TapGestureRecognizer TapGestureRecognizer Class

Definition

Provides tap gesture recognition and events.

public sealed class TapGestureRecognizer : Xamarin.Forms.GestureRecognizer
type TapGestureRecognizer = class
    inherit GestureRecognizer
Inheritance

Remarks

Can be used to recognize single and multiple tap gestures.

Constructors

TapGestureRecognizer() TapGestureRecognizer()

Initializes a new instance of a TapGestureRecognizer object.

TapGestureRecognizer(Action<View,Object>) TapGestureRecognizer(Action<View,Object>)

Initializes a new instance of a TapGestureRecognizer object with a parameterized callback.

TapGestureRecognizer(Action<View>) TapGestureRecognizer(Action<View>)

Initializes a new instance of a TapGestureRecognizer object with a callback.

Fields

CommandParameterProperty CommandParameterProperty

Identifies the CommandParameter bindable property.

CommandProperty CommandProperty

Identifies the Command bindable property.

NumberOfTapsRequiredProperty NumberOfTapsRequiredProperty

Identifies the NumberOfTapsRequired bindable property.

TappedCallbackParameterProperty TappedCallbackParameterProperty

Identifies the TappedCallbackParameter bindable property.

TappedCallbackProperty TappedCallbackProperty

Identifies the TappedCallback bindable property.

Properties

AutomationId AutomationId

Gets or sets a value that allows the automation framework to find and interact with this element.

(Inherited from Element)
BindingContext BindingContext

Gets or sets object that contains the properties that will be targeted by the bound properties that belong to this BindableObject.

(Inherited from BindableObject)
ClassId ClassId

Gets or sets a value used to identify a collection of semantically similar elements.

(Inherited from Element)
Command Command

The Command to invoke when the gesture has been triggered by the user. This is a bindable property.

CommandParameter CommandParameter

An object to be passed to the TappedCallback. This is a bindable property.

EffectControlProvider EffectControlProvider

For internal use by the Xamarin.Forms platform.

(Inherited from Element)
Effects Effects

A list of the effects that are applied to this item.

(Inherited from Element)
Id Id

Gets a value that can be used to uniquely identify an element through the run of an application.

(Inherited from Element)
LogicalChildren LogicalChildren

For internal use by the Xamarin.Forms platform.

(Inherited from Element)
NumberOfTapsRequired NumberOfTapsRequired

The number of taps required to trigger the callback. This is a bindable property.

Parent Parent

Gets or sets the parent element of the element.

(Inherited from Element)
ParentView ParentView

Gets the element which is the closest ancestor of this element that is a VisualElement.

(Inherited from Element)
Platform Platform

For internal use by the Xamarin.Forms platform.

(Inherited from Element)
RealParent RealParent

For internal use by the Xamarin.Forms platform.

(Inherited from Element)
StyleId StyleId

Gets or sets a user defined value to uniquely identify the element.

(Inherited from Element)
TappedCallback TappedCallback

The action to invoke when the gesture has been triggered by the user. This is a bindable property.

TappedCallbackParameter TappedCallbackParameter

An object to be passed to the TappedCallback. This is a bindable property.

Methods

ApplyBindings() ApplyBindings()

Apply the bindings to BindingContext.

(Inherited from BindableObject)
ClearValue(BindableProperty) ClearValue(BindableProperty)

Clears any value set by SetValue for property.

(Inherited from BindableObject)
ClearValue(BindablePropertyKey) ClearValue(BindablePropertyKey)

Clears any value set by SetValue for the property that is identified by propertyKey.

(Inherited from BindableObject)
Descendants() Descendants()

For internal use by the Xamarin.Forms platform.

(Inherited from Element)
EffectIsAttached(String) EffectIsAttached(String)

For internal use by the Xamarin.Forms platform.

(Inherited from Element)
FindByName(String) FindByName(String)

Returns the element that has the specified name.

(Inherited from Element)
GetValue(BindableProperty) GetValue(BindableProperty)

Returns the value that is contained the BindableProperty.

(Inherited from BindableObject)
GetValues(BindableProperty, BindableProperty) GetValues(BindableProperty, BindableProperty)

For internal use by the Xamarin.Forms platform.

(Inherited from BindableObject)
GetValues(BindableProperty, BindableProperty, BindableProperty) GetValues(BindableProperty, BindableProperty, BindableProperty)

For internal use by the Xamarin.Forms platform.

(Inherited from BindableObject)
IsSet(BindableProperty) IsSet(BindableProperty)

Returns true if the target property exists and has been set.

(Inherited from BindableObject)
OnBindingContextChanged() OnBindingContextChanged()

Invoked whenever the binding context of the element changes. Implement this method to add class handling for this event.

(Inherited from Element)
OnChildAdded(Element) OnChildAdded(Element)

Invoked whenever the ChildAdded event needs to be emitted. Implement this method to add class handling for this event.

(Inherited from Element)
OnChildRemoved(Element) OnChildRemoved(Element)

Invoked whenever the ChildRemoved event needs to be emitted. Implement this method to add class handling for this event.

(Inherited from Element)
OnParentSet() OnParentSet()

Invoked whenever the Parent of an element is set. Implement this method in order to add behavior when the element is added to a parent.

(Inherited from Element)
OnPropertyChanged(String) OnPropertyChanged(String)

Method that is called when a bound property is changed.

(Inherited from Element)
OnPropertyChanging(String) OnPropertyChanging(String)

Call this method from a child class to notify that a change is going to happen on a property.

(Inherited from BindableObject)
RemoveBinding(BindableProperty) RemoveBinding(BindableProperty)

Removes a previously set binding.

(Inherited from BindableObject)
RemoveDynamicResource(BindableProperty) RemoveDynamicResource(BindableProperty)

Removes a previously set dynamic resource

(Inherited from Element)
SendTapped(View) SendTapped(View)

For internal use by the Xamarin.Forms platform.

SetBinding(BindableProperty, BindingBase) SetBinding(BindableProperty, BindingBase)

Assigns a binding to a property.

(Inherited from BindableObject)
SetDynamicResource(BindableProperty, String) SetDynamicResource(BindableProperty, String)

Sets the BindableProperty property of this element to be updated via the DynamicResource with the provided key.

(Inherited from Element)
SetValue(BindableProperty, Object) SetValue(BindableProperty, Object)

Sets the value of the specified property.

(Inherited from BindableObject)
SetValue(BindablePropertyKey, Object) SetValue(BindablePropertyKey, Object)

Sets the value of the propertyKey.

(Inherited from BindableObject)
SetValueCore(BindableProperty, Object, SetValueFlags) SetValueCore(BindableProperty, Object, SetValueFlags)

For internal use by the Xamarin.Forms platform.

(Inherited from BindableObject)
SetValueFromRenderer(BindableProperty, Object) SetValueFromRenderer(BindableProperty, Object)

For internal use by the Xamarin.Forms platform.

(Inherited from Element)
SetValueFromRenderer(BindablePropertyKey, Object) SetValueFromRenderer(BindablePropertyKey, Object)

For internal use by the Xamarin.Forms platform.

(Inherited from Element)
UnapplyBindings() UnapplyBindings()

Unapplies all previously set bindings.

(Inherited from BindableObject)

Events

BindingContextChanged BindingContextChanged

Raised whenever the BindingContext property changes.

(Inherited from BindableObject)
ChildAdded ChildAdded

Occurs whenever a child element is added to the element.

(Inherited from Element)
ChildRemoved ChildRemoved

Occurs whenever a child element is removed from the element.

(Inherited from Element)
DescendantAdded DescendantAdded

Occurs whenever a child element is added to the elements subtree.

(Inherited from Element)
DescendantRemoved DescendantRemoved

Occurs whenever a child element is removed from the elements subtree.

(Inherited from Element)
PlatformSet PlatformSet

For internal use by the Xamarin.Forms platform.

(Inherited from Element)
PropertyChanged PropertyChanged

Raised when a property has changed.

(Inherited from BindableObject)
PropertyChanging PropertyChanging

Raised when a property is about to change.

(Inherited from BindableObject)
Tapped Tapped

Event that is raised when the user taps.

Explicit Interface Implementations

IDynamicResourceHandler.SetDynamicResource(BindableProperty, String) IDynamicResourceHandler.SetDynamicResource(BindableProperty, String)

For internal use by the Xamarin.Forms platform.

(Inherited from BindableObject)
IElementController.SetValueFromRenderer(BindableProperty, Object) IElementController.SetValueFromRenderer(BindableProperty, Object)

For internal use by the Xamarin.Forms platform.

(Inherited from Element)
INameScope.RegisterName(String, Object) INameScope.RegisterName(String, Object)

For internal use only.

(Inherited from Element)

Extension Methods

SetBinding(BindableObject, BindableProperty, String, BindingMode, IValueConverter, String) SetBinding(BindableObject, BindableProperty, String, BindingMode, IValueConverter, String)

Creates and applies a binding to a property.

SetBinding<TSource>(BindableObject, BindableProperty, Expression<Func<TSource,Object>>, BindingMode, IValueConverter, String) SetBinding<TSource>(BindableObject, BindableProperty, Expression<Func<TSource,Object>>, BindingMode, IValueConverter, String)

Creates and applies a binding from an expression.

GetGroup<TView,TItem>(TItem) GetGroup<TView,TItem>(TItem)

For internal use by platform renderers.

GetGroupHeaderContent<TView,TItem>(TItem) GetGroupHeaderContent<TView,TItem>(TItem)

For internal use by platform renderers.

GetIndex<TView,TItem>(TItem) GetIndex<TView,TItem>(TItem)

For internal use by platform renderers.

GetIsGroupHeader<TView,TItem>(TItem) GetIsGroupHeader<TView,TItem>(TItem)

For internal use by platform renderers.

SetIsGroupHeader<TView,TItem>(TItem, Boolean) SetIsGroupHeader<TView,TItem>(TItem, Boolean)

For internal use by platform renderers.

FindByName<T>(Element, String) FindByName<T>(Element, String)

Returns the instance of type T that has name name in the scope that includes element.

LoadFromXaml<TXaml>(TXaml, String) LoadFromXaml<TXaml>(TXaml, String)

Returns an initialized view by loading the specified xaml.

LoadFromXaml<TXaml>(TXaml, Type) LoadFromXaml<TXaml>(TXaml, Type)

Returns a TXaml with the properties that are defined in the application manifest for callingType.

Applies to