Class LinearLayoutManager

Definition

Namespace:
Tizen.NUI.Components
Assembly:
Tizen.NUI.Components.dll

Layout collection of views horizontally/vertically.

public class LinearLayoutManager : FlexibleViewLayoutManager
Inheritance
object
Disposable
FlexibleViewLayoutManager
LinearLayoutManager
Derived
GridLayoutManager
GridLayoutManager

Constructors

View Source

LinearLayoutManager(int)

Creates a LinearLayoutManager with orientation.

Declaration
public LinearLayoutManager(int orientation)
Parameters
Type Name Description
int orientation

Layout orientation.Should be HORIZONTAL or VERTICAL

Fields

View Source

HORIZONTAL

Constant value: 0.

Declaration
public static readonly int HORIZONTAL
Field Value
Type Description
int
View Source

INVALID_OFFSET

Constant value: -2^31.

Declaration
public static readonly int INVALID_OFFSET
Field Value
Type Description
int
View Source

NO_POSITION

Constant value: -1.

Declaration
public static readonly int NO_POSITION
Field Value
Type Description
int
View Source

VERTICAL

Constant value: 1.

Declaration
public static readonly int VERTICAL
Field Value
Type Description
int

Properties

View Source

FirstCompleteVisibleItemPosition

Retrieves the first complete visible item position.

Declaration
public int FirstCompleteVisibleItemPosition { get; }
Property Value
Type Description
int
View Source

FirstVisibleItemPosition

Retrieves the first visible item position.

Declaration
public int FirstVisibleItemPosition { get; }
Property Value
Type Description
int
View Source

LastCompleteVisibleItemPosition

Retrieves the last complete visible item position.

Declaration
public int LastCompleteVisibleItemPosition { get; }
Property Value
Type Description
int
View Source

LastVisibleItemPosition

Retrieves the last visible item position.

Declaration
public int LastVisibleItemPosition { get; }
Property Value
Type Description
int
View Source

Orientation

Current orientation.

Declaration
protected int Orientation { get; set; }
Property Value
Type Description
int

Methods

View Source

CanScrollHorizontally()

Query if horizontal scrolling is currently supported. The default implementation returns false.

Declaration
public override bool CanScrollHorizontally()
Returns
Type Description
bool
Overrides
View Source

CanScrollVertically()

Query if vertical scrolling is currently supported. The default implementation returns false.

Declaration
public override bool CanScrollVertically()
Returns
Type Description
bool
Overrides
View Source

ComputeScrollExtent()

Compute the extent of the scrollbar's thumb within the range.

Declaration
public override float ComputeScrollExtent()
Returns
Type Description
float
Overrides
View Source

ComputeScrollOffset()

Compute the offset of the scrollbar's thumb within the range.

Declaration
public override float ComputeScrollOffset()
Returns
Type Description
float
Overrides
View Source

ComputeScrollRange()

Compute the range that the scrollbar represents.

Declaration
public override float ComputeScrollRange()
Returns
Type Description
float
Overrides
View Source

FindFirstVisibleItemView()

Retrieves the first visible item view.

Declaration
protected override FlexibleViewViewHolder FindFirstVisibleItemView()
Returns
Type Description
FlexibleViewViewHolder
Overrides
View Source

FindLastVisibleItemView()

Retrieves the last visible item view.

Declaration
protected override FlexibleViewViewHolder FindLastVisibleItemView()
Returns
Type Description
FlexibleViewViewHolder
Overrides
View Source

GetNextPosition(int, Direction)

Retrieves a position that neighbor to current position by direction.

Declaration
protected override int GetNextPosition(int position, FlexibleViewLayoutManager.Direction direction)
Parameters
Type Name Description
int position

The anchor adapter position
FlexibleViewLayoutManager.Direction direction

The direction.
Returns
Type Description
int
Overrides
View Source

OnLayoutChildren(FlexibleViewRecycler)

Lay out all relevant child views from the given adapter.

Declaration
public override void OnLayoutChildren(FlexibleViewRecycler recycler)
Parameters
Type Name Description
FlexibleViewRecycler recycler

Recycler to use for fetching potentially cached views for a position
Overrides
View Source

OnLayoutCompleted()

Called after a full layout calculation is finished.

Declaration
public override void OnLayoutCompleted()
Overrides
View Source

ScrollHorizontallyBy(float, FlexibleViewRecycler, bool)

Scroll horizontally by dy pixels in screen coordinates.

Declaration
public override float ScrollHorizontallyBy(float dx, FlexibleViewRecycler recycler, bool immediate)
Parameters
Type Name Description
float dx

distance to scroll in pixels. Y increases as scroll position approaches the top.
FlexibleViewRecycler recycler

Recycler to use for fetching potentially cached views for a position
bool immediate

Specify if the scroll need animation
Returns
Type Description
float
Overrides
View Source

ScrollToPosition(int)

Scroll the FlexibleView to make the position visible.

Declaration
public override void ScrollToPosition(int position)
Parameters
Type Name Description
int position

Scroll to this adapter position
Overrides
View Source

ScrollToPositionWithOffset(int, int)

Scroll to the specified adapter position with the given offset from resolved layout start.

Declaration
public override void ScrollToPositionWithOffset(int position, int offset)
Parameters
Type Name Description
int position

Scroll to this adapter position
int offset

The distance (in pixels) between the start edge of the item view and start edge of the FlexibleView.
Overrides
View Source

ScrollVerticallyBy(float, FlexibleViewRecycler, bool)

Scroll vertically by dy pixels in screen coordinates.

Declaration
public override float ScrollVerticallyBy(float dy, FlexibleViewRecycler recycler, bool immediate)
Parameters
Type Name Description
float dy

distance to scroll in pixels. Y increases as scroll position approaches the top.
FlexibleViewRecycler recycler

Recycler to use for fetching potentially cached views for a position
bool immediate

Specify if the scroll need animation
Returns
Type Description
float
Overrides

Extension Methods