ScrollingView
public interface ScrollingView
NestedScrollView |
NestedScrollView is just like |
RecyclerView |
A flexible view for providing a limited window into a large data set. |
BaseGridView |
An abstract base class for vertically and horizontally scrolling lists. |
HorizontalGridView |
A |
VerticalGridView |
A |
WearableRecyclerView |
Wearable specific implementation of the |
An interface that can be implemented by Views to provide scroll related APIs.
Summary
Public methods |
|
|---|---|
abstract int |
Compute the horizontal extent of the horizontal scrollbar's thumb within the horizontal range. |
abstract int |
Compute the horizontal offset of the horizontal scrollbar's thumb within the horizontal range. |
abstract int |
Compute the horizontal range that the horizontal scrollbar represents. |
abstract int |
Compute the vertical extent of the vertical scrollbar's thumb within the vertical range. |
abstract int |
Compute the vertical offset of the vertical scrollbar's thumb within the horizontal range. |
abstract int |
Compute the vertical range that the vertical scrollbar represents. |
Public methods
computeHorizontalScrollExtent
abstract 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.
The default extent is the drawing width of this view.
| Returns | |
|---|---|
int |
the horizontal extent of the scrollbar's thumb |
computeHorizontalScrollOffset
abstract int computeHorizontalScrollOffset()
Compute the horizontal offset of the horizontal scrollbar's thumb within the horizontal range. This value is used to compute the position 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 computeHorizontalScrollExtent.
The default offset is the scroll offset of this view.
| Returns | |
|---|---|
int |
the horizontal offset of the scrollbar's thumb |
computeHorizontalScrollRange
abstract int computeHorizontalScrollRange()
Compute the horizontal range that the horizontal scrollbar represents.
The range is expressed in arbitrary units that must be the same as the units used by computeHorizontalScrollExtent and computeHorizontalScrollOffset.
The default range is the drawing width of this view.
| Returns | |
|---|---|
int |
the total horizontal range represented by the horizontal scrollbar |
computeVerticalScrollExtent
abstract int computeVerticalScrollExtent()
Compute the vertical extent of the vertical scrollbar's thumb within the vertical 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 computeVerticalScrollRange and computeVerticalScrollOffset.
The default extent is the drawing height of this view.
| Returns | |
|---|---|
int |
the vertical extent of the scrollbar's thumb |
computeVerticalScrollOffset
abstract int computeVerticalScrollOffset()
Compute the vertical offset of the vertical scrollbar's thumb within the horizontal range. This value is used to compute the position 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 computeVerticalScrollRange and computeVerticalScrollExtent.
The default offset is the scroll offset of this view.
| Returns | |
|---|---|
int |
the vertical offset of the scrollbar's thumb |
computeVerticalScrollRange
abstract int computeVerticalScrollRange()
Compute the vertical range that the vertical scrollbar represents.
The range is expressed in arbitrary units that must be the same as the units used by computeVerticalScrollExtent and computeVerticalScrollOffset.
| Returns | |
|---|---|
int |
the total vertical range represented by the vertical scrollbar The default range is the drawing height of this view. |