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2014/10/15 ¤U¤È 10:12:52
iphone Programming Glossary: presumablyhttp://stackoverflow.com/questions/10344637/capture-60fps-in-iphone-app you a stable super smooth capture. How to capture frames into a file @60fps Capturing frames is all very well but presumably you want to keep them. As Brad noted in the comments writing those frames to a file is another story. Sadly no matter what..
iPhone - Splash Screen with progress bar http://stackoverflow.com/questions/1397426/iphone-splash-screen-with-progress-bar you can create a seamless transition from the original Default.png to a view that you can add a progress bar to. Now presumably you have created a view or similar and you are updating a progress bar every so often in order to give the user some feedback...
How can I skip compressing one PNG? http://stackoverflow.com/questions/2051947/how-can-i-skip-compressing-one-png File Type from image.png to file . This is actually the default when you add a file without an extension which is presumably why iTunesArtwork doesn't have one. But if you're pedantic like me you checked the File Type setting and fixed it. share..
Pixel-Position of Cursor in UITextView http://stackoverflow.com/questions/2633379/pixel-position-of-cursor-in-uitextview return cursor I used NSCharacterSet whitespaceAndNewlineCharacterSet to find word boundaries. This can also be done presumably more efficiently using CTFrameSetter in Core Text but that is not available in iPhone OS 3.1.3 so if you're targeting the..
Hiding Safari User Interface Components on iPhone http://stackoverflow.com/questions/273671/hiding-safari-user-interface-components-on-iphone 0 1 Works on iPhone but not in iPad. I have been successful hiding the browser components on iPad so presumably everywhere by using meta name apple mobile web app capable content yes and launching from a home screen link. I am also..
What is the optimal way to monitor changes in a directory with a kqueue()? http://stackoverflow.com/questions/2972563/what-is-the-optimal-way-to-monitor-changes-in-a-directory-with-a-kqueue when the user manipulates files into my app's section in iTunes. Thus I need to monitor the directory for changes presumably via an efficient mechanism like a kqueue . How do I implement this so that I know that the files have finished copying I..
My view is displaying y=-20 dispite its frame set to y=0. After rotation it snaps back to y=0 http://stackoverflow.com/questions/3032773/my-view-is-displaying-y-20-dispite-its-frame-set-to-y-0-after-rotation-it-snap adBannerView or button... will snap into the correct place at y 0. I've tried setting adBannerView's y location to 20 presumably to compensate for the status bar and that makes everything display correctly until I change orientation. Then everything..
How to convert .caf to .mp3 file programmatically on the iPhone or iPad? http://stackoverflow.com/questions/3474547/how-to-convert-caf-to-mp3-file-programmatically-on-the-iphone-or-ipad
iOS multitasking for an Audio Recording application http://stackoverflow.com/questions/3848172/ios-multitasking-for-an-audio-recording-application capture audio in the background iphone ios core audio share improve this question You can. Skype does this. You presumably need to set key UIBackgroundModes key array string audio string array in Info.plist and you need to make sure that the audio.. music whatever when your app is in the background . The docs say that audio lets you play audio in the background but presumably this also applies to recording audio. If it doesn't work there are a few things you could try Set both voip and audio ...
Is there a way to instantiate a NSManagedObject without inserting it? http://stackoverflow.com/questions/3868514/is-there-a-way-to-instantiate-a-nsmanagedobject-without-inserting-it fundamental problem with using a nil MOC Objects in different MOCs aren't supposed to reference each other &mdash this presumably also applies when one side of a relationship has a nil MOC. What happens if you save What happens when another part of your.. are plenty of things you can do like NSCoding . You might be able to use NSManagedObject isInserted in NSPredicate presumably it's YES between inserting and successfully saving . Alternatively you can use a transient property with the same behaviour..
Placing a custom view based UIBarButtonItem in the navigation bar without default horizontal padding http://stackoverflow.com/questions/4715280/placing-a-custom-view-based-uibarbuttonitem-in-the-navigation-bar-without-defaul shot the plus icon appears shifted to the right because I gave it an inset but the highlighted background image also presumably using that inset is getting clipped on its right side . See image at https skitch.com starbaseweb rj2e5 ios simulator For..
Is there a way to force horizontal / landscape layout on mobile devices? http://stackoverflow.com/questions/4806938/is-there-a-way-to-force-horizontal-landscape-layout-on-mobile-devices to force it into a landscape layout. This won't work quite correctly the browser UI will still be in portrait mode but presumably the user will figure out that they're supposed to rotate the phone back into landscape mode in order to view the content...
didReceiveRemoteNotification when in background http://stackoverflow.com/questions/5056689/didreceiveremotenotification-when-in-background the push notification that is encoded in the notification itself optional alert badge number sound . But since you presumably are in control of both the app and the payload of the push notification you can specify in the payload whether or not there..
http://stackoverflow.com/questions/6851660/version-vs-build-in-xcode-4 4C139 . Marketing version 4.2 is Build major version 4 Build minor version C and Build number 139. The next release presumably 4.3 will likely be Build release 4D and the Build number will start over at 0 and increment from there. The iPhone Simulator..
Programmatically build / navigate a Navigation Controller http://stackoverflow.com/questions/7241923/programmatically-build-navigate-a-navigation-controller
How to know whether app is terminated by user or iOS (after 10min background) http://stackoverflow.com/questions/7343404/how-to-know-whether-app-is-terminated-by-user-or-ios-after-10min-background
How could I create a shortcut on desktop in iOS through an app http://stackoverflow.com/questions/7577889/how-could-i-create-a-shortcut-on-desktop-in-ios-through-an-app Phone . i.e 834 895 734 tel 834895734 or sms 834895734 The app then opens that page in MobileSafari and that page presumably has instructions on how to Add to Homescreen . The user will then have to navigate to and tap the Add to Homescreen button...
To ARC or not to ARC? What are the pros and cons? http://stackoverflow.com/questions/8760431/to-arc-or-not-to-arc-what-are-the-pros-and-cons the moment was written pre iOS 5.0. I was just wondering does the convenience of not retaining releasing manually and presumably more reliable code that comes as a result outweigh any 'cost' of using ARC What are your experiences of ARC and would you..
Do all class methods return an autoreleased object? http://stackoverflow.com/questions/1378206/do-all-class-methods-return-an-autoreleased-object of objects you own using release or autorelease. Any other time you receive an object you must not release it. Presumably they are returning an autoreleased object or a reference to a singleton or something like that. Either way you need not..
password encryption in iphone apps http://stackoverflow.com/questions/189925/password-encryption-in-iphone-apps about the encryption. Apple ships it is their responsibility to ensure export compliance of the system frameworks. Presumably they use weaker or no encryption if they sell the device anywhere that it is prohibited but if you use the available APIs..
Large scrolling background in OpenGL ES http://stackoverflow.com/questions/217822/large-scrolling-background-in-opengl-es question That's the fast way of doing it. Things you can do to improve performance Try different texture formats. Presumably the SDK docs have details on the preferred format and presumably smaller is better. Cull out entirely offscreen tiles yourself..
Determine iPhone user's country http://stackoverflow.com/questions/3043335/determine-iphone-users-country iPhone user's country I need to determine at startup what country a user is in for an iPhone application. Presumably I will have to turn on location services and do some sort of reverse geocoding. I don't really want to use a third party..
Install xCode 3.2.3 w/ iPhone SDK 4, get “Base SDK missing”, can't see other SDKs http://stackoverflow.com/questions/3161385/install-xcode-3-2-3-w-iphone-sdk-4-get-base-sdk-missing-cant-see-other-sdk must be built with iPhone SDK 4. Please note the App Store will no longer support applications that target iOS 2.x. Presumably I'm guessing here iPad only and universal apps should use the 3.2 SDK. That is why 4.0 3.2 are your only choices for SDKs...
How to stop the UITextField from responding to the shake gesture? http://stackoverflow.com/questions/3663160/how-to-stop-the-uitextfield-from-responding-to-the-shake-gesture I looked through the UITextField UITextFieldDelegate and UITextInputTraits docs and found nothing relating to shaking. Presumably I could subclass UITextField to ignore the shake event but I'm not exactly confident in my ability to not screw other things..
http://stackoverflow.com/questions/4177398/save-and-load-data-coredata helpful. I understand some many of these errors only fixing them in the correct manner is my issue. Hope you can help. Presumably I put your first code chunk in the did finish editing method save when leaving text box and then the second chunk in the.. mo NSEntityDescription insertNewObjectForEntityForName @ DateText inManagedObjectContext theManagedObjectContext Presumably below 'someText' is the text I want save And the 'aDateObject' is the date in my UIDatePicker newDatedText setValue someText..
iPhone App can autolaunch after device boot? http://stackoverflow.com/questions/5109305/iphone-app-can-autolaunch-after-device-boot share improve this question It's built into multi tasking. Backgrounded apps are still in background after a reboot. Presumably the app does some work to re instantiate itself and get its state going again the first time Core Location hits it in the..
Record HTTP Live Streaming Video To File While Watching? http://stackoverflow.com/questions/6671705/record-http-live-streaming-video-to-file-while-watching sort of way. 3 Locate the HTTP Live Streaming video segments where they are stored by MPMoviePlayerController. Presumably they need to be stored somewhere on the iPad for playback. Is there a way of accessing these files 4 Manually download the..
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