Re: NSTimer +timerWithTimeInterval:
Re: NSTimer +timerWithTimeInterval:
- Subject: Re: NSTimer +timerWithTimeInterval:
- From: Carl Hoefs via Cocoa-dev <email@hidden>
- Date: Wed, 29 Apr 2020 13:53:25 -0700
On Apr 29, 2020, at 1:43 PM, Steve Mills via Cocoa-dev
<email@hidden> wrote:
>
> On Apr 29, 2020, at 15:36:23, Carl Hoefs via Cocoa-dev
> <email@hidden> wrote:
>>
>> When I issue NSTimer's +timerWithTimeInterval::::: method, I'm getting
>> unexpected timer firing times (20X faster than expected).
>>
>> ∙ If I specify 1.0 for the time interval, my method gets called 20
>> times/sec.
>> ∙ If I specify 20.0 for the time interval, my method gets called 1 time/sec.
>> ∙ If I specify 100.0 for the time interval, my method gets called 5
>> times/sec.
>> ...etc.
>>
>> Here is my only invocation, called once and nevermore:
>>
>> NSTimer *newTimer = [NSTimer timerWithTimeInterval:1.0 // should be
>> 1/sec
>> target:self
>> selector:@selector(newData:)
>> userInfo:nil
>> repeats:YES];
>> [[NSRunLoop mainRunLoop] addTimer:newTimer
>> forMode:NSRunLoopCommonModes];
>
> Sounds like multiple timers are being installed. Set a breakpoint that logs
> when hit.
>
On break, It's always the same timer. This is with time interval set to 20.0:
<timer id> <interval> <fire date>
<__NSCFTimer: 0x60000323c600> 1.000000 Wed Apr 29 13:50:40 2020
<__NSCFTimer: 0x60000323c600> 1.000000 Wed Apr 29 13:50:41 2020
<__NSCFTimer: 0x60000323c600> 1.000000 Wed Apr 29 13:50:42 2020
. . .
-Carl
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