Error: No named parameter with the name 'controller'-CodePudding

I am trying running a code in Android Studio, but always I run the code, get this error:

Error: No named parameter with the name 'controller'.

TextEditingController nota1Controller = TextEditingController();

nota1Controller.text = "";

double nota1 = double.parse(nota1Controller.text);

TextField(
  keyboardType: TextInputType.number,
  decoration: InputDecoration(
    labelText: "Nota 1",
    labelStyle: TextStyle(color: Colors.green),
    controller: nota1Controller,// <-- HERE IT'S THE "CONTROLLER"
  ),
  textAlign: TextAlign.center,
  style: TextStyle(color: Colors.green, fontSize: 25.0),
),

I navigate in a lot of sites, but I can't find a solution

CodePudding user response：

You are putting the controller inside the decoration, simply put it outside it:

change this:

  TextField(
  keyboardType: TextInputType.number,
  decoration: InputDecoration(
    labelText: "Nota 1",
    labelStyle: TextStyle(color: Colors.green),
    controller: nota1Controller, <-- HERE IT'S THE "CONTROLLER"
  ),
  textAlign: TextAlign.center,
  style: TextStyle(color: Colors.green, fontSize: 25.0),
),

to this :

    TextField(
 controller: nota1Controller,
  keyboardType: TextInputType.number,
  decoration: InputDecoration(
    labelText: "Nota 1",
    labelStyle: TextStyle(color: Colors.green),
   
  ),
  textAlign: TextAlign.center,
  style: TextStyle(color: Colors.green, fontSize: 25.0),
),

CodePudding user response：

You should assign controller directly to the TextField.

Eg:

TextField(
      controller: nota1Controller,//<-- HERE IT'S THE "CONTROLLER"
keyboardType: TextInputType.number,
  decoration: InputDecoration(
    labelText: "Nota 1",
    labelStyle: TextStyle(color: Colors.green),
  ),
  textAlign: TextAlign.center,
  style: TextStyle(color: Colors.green, fontSize: 25.0),
    ),