BoardDateTimeInputField onChanged No trigger

[fenqing168]

Dear author, thank you for your contribution to the flutter ecosystem

I encountered a problem while using it

Problem Reproduction

BoardDateTimeInputField's onChanged will not trigger

BoardDateTimeInputField(
  readOnly: true,
  decoration: InputDecoration(
    labelText: '开始时间',
    hintText: '请输入开始时间',
    border: const OutlineInputBorder(),
  },
  options: const BoardDateTimeOptions(
      languages: BoardPickerLanguages(
          today: '今天',
          tomorrow: '明天',
          yesterday: '昨天',
          now: '现在',
          locale: 'zh'
      ),
      inputable: false,
      useResetButton: true
  ),
  pickerType: DateTimePickerType.date,
  onChanged: (DateTime date) {
    setState(() {
      _form.startTime = date;
    });
  },
),

After looking at the source code, I found that the conditions for onChanged to start are quite strict. Can the conditions be relaxed?

[mytooyo]

@fenqing168
Is it necessary for onChange to trigger a callback with each input?

[fenqing168]

After testing, neither clicking the OK button nor sliding will trigger

[fenqing168]

Because in the BoardDateTimeInputField source code, the condition on line 407 is false, which means that the TextFormField still has focus at this time

[mytooyo]

@fenqing168
In my environment, onChange is being called.
Under what kind of operations is it not being triggered?

[fenqing168]

I changed the implementation method and cannot provide a reproducible environment.