PreviousButtonState

@UnstableApi
class PreviousButtonState

State that holds all interactions to correctly deal with a UI component representing a seek-to-previous button.

This button has no internal state to maintain, it can only be enabled or disabled.

Summary

Public constructors
`PreviousButtonState(player: Player)`

Public functions
`suspend Nothing`	`observe()` Subscribes to updates from `Player.Events` and listens to `Player.EVENT_AVAILABLE_COMMANDS_CHANGED` in order to determine whether the button should be enabled, i.e. respond to user input.
`Unit`	`onClick()`

Public properties
`Boolean`	`isEnabled` determined by `isCommandAvailable(Player.COMMAND_SEEK_TO_PREVIOUS)`

PreviousButtonState(player: Player)

suspend fun observe(): Nothing

Subscribes to updates from Player.Events and listens to Player.EVENT_AVAILABLE_COMMANDS_CHANGED in order to determine whether the button should be enabled, i.e. respond to user input.

fun onClick(): Unit

val isEnabled: Boolean

determined by isCommandAvailable(Player.COMMAND_SEEK_TO_PREVIOUS)