I'm using the TextField widget as a text input for my app. The text cursor starts blinking after I tap the TextField and doesn't stop blinking. What I would like to do is have the text cursor blink all the time. How do I have the text cursor start blinking before I even tap/activate it?
You can use autofocus:
TextField(
autofocus : true,
decoration: InputDecoration(
border: OutlineInputBorder(),
labelText: 'Name',
),
)
Whether this text field should focus itself if nothing else is already focused.
If true, the keyboard will open as soon as this text field obtains focus. Otherwise, the keyboard is only shown after the user taps the text field.
Defaults to false. Cannot be null.
Related
I'm getting input to my textfield from barcode scanner so I dont need softkeyboard to open when textfield in focus.To achieve that I tried TextInputType.none it hides the keyboard but also can't receive input from scanner.
TextField(
keyboardType: TextInputType.none,
controller: loginTextController,
focusNode: _loginTextfieldFocus,
decoration: decoration(context,loginTextController),
onChanged: (s){
if(s.contains('\n')||s.contains('\r')){
Log.d("Enter event found");
}
},
),
I also tried SystemChannels.textInput.invokeMethod('TextInput.hide'); but it hides only first time. Whenever a character added in textfield softkeyboard becomes visible.
I implemented a page in my Flutter application that has a text input field and 2 time pickers that are activated by pressing the button to make them appear. The issue is that if I have a new value in the TextInputField and use one of the time pickers, after I'm done what I have typed in the input field will just reset.
Code snippet from the input field:
SizedBox(
width: 350,
child: TextField(
controller: titleController,
decoration: const InputDecoration(
border: OutlineInputBorder(),
hintText: 'Title',
),
onChanged: (value) {
title = value;
},
),
),
I've tried keeping the value of what is being typed in through a titleController and I have also attempted using the onChanged() method and a separate variable to keep the value in there. These solutions both didn't work for me, however. Is there any other solution to this issue?
If your TextField inside a stateless widget it will keep clearing the value of the controller everytime something pop on the screen, so try to put your TextField inside a stateful widget
I started out writing a Flutter app to remotely control some radio stream. I ran into a problem when adding a TextFormField to display the stream's current volume setting. (The reason why I opted for a TextFormField instead of simply Text is that I wanted to use the field for both showing the current setting and letting the user change the current value in one place.)
The problem is the following: When I added the TextFormField (located inside the green bar in the screen shot below, after the text Vol:), I realized that whenever I started this view/page, the onboard keyboard always showed up by default when entering the page.
Instead, I would like the keyboard to only show up when the user clicks inside the TextFormField.
The code for the TextFormField looks as follows:
TextFormField(
onFieldSubmitted: (value){
print("The value entered is : $value");
},
// Define keyboard type
keyboardType: TextInputType.number,
// Make sure user doesn't enter letters or punctuation
inputFormatters: <TextInputFormatter>[WhitelistingTextInputFormatter.digitsOnly],
validator: (val){
return null;
},
autofocus: true,
controller: volTextEditingController,
style: TextStyle(
color: Colors.white,
fontSize: 16,
),
decoration: InputDecoration(
border: InputBorder.none,
),
maxLines: 1,
)
So, I was wondering whether someone knows how to prevent the keyboard from appearing on startup of the shown view/page. Thanks in advance! The full code, if needed, is available on GitGub.
I just figured out that this problem was caused by the setting autofocus: true. So, removing this solves the issue.
I've been scratching my head on this. Perhaps someone can help.
I have a statefull widget with a TextFormField and a button that calls the ImagePicker.pickImage function.
When I write something in the textformInput and then click on the select image button, when the image select returns from the picking, the textformfield has the text before I wrote.
It seems the onChanged function is never called when I press the button, so I cannot update my model variable.
I also tried to listen for focus out event on the textformfield widget but it also doesnt get called.
What am I missing? Any tip would be great.
Thanks
TextFormField(
keyboardType: TextInputType.multiline,
maxLines: 5,
controller: _observationsFieldController,
onChanged: (String value) {
onFieldChanged(_observationsFieldController, value);
widget.user_file.observations = value;
},
decoration: InputDecoration(
contentPadding: EdgeInsets.symmetric(horizontal:10, vertical: 2),
hintText: 'Observations',
suffix: clearSuffix(_observationsFieldController),
),
),
Have you tried using setState()? Since you are updating the state, it might work when you call set state.
I have a form with multiple text fields and would like users to be able to jump to the next input field when tapping "enter" on the on-screen keyboard.
I have been able to make it work by requesting focus for the next field's FocusNode in my field's onFieldSubmitted handler:
new TextFormField(
...
onFieldSubmitted: (newValue) {
...
FocusScope.of(context).requestFocus(
widget.nextNode ?? new FocusNode()
);
}
This works, but you do briefly see the on-screen keyboard close and re-open. Is there a way in Flutter to keep the keyboard on the screen until widget.nextNode becomes null?
Try adding below parameter to TextFormField.
textInputAction: TextInputAction.next,