Method Detail

• getLayoutManager

   RecyclerView.LayoutManager getLayoutManager()

  Returns the LayoutManager thatis associated with this OrientationHelper.

• onLayoutComplete

   void onLayoutComplete()

  Call this method after onLayout method is complete if state is NOT pre-layout.This method records information like layout bounds that might be useful in the next layoutcalculations.

• getTotalSpaceChange

   int getTotalSpaceChange()

  Returns the layout space change between the previous layout pass and current layout pass.

  Make sure you call onLayoutComplete at the end of your LayoutManager's onLayoutChildren method.

• getDecoratedStart

   abstract int getDecoratedStart(View view)

  Returns the start of the view including its decoration and margin.

  For example, for the horizontal helper, if a View's left is at pixel 20, has 2px leftdecoration and 3px left margin, returned value will be 15px.

  Parameters:

  view - The view element to check

• getDecoratedEnd

   abstract int getDecoratedEnd(View view)

  Returns the end of the view including its decoration and margin.

  For example, for the horizontal helper, if a View's right is at pixel 200, has 2px rightdecoration and 3px right margin, returned value will be 205.

  Parameters:

  view - The view element to check

• getTransformedEndWithDecoration

   abstract int getTransformedEndWithDecoration(View view)

  Returns the end of the View after its matrix transformations are applied to its layoutposition.

  This method is useful when trying to detect the visible edge of a View.

  It includes the decorations but does not include the margins.

  Parameters:

  view - The view whose transformed end will be returned

• getTransformedStartWithDecoration

   abstract int getTransformedStartWithDecoration(View view)

  Returns the start of the View after its matrix transformations are applied to its layoutposition.

  This method is useful when trying to detect the visible edge of a View.

  It includes the decorations but does not include the margins.

  Parameters:

  view - The view whose transformed start will be returned

• getDecoratedMeasurement

   abstract int getDecoratedMeasurement(View view)

  Returns the space occupied by this View in the current orientation including decorations andmargins.

  Parameters:

  view - The view element to check

• getDecoratedMeasurementInOther

   abstract int getDecoratedMeasurementInOther(View view)

  Returns the space occupied by this View in the perpendicular orientation includingdecorations and margins.

  Parameters:

  view - The view element to check

• getStartAfterPadding

   abstract int getStartAfterPadding()

  Returns the start position of the layout after the start padding is added.

• getEndAfterPadding

   abstract int getEndAfterPadding()

  Returns the end position of the layout after the end padding is removed.

• getEnd

   abstract int getEnd()

  Returns the end position of the layout without taking padding into account.

• offsetChildren

   abstract void offsetChildren(int amount)

  Offsets all children's positions by the given amount.

  Parameters:

  amount - Value to add to each child's layout parameters

• getTotalSpace

   abstract int getTotalSpace()

  Returns the total space to layout. This number is the difference between getEndAfterPadding and getStartAfterPadding.

• offsetChild

   abstract void offsetChild(View view, int offset)

  Offsets the child in this orientation.

  Parameters:

  view - View to offset

  offset - offset amount

• getEndPadding

   abstract int getEndPadding()

  Returns the padding at the end of the layout. For horizontal helper, this is the rightpadding and for vertical helper, this is the bottom padding. This method does not checkwhether the layout is RTL or not.

• getMode

   abstract int getMode()

  Returns the MeasureSpec mode for the current orientation from the LayoutManager.

• getModeInOther

   abstract int getModeInOther()

  Returns the MeasureSpec mode for the perpendicular orientation from the LayoutManager.

• createOrientationHelper

   static OrientationHelper createOrientationHelper(RecyclerView.LayoutManager layoutManager, int orientation)

  Creates an OrientationHelper for the given LayoutManager and orientation.

  Parameters:

  layoutManager - LayoutManager to attach to

  orientation - Desired orientation.

• createHorizontalHelper

   static OrientationHelper createHorizontalHelper(RecyclerView.LayoutManager layoutManager)

  Creates a horizontal OrientationHelper for the given LayoutManager.

  Parameters:

  layoutManager - The LayoutManager to attach to.

• createVerticalHelper

   static OrientationHelper createVerticalHelper(RecyclerView.LayoutManager layoutManager)

  Creates a vertical OrientationHelper for the given LayoutManager.

  Parameters:

  layoutManager - The LayoutManager to attach to.