MediaSession extension play() not resuming a player in READY state

[loki666]

[REQUIRED] Issue description

Using the mediasession extension, the play doesnt works if the player is in READY state.

[REQUIRED] Reproduction steps

Prepare the player, and call TransportControls.play()
nothing is happening because the MediaSessionCompat.Callback.play() does nothing when the player is in READY state.
Same goes if you pause() a playing player. Pausing the player works, but it's impossible to resume it.

[REQUIRED] Link to test content

any content will do

[REQUIRED] A full bug report captured from the device

no crash

[REQUIRED] Version of ExoPlayer being used

2.10.2

[REQUIRED] Device(s) and version(s) of Android being used

any device / emulator

[tonihei]

@marcbaechinger Can you take a look?

[marcbaechinger]

Yep, that's wrong. I'll provide a fix asap.

[georgi-neykov-hub]

@marcbaechinger , is it possible to just match the logic in PlayerControlView#1232? Or maybe, just call controlDispatcher.dispatchSetPlayWhenReady(player, true) if the current player's state is Player.STATE_READY?