name',
hintText: 'Enter name',
labelStyle: textStyle,
errorStyle: TextStyle(color: Colors.red, fontSize: 14.0),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(5.0))),
),
Container(
height: 20,
),
TextFormField(
style: textStyle,
controller: authController,
validator: (String value) {
if (value.isEmpty) {
return 'Please enter OAuth token';
}
},
decoration: InputDecoration(
labelText: 'OAuth token',
hintText: 'Enter OAuth token',
labelStyle: textStyle,
errorStyle: TextStyle(color: Colors.red, fontSize: 14.0),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(5.0))),
),
],
),
),

Bottom oveflowed by 82 pixels in flutter

I am getting bottom overflowed by 82 pixels exception in bottom of the sign up screen. tried with resizeToAvoidBottomPadding: false but it is not working. i am integrating flutter module into existing android app. calling flutter inside an activity. based on screen height it is covering Button or Text. and sometimes it is showing bottom overflowed by 7 pixels. it is changing based on screen height.
Here is the code:
#override
Widget build(BuildContext context) {
// TODO: implement build
return Scaffold(
//resizeToAvoidBottomPadding : false,
key: _scaffoldKey,
body: SingleChildScrollView(
child: SafeArea(
child: Container(
height: SizeConfig.blockSizeVertical * 100,
width: SizeConfig.blockSizeHorizontal * 100,
decoration: BoxDecoration(
color: Color(0xffF44336)
),
child:Stack(
children: <Widget>[
Hero(
tag: 'signupTag',
child: Container(
height: SizeConfig.blockSizeVertical * 30,
width: SizeConfig.blockSizeHorizontal * 100,
alignment: Alignment.center,
child: Text('Sign up', style: TextStyle(fontFamily:'Montserrat', fontSize: 50.0, color: Colors.white))
),
),
Positioned(
bottom: 0.0,
child: Container(
padding: EdgeInsets.only(top:70.0, left: 50.0, right:50.0),
height: SizeConfig.blockSizeVertical * 75,
width: SizeConfig.blockSizeHorizontal * 100,
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.only(topLeft: Radius.circular(45.0), topRight: Radius.circular(45.0))
),
child: Column(
children: <Widget>[
Container(
alignment: Alignment.centerLeft,
child:Text('Welcome', style:TextStyle(fontSize:30.0, fontWeight: FontWeight.bold, fontFamily: 'Montserrat', color: Color(0xff424242)),),
),
Container(
margin: EdgeInsets.only(bottom:20.0),
alignment: Alignment.centerLeft,
child:Text('Create an account to continue', style:TextStyle(fontSize:16.0, fontWeight: FontWeight.bold, fontFamily: 'Montserrat', color: Color(0xff707475)),),
),
TextField(
controller: nameController,
style: TextStyle(fontSize:17.0),
decoration: InputDecoration(
contentPadding: EdgeInsets.fromLTRB(0.0, 15.0, 0.0, 15.0),
hintText: "Full Name",
focusedBorder: UnderlineInputBorder(
borderSide: BorderSide(color: Color(0xffff992b), width: 2.0)
)
),
),
SizedBox(
height: 25.0,
),
TextField(
controller: emailController,
style: TextStyle(fontSize:17.0),
decoration: InputDecoration(
contentPadding: EdgeInsets.fromLTRB(0.0, 15.0, 0.0, 15.0),
hintText: "Email",
focusedBorder: UnderlineInputBorder(
borderSide: BorderSide(color: Color(0xffff992b), width: 2.0)
)
),
),
SizedBox(
height: 25.0,
),
TextField(
obscureText: true,
controller: passwordController,
style: TextStyle(fontSize:17.0),
autocorrect: false,
decoration: InputDecoration(
contentPadding: EdgeInsets.fromLTRB(0.0, 15.0, 0.0, 15.0),
hintText: "Password",
focusedBorder: UnderlineInputBorder(
borderSide: BorderSide(color: Color(0xffff992b), width: 2.0)
)
),
),
SizedBox(
height: 40.0,
),
Stack(
children: <Widget>[
Positioned.fill(
child: Container(
margin: EdgeInsets.symmetric(horizontal: 20.0),
decoration: BoxDecoration(
borderRadius: BorderRadius.all(Radius.circular(32.0)),
boxShadow: [
BoxShadow(
offset: Offset(0.0, 15.0),
blurRadius: 15.0,
color: Color(0xffBDBDBD),
spreadRadius: 2.0
)
]
)
)
),
Material(
// elevation: 5.0,
borderRadius: BorderRadius.circular(30.0),
color: Color(0xffF44336),
child: MaterialButton(
minWidth: MediaQuery.of(context).size.width,
padding: EdgeInsets.all(20.0),
onPressed: () {
signup().then((res){
if(res['status'] == 'Success'){
Navigator.push(
context,
MaterialPageRoute(builder: (context) => LoginPage()),
);
} else {
_displaySnackBar(context, res['comments']);
}
});
},
child: Text("CREATE",
textAlign: TextAlign.center,
style: TextStyle(color: Colors.white, fontSize:15.0, letterSpacing: 1.5),
)
),
),
],
),
SizedBox(
height: 30.0,
),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text("Already have an account?", style:TextStyle(fontSize: 16.0)),
Hero(
tag: 'loginTag',
child:FlatButton(
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(builder: (context) => LoginPage()),
);
},
child: Text('Sign in', style:TextStyle(fontSize: 18.0, color: Color(0xffF44336)))
)
)
],
)
],
)
),
)
],
)
)
)
)
);
}
}

The hierarchy should be :
body: SafeArea
- SingleChildScrollView
-Container(remove height)

How to align text of TextFormField to center, vertical in Flutter?

I am new to Flutter Development & tried certain work around but nothing really helped. I want my text to be center vertically in TextFormField in flutter.
textAlign: TextAlign.start brings my text to left but I want them to be center vertically also.
textAlign: TextAlign.center brings my text to center but I want them to be start from left also.
This is what I am getting,
This is what I want,
Snippet of my code:
#override
Widget build(BuildContext context) {
return new Form(
key: _formKey,
child: new SingleChildScrollView(
child: new Theme(
data: new ThemeData(
primaryColor: const Color(0xFF102739),
accentColor: const Color(0xFF102739),
hintColor: const Color(0xFF102739)),
child: new Column(
children: <Widget>[
new TextFormField(
textAlign: TextAlign.center,
maxLines: 1,
autofocus: true,
keyboardType: TextInputType.emailAddress,
style: new TextStyle(
color: const Color(0xFF0f2638),
fontFamily: 'ProximaNova',
fontStyle: FontStyle.italic,
fontSize: 16.0),
decoration: new InputDecoration(
contentPadding: const EdgeInsets.only(
top: 8.0, bottom: 8.0, left: 10.0, right: 10.0),
hintText: "YOUR E-MAIL",
hintStyle: new TextStyle(
color: const Color(0x703D444E),
fontFamily: 'ProximaNova',
fontStyle: FontStyle.italic,
fontSize: 16.0),
border: new UnderlineInputBorder(
borderSide: new BorderSide(
color: const Color(0xFF0f2638), width: 0.2))),
validator: _validateEmail,
),
],
),
)));
}

There is no vertical align option for that. All you need to do is to set contentPadding for positioning:
TextFormField(
decoration: InputDecoration(
contentPadding: EdgeInsets.zero
)
Screenshot

Use the following property:
TextFormField(
textAlignVertical: TextAlignVertical.center,
//Remaining code.
),

The way I did it using "alignment: Alignment.center," for Container with "InputDecoration.collapsed" & ".copyWith(isDense: true)":
Scaffold(
body: Container(
color: Colors.white,
width: double.infinity,
height: double.infinity,
child: Center(
child: Padding(
padding: EdgeInsets.symmetric(horizontal: 16.0),
child: Container(
height: 50.0,
alignment: Alignment.center,
color: Colors.greenAccent,
child: TextFormField(
cursorColor: Colors.red,
decoration: InputDecoration.collapsed(
hintText: 'Search',
).copyWith(isDense: true),
),
),
),
),
),
),

So it worked perfecly for me:
TextFormField(
// setting text alignment
textAlignVertical: TextAlignVertical.center,
decoration: InputDecoration(
// decorating and styling your Text
isCollapsed: true,
contentPadding: EdgeInsets.zero,
),
),

TextFormField(
textAlign: TextAlign.center,
)

You can use decoration attribute like this:
decoration: InputDecoration(
isCollapsed: true,
isDense: true,
contentPadding: EdgeInsets.symmetric(horizontal: 5),
),

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

How to get flutter's textfield trigger? - android

Try this: FocusScope( child: Focus( onFocusChange: (focus) => print("focus: $focus"), child: TextField( decoration: const InputDecoration(labelText: 'City'), ) ) )

try this TextFormField( decoration: InputDecoration( labelText: "Name", fillColor: Colors.white, focusedBorder:OutlineInputBorder( borderSide: const BorderSide(color: Colors.red, width: 2.0), borderRadius: BorderRadius.circular(25.0), ), ), )

Related

Is there a way to fix the teardrops sliders being above the text?

how to resolve BOTTOM OVERFLOWED BY 84 PIXLES in Flutter Activity?

How I do the TextFormField in flutter? Like this

Bottom oveflowed by 82 pixels in flutter

How to align text of TextFormField to center, vertical in Flutter?

Categories

Resources