WearableRecyclerView

Kotlin |Java

open class WearableRecyclerView : RecyclerView

kotlin.Any
↳	android.view.View
	↳	android.view.ViewGroup
		↳	androidx.recyclerview.widget.RecyclerView
			↳	androidx.wear.widget.WearableRecyclerView

Wearable specific implementation of the RecyclerView enabling circular scrolling} and semi-circular layouts.

Summary

Inherited constants

From class RecyclerView Int HORIZONTAL Int INVALID_TYPE Long NO_ID Int NO_POSITION Int SCROLL_STATE_DRAGGING The RecyclerView is currently being dragged by outside input such as user touch input. Int SCROLL_STATE_IDLE The RecyclerView is not currently scrolling. Int SCROLL_STATE_SETTLING The RecyclerView is currently animating to a final position while not under outside control. Int TOUCH_SLOP_DEFAULT Constant for use with setScrollingTouchSlop(int). Indicates that the RecyclerView should use the standard touch slop for smooth, continuous scrolling. Int TOUCH_SLOP_PAGING Constant for use with setScrollingTouchSlop(int). Indicates that the RecyclerView should use the standard touch slop for scrolling widgets that snap to a page or other coarse-grained barrier. Int UNDEFINED_DURATION Constant that represents that a duration has not been defined. Int VERTICAL

Public constructors
<init>(context: Context!)
<init>(context: Context!, @Nullable attrs: AttributeSet?)
<init>(context: Context!, @Nullable attrs: AttributeSet?, defStyle: Int)
<init>(context: Context!, @Nullable attrs: AttributeSet?, defStyle: Int, defStyleRes: Int)

Public methods
open Float	getBezelFraction() Returns the current bezel width for circular scrolling as a fraction of the screen's radius.
open Float	getScrollDegreesPerScreen() Returns how many degrees does the user have to rotate for to scroll through one screen height.
open Boolean	isCircularScrollingGestureEnabled() Returns whether circular scrolling is enabled for this view.
open Boolean	isEdgeItemsCenteringEnabled() Returns whether the view is currently configured to center the edge children.
open Boolean	onTouchEvent(event: MotionEvent!)
open Unit	setBezelFraction(fraction: Float) Taps within this radius and the radius of the screen are considered close enough to the bezel to be candidates for circular scrolling.
open Unit	setCircularScrollingGestureEnabled(circularScrollingGestureEnabled: Boolean) Enables/disables circular touch scrolling for this view.
open Unit	setEdgeItemsCenteringEnabled(isEnabled: Boolean) Use this method to configure the WearableRecyclerView on round watches to always align the first and last items with the vertical center of the screen.
open Unit	setScrollDegreesPerScreen(degreesPerScreen: Float) Sets how many degrees the user has to rotate by to scroll through one screen height when they are using the circular scrolling gesture.

Protected methods
open Unit	onAttachedToWindow()
open Unit	onDetachedFromWindow()

Inherited functions

From class RecyclerView Unit addFocusables(views: ArrayList<View!>!, direction: Int, focusableMode: Int) Unit addItemDecoration(@NonNull decor: RecyclerView.ItemDecoration, index: Int) Add an ItemDecoration to this RecyclerView. Item decorations can affect both measurement and drawing of individual item views. Item decorations are ordered. Decorations placed earlier in the list will be run/queried/drawn first for their effects on item views. Padding added to views will be nested; a padding added by an earlier decoration will mean further item decorations in the list will be asked to draw/pad within the previous decoration's given area. Unit addItemDecoration(@NonNull decor: RecyclerView.ItemDecoration) Add an ItemDecoration to this RecyclerView. Item decorations can affect both measurement and drawing of individual item views. Item decorations are ordered. Decorations placed earlier in the list will be run/queried/drawn first for their effects on item views. Padding added to views will be nested; a padding added by an earlier decoration will mean further item decorations in the list will be asked to draw/pad within the previous decoration's given area. Unit addOnChildAttachStateChangeListener(@NonNull listener: RecyclerView.OnChildAttachStateChangeListener) Register a listener that will be notified whenever a child view is attached to or detached from RecyclerView. This listener will be called when a LayoutManager or the RecyclerView decides that a child view is no longer needed. If an application associates expensive or heavyweight data with item views, this may be a good place to release or free those resources. Unit addOnItemTouchListener(@NonNull listener: RecyclerView.OnItemTouchListener) Add an OnItemTouchListener to intercept touch events before they are dispatched to child views or this view's standard scrolling behavior. Client code may use listeners to implement item manipulation behavior. Once a listener returns true from OnItemTouchListener#onInterceptTouchEvent(RecyclerView, MotionEvent) its OnItemTouchListener#onTouchEvent(RecyclerView, MotionEvent) method will be called for each incoming MotionEvent until the end of the gesture. Unit addOnScrollListener(@NonNull listener: RecyclerView.OnScrollListener) Add a listener that will be notified of any changes in scroll state or position. Components that add a listener should take care to remove it when finished. Other components that take ownership of a view may call clearOnScrollListeners() to remove all attached listeners. Unit addRecyclerListener(@NonNull listener: RecyclerView.RecyclerListener) Register a listener that will be notified whenever a child view is recycled. The listeners will be called when a LayoutManager or the RecyclerView decides that a child view is no longer needed. If an application associates data with the item views being recycled, this may be a good place to release or free those resources. Boolean checkLayoutParams(p: LayoutParams!) Unit clearOnChildAttachStateChangeListeners() Removes all listeners that were added via addOnChildAttachStateChangeListener(OnChildAttachStateChangeListener). Unit clearOnScrollListeners() Remove all secondary listener that were notified of any changes in scroll state or position. Int computeHorizontalScrollExtent() Compute the horizontal extent of the horizontal scrollbar's thumb within the horizontal range. This value is used to compute the length of the thumb within the scrollbar's track. The range is expressed in arbitrary units that must be the same as the units used by computeHorizontalScrollRange() and computeHorizontalScrollOffset(). Default implementation returns 0. If you want to support scroll bars, override RecyclerView.LayoutManager#computeHorizontalScrollExtent(RecyclerView.State) in your LayoutManager. Int computeHorizontalScrollOffset() Compute the horizontal offset of the horizontal scrollbar's thumb within the horizontal range. This value is used to compute the length of the thumb within the scrollbar's track. The range is expressed in arbitrary units that must be the same as the units used by