PlayerView
<com.google.android.exoplayer2.ui.PlayerView android:id="@+id/exoplayerView" android:layout_width="match_parent" android:layout_height="match_parent" app:controller_layout_id="@layout/layout_exoplayer_control_views" app:use_controller="true">StyledPlayerView
<com.google.android.exoplayer2.ui.StyledPlayerView android:id="@+id/exoplayerView" android:layout_width="match_parent" android:layout_height="match_parent" app:controller_layout_id="@layout/layout_exoplayer_control_views" app:use_controller="true">app:controller_layout_id , entonces, ¿por qué hay dos tipos diferentes de jugadores?