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2014/10/15 ¤U¤È 10:15:03
iphone Programming Glossary: trackingReal-time Pitch Shifting on the iPhone http://stackoverflow.com/questions/1100495/real-time-pitch-shifting-on-the-iphone know I am not the first one. However I cannot find any examples of it being done. iphone audio core audio pitch pitch tracking share improve this question you can use dirac 2 from dsp dimension for pitch shifting on the iphone. quote DIRAC2 is..
iPhone App floating point calculations when released to the app store. http://stackoverflow.com/questions/14210621/iphone-app-floating-point-calculations-when-released-to-the-app-store is not featured in the method anywhere and as I can't recreate this in the simulator I am having a hard time tracking this down. A few questions Can I debug the live version of my app Attach XCode to my running App Store downloaded instance..
HowTo initialise MKMapView with a given user location? http://stackoverflow.com/questions/1437568/howto-initialise-mkmapview-with-a-given-user-location and centers to the right place. Now here's the tricky part the blue marble 'throbber' is a feature of the mapview tracking user location. You'll have to momentarily 'fake it' until the real one kicks in or just use a separate marker for the current.. as the image for a custom annotation view. If you want it to actively follow the map you can enable the userlocation tracking of the mapview and when it gets the actual data you hide your previously set marker and let the mapview do the updating... can stuff the last known location into the custom bluemarble annotation and show it. Toggle on off the userLocation tracking and when you get the notification the same hide the annotation show the real marble trick will work. The mapview's own location..
Notification of changes to the iPhone's /Documents directory http://stackoverflow.com/questions/3181821/notification-of-changes-to-the-iphones-documents-directory on the Apple Developer Forums may be of interest in which it is suggested that you run a kqueue in its own thread tracking the app's Documents folder. An Apple tech followed up with some sample code here void kqueueFired int kq struct kevent event..
Understanding the memory consumption on iPhone http://stackoverflow.com/questions/363493/understanding-the-memory-consumption-on-iphone but the Memory Monitor can ™t tell you where exactly the memory goes. The Object Alloc tool is almost useless for tracking the real memory usage. When I create a texture the allocated memory counter goes up for a while reading the texture into..
HTML5 inline video on iPhone vs iPad/Browser http://stackoverflow.com/questions/3699552/html5-inline-video-on-iphone-vs-ipad-browser native video player on a new window on top of all my stuff. That means I lose access to my custom controls and time tracking written in Javascript since the video is now running isolated. Is there any way to override Apple's control of HTML5 video..
How can you track motion using the iPhone's camera? http://stackoverflow.com/questions/3933716/how-can-you-track-motion-using-the-iphones-camera Does anyone know of any code examples or other information about using the iPhone camera for detecting objects and tracking them iphone augmented reality motion motion detection share improve this question I just gave a talk at SecondConf.. colored object which you can track as it moves across the view of the camera. While this doesn't address the case of tracking a more complex object like a foot shaders like this should be able to be written that could pick out such a moving object...
My custom UI elements are not being updated while UIScrollView is scrolled http://stackoverflow.com/questions/4109898/my-custom-ui-elements-are-not-being-updated-while-uiscrollview-is-scrolled mode possibly in addition to the default mode . I believe NSRunLoopCommonModes includes both the default and event tracking modes so you can just do this NSTimer timer NSTimer timerWithTimeInterval 0.42 target foo selector @selector doSomething..
Disable UIScrollView scrolling when UITextField becomes first responder http://stackoverflow.com/questions/4585718/disable-uiscrollview-scrolling-when-uitextfield-becomes-first-responder struggling with the same problem and at last I've found a solution. I've investigated how the auto scroll is done by tracking the call trace and found that an internal UIFieldEditor scrollSelectionToVisible is called when a letter is typed into the..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events and keeps track of the count of Cellular WiFi data you've used. I suspect that the developer is registering his app as tracking location changes but the location services icon isn't visible while the app is running which I thought was a requirement...
Is there a way to make drawRect work right NOW? http://stackoverflow.com/questions/4739748/is-there-a-way-to-make-drawrect-work-right-now values. In this example the UI is only updated at the end of the operation but if you wanted continuous progress tracking in your UI you could place the dispatch to the main queue where ever you needed a UI update to be performed. For older OS..
How do you detect memory leaks on iPhone? http://stackoverflow.com/questions/494327/how-do-you-detect-memory-leaks-on-iphone
UILabel updating stops during scrolling UIScrollView http://stackoverflow.com/questions/5377914/uilabel-updating-stops-during-scrolling-uiscrollview scrolling the NSTimer is not updated because the run loops run in a different mode NSRunLoopCommonModes mode used for tracking events . The solution is adding your timer to the NSRunLoopModes just after creation NSTimer elapsedTimeTimer NNSTimer scheduledTimerWithTimeInterval..
NSDefaultRunLoopMode vs NSRunLoopCommonModes http://stackoverflow.com/questions/7222449/nsdefaultrunloopmode-vs-nsrunloopcommonmodes As soon as some mouse dragging Mac OS or touch on iOS event happens then the mode for this run loop is set to event tracking this means that the thread will not be woke up on new network events but these events will be delivered later when the user.. associate the input sources to all modes that are or will be associated to the common mode . Of course event tracking mode is part of this family of modes so the method applied on NSURLConnection 's instance means please associate the connection.. of modes so the method applied on NSURLConnection 's instance means please associate the connection source events to tracking mode in addition to default mode . Finally you can add new modes to the common modes but this is a quite low level operation...
iMessage Style Receding Keyboard in an iOS App http://stackoverflow.com/questions/7780753/imessage-style-receding-keyboard-in-an-ios-app textField.inputAccessoryView.superview.frame return Add methods to track touched and update keyboard view stops tracking touches to divider void touchesEnded NSSet touches withEvent UIEvent event CGRect newFrame CGRect bounds UIScreen mainScreen..
iOS background application network access http://stackoverflow.com/questions/9613357/ios-background-application-network-access background application network access I have an application that requires location tracking and I think it fits squarely within one of the allowable background models. However I need to post to a network service..
iPhone Data Usage Monitoring [duplicate] http://stackoverflow.com/questions/4380806/iphone-data-usage-monitoring Data Usage Monitoring duplicate Possible Duplicate iPhone Data Usage Tracking Monitoring I'm trying to build a Data Usage Monitoring iphone app as a quick demo but haven't been able to figure out how..
Tracking variable or memory change in XCode? http://stackoverflow.com/questions/4801175/tracking-variable-or-memory-change-in-xcode variable or memory change in XCode Is there any way to track variable changes or memory change in xcode The one like in..
How to set accuracy and distance filter when using MKMapView http://stackoverflow.com/questions/5930612/how-to-set-accuracy-and-distance-filter-when-using-mkmapview requesting permission To setup core location self.locationManager CLLocationManager new self.locationManager.purpose @ Tracking your movements on the map. self.locationManager.delegate self Pinpoint our location with the following accuracy kCLLocationAccuracyBestForNavigation..
Tracking iOS installs from multiple marketing sources http://stackoverflow.com/questions/6231351/tracking-ios-installs-from-multiple-marketing-sources iOS installs from multiple marketing sources Use Case I plan on marketing iOS apps that I own operate. I plan on marketing..
http://stackoverflow.com/questions/6690435/autostart-of-an-iphone-app of an iphone app I am building GPS Tracking app. I want the tracking functionality to be started after a reboot of device. Now I did with background compatibility It..
Why is Geolocation in Mobile Safari way less accurate than the location in a native App? http://stackoverflow.com/questions/6790368/why-is-geolocation-in-mobile-safari-way-less-accurate-than-the-location-in-a-nat more accurate results when testing on other places larger city but am now wondering if the native Apps also use Motion Tracking to update the location. Which would explain why the Maps App can track my steps while Safari doesn't recognize them. Update..
FFT on iPhone to ignore background noise and find lower pitches http://stackoverflow.com/questions/7181630/fft-on-iphone-to-ignore-background-noise-and-find-lower-pitches
iPhone Data Usage Tracking/Monitoring http://stackoverflow.com/questions/7946699/iphone-data-usage-tracking-monitoring Data Usage Tracking Monitoring I've searched over this topic but found very few details which were helpful. With these details I've tried to..
Tracking audio (level of intensity) - android/iphone http://stackoverflow.com/questions/8324463/tracking-audio-level-of-intensity-android-iphone audio level of intensity android iphone Is it possible to retrieve the characteristics of the audio output signal dedicated..
iPhone: Tracking/Identifying individual touches http://stackoverflow.com/questions/913086/iphone-tracking-identifying-individual-touches Tracking Identifying individual touches I have a quick question regarding tracking touches on the iPhone and I seem to not be able..
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