belongs to Maven artifact com.android.support:leanback-v17:28.0.0-alpha1
ListRowPresenter
public
class
ListRowPresenter
extends RowPresenter
| java.lang.Object | |||
| ↳ | android.support.v17.leanback.widget.Presenter | ||
| ↳ | android.support.v17.leanback.widget.RowPresenter | ||
| ↳ | android.support.v17.leanback.widget.ListRowPresenter | ||
ListRowPresenter renders ListRow using a
HorizontalGridView hosted in a ListRowView.
Hover card
Optionally,setHoverCardPresenterSelector(PresenterSelector) can be used to
display a view for the currently focused list item below the rendered
list. This view is known as a hover card.
Row selection animation
ListRowPresenter disablesRowPresenter's default full row dimming effect and draws
a dim overlay on each child individually. A subclass may disable the overlay on each child
by overriding isUsingDefaultListSelectEffect() to return false and write its own child
dim effect in applySelectLevelToChild(ViewHolder, View).
Shadow
ListRowPresenter applies a default shadow to each child view. CallsetShadowEnabled(boolean) to disable shadows. A subclass may override and return
false in isUsingDefaultShadow() and replace with its own shadow implementation.
Summary
Nested classes | |
|---|---|
class |
ListRowPresenter.SelectItemViewHolderTask
A task on the ListRowPresenter.ViewHolder that can select an item by position in the HorizontalGridView and perform an optional item task on it. |
class |
ListRowPresenter.ViewHolder
ViewHolder for the ListRowPresenter. |
Inherited constants |
|---|
From
class
android.support.v17.leanback.widget.RowPresenter
|
Public constructors | |
|---|---|
ListRowPresenter()
Constructs a ListRowPresenter with defaults. |
|
ListRowPresenter(int focusZoomFactor)
Constructs a ListRowPresenter with the given parameters. |
|
ListRowPresenter(int focusZoomFactor, boolean useFocusDimmer)
Constructs a ListRowPresenter with the given parameters. |
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Public methods | |
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final
boolean
|
areChildRoundedCornersEnabled()
Returns true if rounded corners are enabled for children of this row. |
final
void
|
enableChildRoundedCorners(boolean enable)
Enables or disabled rounded corners on children of this row. |
void
|
freeze(RowPresenter.ViewHolder holder, boolean freeze)
Freezes/unfreezes the row, typically used when a transition starts/ends. |
int
|
getExpandedRowHeight()
Returns the expanded row height for rows created by this Presenter. |
final
int
|
getFocusZoomFactor()
Returns the zoom factor used for focus highlighting. |
final
PresenterSelector
|
getHoverCardPresenterSelector()
Returns the |
int
|
getRecycledPoolSize(Presenter presenter)
Returns the recycled pool size for the given presenter. |
int
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getRowHeight()
Returns the row height for list rows created by this Presenter. |
final
boolean
|
getShadowEnabled()
Returns true if child shadow is enabled. |
final
int
|
getZoomFactor()
This method was deprecated
in API level 22.1.0.
use |
final
boolean
|
isFocusDimmerUsed()
Returns true if the focus dimmer is used for focus highlighting; false otherwise. |
final
boolean
|
isKeepChildForeground()
Returns true if keeps foreground of child of this row, false otherwise. |
boolean
|
isUsingDefaultListSelectEffect()
Returns true so that default select effect is applied to each individual
child of |
final
boolean
|
isUsingDefaultSelectEffect()
ListRowPresenter overrides the default select effect of |
boolean
|
isUsingDefaultShadow()
Default implementation returns true if SDK version >= 21, shadow (either static or z-order
based) will be applied to each individual child of |
boolean
|
isUsingOutlineClipping(Context context)
Returns true if leanback view outline is enabled on the system or false otherwise. |
boolean
|
isUsingZOrder(Context context)
Returns true if SDK >= L, where Z shadow is enabled so that Z order is enabled on each child of horizontal list. |
void
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setEntranceTransitionState(RowPresenter.ViewHolder holder, boolean afterEntrance)
Changes the visibility of views. |
void
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setExpandedRowHeight(int rowHeight)
Sets the expanded row height for rows created by this Presenter. |
final
void
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setHoverCardPresenterSelector(PresenterSelector selector)
Sets the |
final
void
|
setKeepChildForeground(boolean keep)
When ListRowPresenter applies overlay color on the child, it may change child's foreground Drawable. |
void
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setNumRows(int numRows)
Sets the numbers of rows for rendering the list of items. |
void
|
setRecycledPoolSize(Presenter presenter, int size)
Sets the recycled pool size for the given presenter. |
void
|
setRowHeight(int rowHeight)
Sets the row height for rows created by this Presenter. |
final
void
|
setShadowEnabled(boolean enabled)
Enables or disables child shadow. |
Protected methods | |
|---|---|
void
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applySelectLevelToChild(ListRowPresenter.ViewHolder rowViewHolder, View childView)
Applies select level to a child. |
RowPresenter.ViewHolder
|
createRowViewHolder(ViewGroup parent)
Called to create a ViewHolder object for a Row. |
ShadowOverlayHelper.Options
|
createShadowOverlayOptions()
Create ShadowOverlayHelper Options. |
void
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dispatchItemSelectedListener(RowPresenter.ViewHolder holder, boolean selected)
Dispatch item selected event using current selected item in the |
void
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initializeRowViewHolder(RowPresenter.ViewHolder holder)
Called after a |
void
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onBindRowViewHolder(RowPresenter.ViewHolder holder, Object item)
Binds the given row object to the given ViewHolder. |
void
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onRowViewExpanded(RowPresenter.ViewHolder holder, boolean expanded)
Called when the row view's expanded state changes. |
void
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onRowViewSelected(RowPresenter.ViewHolder holder, boolean selected)
Called when the given row view changes selection state. |
void
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onSelectLevelChanged(RowPresenter.ViewHolder holder)
Applies select level to header and draws a default color dim over each child
of |
void
|
onUnbindRowViewHolder(RowPresenter.ViewHolder holder)
Unbinds the given ViewHolder. |
Inherited methods | |
|---|---|
From
class
android.support.v17.leanback.widget.RowPresenter
| |