WearableRecyclerView

Added in 1.1.0

public class WearableRecyclerView extends RecyclerView


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

Summary

Public constructors

WearableRecyclerView(
    Context context,
    @Nullable AttributeSet attrs,
    int defStyle
)
WearableRecyclerView(
    Context context,
    @Nullable AttributeSet attrs,
    int defStyle,
    int defStyleRes
)

Public methods

float

Returns the current bezel width for circular scrolling as a fraction of the screen's radius.

float

Returns how many degrees does the user have to rotate for to scroll through one screen height.

boolean

Returns whether circular scrolling is enabled for this view.

boolean

Returns whether the view is currently configured to center the edge children.

boolean
void
setBezelFraction(float fraction)

Taps within this radius and the radius of the screen are considered close enough to the bezel to be candidates for circular scrolling.

void
setCircularScrollingGestureEnabled(
    boolean circularScrollingGestureEnabled
)

Enables/disables circular touch scrolling for this view.

void
setEdgeItemsCenteringEnabled(boolean isEnabled)

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.

void
setScrollDegreesPerScreen(float degreesPerScreen)

Sets how many degrees the user has to rotate by to scroll through one screen height when they are using the circular scrolling gesture.The default value equates 180 degrees scroll to one screen.

Protected methods

void
void

Inherited Constants

From androidx.recyclerview.widget.RecyclerView
static final int
static final int
static final long
NO_ID = -1
static final int
static final int

The RecyclerView is currently being dragged by outside input such as user touch input.

static final int

The RecyclerView is not currently scrolling.

static final int

The RecyclerView is currently animating to a final position while not under outside control.

static final int

Constant for use with setScrollingTouchSlop.

static final int

Constant for use with setScrollingTouchSlop.

static final int
UNDEFINED_DURATION = -2147483648

Constant that represents that a duration has not been defined.

static final int
From android.view.View
static final int
static final int
static final int
static final int
static final int
static final int
static final Property<ViewFloat>
static final int
static final String
AUTOFILL_HINT_CREDIT_CARD_EXPIRATION_DATE = "creditCardExpirationDate"
static final String
AUTOFILL_HINT_CREDIT_CARD_EXPIRATION_DAY = "creditCardExpirationDay"
static final String
AUTOFILL_HINT_CREDIT_CARD_EXPIRATION_MONTH = "creditCardExpirationMonth"
static final String
AUTOFILL_HINT_CREDIT_CARD_EXPIRATION_YEAR = "creditCardExpirationYear"
static final String
static final String
AUTOFILL_HINT_CREDIT_CARD_SECURITY_CODE = "creditCardSecurityCode"
static final String
static final String
static final String
static final String
static final String
static final String
static final String
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int

This field is deprecated.

static final int

This field is deprecated.

static final int

This field is deprecated.

static final int[]
static final int[]
static final int[]
static final int[]
static final int[]
static final int[]
static final int[]
static final int[]
static final int[]
static final int
static final int
static final int
static final int
static final int
static final int
static final int[]
static final int[]
static final int[]
static final int[]
static final int
static final int
static final int
static final int
static final int
static final int
static final int
GONE = 8
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
KEEP_SCREEN_ON = 67108864
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
NO_ID = -1
static final int
static final int
static final int
static final int[]
static final int[]
static final int[]
static final int[]
static final int[]
static final int[]
static final int[]
static final int[]
static final int[]
static final int[]
static final int[]
static final int[]
static final int[]
static final int[]
static final int[]
static final int[]
static final Property<ViewFloat>
static final Property<ViewFloat>
static final Property<ViewFloat>
static final Property<ViewFloat>
static final Property<ViewFloat>
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int[]
static final int[]
static final int
static final int

This field is deprecated.

static final int

This field is deprecated.

static final int

This field is deprecated.

static final int

This field is deprecated.

static final int

This field is deprecated.

static final int

This field is deprecated.

static final int

This field is deprecated.

static final int

This field is deprecated.

static final int

This field is deprecated.

static final int

This field is deprecated.

static final int

This field is deprecated.

static final int

This field is deprecated.

static final int

This field is deprecated.

static final int

This field is deprecated.

static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final int
static final Property<ViewFloat>
static final Property<ViewFloat>
static final Property<ViewFloat>
static final String
VIEW_LOG_TAG = "View"
static final int
static final int[]
static final Property<ViewFloat>
static final Property<ViewFloat>
static final Property<ViewFloat>
From android.view.ViewGroup
static final int
static final int
static final int
static final int
static final int
static final int
static final int

This field is deprecated.

static final int

This field is deprecated.

static final int

This field is deprecated.

static final int

This field is deprecated.

Inherited methods

From androidx.core.view.NestedScrollingChild
abstract boolean
dispatchNestedPreScroll(
    int dx,
    int dy,
    @Nullable int[] consumed,
    @Nullable int[] offsetInWindow
)

Dispatch one step of a nested scroll in progress before this view consumes any portion of it.

abstract boolean
dispatchNestedScroll(
    int dxConsumed,
    int dyConsumed,
    int dxUnconsumed,
    int dyUnconsumed,
    @Nullable int[] offsetInWindow
)

Dispatch one step of a nested scroll in progress.

abstract boolean

Begin a nestable scroll operation along the given axes.

From androidx.core.view.NestedScrollingChild2
abstract boolean
dispatchNestedPreScroll(
    int dx,
    int dy,
    @Nullable int[] consumed,
    @Nullable int[] offsetInWindow,
    int type
)

Dispatch one step of a nested scroll in progress before this view consumes any portion of it.

abstract boolean
dispatchNestedScroll(
    int dxConsumed,
    int dyConsumed,
    int dxUnconsumed,
    int dyUnconsumed,
    @Nullable int[] offsetInWindow,
    int type
)

Dispatch one step of a nested scroll in progress.

abstract boolean

Returns true if this view has a nested scrolling parent for the given input type.

abstract boolean
startNestedScroll(int axes, int type)

Begin a nestable scroll operation along the given axes, for the given input type.

abstract void
stopNestedScroll(int type)

Stop a nested scroll in progress for the given input type.

From androidx.core.view.NestedScrollingChild3
abstract void
dispatchNestedScroll(
    int dxConsumed,
    int dyConsumed,
    int dxUnconsumed,
    int dyUnconsumed,
    @Nullable int[] offsetInWindow,
    int type,
    @NonNull int[] consumed
)

Dispatch one step of a nested scroll in progress.

From androidx.recyclerview.widget.RecyclerView
void
addFocusables(ArrayList<View> views, int direction, int focusableMode)
void

Add an ItemDecoration to this RecyclerView.

void

Add an ItemDecoration to this RecyclerView.

void

Register a listener that will be notified whenever a child view is attached to or detached from RecyclerView.

void

Add an OnItemTouchListener to intercept touch events before they are dispatched to child views or this view's standard scrolling behavior.

void

Add a listener that will be notified of any changes in scroll state or position.

void

Register a listener that will be notified whenever a child view is recycled.

boolean
void

Removes all listeners that were added via addOnChildAttachStateChangeListener.

void

Remove all secondary listener that were notified of any changes in scroll state or position.

int

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

int

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

int

Compute the horizontal range that the horizontal scrollbar represents.

int

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

int

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

int

Compute the vertical range that the vertical scrollbar represents.

boolean
boolean
dispatchNestedFling(float velocityX, float velocityY, boolean consumed)
boolean
dispatchNestedPreFling(float velocityX, float velocityY)
boolean
dispatchNestedPreScroll(
    int dx,
    int dy,
    int[] consumed,
    int[] offsetInWindow
)
boolean
dispatchNestedPreScroll(
    int dx,
    int dy,
    int[] consumed,
    int[] offsetInWindow,
    int type
)

Dispatch one step of a nested scroll in progress before this view consumes any portion of it.

boolean
dispatchNestedScroll(
    int dxConsumed,
    int dyConsumed,
    int dxUnconsumed,
    int dyUnconsumed,
    int[] offsetInWindow
)
boolean
dispatchNestedScroll(
    int dxConsumed,
    int dyConsumed,
    int dxUnconsumed,
    int dyUnconsumed,
    int[] offsetInWindow,
    int type
)

Dispatch one step of a nested scroll in progress.

final void
dispatchNestedScroll(
    int dxConsumed,
    int dyConsumed,
    int dxUnconsumed,
    int dyUnconsumed,
    int[] offsetInWindow,
    int type,
    @NonNull int[] consumed
)

Dispatch one step of a nested scroll in progress.

boolean
void

Override to prevent thawing of any views created by the adapter.

void

Override to prevent freezing of any views created by the adapter.

void
boolean
drawChild(@NonNull Canvas canvas, View child, long drawingTime)
@Nullable View
findChildViewUnder(float x, float y)

Find the topmost view under the given point.

@Nullable View

Traverses the ancestors of the given view and returns the item view that contains it and also a direct child of the RecyclerView.

@Nullable RecyclerView.ViewHolder

Returns the ViewHolder that contains the given view.

@Nullable RecyclerView.ViewHolder

Return the ViewHolder for the item in the given position of the data set.

RecyclerView.ViewHolder

Return the ViewHolder for the item with the given id.

@Nullable RecyclerView.ViewHolder

Return the ViewHolder for the item in the given position of the data set as of the latest layout pass.

@Nullable RecyclerView.ViewHolder

This method is deprecated.

use findViewHolderForLayoutPosition or findViewHolderForAdapterPosition

boolean
fling(int velocityX, int velocityY)

Begin a standard fling with an initial velocity along each axis in pixels per second.

View
focusSearch(View focused, int direction)

Since RecyclerView is a collection ViewGroup that includes virtual children (items that are in the Adapter but not visible in the UI), it employs a more involved focus search strategy that differs from other ViewGroups.

ViewGroup.LayoutParams
ViewGroup.LayoutParams
ViewGroup.LayoutParams
CharSequence
@Nullable RecyclerView.Adapter

Retrieves the previously set adapter or null if no adapter is set.

int

Return the offset of the RecyclerView's text baseline from the its top boundary.

int

Return the adapter position that the given child view corresponds to.

int
getChildDrawingOrder(int childCount, int i)
long

Return the stable item id that the given child view corresponds to.

int

Return the adapter position of the given child view as of the latest completed layout pass.

int

This method is deprecated.

use getChildAdapterPosition or getChildLayoutPosition.

RecyclerView.ViewHolder

Retrieve the ViewHolder for the given child view.

boolean

Returns whether this RecyclerView will clip its children to its padding, and resize (but not clip) any EdgeEffect to the padded region, if padding is present.

@Nullable RecyclerViewAccessibilityDelegate

Returns the accessibility delegate compatibility implementation used by the RecyclerView.

void

Returns the bounds of the view including its decoration and margins.

@NonNull RecyclerView.EdgeEffectFactory

Retrieves the previously set EdgeEffectFactory or the default factory if nothing was set.

@Nullable RecyclerView.ItemAnimator

Gets the current ItemAnimator for this RecyclerView.

@NonNull RecyclerView.ItemDecoration

Returns an ItemDecoration previously added to this RecyclerView.

int

Returns the number of ItemDecoration currently added to this RecyclerView.

@Nullable RecyclerView.LayoutManager

Return the LayoutManager currently responsible for layout policy for this RecyclerView.

int

Returns the maximum fling velocity used by this RecyclerView.

int

Returns the minimum velocity to start a fling.

@Nullable RecyclerView.OnFlingListener

Get the current OnFlingListener from this RecyclerView.

boolean

Returns true if the RecyclerView should attempt to preserve currently focused Adapter Item's focus even if the View representing the Item is replaced during a layout calculation.

@NonNull RecyclerView.RecycledViewPool

Retrieve this RecyclerView's RecycledViewPool.

int

Return the current scrolling state of the RecyclerView.

boolean
boolean
boolean

Returns true if this view has a nested scrolling parent for the given input type.

boolean

Returns whether there are pending adapter updates which are not yet applied to the layout.

void

Invalidates all ItemDecorations.

boolean

Returns true if RecyclerView is currently running some animations.

boolean

Returns true if RecyclerView is attached to window.

boolean

Returns whether RecyclerView is currently computing a layout.

boolean

This method is deprecated.

Use isLayoutSuppressed.

final boolean

Returns whether layout and scroll calls on this container are currently being suppressed, due to an earlier call to suppressLayout.

boolean
void
nestedScrollBy(int x, int y)

Same as scrollBy, but also participates in nested scrolling.

void

Offset the bounds of all child views by dx pixels.

void

Offset the bounds of all child views by dy pixels.

void

Called when an item view is attached to this RecyclerView.

void

Called when an item view is detached from this RecyclerView.

void
boolean
boolean
void
onLayout(boolean changed, int l, int t, int r, int b)
void
onMeasure(int widthSpec, int heightSpec)
boolean
onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect)
void
Parcelable
void

Called when the scroll state of this RecyclerView changes.

void
onScrolled(@Px int dx, @Px int dy)

Called when the scroll position of this RecyclerView changes.

void
onSizeChanged(int w, int h, int oldw, int oldh)
void
removeDetachedView(View child, boolean animate)
void

Remove an ItemDecoration from this RecyclerView.

void

Removes the ItemDecoration associated with the supplied index position.

void

Removes the provided listener from child attached state listeners list.

void

Remove an OnItemTouchListener.

void

Remove a listener that was notified of any changes in scroll state or position.

void

Removes the provided listener from RecyclerListener list.

void
requestChildFocus(View child, View focused)
boolean