DetailsOverviewLogoPresenter

Kotlin |Java

open class DetailsOverviewLogoPresenter : Presenter

kotlin.Any
↳	androidx.leanback.widget.Presenter
	↳	androidx.leanback.widget.DetailsOverviewLogoPresenter

Presenter that responsible to create a ImageView and bind to DetailsOverviewRow. The default implementation uses DetailsOverviewRow#getImageDrawable() and binds to ImageView.

Default implementation assumes no scaleType on ImageView and uses intrinsic width and height of DetailsOverviewRow#getImageDrawable() to initialize ImageView's layout params. To specify a fixed size and/or specify a scapeType, subclass should change ImageView's layout params and scaleType in onCreateView(ViewGroup).

Subclass may override and has its own image view. Subclass may also download image from URL instead of using DetailsOverviewRow#getImageDrawable(). It's subclass's responsibility to call FullWidthDetailsOverviewRowPresenter#notifyOnBindLogo(FullWidthDetailsOverviewRowPresenter.ViewHolder) whenever isBoundToImage(ViewHolder, DetailsOverviewRow) turned to true so that activity transition can be started.

Summary

Nested classes
open	`ViewHolder` ViewHolder for Logo view of DetailsOverviewRow.

Public constructors
`<init>()` Presenter that responsible to create a ImageView and bind to DetailsOverviewRow.

Public methods
open Boolean	`isBoundToImage(viewHolder: DetailsOverviewLogoPresenter.ViewHolder!, row: DetailsOverviewRow!)` Returns true if the logo view is bound to image.
open Unit	`onBindViewHolder(viewHolder: Presenter.ViewHolder!, item: Any!)` Bind logo View to drawable of DetailsOverviewRow and call notifyOnBindLogo().
open View!	`onCreateView(parent: ViewGroup!)` Create a View for the Logo, default implementation loads from R.
open Presenter.ViewHolder!	`onCreateViewHolder(parent: ViewGroup!)`
open Unit	`onUnbindViewHolder(viewHolder: Presenter.ViewHolder!)`
open Unit	`setContext(viewHolder: DetailsOverviewLogoPresenter.ViewHolder!, parentViewHolder: FullWidthDetailsOverviewRowPresenter.ViewHolder!, parentPresenter: FullWidthDetailsOverviewRowPresenter!)` Called from `FullWidthDetailsOverviewRowPresenter` to setup FullWidthDetailsOverviewRowPresenter and FullWidthDetailsOverviewRowPresenter.

Inherited functions

From class Presenter

`Unit`	`cancelAnimationsRecursive(view: View!)` Utility method for removing all running animations on a view.
`Any!`	`getFacet(facetClass: Class<*>!)`
`Unit`	`onBindViewHolder(viewHolder: Presenter.ViewHolder!, item: Any!, payloads: MutableList<Any!>!)` Binds a `View` to an item with a list of payloads.
`Unit`	`onViewAttachedToWindow(holder: Presenter.ViewHolder!)` Called when a view created by this presenter has been attached to a window. This can be used as a reasonable signal that the view is about to be seen by the user. If the adapter previously freed any resources in `onViewDetachedFromWindow(ViewHolder)` those resources should be restored here.
`Unit`	`onViewDetachedFromWindow(holder: Presenter.ViewHolder!)` Called when a view created by this presenter has been detached from its window. Becoming detached from the window is not necessarily a permanent condition; the consumer of an presenter's views may choose to cache views offscreen while they are not visible, attaching and detaching them as appropriate. Any view property animations should be cancelled here or the view may fail to be recycled.
`Unit`	`setFacet(facetClass: Class<*>!, facetImpl: Any!)` Sets dynamic implemented facet in addition to basic Presenter functions.
`Unit`	`setOnClickListener(holder: Presenter.ViewHolder!, listener: OnClickListener!)` Called to set a click listener for the given view holder. The default implementation sets the click listener on the root view in the view holder. If the root view isn't focusable this method should be overridden to set the listener on the appropriate focusable child view(s).

Public constructors

<init>

DetailsOverviewLogoPresenter()

Presenter that responsible to create a ImageView and bind to DetailsOverviewRow. The default implementation uses DetailsOverviewRow#getImageDrawable() and binds to ImageView.

Public methods

isBoundToImage

open fun isBoundToImage(
    viewHolder: DetailsOverviewLogoPresenter.ViewHolder!, 
    row: DetailsOverviewRow!
): Boolean

Returns true if the logo view is bound to image. Subclass may override. The default implementation returns true when DetailsOverviewRow#getImageDrawable() is not null. If subclass of DetailsOverviewLogoPresenter manages its own image drawable, it should override this function to report status correctly and invoke FullWidthDetailsOverviewRowPresenter#notifyOnBindLogo(FullWidthDetailsOverviewRowPresenter.ViewHolder) when image view is bound to the drawable.

onBindViewHolder

open fun onBindViewHolder(
    viewHolder: Presenter.ViewHolder!, 
    item: Any!
): Unit

Bind logo View to drawable of DetailsOverviewRow and call notifyOnBindLogo(). The default implementation assumes the Logo View is an ImageView and change layout size to intrinsic size of ImageDrawable if ViewHolder#isSizeFromDrawableIntrinsic() is true.

Parameters
`viewHolder`	Presenter.ViewHolder!: ViewHolder to bind.
`item`	Any!: DetailsOverviewRow object to bind.

onCreateView

open fun onCreateView(parent: ViewGroup!): View!

Create a View for the Logo, default implementation loads from R.layout#lb_fullwidth_details_overview_logo. Subclass may override this method to use a fixed layout size and change ImageView scaleType. If the layout params is WRAP_CONTENT for both width and size, the ViewHolder would be using intrinsic size of Drawable in onBindViewHolder(Presenter.ViewHolder, Object).

Parameters
`parent`	ViewGroup!: Parent view.

Return
`View!`	View created for the logo.

onCreateViewHolder

open fun onCreateViewHolder(parent: ViewGroup!): Presenter.ViewHolder!

onUnbindViewHolder

open fun onUnbindViewHolder(viewHolder: Presenter.ViewHolder!): Unit

setContext

open fun setContext(
    viewHolder: DetailsOverviewLogoPresenter.ViewHolder!, 
    parentViewHolder: FullWidthDetailsOverviewRowPresenter.ViewHolder!, 
    parentPresenter: FullWidthDetailsOverviewRowPresenter!
): Unit

Called from FullWidthDetailsOverviewRowPresenter to setup FullWidthDetailsOverviewRowPresenter and FullWidthDetailsOverviewRowPresenter.ViewHolder that hosts the logo.

Parameters
`viewHolder`	DetailsOverviewLogoPresenter.ViewHolder!:
`parentViewHolder`	FullWidthDetailsOverviewRowPresenter.ViewHolder!:
`parentPresenter`	FullWidthDetailsOverviewRowPresenter!: