Class Layer

Definition

Namespace:

Tizen.NUI

Assembly:

Tizen.NUI.dll

Layers provide a mechanism for overlaying groups of actors on top of each other.

public class Layer : Container, INotifyPropertyChanged, IDisposable

Inheritance

object

BindableObject

Tizen.NUI.Binding.Element

BaseHandle

Animatable

Container

Layer

Implements

System.ComponentModel.INotifyPropertyChanged

System.IDisposable

Constructors

Layer()

Default constructor of Layer class to create a Layer object.

Declaration

public Layer()

Properties

Behavior

Layer behavior, type String (Layer.LayerBehavior).

Declaration

public Layer.LayerBehavior Behavior { get; set; }

Property Value

Type	Description
Layer.LayerBehavior

ChildCount

Get the number of children held by the layer.

Declaration

public uint ChildCount { get; }

Property Value

Type	Description
uint

Depth

Queries the depth of the layer.
0 is the bottommost layer, higher number is on the top.

Declaration

public uint Depth { get; }

Property Value

Type	Description
uint

Name

Gets or sets the layer's name.

Declaration

public string Name { get; set; }

Property Value

Type	Description
string

Opacity

Retrieves and sets the layer's opacity.

Declaration

public float Opacity { get; set; }

Property Value

Type	Description
float

Viewport

Sets the viewport (in window coordinates), type rectangle. The contents of the layer will not be visible outside this box, when ViewportEnabled is true.

Declaration

public Rectangle Viewport { get; set; }

Property Value

Type	Description
Rectangle

Visibility

Retrieves and sets the layer's visibility.

Declaration

public bool Visibility { get; set; }

Property Value

Type	Description
bool

Methods

Add(View)

Adds a child view to this layer.

Declaration

public override void Add(View child)

Parameters

Type	Name	Description
View	child

Overrides

Container.Add(View)

Exceptions

Type	Condition
System.ArgumentNullException	Thrown when child is null.

See Also

Add(View)

FindChildById(uint)

Search through this layer's hierarchy for a view with the given unique ID.

Declaration

public View FindChildById(uint id)

Parameters

Type	Name	Description
uint	id	The id of the child to find

Returns

Type	Description
View	A handle to the view if found, or an empty handle if not.

Remarks

The actor itself is also considered in the search.

GetChildAt(uint)

Retrieves a child view by the index.

Declaration

public override View GetChildAt(uint index)

Parameters

Type	Name	Description
uint	index	The index of the child to retrieve.

Returns

Type	Description
View	The view for the given index or empty handle if children not initialized.

Overrides

Container.GetChildAt(uint)

GetChildCount()

Get the child count of the layer.

Declaration

[Obsolete("This has been deprecated in API9 and will be removed in API11. Use ChildCount property instead")]
public override uint GetChildCount()

Returns

Type	Description
uint	The child count of the layer.

Overrides

Container.GetChildCount()

GetParent()

Get parent of the layer.

Declaration

public override Container GetParent()

Returns

Type	Description
Container	The view's container

Overrides

Container.GetParent()

Lower()

Decrements the depth of the layer.

Declaration

public void Lower()

LowerToBottom()

Lowers the layer to the bottom.

Declaration

public void LowerToBottom()

MoveAbove(Layer)

Moves the layer directly above the given layer.
After the call, this layer's depth will be immediately above target.

Declaration

public void MoveAbove(Layer target)

Parameters

Type	Name	Description
Layer	target	The layer to get on top of.

MoveBelow(Layer)

Moves the layer directly below the given layer.
After the call, this layer's depth will be immediately below target.

Declaration

public void MoveBelow(Layer target)

Parameters

Type	Name	Description
Layer	target	The layer to get below of.

Raise()

Increments the depth of the layer.

Declaration

public void Raise()

RaiseToTop()

Raises the layer to the top.

Declaration

public void RaiseToTop()

Remove(View)

Removes a child view from this layer. If the view was not a child of this layer, this is a no-op.

Declaration

public override void Remove(View child)

Parameters

Type	Name	Description
View	child

Overrides

Container.Remove(View)

Exceptions

Type	Condition
System.ArgumentNullException	Thrown when child is null.

See Also

Remove(View)

Implements

System.ComponentModel.INotifyPropertyChanged

System.IDisposable