How do you make a Horizontal Number Picker Widget in Flutter?

number picker These Number Generators lets you generate many types of different numbers, randomly or in sequence.. I added a NumberPicker to my layout and debugged my app. Now I see that the NumberPicker doesn´t work, I can´t see any + or - button and also when I click on a number on my

number picker, A Number Picker Wheel is an interactive on tool desned to select a random number by spinning a customizable wheel of numbers. The wheel selects a random.