NSTimer.timerWithTimeInterval ?
Hi, Noob to both MacRuby and Cocoa/Objective-C here (but not Ruby) so please forgive is this is obvious but when I try to call timer = NSTimer.timerWithTimeInterval(60, self, 'recheckAndUpdateTitle:', nil, true) NSRunLoop.currentRunLoop.addTimer(timer) I get: undefined method `timerWithTimeInterval' for NSTimer:Class (NoMethodError) which is very confusing given: http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Founda... and http://stackoverflow.com/questions/1449035/how-do-i-use-nstimer What am I missing here? Any advice appreciated!? -- Thanks in advance, /Robert Feldt
On Nov 7, 2011, at 11:33 AM, Robert Feldt wrote:
Hi,
Noob to both MacRuby and Cocoa/Objective-C here (but not Ruby) so please forgive is this is obvious but when I try to call
timer = NSTimer.timerWithTimeInterval(60, self, 'recheckAndUpdateTitle:', nil, true) NSRunLoop.currentRunLoop.addTimer(timer)
I get:
undefined method `timerWithTimeInterval' for NSTimer:Class (NoMethodError)
which is very confusing given:
http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Founda...
and
http://stackoverflow.com/questions/1449035/how-do-i-use-nstimer
What am I missing here? Any advice appreciated!?
Here is a paste from my program where I successfully set up and use a timer. Looks like I used a slightly different method from the same API. Hope it helps: class LevelView < NSView attr_accessor :keyboard_view def initWithFrame frame $game = Game.new(self) super(frame) @timer = NSTimer.scheduledTimerWithTimeInterval 1.0/FPS, target:self, selector:'doTick:', userInfo:nil, repeats:true NSRunLoop.currentRunLoop.addTimer @timer, forMode:NSModalPanelRunLoopMode NSRunLoop.currentRunLoop.addTimer @timer, forMode:NSEventTrackingRunLoopMode -- Elliot Temple http://beginningofinfinity.com/
Take the calling param sequence and turn it into a 1.9 hash statement in order :) timer = NSTimer.timerWithTimeInterval 60, target: self, selector: 'recheckAndUpdateTitle:', userInfo: nil, repeats: true because this is the actual selector: timerWithTimeInterval:target:selector:userInfo:repeats: On Nov 7, 2011, at 2:33 PM, Robert Feldt wrote:
Hi,
Noob to both MacRuby and Cocoa/Objective-C here (but not Ruby) so please forgive is this is obvious but when I try to call
timer = NSTimer.timerWithTimeInterval(60, self, 'recheckAndUpdateTitle:', nil, true) NSRunLoop.currentRunLoop.addTimer(timer)
I get:
undefined method `timerWithTimeInterval' for NSTimer:Class (NoMethodError)
which is very confusing given:
http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Founda...
and
http://stackoverflow.com/questions/1449035/how-do-i-use-nstimer
What am I missing here? Any advice appreciated!?
-- Thanks in advance,
/Robert Feldt _______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
Thanks guys, I'll try to read up on some more tutorials before making a fool of myself again... ;) Cheers, Robert On Mon, Nov 7, 2011 at 8:42 PM, Richard Kilmer <rich@infoether.com> wrote:
Take the calling param sequence and turn it into a 1.9 hash statement in order :)
timer = NSTimer.timerWithTimeInterval 60, target: self, selector: 'recheckAndUpdateTitle:', userInfo: nil, repeats: true
because this is the actual selector: timerWithTimeInterval:target:selector:userInfo:repeats:
On Nov 7, 2011, at 2:33 PM, Robert Feldt wrote:
Hi,
Noob to both MacRuby and Cocoa/Objective-C here (but not Ruby) so please forgive is this is obvious but when I try to call
timer = NSTimer.timerWithTimeInterval(60, self, 'recheckAndUpdateTitle:', nil, true) NSRunLoop.currentRunLoop.addTimer(timer)
I get:
undefined method `timerWithTimeInterval' for NSTimer:Class (NoMethodError)
which is very confusing given:
http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Founda...
and
http://stackoverflow.com/questions/1449035/how-do-i-use-nstimer
What am I missing here? Any advice appreciated!?
-- Thanks in advance,
/Robert Feldt _______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
_______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
-- Best regards, /Robert Feldt -- Tech. Dr. (PhD), Assoc. Professor in Software Engineering Chalmers, Software Engineering Dept Blekinge Institute of Technology, Software Engineering Research Lab robert.feldt (a) chalmers.se or robert.feldt (a) gmail.com Mobile phone: +46 (0) 733 580 580 http://www.cse.chalmers.se/~feldt
Here is an example of a small game written entirely in MacRuby and which uses NSTimer to run the game loop: https://github.com/mattetti/phileas_frog/blob/master/game_loop.rb#L32-36 I hope it helps, - Matt On Mon, Nov 7, 2011 at 11:54 AM, Robert Feldt <robert.feldt@gmail.com>wrote:
Thanks guys, I'll try to read up on some more tutorials before making a fool of myself again... ;)
Cheers,
Robert
On Mon, Nov 7, 2011 at 8:42 PM, Richard Kilmer <rich@infoether.com> wrote:
Take the calling param sequence and turn it into a 1.9 hash statement in order :)
timer = NSTimer.timerWithTimeInterval 60, target: self, selector: 'recheckAndUpdateTitle:', userInfo: nil, repeats: true
because this is the actual selector: timerWithTimeInterval:target:selector:userInfo:repeats:
On Nov 7, 2011, at 2:33 PM, Robert Feldt wrote:
Hi,
Noob to both MacRuby and Cocoa/Objective-C here (but not Ruby) so please forgive is this is obvious but when I try to call
timer = NSTimer.timerWithTimeInterval(60, self, 'recheckAndUpdateTitle:', nil, true) NSRunLoop.currentRunLoop.addTimer(timer)
I get:
undefined method `timerWithTimeInterval' for NSTimer:Class (NoMethodError)
which is very confusing given:
http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Founda...
and
http://stackoverflow.com/questions/1449035/how-do-i-use-nstimer
What am I missing here? Any advice appreciated!?
-- Thanks in advance,
/Robert Feldt _______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
_______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
-- Best regards,
/Robert Feldt -- Tech. Dr. (PhD), Assoc. Professor in Software Engineering Chalmers, Software Engineering Dept Blekinge Institute of Technology, Software Engineering Research Lab robert.feldt (a) chalmers.se or robert.feldt (a) gmail.com Mobile phone: +46 (0) 733 580 580 http://www.cse.chalmers.se/~feldt _______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
Yes, thanks again. What "got me" here is that the error message complained that the method wasn't there so I didn't really consider looking at the formatting of the parameters. I realize now that MacRuby probably does method lookup/disambiguation based on the "param names" (or what they are called in objective-c). So a suggestion to the MacRuby team would be to try to make the error message indicate this in some way if possible. So instead of simply: undefined method `scheduledTimerWithTimeInterval' for NSTimer:Class (NoMethodError) Something like: undefined method `scheduledTimerWithTimeInterval' (or missing/use of parameters) for NSTimer:Class (NoMethodError) would be helpful and imho more "true". OTOH this might make it into an ArgumentError so not easy to handle... Regards, Robert On Tue, Nov 8, 2011 at 12:32 AM, Matt Aimonetti <mattaimonetti@gmail.com> wrote:
Here is an example of a small game written entirely in MacRuby and which uses NSTimer to run the game loop: https://github.com/mattetti/phileas_frog/blob/master/game_loop.rb#L32-36 I hope it helps, - Matt
On Mon, Nov 7, 2011 at 11:54 AM, Robert Feldt <robert.feldt@gmail.com> wrote:
Thanks guys, I'll try to read up on some more tutorials before making a fool of myself again... ;)
Cheers,
Robert
On Mon, Nov 7, 2011 at 8:42 PM, Richard Kilmer <rich@infoether.com> wrote:
Take the calling param sequence and turn it into a 1.9 hash statement in order :)
timer = NSTimer.timerWithTimeInterval 60, target: self, selector: 'recheckAndUpdateTitle:', userInfo: nil, repeats: true
because this is the actual selector: timerWithTimeInterval:target:selector:userInfo:repeats:
On Nov 7, 2011, at 2:33 PM, Robert Feldt wrote:
Hi,
Noob to both MacRuby and Cocoa/Objective-C here (but not Ruby) so please forgive is this is obvious but when I try to call
timer = NSTimer.timerWithTimeInterval(60, self, 'recheckAndUpdateTitle:', nil, true) NSRunLoop.currentRunLoop.addTimer(timer)
I get:
undefined method `timerWithTimeInterval' for NSTimer:Class (NoMethodError)
which is very confusing given:
http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Founda...
and
http://stackoverflow.com/questions/1449035/how-do-i-use-nstimer
What am I missing here? Any advice appreciated!?
-- Thanks in advance,
/Robert Feldt _______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
_______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
-- Best regards,
/Robert Feldt -- Tech. Dr. (PhD), Assoc. Professor in Software Engineering Chalmers, Software Engineering Dept Blekinge Institute of Technology, Software Engineering Research Lab robert.feldt (a) chalmers.se or robert.feldt (a) gmail.com Mobile phone: +46 (0) 733 580 580 http://www.cse.chalmers.se/~feldt _______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
_______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
-- Best regards, /Robert Feldt -- Tech. Dr. (PhD), Assoc. Professor in Software Engineering Chalmers, Software Engineering Dept Blekinge Institute of Technology, Software Engineering Research Lab robert.feldt (a) chalmers.se or robert.feldt (a) gmail.com Mobile phone: +46 (0) 733 580 580 http://www.cse.chalmers.se/~feldt
Thanks Robert for the feedback. The challenge is that technically, the param keys are part of the method signature. In Objective-C, this is called a selector and you can define multiple methods taking different "keyword arguments" and therefore somewhat overloading the method. This is a very common approach in Cocoa for instance. So to implement what you are suggesting we would have to do some voodoo to lookup methods which might have a similar selector. That said, I think it's a fair feedback and it's great to hear some of the issues new users are facing. Thanks, - Matt On Tue, Nov 8, 2011 at 3:39 AM, Robert Feldt <robert.feldt@gmail.com> wrote:
Yes, thanks again. What "got me" here is that the error message complained that the method wasn't there so I didn't really consider looking at the formatting of the parameters. I realize now that MacRuby probably does method lookup/disambiguation based on the "param names" (or what they are called in objective-c).
So a suggestion to the MacRuby team would be to try to make the error message indicate this in some way if possible.
So instead of simply:
undefined method `scheduledTimerWithTimeInterval' for NSTimer:Class (NoMethodError)
Something like:
undefined method `scheduledTimerWithTimeInterval' (or missing/use of parameters) for NSTimer:Class (NoMethodError)
would be helpful and imho more "true". OTOH this might make it into an ArgumentError so not easy to handle...
Regards,
Robert
On Tue, Nov 8, 2011 at 12:32 AM, Matt Aimonetti <mattaimonetti@gmail.com> wrote:
Here is an example of a small game written entirely in MacRuby and which uses NSTimer to run the game loop: https://github.com/mattetti/phileas_frog/blob/master/game_loop.rb#L32-36 I hope it helps, - Matt
On Mon, Nov 7, 2011 at 11:54 AM, Robert Feldt <robert.feldt@gmail.com> wrote:
Thanks guys, I'll try to read up on some more tutorials before making a fool of myself again... ;)
Cheers,
Robert
On Mon, Nov 7, 2011 at 8:42 PM, Richard Kilmer <rich@infoether.com>
wrote:
Take the calling param sequence and turn it into a 1.9 hash statement in order :)
timer = NSTimer.timerWithTimeInterval 60, target: self, selector: 'recheckAndUpdateTitle:', userInfo: nil, repeats: true
because this is the actual selector: timerWithTimeInterval:target:selector:userInfo:repeats:
On Nov 7, 2011, at 2:33 PM, Robert Feldt wrote:
Hi,
Noob to both MacRuby and Cocoa/Objective-C here (but not Ruby) so please forgive is this is obvious but when I try to call
timer = NSTimer.timerWithTimeInterval(60, self, 'recheckAndUpdateTitle:', nil, true) NSRunLoop.currentRunLoop.addTimer(timer)
I get:
undefined method `timerWithTimeInterval' for NSTimer:Class (NoMethodError)
which is very confusing given:
http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Founda...
and
http://stackoverflow.com/questions/1449035/how-do-i-use-nstimer
What am I missing here? Any advice appreciated!?
-- Thanks in advance,
/Robert Feldt _______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
_______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
-- Best regards,
/Robert Feldt -- Tech. Dr. (PhD), Assoc. Professor in Software Engineering Chalmers, Software Engineering Dept Blekinge Institute of Technology, Software Engineering Research Lab robert.feldt (a) chalmers.se or robert.feldt (a) gmail.com Mobile phone: +46 (0) 733 580 580 http://www.cse.chalmers.se/~feldt _______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
_______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
-- Best regards,
/Robert Feldt -- Tech. Dr. (PhD), Assoc. Professor in Software Engineering Chalmers, Software Engineering Dept Blekinge Institute of Technology, Software Engineering Research Lab robert.feldt (a) chalmers.se or robert.feldt (a) gmail.com Mobile phone: +46 (0) 733 580 580 http://www.cse.chalmers.se/~feldt _______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
participants (4)
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Elliot Temple
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Matt Aimonetti
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Richard Kilmer
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Robert Feldt