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2014/10/15 ¤U¤È 10:05:53
iphone Programming Glossary: cycleDoes Apple reject Leaking iPhone apps? http://stackoverflow.com/questions/1136511/does-apple-reject-leaking-iphone-apps a game that leaks a very small amount of data 32 bytes at a time about once or twice a minute. Since the play cycle of the game ranges from 3 to 10 minutes I know this is not going to be a big deal. So shall I invest time in tracking and..
How Can I get Direction on an iPhone iOS 6 App in Xcode from A to B? http://stackoverflow.com/questions/12636707/how-can-i-get-direction-on-an-iphone-ios-6-app-in-xcode-from-a-to-b App. With iOS 6 the same instructions posted below obviously open Safari instead Google Maps. I want to write an if cycle that checks the iOS installed on the device if 6 nothing changed if iOS 6 then..... open new apple maps and get direction..
What does the Tiler Utilization statistic mean in the iPhone OpenGL ES instrument? http://stackoverflow.com/questions/1287811/what-does-the-tiler-utilization-statistic-mean-in-the-iphone-opengl-es-instrumen share improve this question The Tiler Utilization and Renderer Utilization percentages measure the duty cycle of the vertex and fragment processing hardware respectively. On the MBX Tiler Utilization typically scales with the amount..
UIPickerView: last value followed by first value http://stackoverflow.com/questions/1291426/uipickerview-last-value-followed-by-first-value assuming there are 3 NSStrings in pickerData ROW RETURNS 0 0 1 1 2 2 3 0 4 1 5 2 6 0 7 1 8 2 etc... It will just cycle 0 through the length of the array. The confusing stuff in viewDidLoad just picks a value as close to the middle as possible..
http://stackoverflow.com/questions/1420131/iphone-text-glow-effect my IPhone application I want the text in UILabel to glow for a second then fade for a sec . Also i want to repeat this cycle for say 3 or 4 times. Is this possible iphone animation graphics glow graphic effects share improve this question As..
Custom UIPickerView with three Components each showing label on Selection Indicator http://stackoverflow.com/questions/16734557/custom-uipickerview-with-three-components-each-showing-label-on-selection-indica seems like a misnomer but that will soon be corrected. CGFloat rightsideofwheel self.frame.size.width widthofwheels 2 cycle through all wheels for int component 0 component self.numberOfComponents component find the right side of the wheel rightsideofwheel..
iPhone In-App Purchase Store Kit error -1003 “Cannot connect to iTunes Store” http://stackoverflow.com/questions/1717700/iphone-in-app-purchase-store-kit-error-1003-cannot-connect-to-itunes-store Kit yay . During testing I exercised my app in a way which caused the app to crash mid purchase so I guess the normal cycle of receiving paymentQueue updatedTransactions and calling finishTransaction was interrupted . Now I am unable to successfully..
Measuring velocity via iPhone SDK http://stackoverflow.com/questions/1994018/measuring-velocity-via-iphone-sdk approach they took. EDIT I've got a working prototype that uses the LocationManager API. It works OK but the update cycle is far from ideal for a real time measurement of velocity. Depending on circumstances it can take up to 4 5 seconds sometimes..
Is it a problem when an iAd may be obscured? http://stackoverflow.com/questions/4160010/is-it-a-problem-when-an-iad-may-be-obscured onscreen at which point it will begin asking the ad server for more ads and you'll get more delegate messages and the cycle begins anew. So to sum up It's only a problem if your iAd is obscured if you'd like to serve more iAds and get paid. However..
Mysterious “progressive slowing” problem in run loop / drawRect http://stackoverflow.com/questions/4786754/mysterious-progressive-slowing-problem-in-run-loop-drawrect with two lines of code. However when you do this there is a mysterious problem the time taken for each drawing cycle increases each time becoming unusable . Further the time can vary erratically. Is this a known iOS bug or Has anyone seen..
What do “Dirty” and “Resident” mean in relation to Virtual Memory? http://stackoverflow.com/questions/5176074/what-do-dirty-and-resident-mean-in-relation-to-virtual-memory data structures you could cause the garbage collector to mark a lot of memory as dirty having each garbage collection cycle take longer than required. Keeping this number low means your program will run faster and will be less likely to experience..
viewdidunload is not getting called at all http://stackoverflow.com/questions/5594410/viewdidunload-is-not-getting-called-at-all view controller in these contexts plus a couple other contexts on iPad then you can reliably manage your view's life cycle via the loadView viewDidLoad viewWillAppear animated viewDidAppear animated viewWillDisappear animated and viewDidDisappear..
Am I abusing UIViewController Subclassing? http://stackoverflow.com/questions/5691226/am-i-abusing-uiviewcontroller-subclassing these methods itself to give subclasses a chance to take some action at an interesting point in the controller's life cycle. If UIViewController subclasses can't be counted on to call viewWillAppear why not just call that method manually and be..
How can I improve the performance of my custom OpenGL ES 2.0 depth texture generation? http://stackoverflow.com/questions/6051237/how-can-i-improve-the-performance-of-my-custom-opengl-es-2-0-depth-texture-gener 18 to 35 ms on iPhone 4 . According to the PowerVR PVRUniSCo compiler part of their SDK this shader uses 11 GPU cycles at best 16 cycles at worst. I'm aware that you're advised not to use branching in a shader but in this case that led to.. on iPhone 4 . According to the PowerVR PVRUniSCo compiler part of their SDK this shader uses 11 GPU cycles at best 16 cycles at worst. I'm aware that you're advised not to use branching in a shader but in this case that led to better performance.. 1.0 2.0 normalizedDepth 1.0 it takes 18 35 ms on iPad 1 but only 1.7 2.4 ms on iPhone 4. The estimated GPU cycle count for this shader is 8 cycles. The change in render time based on cycle count doesn't seem linear. Finally if I just..
How can I write an iPhone app entirely in JavaScript without making it just a web app? http://stackoverflow.com/questions/64420/how-can-i-write-an-iphone-app-entirely-in-javascript-without-making-it-just-a-we to learn. But since I already have this app existing in JS and I know it works in Safari this is a much faster dev cycle for me. Some day I'm sure I'll have to break down and learn Obj C. A few other resources I found helpful Calling Obj C from..
What is the Life Cycle of an iPhone application? [closed] http://stackoverflow.com/questions/6519847/what-is-the-life-cycle-of-an-iphone-application is the Life Cycle of an iPhone application closed Can anyone explain what is the life cycle process of iPhone i.e from the start to end of the application life cycle. iphone objective c ios ios4 share improve.. closed Can anyone explain what is the life cycle process of iPhone i.e from the start to end of the application life cycle. iphone objective c ios ios4 share improve this question See also This post on Cocoanetics that present a very useful..
Retain Cycles: Why is that such a bad thing? http://stackoverflow.com/questions/791322/retain-cycles-why-is-that-such-a-bad-thing This usually takes care of itself and works ok without any careful thinking. If you've got a group of objects with no cycles and you drop your reference to the root object then it will be deleted this means references it has to objects it owns.. counts go to zero. They'll be deleted and the cascade will cause all objects to be deleted. But... if you have a cycle this cascade doesn't work. You may have a group of objects and you don't want them any more so you drop the only reference.. and you don't want them any more so you drop the only reference you have to these objects but because there is a cycle the objects reference each other. This means their reference counts never go to zero and they don't get deleted. This is..
Crash when adding persistent store (iCloud enabled) in app delegate http://stackoverflow.com/questions/8021753/crash-when-adding-persistent-store-icloud-enabled-in-app-delegate in object valueForKey key relSet addObject toManyObject else relSet addObject object valueForKey key cycle through objects for NSManagedObject subObject in relSet NSManagedObject newSubObject NSEntityDescription insertNewObjectForEntityForName..
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