CartProvider class Data

A CartProvider class that represents a shopping cart for PurchasableFood items.

The CartProvider class is a ChangeNotifier, which means that it can notify its listeners when the contents of the cart are modified by calling notifyListeners. This can be useful for updating the UI in response to changes to the cart.

The CartProvider class maintains a list of PurchasableFood items that have been added to the cart. It provides methods for adding, removing, and clearing items from the cart, as well as checking whether a particular item is already in the cart.

Inheritance

Constructors

CartProvider()

Properties

count → int
Returns the number of PurchasableFood items in the cart.
read-only
hashCode → int
The hash code for this object.
read-onlyinherited
hasListeners → bool
Whether any listeners are currently registered.
read-onlyinherited
items → List<PurchasableFood>
Returns a list of PurchasableFood items that have been added to the cart.
read-only
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited

Methods

add(PurchasableFood foodItem, BuildContext context) → void
Adds a PurchasableFood item to the cart.
addListener(VoidCallback listener) → void
Register a closure to be called when the object changes.
inherited
clear() → void
Clears the cart of all PurchasableFood items.
contains(PurchasableFood foodItem) → bool
Returns true if the cart contains the specified PurchasableFood item, false otherwise.
dispose() → void
Discards any resources used by the object. After this is called, the object is not in a usable state and should be discarded (calls to addListener will throw after the object is disposed).
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notifyListeners() → void
Call all the registered listeners.
inherited
remove(PurchasableFood foodItem) → void
Removes a PurchasableFood item from the cart.
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited