Flutter - 当想要更改初始值时，TextFormField 崩溃应用程序

Question

I want to change my initial value from text form field... when i try to edit my initial value my application gone crash my TextFormField Code~:

TextField(
                          controller: emailController..text = email,
                        ),

my Email COntroller~:

  TextEditingController emailController = TextEditingController();

Answer 1

 emailController.value = TextEditingValue(
      text: email,
      selection: TextSelection.fromPosition(
        TextPosition(offset: email.length),
      ),
    );