Click or drag to resize

MainExample Class

The main example implementation demonstrating common (not all) functionalities:

- using both a horizontal (also includes optional snapping) and a vertical ScrollView with a complex prefab,

- changing the item count, adding/removing to/from head/end of the list,

- expanding/collapsing an item, thus demonstrating the possibility of multiple sizes,

- smooth scrolling to an item & optionally doing an action after the animation is done,

- comparing the performance to the default implementation of a ScrollView,

- the use of ScrollbarFixer8

At the core, everything's the same as in other example implementations, so if something's not clear, check them (SimpleExample is a good start)

Inheritance Hierarchy
SystemObject
  Object
    Component
      Behaviour
        MonoBehaviour
          Com.ForbiddenByte.OSA.CoreOSAMyParams, ClientItemViewsHolder
            Com.ForbiddenByte.OSA.Demos.MainMainExample

Namespace:  Com.ForbiddenByte.OSA.Demos.Main
Assembly:  Assembly-CSharp (in Assembly-CSharp.dll) Version: 0.0.0.0
Syntax
C#
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public class MainExample : OSA<MyParams, ClientItemViewsHolder>, 
	ExpandCollapseOnClickISizeChangesHandler

The MainExample type exposes the following members.

Constructors
  NameDescription
Public methodMainExample
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Properties
  NameDescription
Public propertyLazyData
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Methods
  NameDescription
Protected methodCreateViewsHolder

Called when there are no recyclable views for itemIndex. Provide a new viewsholder instance for itemIndex. This is the place where you must initialize the viewsholder

via Init(GameObject, Int32, Boolean, Boolean) shortcut or manually set its itemIndex, instantiate the prefab and call its CollectViews

(Overrides OSATParams, TItemViewsHolderCreateViewsHolder(Int32).)
Protected methodOnDestroy (Overrides OSATParams, TItemViewsHolderOnDestroy.)
Public methodOnExpandedStateChanged
Protected methodOnItemIndexChangedDueInsertOrRemove

This is overidden only so that the items' title will be updated to reflect its new index in case of Insert/Remove, because the index is not stored in the model

If you don't store/care about the index of each item, you can omit this

For more info, see OnItemIndexChangedDueInsertOrRemove(TItemViewsHolder, Int32, Boolean, Int32)

(Overrides OSATParams, TItemViewsHolderOnItemIndexChangedDueInsertOrRemove(TItemViewsHolder, Int32, Boolean, Int32).)
Protected methodStart (Overrides OSATParams, TItemViewsHolderStart.)
Protected methodUpdateViewsHolder

Here the data in your model should be bound to the views. Use newOrRecycled.ItemIndex (ItemIndex) to retrieve its associated model

Note that views holders are re-used (this is the main purpose of this adapter), so a views holder's views will contain data from its previously associated model and if,

for example, you're downloading an image to be set as an icon, it makes sense to first clear the previous one (and probably temporarily replace it with a generic "Loading" image)

Note that this is not called for items that will remain visible after an Insert or Remove operation is done

(Overrides OSATParams, TItemViewsHolderUpdateViewsHolder(TItemViewsHolder).)
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Version Information

Optimized ScrollView Adapter

Supported in: 4.1
See Also