OSATParams, TItemViewsHolderRequestChangeItemSizeAndUpdateLayout Method (Int32, Single, Boolean, Boolean, Boolean)

public float RequestChangeItemSizeAndUpdateLayout(
	int itemIndex,
	float requestedSize,
	bool itemEndEdgeStationary = false,
	bool computeVisibility = true,
	bool correctItemPosition = false
)

Parameters

itemIndex

Type: SystemInt32
the index of the item to be resized. It doesn't need to be visible(case in which only the cached size will be updated and, obviously, the visible items will shift accordingly)

requestedSize

Type: SystemSingle
the height or width (depending on scrollview's orientation)

itemEndEdgeStationary (Optional)

Type: SystemBoolean
if to grow to the top/left (less common) instead of down/right (more common)

computeVisibility (Optional)

Type: SystemBoolean

correctItemPosition (Optional)

Type: SystemBoolean
If the item's position might've changed externally, set this to true and OSA will try to guess what's the correct position. Note that if you're externally changing an item's position via ContentSizeFitter and without ScheduleComputeVisibilityTwinPass(Boolean) (for functionalities like expand/collapse variable-sized item), the item's position will be changed depending on its pivot. Example, for a vertical ScrollView, having the pivot set to top-center and passing itemEndEdgeStationary as false will keep the item's top edge fixed. To keep the end edge fixed, do the opposite: pivot to bottom-center and itemEndEdgeStationary true.

Return Value

Optimized ScrollView Adapter

Reference