CurrentNullableIntProperty class

An CurrentProperty with similar characteristics of dart int objects

The underlying value can be null.

If the underlying value of this is null and an arithmetic operator is called on this, it will throw a CurrentPropertyNullValueException.

You can easily check for null by accessing the isNull or isNotNull properties.

When the value of this changes, it will send a CurrentStateChanged event by default. This includes automatically triggering a UI rebuild.

Example

final age = CurrentNullableIntProperty();

if (age.isNull)
{
  print("I'm Null");
}

Other Usages Examples


final age = CurrentNullableIntProperty();

print('${age.add(5)}'); //throws CurrentNullValueException because no value has been set yet.

age(10)

print('${age.subtract(5)}'); //prints 5
Inheritance

Constructors

CurrentNullableIntProperty({int? value, String? propertyName})
CurrentNullableIntProperty.zero({String? propertyName})
Factory constructor for initializing an CurrentNullableIntProperty to zero.
factory

Properties

hashCode → int
The hash code for this object.
no setterinherited
isDirty → bool
Returns true if the value of this CurrentProperty is different from the originalValue.
no setterinherited
isEven → bool
Returns true if the int value is even.
no setter
isNegative → bool
Whether this number is negative.
no setter
isNotNull → bool
Returns true if the value of this CurrentProperty is not null.
no setterinherited
isNull → bool
Returns true if the value of this CurrentProperty is null.
no setterinherited
isOdd → bool
Returns true if the int value is odd
no setter
isPrimitiveType → bool
finalinherited
originalValue → int?
no setterinherited
propertyName ↔ String?
getter/setter pairinherited
registeredBindings → Iterable<CurrentViewModelBinding>
Helper bindings registered directly against this property.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
sourceHashCode → int
finalinherited
value ↔ int?
Returns the current value of this CurrentProperty. Setting the value will update the value of this CurrentProperty and trigger a UI update if the new value is different from the current value. If T is a reference type, setting the value to a new instance of T with the same properties as the current value will still trigger a UI update since the reference has changed.
getter/setter pairinherited
viewModel → CurrentStateViewModel
Returns the instance of the CurrentStateViewModel this property is associated with.
no setterinherited

Methods

abs() → int?
Returns the absolute value of this integer.
add<E extends num>(E other) → E
Adds other to this number.
addNumber(num other) → num
Adds other to this number and returns the numeric result.
call(int? value, {bool notifyChange = true, bool setAsOriginal = false}) → void
Updates the underlying value for this CurrentProperty.
inherited
divide<E extends num>(E other) → double
Divides this number by other.
equals(dynamic other) → bool
Checks if other is equal to the value of this CurrentProperty.
inherited
hasValueChanged(int? currentValue, int? originalValue) → bool
Determines whether the current value differs from the original value.
inherited
mod<E extends num>(E other) → E
Euclidean modulo of this number by other.
modNumber(num other) → num
Returns the modulo of this number by other as a numeric result.
multiply<E extends num>(E other) → E
Multiplies this number by other.
multiplyNumber(num other) → num
Multiplies this number by other and returns the numeric result.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
registerBinding(CurrentViewModelBinding binding) → void
Registers a helper binding against this property.
inherited
reset({bool notifyChange = true}) → void
Resets the value to the originalValue.
inherited
set(int? value, {bool notifyChange = true, bool setAsOriginal = false}) → int?
Updates the property value. Notifies any listeners to the change
inherited
setOriginalValueToCurrent() → void
Updates the original value to what the current value of this property is.
inherited
setViewModel(CurrentStateViewModel viewModel) → void
Links this CurrentProperty instance with an CurrentStateViewModel.
inherited
subtract<E extends num>(E other) → E
Subtracts other from this number.
subtractNumber(num other) → num
Subtracts other from this number and returns the numeric result.
toDouble() → double?
The int value as a double
toNull() → void
Sets the int value to null.
toString() → String
A string representation of this object.
inherited

Operators

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