Unable to enter decimals via keyboard on Android

[jamiecollinson]

I'm using SpinBox within a component like so:

SpinBox(
  value: _value!.toDouble(),
  min: widget.min,
  max: widget.max,
  step: widget.step,
  decimals: widget.decimals,
  keyboardType: TextInputType.numberWithOptions(decimal: true),
  onChanged: (newValue) {
    setState(() {
      _value = newValue;
    });
    widget.onChanged?.call(newValue);
})

But when I pop the keyboard and enter (e.g.) 6.0 it appears in the spinner as 60 (i.e. the decimal key is ignored) and I have to manually select the decimal part of the number to replace it.

This happens both with and without the manually set keyboardType, which I think shouldn't be necessary as widget.decimals is greater than zero.

Am I missing something obvious? I didn't see anything other than keyboardType in the API docs but apologies if I have!

[jpnurmi]

Does it only happen on Android? Do you have a chance to try the same code on another platform?

I wonder if it has something to do with the system locale. What kind of language/region/input settings does the device or emulator have?

[jamiecollinson]

Haven't tried on iOS as it's an Android specific project (with a bunch of platform code so not easy to try). I can try a demo app on iOS if that would help.

Test device is a physical Nokia 5.3, locale is en-uk (other languages are for testing translations for locales we target):

[jamiecollinson]

(In case it helps also seeing the same on a OnePlus 9 Pro also in en-uk which one of the other developers is using)

[xalikoutis]

Same here both in IOS and Android, i am from Greece el-GR and here we use as decimal , not .

[BenGMiles]

This happens because onChanged is called every time the input is changed (which makes sense, this package listens to the TextController) but as your custom onChanged function updates your value, you end up with a formatted value every time you type on the keyboard. I've created #74 to add an onSubmitted function that you can pass so your value is only updated when you are finished typing.