2014/10/15 下午 10:11:23

iphone Programming Glossary: milliseconds

What is mach_absolute_time based on on iPhone

http://stackoverflow.com/questions/1450737/what-is-mach-absolute-time-based-on-on-iphone

http://stackoverflow.com/questions/1757303/parsing-json-dates-on-iphone

I found a really good reference for it's symbols here but I quickly realized that I needed to convert the number from milliseconds to seconds. I wrote the code to do it... I'm still learning Obj C but I dont think It should've been this hard... NSDate..

How to animate the textColor property of an UILabel?

http://stackoverflow.com/questions/2426614/how-to-animate-the-textcolor-property-of-an-uilabel

a simple UIView animations block... This could probably be done pretty crudely with an NSTimer firing every couple of milliseconds each time setting the colour gradually from one to the other. I say this is crude because it would require an array or some..

Delay in playing sounds using AVAudioPlayer

http://stackoverflow.com/questions/2550480/delay-in-playing-sounds-using-avaudioplayer

self myExampleSound prepareToPlay IBAction playSound myExampleSound play This should take the lag down to about 20 milliseconds which is probably fine for your needs. If not you 耱l have to abandon AVAudioPlayer and switch to some other way of playing..

NSDate Convert milliseconds to NSDate

http://stackoverflow.com/questions/2741199/nsdate-convert-milliseconds-to-nsdate

Convert milliseconds to NSDate I have this 1273636800000 I want this Wed Mar 03 2010 00 00 00 GMT 0500 EST I need to convert this milliseconds.. to NSDate I have this 1273636800000 I want this Wed Mar 03 2010 00 00 00 GMT 0500 EST I need to convert this milliseconds to NSDate format. I tried this NSDate tr NSDate dateWithTimeIntervalSince1970 1273636800000 and NSDate tr NSDate dateWithTimeIntervalSinceReferenceDate..

How Do I write a Timer in Objective-C?

http://stackoverflow.com/questions/3519562/how-do-i-write-a-timer-in-objective-c

0.001 target self selector @selector showTime userInfo nil repeats NO and it is not working in milliseconds. It takes more than 1 millisecond. iphone objective c timer nsdate nstimer share improve this question Don't use NSTimer.. to what you want to do. What you want is a High resolution timer class using NSDate Output Total time was 0.002027 milliseconds Total time was 0.000002 seconds Total time was 0.000000 minutes Main Timer timer Timer alloc init timer startTimer Do some.. minutes Main Timer timer Timer alloc init timer startTimer Do some work timer stopTimer NSLog @ Total time was lf milliseconds timer timeElapsedInMilliseconds NSLog @ Total time was lf seconds timer timeElapsedInSeconds NSLog @ Total time was lf minutes..

iPhone: How to get current milliseconds?

http://stackoverflow.com/questions/358207/iphone-how-to-get-current-milliseconds

How to get current milliseconds What is the best way to get the current system time milliseconds iphone time share improve this question NSDate date.. How to get current milliseconds What is the best way to get the current system time milliseconds iphone time share improve this question NSDate date timeIntervalSince1970 It returns the number of seconds since epoch..

What Techniques Are Best To Live Stream iPhone Video Camera Data To a Computer?

http://stackoverflow.com/questions/3964442/what-techniques-are-best-to-live-stream-iphone-video-camera-data-to-a-computer

and a communications thread to send and rezero the buffer padded if need be to a previously specified host every x milliseconds. After you accomplish initial data transfer I would work on achieving 15fps at the lowest resolution and work my way up..

How to steal touches from UIScrollView?

http://stackoverflow.com/questions/4629499/how-to-steal-touches-from-uiscrollview

of the table view to respond immediately because if it does the table view cell will always get highlighted for a few milliseconds before the scrolling starts. The second thing I tried was to override UIView hitTest CGPoint point withEvent UIEvent event..

Are the Core Image filters in iOS 5.0 fast enough for realtime video processing?

http://stackoverflow.com/questions/6625888/are-the-core-image-filters-in-ios-5-0-fast-enough-for-realtime-video-processing

raw CPU based filters Core Image filters and GPUImage filters with live video feeds. The following were the times in milliseconds each took to apply a single gamma filter on a 640x480 video frame from the iPhone's camera for two different hardware models..

Can width/height of a powerpoint presentation be calculated on iPad

http://stackoverflow.com/questions/7230660/can-width-height-of-a-powerpoint-presentation-be-calculated-on-ipad

point on. Oh and document.all isn't populated immediately once your document is loaded UIWebView seems to need a few milliseconds to gather that and make it available. I run this 1 second after my webview has finished loading and it works great on both..

iOS - Ping with timeout

http://stackoverflow.com/questions/7437643/ios-ping-with-timeout

waiting for response too long. Windows ping command timeout I need to have w Timeout Specifies the amount of time in milliseconds to wait for the Echo Reply message that corresponds to a given Echo Request message to be received. If the Echo Reply message..

How can I get a precise time, for example in milliseconds in Objective-C?

http://stackoverflow.com/questions/889380/how-can-i-get-a-precise-time-for-example-in-milliseconds-in-objective-c

can I get a precise time for example in milliseconds in Objective C Is there an easy way to get a time very precisely I need to calculate some delays between method calls... time for where you want to start measuring from NSDate date NSDate date do work... Find elapsed time and convert to milliseconds Use modifier to conversion since receiver is earlier than now double timePassed_ms date timeIntervalSinceNow 1000.0 Documentation..