nstimer - timer in iOS not working -

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i have code repeated timer in app:

(inside viewdidappear)

nsdate *date = [nsdate datewithtimeintervalsincenow: 3]; nstimer *restrictiontimer = [[nstimer alloc] initwithfiredate: date                                       interval: 3                                         target: self                                       selector:@selector(changerestriction)                                       userinfo:nil repeats:yes];

and

- (void) changerestriction {     nslog(@"inside !!"); }

however, dont see output, ?

if you're using -initwithfiredate:.. have manually add timer nsrunloop. use +scheduledtimerwithtimeinterval:.. , automatically trigger.


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