I need to change textfield border color while changing characters based on email or phone validation.
For Example :
When typing an incomplete email at the time border color is set to RED, after completing typing the email at that time border color is set to WHITE.
Set the Red color of the border when textfiled character length is less than 10 at ongoing typing AND set the WHITE color when the character length is rich to 10.
Quick words: change border color while changing character using Getx, Bloc, Provider etc...
I have Try it Normal way, but have try it using BLOC State Management this video on You Tube in my Project its to please refer this Video its very helpful to you
E-mail Validation function
Your Widget Using TextFormField:
Variable Declaration
Dispose Method:
Your Widget Using TextField: