shivanshtalwar0/material_dropdown_formfield

Hi there 👋

• 🔭 I’m currently working on flutter_janus_client,janusjs,januscaler etc.
• 🌱 I’m currently learning golang,flutter,webrtc
• 💬 Ask me about flutter and webrtc or web development in general

material_dropdown_formfield's Issues

Received initial value not getting set-> validator says it's null

Hello, and thank you for this awesome widget.
I think I have found a bug in it's functionality. The moment i received a value from a provider, it is getting set, it shows on the screen, but when i call the validate method it the value is null.

I think I know why this is happening. It is because the widget if it gets an initial value should also call onChange method.
I think that this issue is handled by the developer of dropdown_formfield by adding it as a field that you can add.
If there is anymore help i can provide, please do ask.

If the initial value is received from a provider the value is null

• The value is set using setState and it shows up on the screen, but when _formKey.currentState.validate() si triggered the value in validator:(value){} is null.

The checking of value should be: if(value==null || value=='') return 'This field is required';
If the widget receives a new value it should call setState on it's new value and handle it internal so that the value that the validator receives is not null.

I will try to research this and help you, but in the mean time this is still an issue.

The problem seems to be here:

value: value == '' ? null : value,
  onChanged: (dynamic newValue) {
                                state.didChange(newValue);
                                validator(newValue);
                                onChanged(newValue);
                              },

At first the value is '' but after I set the value to something it becomes 'something' but the onChangeMethod is not triggered with the newValue.
We have to find a way to force that trigger.