question: @ Nullable private static ActivityWrapper findLauncherActivityForDevice ( @ NotNull List < ActivityWrapper > launchableActivities , @ NotNull IDevice device ) { if ( device . supportsFeature ( IDevice . HardwareFeature . TV ) ) { return findLeanbackLauncher ( launchableActivities ) ; } return null ; }
target:  Returns a launchable activity specific to the given device. 