Don't fire the DispatcherTimer every second. Fire it more frequently...…

Question

Asked: May 14, 20262026-05-14T00:39:05+00:00 2026-05-14T00:39:05+00:00

NSString *msg = [[NSString alloc]initWithFormat:@Hello %s, What do you do, (self.isUser ? @User :

    NSString *msg = [[NSString alloc]initWithFormat:@"Hello %s, What do you do", (self.isUser ? @"User" : @"Guest")];
    NSLog(msg);

When I print the msg, it show that this is “†¶·»,”, instead of user/guest, what’s happen?

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Editorial Team · Answer 1 · 2026-05-14T00:39:05+00:00

Editorial Team

You need to use “%@” instead of “%s” on your format string if you are using NSString instances. Like this:

NSString *msg = 
   [[NSString alloc]initWithFormat:@"Hello %@, What do you do", (self.isUser ? @"User" : @"Guest")];