public class

VerticalGridPresenter

extends Presenter

java.lang.Object
↳	android.support.v17.leanback.widget.Presenter
	↳	android.support.v17.leanback.widget.VerticalGridPresenter

Class Overview

A presenter that renders objects in a vertical grid.

Summary

Nested Classes
class	VerticalGridPresenter.ViewHolder

Public Constructors
	VerticalGridPresenter()
	VerticalGridPresenter(int zoomFactor)

Public Methods
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.
int	getNumberOfColumns() Returns the number of columns in the vertical grid.
final OnItemClickedListener	getOnItemClickedListener() This method is deprecated. Use `getOnItemViewClickedListener()`
final OnItemSelectedListener	getOnItemSelectedListener() This method is deprecated. Use `getOnItemViewSelectedListener()`
final OnItemViewClickedListener	getOnItemViewClickedListener() Returns the item clicked listener.
final OnItemViewSelectedListener	getOnItemViewSelectedListener() Returns the item selected listener.
final boolean	getShadowEnabled() Returns true if child shadow is enabled.
boolean	isUsingDefaultShadow() Returns true if opticalBounds is supported (SDK >= 18) so that default shadow is applied to each individual child of `VerticalGridView`.
boolean	isUsingZOrder() Returns true if SDK >= L, where Z shadow is enabled so that Z order is enabled on each child of vertical grid.
void	onBindViewHolder(Presenter.ViewHolder viewHolder, Object item) Binds a `View` to an item.
final VerticalGridPresenter.ViewHolder	onCreateViewHolder(ViewGroup parent) Creates a new `View`.
void	onUnbindViewHolder(Presenter.ViewHolder viewHolder) Unbinds a `View` from an item.
void	setNumberOfColumns(int numColumns) Sets the number of columns in the vertical grid.
final void	setOnItemClickedListener(OnItemClickedListener listener) This method is deprecated. Use `setOnItemViewClickedListener(OnItemViewClickedListener)`
final void	setOnItemSelectedListener(OnItemSelectedListener listener) This method is deprecated. Use `setOnItemViewSelectedListener(OnItemViewSelectedListener)`
final void	setOnItemViewClickedListener(OnItemViewClickedListener listener) Sets the item clicked listener.
final void	setOnItemViewSelectedListener(OnItemViewSelectedListener listener) Sets the item selected listener.
final void	setShadowEnabled(boolean enabled) Enable or disable child shadow.

Protected Methods
VerticalGridPresenter.ViewHolder	createGridViewHolder(ViewGroup parent) Subclass may override this to inflate a different layout.
void	initializeGridViewHolder(VerticalGridPresenter.ViewHolder vh) Called after a `VerticalGridPresenter.ViewHolder` is created.

[Expand]

Inherited Methods

From class android.support.v17.leanback.widget.Presenter

From class java.lang.Object

Object	clone() Creates and returns a copy of this `Object`.
boolean	equals(Object o) Compares this instance with the specified object and indicates if they are equal.
void	finalize() Invoked when the garbage collector has detected that this instance is no longer reachable.
final Class<?>	getClass() Returns the unique instance of `Class` that represents this object's class.
int	hashCode() Returns an integer hash code for this object.
final void	notify() Causes a thread which is waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
final void	notifyAll() Causes all threads which are waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
String	toString() Returns a string containing a concise, human-readable description of this object.
final void	wait() Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object.
final void	wait(long millis, int nanos) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.
final void	wait(long millis) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.

Public Constructors

public VerticalGridPresenter ()

public VerticalGridPresenter (int zoomFactor)

Public Methods

public final boolean areChildRoundedCornersEnabled ()

Returns true if rounded corners are enabled for children of this row.

public final void enableChildRoundedCorners (boolean enable)

Enables or disabled rounded corners on children of this row. Supported on Android SDK >= L.

public int getNumberOfColumns ()

Returns the number of columns in the vertical grid.

public final OnItemClickedListener getOnItemClickedListener ()

This method is deprecated.
Use getOnItemViewClickedListener()

Returns the item clicked listener.

public final OnItemSelectedListener getOnItemSelectedListener ()

This method is deprecated.
Use getOnItemViewSelectedListener()

Returns the item selected listener.

public final OnItemViewClickedListener getOnItemViewClickedListener ()

Returns the item clicked listener.

public final OnItemViewSelectedListener getOnItemViewSelectedListener ()

Returns the item selected listener.

public final boolean getShadowEnabled ()

Returns true if child shadow is enabled. This is not only for enable/disable default shadow implementation but also subclass must respect this flag.

public boolean isUsingDefaultShadow ()

Returns true if opticalBounds is supported (SDK >= 18) so that default shadow is applied to each individual child of VerticalGridView. Subclass may return false to disable.

public boolean isUsingZOrder ()

Returns true if SDK >= L, where Z shadow is enabled so that Z order is enabled on each child of vertical grid. If subclass returns false in isUsingDefaultShadow() and does not use Z-shadow on SDK >= L, it should override isUsingZOrder() return false.

public void onBindViewHolder (Presenter.ViewHolder viewHolder, Object item)

Binds a View to an item.

public final VerticalGridPresenter.ViewHolder onCreateViewHolder (ViewGroup parent)

Creates a new View.

public void onUnbindViewHolder (Presenter.ViewHolder viewHolder)

Unbinds a View from an item. Any expensive references may be released here, and any fields that are not bound for every item should be cleared here.

public void setNumberOfColumns (int numColumns)

Sets the number of columns in the vertical grid.

public final void setOnItemClickedListener (OnItemClickedListener listener)

This method is deprecated.
Use setOnItemViewClickedListener(OnItemViewClickedListener)

Sets the item clicked listener. OnItemClickedListener will override View.OnClickListener that item presenter sets during onCreateViewHolder(ViewGroup). So in general, developer should choose one of the listeners but not both.

public final void setOnItemSelectedListener (OnItemSelectedListener listener)

This method is deprecated.
Use setOnItemViewSelectedListener(OnItemViewSelectedListener)

Sets the item selected listener. Since this is a grid the row parameter is always null.

public final void setOnItemViewClickedListener (OnItemViewClickedListener listener)

Sets the item clicked listener. OnItemViewClickedListener will override View.OnClickListener that item presenter sets during onCreateViewHolder(ViewGroup). So in general, developer should choose one of the listeners but not both.

public final void setOnItemViewSelectedListener (OnItemViewSelectedListener listener)