ANDROID FAQ: Can the in-player cast button be hidden? (Android v4)

Answer: Yes. You can use a UiConfig.


The in-player Cast button can be disabled by using a UiConfig in the PlayerConfig.


UiConfig uiConfig = new UiConfig.Builder()
        .hide(UiGroup.CASTING_MENU)
        .build();
        
PlayerConfig playerConfig = new PlayerConfig.Builder()
        .uiConfig(uiConfig)
        .build();
        
player.setup(playerConfig)