NSTimer is not getting stopped?

Str_Message isEqualToString:ON should be like this str_Message isEqualToString:@"ON" similarly for the comparison with OFF. Use OFF.

Str_Message isEqualToString:ON should be like this str_Message isEqualToString:@"ON". Similarly for the comparison with OFF. Use @"OFF".

That is not issue, as the condition is getting true... but the timer value is nil is the issue. When the off command is received – iPhone Fun Aug 4 at 12:41 Well, if ON is declared as NSString* ON = @"ON"; and OFF similarly, there would be no problem with this part. – progrmr Aug 4 at 12:43 @iPhone Fun: Are OFF and ON defined as constants?

– Evan Mulawski Aug 4 at 12:44 Then if you have a retain property on the timer then use the getter method to invalidate it. – Praveen S Aug 4 at 12:45 @evan Yes these are string constants – iPhone Fun Aug 4 at 12:51.

If you've got a property declared for the timer, you should use it. For instance, if your timer is defined as @property (nonatomic, retain) NSTimer *myTimer; you should refer to it as self. MyTimer and set it using that setter and invalidate it later using the accessor.It looks like you're not setting tmr_CallWebService to your timer ivar at any place so you're just leaking and losing the reference.

I think you just need to replace tmr_CallWebService with timer.

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