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when I do backspacing on a text, and then type again, the typing does not show up in the text field and the backspacing itself doesn't work good. I don't know if the problem is with the flutter itself or what because many people have the same issue.
TextField(
controller: controller,
maxLength: 9,
keyboardType: TextInputType.text,
textCapitalization: TextCapitalization.characters,
onChanged: (text) {
if (7 > pin.length) {
final String newText = _addDashes(text);
controller.text = newText;
controller.selection =
TextSelection.collapsed(offset: newText.length);
}
pin = text;
},
textAlign: TextAlign.left,
// keyboardType: TextInputType.visiblePassword,
decoration: InputDecoration(
errorText: _errorText,
icon: Icon(
Icons.dialpad,
),
labelText: '8-digit PIN',
contentPadding: EdgeInsets.symmetric(vertical: 10.0),
focusedBorder: UnderlineInputBorder(
borderSide:
BorderSide(color: Colors.transparent, width: 2),
),
focusedErrorBorder: UnderlineInputBorder(
borderSide: BorderSide(color: Colors.red, width: 2),
),
errorBorder: UnderlineInputBorder(
borderSide:
BorderSide(color: Color(0xFFF696969), width: 1),
),
),
),
You can change your callback position from OnChnage to custom listener on controller. E.g.
controller.addListener(() {
if (7 > pin.length) {
final String newText = _addDashes(controller.text);
controller.value = _controller.value.copyWith(enter code here
text: newText,
selection: TextSelection.collapsed(offset: newText.length));
}
});
OR You can use same onChange Callback but use custom delayed as follows.
onChanged: (text) {
if (7 > pin.length) {
final String newText = _addDashes(text);
Future.delayed(Duration.zero, () {
controller.text = newText;
controller.selection = TextSelection.collapsed(offset:newText.length);
});
}
pin = text;
}
USING FUTURE DELAYD IN ONCHANGE WORKING FOR ME
this happened to me before and as per research, I found out that using controller and onChanged properties at the same time in a textField is what caused this error. I just can't find the doc where I read it but if I remember correctly, if you use controller, don't use onChanged or 'initialValue' and if some reason you need to use the onChanged or initialValue property, then the controller should be null.
According to the Flutter TextEditingController documentation, you should use a TextInputFormatter instead of editing the value of the TextEditingController using a listener; the issue is similar to that caused by the onChanged callback:
Gboard, for example, will try to restore the composing region of the text if it was modified programmatically, creating an infinite loop of communications between the framework and the input method.
A TextInputFormatter is one way to solve the issue. Others are moving the callback to onSubmitted or to a method that checks whether or not the widget has focus first.
Mask Text Input Formatter
Create Formatter
var maskFormatter = MaskTextInputFormatter(mask: '####-####', filter:
{"#": RegExp(r'[0-9]')}, type: MaskAutoCompletionType.eager);
And add your TextField formatters
TextField(
controller: controller,
maxLength: 9,
keyboardType: TextInputType.text,
textCapitalization: TextCapitalization.characters,
// here ->
inputFormatters: [maskFormatter],
textAlign: TextAlign.left,
// keyboardType: TextInputType.visiblePassword,
decoration: InputDecoration(
errorText: _errorText,
icon: Icon(
Icons.dialpad,
),
labelText: '8-digit PIN',
contentPadding: EdgeInsets.symmetric(vertical: 10.0),
focusedBorder: UnderlineInputBorder(
borderSide:
BorderSide(color: Colors.transparent, width: 2),
),
focusedErrorBorder: UnderlineInputBorder(
borderSide: BorderSide(color: Colors.red, width: 2),
),
errorBorder: UnderlineInputBorder(
borderSide:
BorderSide(color: Color(0xFFF696969), width: 1),
),
),
),
Finally get the data
maskFormatter.getMaskedText();
maskFormatter.getUnmaskedText();
i want to make the text and icon inside TextFormField
this is my code
enter image description here
_FormField() {
return TextFormField(
validator: (value) {
if (value!.isEmpty) {
print("test");
}
},
decoration: InputDecoration(
fillColor: kPrimaryLightColor,
filled: true,
focusColor: kPrimaryLightColor,
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(30),
borderSide: BorderSide.none),
//hintText: 'Email'
//hintStyle: TextStyle(color: Colors.black38),
labelText: 'Email',
labelStyle: TextStyle(color: kPrimaryColor),
//icon: Icon(Icons.email),
icon: Icon(Icons.email_outlined),
),
);
}
i want it like that
enter image description here
You can use prefixIcon and suffixIcon of inputDecoration to add icons inside the field. If you want the field label only within the field and not as a label above it, specify only hintText and leave out LabelText. Check the following code, you can wrap the icons inside a Padding if you need more space.
TextFormField(
validator: (value) {
if (value!.isEmpty) {
print("test");
}
},
decoration: InputDecoration(
prefixIcon: Icon(Icons.email_outlined),
fillColor: Colors.grey,
filled: true,
focusColor: Colors.blue,
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(30),
borderSide: BorderSide.none),
hintText: 'Email',
suffixIcon: Icon(Icons.email_outlined),
),
)
your can use prefixIcon and suffixIcon which takes widget. In which you can give Icon to the prefixIcon and to the suffixIcon you can give IconButton in which you can give the logic to hide/show password. To implement the logic declare a boolean variable which is used for if the password is to be shown or hidden. the logic must be like this.
bool showPassword=false;
_FormField() {
return TextFormField(
obscureText: !showPassword,
validator: (value) {
if (value!.isEmpty) {
print("test");
}
},
decoration: InputDecoration(
suffixIcon:IconButton(icon:showPassword?Icon(Icons.lock):Icon(Icons.lock_open),
onPressed:(){
setState(() {
showPassword=!showPassword;
});
}
)
),
);
}
The code is not formatted well sorry for that I write it manual here 🙏
I am new with flutter.
I am making a user registration form, I want to achieve the following visual effect:
When a TextFormField is normal on the form, it looks like this:
But I want the following, when the textformfield is in "focus". When the user is typing it looks like this:
This is my average textFormField
TextFormField(
initialValue: name,
onChanged: (val) {
setState(() {
name = val;
print(name);
});
},
decoration: InputDecoration(
hintText: "Nombres",
hintStyle: TextStyle(
fontSize: scalador.setSp(22) * 2.63,
color: Color(0xFF949494)),
),
style: TextStyle(
color: Color(0xFF242427),
fontSize: scalador.setSp(22) * 2.63,
),
validator: (value) {
if (value.isEmpty) {
return 'Por favor ingrese su(s) Nombre(s)';
} else {
if (value.length < 4)
return 'El nombre debe tener mas de 4 caracteres';
}
return null;
}),
any ideas?
add labelText: 'Nombres', Property into InputDecoration :
decoration: InputDecoration(
hintText: "Nombres",
hintStyle: TextStyle(
fontSize: scalador.setSp(22) * 2.63,
color: Color(0xFF949494)),
),
labelText: 'Nombres',
)
source :https://api.flutter.dev/flutter/material/TextFormField-class.html
To add the desired textformfield in "focus" detail, you will need to include several things. To begin with, you will need a labelText which will be set to the string of your choice. In your case, it would probably be: labelText: "Nombres". Next, you will need an enabledBorder: which you can assign to OutlineInputBorder(in which you can specify border radius, border Side(color)) to your liking. Once you have the enabledBorder for when the user does not have it in "focus" then you will need focusedBorder: in which again you will assign to OutlineInputBorder() similar to enabledBorder. Lastly, you will need border: in which you can give it OutlineInputBorder(and your desired borderRadius inside).
This is an example for your reference
Padding(
padding: EdgeInsets.all(10),
child: new TextFormField(
decoration: new InputDecoration(
labelText: "Name",
labelStyle: TextStyle(
color: Color(0xFF264653),
),
fillColor: Colors.white,
enabledBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(25.0),
borderSide: BorderSide(
color: Color(0xFF264653),
),
),
focusedBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(25.0),
borderSide: BorderSide(color: Color(0xFF264653))),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(25.0),
),
),
),
),
Depending on what you will be doing, I recommend checking out this article: https://medium.com/swlh/working-with-forms-in-flutter-a176cca9449a and/or
https://medium.com/#mahmudahsan/how-to-create-validate-and-save-form-in-flutter-e80b4d2a70a4
I cant get the textfield labeltext to show. anyone can help? and how do I get the border to always showing and not disappear when I click on the text field.
#override
Widget build(BuildContext context) {
return TextFormField(
controller: _controller,
decoration: InputDecoration(
border: new OutlineInputBorder(
borderSide: new BorderSide(width: 1)
),
// hintText: _hintText,
labelText: "Label Text",
contentPadding: EdgeInsets.only(left: 15),
// suffixText: _nameLength.toString() + "/ " + _maxLength.toString(),
// suffixStyle: TextStyle(fontSize: 12),
// suffixStyle: TextStyle(color: Theme.of(context).textTheme.bodyText2.color),
// counterText: "",
),
maxLines: _maxLines,
textCapitalization: TextCapitalization.sentences,
cursorRadius: Radius.circular(10),
keyboardType: TextInputType.text,
autofocus: true,
maxLength: _showTextCount ? _maxLength : null,
style: TextStyle(color: AppSetting.textColor1),
validator: (val) {
// if (val.isEmpty) {
// return 'Please enter text.';
// }
// return null;
},
onChanged: (val) {
_onChanged(val);
setState(() {
_inputFieldText = val;
_nameLength = _inputFieldText.length;
});
},
onTap: () => AppSetting.hapticFeeback(),
);
}
}
You should add
errorBorder: OutlineInputBorder(
borderSide: BorderSide(
color: Colors.redAccent,
width: 2.0,
),
),
focusedBorder: OutlineInputBorder(
borderSide: BorderSide(
color: primaryColor,
width: 2.0,
),
),
enabledBorder: OutlineInputBorder(
borderSide: BorderSide(
color: Colors.black54,
width: 2.0,
),
),
),
Just make sure the default value of labelColor of the input decoration is different from background (the default label color was white in my case). In order to show border when clicked set focusedBorder property.
I have a custom text field but as shown in the picture, the bottom text fields looks so vague and empty, I'd like to keep the hint showing even if the field is not focused, how do I achieve that in flutter?
here is my widget code:
Container(
margin: EdgeInsets.all(20),
child: TextFormField(
autofocus: true,
textAlign: TextAlign.right,
decoration: InputDecoration(
enabledBorder: const OutlineInputBorder(
borderSide: const BorderSide(color: Color(0xff0E9447), width: 2.0),
),
focusedBorder: const OutlineInputBorder(
borderSide: const BorderSide(color: Color(0xff0E9447), width: 2.0),
),
hintText: AppStrings.email,
labelText: AppStrings.email,
alignLabelWithHint: true,
hintStyle: TextStyle(color: AppColors.primaryColorLight),
),
),
),
If you would like the label to be visible at the top of the TextField, and the hint displayed at the same time you can simply add:
floatingLabelBehavior: FloatingLabelBehavior.always
to the TextFields InputDecoration (decoration).
(At the time of writing this, there is a bug that will only show the hint and suffix upon focus, this has been fixed in a very recent PR and will be available shortly, see GitHub issue)
Full Example
TextFormField(
controller: textController,
style: theme.textTheme.bodyText2,
keyboardType: keyboardType ?? TextInputType.number,
enableInteractiveSelection: false,
decoration: InputDecoration(
labelText: labelText,
labelStyle: theme.textTheme.headline6,
suffixText: suffixText ?? '',
border: OutlineInputBorder(
borderSide:
BorderSide(color: theme.textTheme.bodyText2.color, width: 2),
),
hintText: '0.0',
floatingLabelBehavior: FloatingLabelBehavior.always),
validator: (value) {
if (value.isEmpty) {
return 'Please enter some text';
}
return null;
},
onChanged: (String text) => onChange(text),
);
Ideally in Flutter you cannot do this as both hintText and labelText behave in two different ways. labelText is shown as hintText as long as the user does not focus on it. As soon as the user clicks on the TextField, the labelText animates to a specific position whereas a hintText remains visible until the user types something.
So using labelText and hintText together, does not make any sense as the TextField will wipe of the hintText while animating the label.
However with some extra effort, you can use Stack widget to solve your problem.
Declare a class variable (a variable within the concerned class, outside any block of code) to store a TextEditingController.
TextEditingController _controller;
And initialize in your class' initState(),
_controller= TextEditingController();
Solution Code:
Container(
margin: EdgeInsets.all(20),
child: Stack(
children : <Widget>[
TextFormField(
autofocus: true,
textAlign: TextAlign.right,
decoration: InputDecoration(
enabledBorder: const OutlineInputBorder(
borderSide: const BorderSide(color: Color(0xff0E9447), width: 2.0),
),
focusedBorder: const OutlineInputBorder(
borderSide: const BorderSide(color: Color(0xff0E9447), width: 2.0),
),
labelText: AppStrings.email,
alignLabelWithHint: true,
hintStyle: TextStyle(color: AppColors.primaryColorLight),
),
),
(_controller.text=="")
?
Text(
AppStrings.email,
style: TextStyle(
color: Colors.grey
// Style it according to your requirement / To make it look like hintText
),
)
:
Container();
],
),
),
Basic Logic of the above code: If the TextField does not have any text then display the (hint) Text
widget else don't display anything.
There is a way around this.
Use the labelText property and set floatingLabelBehavior: FloatingLabelBehavior.never.
This way you will always see the hint and when the User clicks on the TextField, it goes away.