public static void w(String tag, String message, Object... args) {
        sLogger.w(tag, message, args);
    }
public static void w ( String tag , String message , Object ... args ) { sLogger . w ( tag , message , args ) ; }
Send a warning log message to the logger.

@param tag     Used to identify the source of a log message.  It usually identifies
the class or activity where the log call occurs.
@param message The message you would like logged. This message may contain string formatting
which will be replaced with values from args.
@param args    Arguments for string formatting.