Class CustomViewRegistry

Definition

Namespace:: Tizen.NUI

Assembly:: Tizen.NUI.dll

API Level:: 3

View the Registry singleton. Used for registering controls and any scriptable properties they have (see ScriptableProperty).

Internal Design from C# to C++

Each custom C# view should have it's static constructor called before any JSON file is loaded. Static constructors for a class will only run once ( they are run per control type, not per instance). Example of running a static constructor: System.Runtime.CompilerServices.RuntimeHelpers.RunClassConstructor (typeof(Spin).TypeHandle); Inside the static constructor the control should register it's type with the ViewRegistry For example:

static Spin() { ViewRegistry.Instance.Register(CreateInstance, typeof(Spin) ); }

The control should also provide a CreateInstance function, which gets passed to the ViewRegistry. // Eventually it will be called if DALi Builderfinds a Spin control in a JSON file. static CustomView CreateInstance() { return new Spin(); }

The DALi C++ equivalent of this is

TypeRegistration mType( typeid(Toolkit::Spin), typeid(Toolkit::Control), CreateInstance );


                C#
                
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public sealed class CustomViewRegistry

Inheritance: System.Object

CustomViewRegistry

Properties

View Source

Instance

Declaration


                C#
                
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public static CustomViewRegistry Instance { get; }

Property Value

Type	Description
CustomViewRegistry

API Level: 3

Methods

View Source

Register(Func<CustomView>, Type)

The function which registers a view and all it's scriptable properties with DALi's type registry. Means the view can be created or configured from a JSON script.

The function uses introspection to scan a views C# properties, then selects the ones with [ScriptableProperty] attribute to be registered. Example of a Spin view registering itself: static Spin() { ViewRegistry registers control type with DALi type registry also uses introspection to find any properties that need to be registered with type registry ViewRegistry.Instance.Register(CreateInstance, typeof(Spin) ); }

Declaration


                C#
                
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public void Register(Func<CustomView> createFunction, Type viewType)

Parameters

Type	Name	Description
System.Func<CustomView>	createFunction
Tizen.System.Type	viewType

Exceptions

Type	Condition
System.ArgumentNullException	Thrown when viewType is null.