React-native Socket Event Output in console

When running react-native in Xcode, can not avoid to view the log information, but the react-native socket in the log is simply too much, often just see the information they want to see, the moment is the latest log to brush up similar:

nw_socket_handle_socket_event [C5255.1:1] Socket SO_ERROR [61: Connection refused]
nw_socket_handle_socket_event [C5255.2:1] Socket SO_ERROR [61: Connection refused]
nw_connection_get_connected_socket [C5255] Client called nw_connection_get_connected_socket on unconnected nw_connection

Looks like error but does not affect the operation of your own program, solve this print:

Click Product, Scheme, Edit scheme, Run, Arguments, Environment Variable

Add Name:os_activity_mode; Value:disable

React-native Socket Event Output in console