CABasicAnimation Class
Definition
Important
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Single keyframe based animations.
[Foundation.Register("CABasicAnimation", true)]
public class CABasicAnimation : CoreAnimation.CAPropertyAnimationtype CABasicAnimation = class
inherit CAPropertyAnimation- Inheritance
- Derived
- Attributes
Remarks
The animation is created by calling the FromKeyPath(String) method and providing a keyPath that identifies the property on the target that will be animated. The animation is performed by using the values on the From, To and By properties applied to the keyPath.
The interpolation will depend on the values that you choose to set for From, To and By. The following table shows the effects of setting one or more of those properites on the property referenced by the key path:
| Settings | Result |
|---|---|
| No values are set | Interpolates between old value and new value in the presentation layer. |
| From is set | Interpolation is done from the From value to the current value in the presentation layer. |
| To is set | Interpolation is done from the current value in the presentation layer to the To value. |
| By is set | Interpolation is done between the current value on the presentation layer to the current value plus the value in By. |
| From and To are set | Interpolation is done between the From and To values. |
| From and By are set | Interpolation is done between the value set in From to From plus By. |
| To and By are set | Interpolation is done between To minus By and By. |
The From, To and By properties all take NSObject parameters. If you need to specify other parameters, like a CGColor, you can use the methods that take INativeObject parameters (GetByAs, GetFromAs, GetToAs, SetBy, SetFrom, SetTo).
For example, the following will animate the "radius" property for three seconds, from its current value, to the value 120 and will repeat this ten times.
var radiusAnimation = CABasicAnimation.FromKeyPath ("radius");
radiusAnimation.Duration = 3;
radiusAnimation.To = NSNumber.FromDouble (120);
radiusAnimation.RepeatCount = 10;
The above works to set the “To” property to an NSObject, in this case the number 120. If you want to set this for other kinds of objects, you can use the SetTo method, for example, the following sets the target color to a CGColor:
var radiusAnimation = CABasicAnimation.FromKeyPath ("shadowColor");
radiusAnimation.Duration = 3;
radiusAnimation.SetTo (UIColor.Red.CGColor);
radiusAnimation.RepeatCount = 10;
Constructors
| CABasicAnimation() |
Default constructor that initializes a new instance of this class with no parameters. |
| CABasicAnimation(IntPtr) |
A constructor used when creating managed representations of unmanaged objects; Called by the runtime. |
| CABasicAnimation(NSCoder) |
A constructor that initializes the object from the data stored in the unarchiver object. |
| CABasicAnimation(NSObjectFlag) |
Constructor to call on derived classes to skip initialization and merely allocate the object. |
Properties
| Additive | (Inherited from CAPropertyAnimation) |
| AnimationEvents | (Inherited from CAAnimation) |
| AutoReverses |
When the animation completes, this determines if the animation will automatically reverse . (Inherited from CAAnimation) |
| BeginTime |
The begin time of the animation, in seconds, relative to its parent (if applicable). (Inherited from CAAnimation) |
| By |
Value to increment by. |
| Class | (Inherited from NSObject) |
| ClassHandle |
The handle for this class. |
| Cumulative | (Inherited from CAPropertyAnimation) |
| DebugDescription |
A developer-meaningful description of this object. (Inherited from NSObject) |
| Delegate |
An instance of the CoreAnimation.CAAnimationDelegate model class which acts as the class delegate. (Inherited from CAAnimation) |
| Description |
Description of the object, the Objective-C version of ToString. (Inherited from NSObject) |
| Duration |
Duration in seconds for this animation. (Inherited from CAAnimation) |
| FadeInDuration | (Inherited from CAAnimation) |
| FadeOutDuration | (Inherited from CAAnimation) |
| FillMode |
The FillMode for this animation, use the CAFillMode constants as the values for this property. (Inherited from CAAnimation) |
| From |
Initial value for the property to animate. |
| Handle |
Handle (pointer) to the unmanaged object representation. (Inherited from NSObject) |
| IsDirectBinding | (Inherited from NSObject) |
| IsProxy | (Inherited from NSObject) |
| KeyPath | (Inherited from CAPropertyAnimation) |
| RemovedOnCompletion |
Whether the animation is removed from the layer on completion. (Inherited from CAAnimation) |
| RepeatCount |
Number of times to repeat the animation. (Inherited from CAAnimation) |
| RepeatDuration |
The number of seconds that the animation will repeat for. (Inherited from CAAnimation) |
| RetainCount |
Returns the current Objective-C retain count for the object. (Inherited from NSObject) |
| Self | (Inherited from NSObject) |
| Speed |
The speed scale applied to this animation. A value of 2.0 will make animations run twice as fast as the parent animations. (Inherited from CAAnimation) |
| Superclass | (Inherited from NSObject) |
| SuperHandle |
Handle used to represent the methods in the base class for this NSObject. (Inherited from NSObject) |
| TimeOffset |
Extra time offset in the local time. (Inherited from CAAnimation) |
| TimingFunction |
The timing function used to compute the animation. (Inherited from CAAnimation) |
| To |
Destination value for the property to animate. |
| UsesSceneTimeBase | (Inherited from CAAnimation) |
| ValueFunction | (Inherited from CAPropertyAnimation) |
| WeakDelegate |
An object that can respond to the delegate protocol for this type (Inherited from CAAnimation) |
| Zone | (Inherited from NSObject) |
Methods
| AddObserver(NSObject, NSString, NSKeyValueObservingOptions, IntPtr) |
Registers an object for being observed externally (using NSString keyPath). Observed changes are dispatched to the observer’s object ObserveValue(NSString, NSObject, NSDictionary, IntPtr) method. (Inherited from NSObject) |
| AddObserver(NSObject, String, NSKeyValueObservingOptions, IntPtr) |
Registers an object for being observed externally (using string keyPath). Observed changes are dispatched to the observer’s object ObserveValue(NSString, NSObject, NSDictionary, IntPtr) method. (Inherited from NSObject) |
| AddObserver(NSString, NSKeyValueObservingOptions, Action<NSObservedChange>) |
Registers an object for being observed externally using an arbitrary method. (Inherited from NSObject) |
| AddObserver(String, NSKeyValueObservingOptions, Action<NSObservedChange>) |
Registers an object for being observed externally using an arbitrary method. (Inherited from NSObject) |
| AwakeFromNib() |
Called after the object has been loaded from the nib file. Overriders must call base.AwakeFromNib(). (Inherited from NSObject) |
| BeginInvokeOnMainThread(Action) | (Inherited from NSObject) |
| BeginInvokeOnMainThread(Selector, NSObject) |
Invokes asynchrously the specified code on the main UI thread. (Inherited from NSObject) |
| Bind(NSString, NSObject, String, NSDictionary) | (Inherited from NSObject) |
| Bind(String, NSObject, String, NSDictionary) |
Obsolete.
(Inherited from NSObject)
|
| BindingInfo(String) |
Obsolete.
(Inherited from NSObject)
|
| BindingOptionDescriptions(String) |
Obsolete.
(Inherited from NSObject)
|
| BindingValueClass(String) |
Obsolete.
(Inherited from NSObject)
|
| CommitEditing() | (Inherited from NSObject) |
| CommitEditing(NSObject, Selector, IntPtr) | (Inherited from NSObject) |
| ConformsToProtocol(IntPtr) |
Invoked to determine if this object implements the specified protocol. (Inherited from NSObject) |
| Copy() |
Performs a copy of the underlying Objective-C object. (Inherited from NSObject) |
| Copy(NSZone) |
Performs a copy of the underlying Objective-C object. (Inherited from CAAnimation) |
| DangerousAutorelease() | (Inherited from NSObject) |
| DangerousRelease() | (Inherited from NSObject) |
| DangerousRetain() | (Inherited from NSObject) |
| DidChange(NSKeyValueChange, NSIndexSet, NSString) |
Indicates a change occurred to the indexes for a to-many relationship. (Inherited from NSObject) |
| DidChange(NSString, NSKeyValueSetMutationKind, NSSet) | (Inherited from NSObject) |
| DidChangeValue(String) |
Indicates that a change occurred on the specified key. (Inherited from NSObject) |
| DidChangeValueForKey(String) |
As part of key-value observing, indicates that the value represented by |
| Dispose() |
Releases the resources used by the NSObject object. (Inherited from NSObject) |
| Dispose(Boolean) |
Releases the resources used by the NSObject object. (Inherited from NSObject) |
| DoesNotRecognizeSelector(Selector) |
Indicates that this object does not recognize the specified selector. (Inherited from NSObject) |
| EncodeTo(NSCoder) |
Encodes the state of the object on the provided encoder (Inherited from CAAnimation) |
| Equals(NSObject) | (Inherited from NSObject) |
| Equals(Object) | (Inherited from NSObject) |
| ExposedBindings() | (Inherited from NSObject) |
| FromKeyPath(String) |
Creates an animation from the given key path. |
| GetBindingInfo(NSString) | (Inherited from NSObject) |
| GetBindingOptionDescriptions(NSString) | (Inherited from NSObject) |
| GetBindingValueClass(NSString) | (Inherited from NSObject) |
| GetByAs<T>() |
Returns the value to increment by, returned as an object of the specified type. |
| GetDictionaryOfValuesFromKeys(NSString[]) |
Retrieves the values of the specified keys. (Inherited from NSObject) |
| GetFromAs<T>() |
Returns the initial value for the property to animate, returned as an object of the specified type. |
| GetHashCode() |
Generates a hash code for the current instance. (Inherited from NSObject) |
| GetMethodForSelector(Selector) | (Inherited from NSObject) |
| GetNativeField(String) |
Obsolete.
(Inherited from NSObject)
|
| GetNativeHash() | (Inherited from NSObject) |
| GetToAs<T>() |
Returns the destination value for the property to animate, returned as an object of the specified type. |
| Init() | (Inherited from NSObject) |
| InitializeHandle(IntPtr) | (Inherited from NSObject) |
| InitializeHandle(IntPtr, String) | (Inherited from NSObject) |
| Invoke(Action, Double) | (Inherited from NSObject) |
| Invoke(Action, TimeSpan) | (Inherited from NSObject) |
| InvokeOnMainThread(Action) | (Inherited from NSObject) |
| InvokeOnMainThread(Selector, NSObject) |
Invokes synchrously the specified code on the main UI thread. (Inherited from NSObject) |
| IsEqual(NSObject) | (Inherited from NSObject) |
| IsKindOfClass(Class) | (Inherited from NSObject) |
| IsMemberOfClass(Class) | (Inherited from NSObject) |
| MarkDirty() |
Promotes a regular peer object (IsDirectBinding is true) into a toggleref object. (Inherited from NSObject) |
| MutableCopy() |
Creates a mutable copy of the specified NSObject. (Inherited from NSObject) |
| MutableCopy(NSZone) |
Performs a copy of the underlying Objective-C object. (Inherited from CAAnimation) |
| ObjectDidEndEditing(NSObject) | (Inherited from NSObject) |
| ObserveValue(NSString, NSObject, NSDictionary, IntPtr) |
Indicates that the value at the specified keyPath relative to this object has changed. (Inherited from NSObject) |
| PerformSelector(Selector) | (Inherited from NSObject) |
| PerformSelector(Selector, NSObject) | (Inherited from NSObject) |
| PerformSelector(Selector, NSObject, Double) |
Invokes the selector on the current instance and if the |
| PerformSelector(Selector, NSObject, Double, NSString[]) | (Inherited from NSObject) |
| PerformSelector(Selector, NSObject, NSObject) | (Inherited from NSObject) |
| PerformSelector(Selector, NSThread, NSObject, Boolean) | (Inherited from NSObject) |
| PerformSelector(Selector, NSThread, NSObject, Boolean, NSString[]) | (Inherited from NSObject) |
| PrepareForInterfaceBuilder() | (Inherited from NSObject) |
| RemoveObserver(NSObject, NSString) |
Stops the specified observer from receiving further notifications of changed values for the specified keyPath. (Inherited from NSObject) |
| RemoveObserver(NSObject, NSString, IntPtr) |
Stops the specified observer from receiving further notifications of changed values for the specified keyPath and context. (Inherited from NSObject) |
| RemoveObserver(NSObject, String) |
Stops the specified observer from receiving further notifications of changed values for the specified keyPath. (Inherited from NSObject) |
| RemoveObserver(NSObject, String, IntPtr) |
Stops the specified observer from receiving further notifications of changed values for the specified keyPath and context. (Inherited from NSObject) |
| RespondsToSelector(Selector) |
Whether this object recognizes the specified selector. (Inherited from NSObject) |
| RunAction(String, NSObject, NSDictionary) | (Inherited from CAAnimation) |
| SetBy(INativeObject) |
Sets the value to increment by, by using a non-NSObject type. |
| SetFrom(INativeObject) |
Sets the value for the initial value of the property to animate, by using a non-NSObject type. |
| SetNativeField(String, NSObject) |
Obsolete.
(Inherited from NSObject)
|
| SetNilValueForKey(NSString) |
Sets the value of the specified key to null. (Inherited from NSObject) |
| SetTo(INativeObject) |
Destination value for the property to animate (using INativeObject). |
| SetValueForKey(NSObject, NSString) |
Sets the value of the property specified by the key to the specified value. (Inherited from NSObject) |
| SetValueForKeyPath(IntPtr, NSString) |
A constructor used when creating managed representations of unmanaged objects; Called by the runtime. (Inherited from NSObject) |
| SetValueForKeyPath(NSObject, NSString) |
Sets the value of a property that can be reached using a keypath. (Inherited from NSObject) |
| SetValueForUndefinedKey(NSObject, NSString) |
Indicates an attempt to write a value to an undefined key. If not overridden, raises an NSUndefinedKeyException. (Inherited from NSObject) |
| SetValuesForKeysWithDictionary(NSDictionary) |
Sets the values of this NSObject to those in the specified dictionary. (Inherited from NSObject) |
| ShouldArchiveValueForKey(String) |
Whether the value for the given key should be archived. (Inherited from CAAnimation) |
| ToString() |
Returns a string representation of the value of the current instance. (Inherited from NSObject) |
| Unbind(NSString) | (Inherited from NSObject) |
| Unbind(String) |
Obsolete.
(Inherited from NSObject)
|
| ValueForKey(NSString) |
Returns the value of the property associated with the specified key. (Inherited from NSObject) |
| ValueForKeyPath(NSString) |
Returns the value of a property that can be reached using a keypath. (Inherited from NSObject) |
| ValueForUndefinedKey(NSString) |
Indicates an attempt to read a value of an undefined key. If not overridden, raises an NSUndefinedKeyException. (Inherited from NSObject) |
| WillChange(NSKeyValueChange, NSIndexSet, NSString) |
Indicates that the values of the specified indices in the specified key are about to change. (Inherited from NSObject) |
| WillChange(NSString, NSKeyValueSetMutationKind, NSSet) | (Inherited from NSObject) |
| WillChangeValue(String) |
Indicates that the value of the specified key is about to change. (Inherited from NSObject) |
| WillChangeValueForKey(String) |
With key-value observing, indicates that the value associated with |
Events
| AnimationStarted |
Event raised by the object. (Inherited from CAAnimation) |
| AnimationStopped |
Event raised by the object. (Inherited from CAAnimation) |