Flutter 消费者不使用 riverpod StateNotifierProvider 重建 UI

Question

Its my 1st time using riverpod and for practice purposes, I'm making to-do app. I'm using StateNotifierProvider and it's not updating the ListViewBuilder but updating the length of items but not showing that item. Please Guide me, Here is the SC of StateNotifier

and here is the calling method to call add method here is the SC

and here is the UI UPDATING THE NUMBERS OF items but not updating the list.

Answer 1

Modify addTask method like this.

void addTask(String newTask)
{
  state=[...state,TaskModel(name: newTask)];
}

For more information check official documentation for StateNotifierProvider here

Answer 2

I solved my issue:

  void addtask(String? newtask) {
final task = TaskModel(name: newtask!);
state = [...state, task];

}