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2014/10/15 ¤U¤È 10:09:57
iphone Programming Glossary: handyWhat is the basic difference between NSTimer, NSTask, NSThread and NSRunloop? http://stackoverflow.com/questions/1124207/what-is-the-basic-difference-between-nstimer-nstask-nsthread-and-nsrunloop
Extracting a public key from key pair in key chain http://stackoverflow.com/questions/11467215/extracting-a-public-key-from-key-pair-in-key-chain developer.apple.com library ios #samplecode AdvancedURLConnections You might also find the dumpCredentials method handy during debugging. o The problem with SecItemDelete means that SecKeyGeneratePair is generating a new set of keys each time..
Steps to migrate Core Data databases for shipped iPhone apps http://stackoverflow.com/questions/1262352/steps-to-migrate-core-data-databases-for-shipped-iphone-apps
How do I set a background image for a grouped table view? http://stackoverflow.com/questions/1370849/how-do-i-set-a-background-image-for-a-grouped-table-view of the UITableView to be an image instead but then the background scrolls with the table. I don't have the code handy at the moment but I got the tip a while back on the Apple developer forums . Note that this can cause some performance issues...
Can I show/hide a certain cell in an UITableView depending on the state of another cell? http://stackoverflow.com/questions/2071962/can-i-show-hide-a-certain-cell-in-an-uitableview-depending-on-the-state-of-anoth me in the right direction. iphone objective c cocoa touch iphone sdk 3.0 share improve this question Here's a handy post in which the author provides some source code for performing animations on the currently selected cell http iphonedevelopment.blogspot.com..
iPhone SDK - How to disable the picture preview in UIImagePickerController? http://stackoverflow.com/questions/2300616/iphone-sdk-how-to-disable-the-picture-preview-in-uiimagepickercontroller toolBar OverlayView overlayView I created the controls of the toolbar a camera button and the cancel button toolbar handy if you want to be able to exit from the image picker... toolBar UIToolbar alloc initWithFrame CGRectMake 0 480 55 320 55..
Suppressing deprecated warnings in Xcode http://stackoverflow.com/questions/2622017/suppressing-deprecated-warnings-in-xcode deprecated warnings in Xcode With all the SDKs floating around it's handy to be able to build for multiple SDKs and platforms. However bouncing from 3.2 to 3.0 and even occasionally 2.x I frequently..
Does UIGestureRecognizer work on a UIWebView? http://stackoverflow.com/questions/2909807/does-uigesturerecognizer-work-on-a-uiwebview you can use event.preventDefault to stop the default behavior. I also found the webkit user select none css property handy for some things. var touch function touch_start event TouchEvent event.preventDefault touch touch.startX event.touches.item..
How to show button ?˜Done??on number pad on iPhone OS 4? [duplicate] http://stackoverflow.com/questions/3014964/how-to-show-button-done-on-number-pad-on-iphone-os-4 pad on iPhone 13 answers I'd like to add a Done button to the iPhone number pad keyboard. There's even a handy space at the bottom left for just such a button. Previously I was using a similar trick to those described in Question 584538..
differences between uiwebview and mobile safari http://stackoverflow.com/questions/3496505/differences-between-uiwebview-and-mobile-safari looked far and wide for info and have found no definitive list. Please add your observations. I'm sure it will come in handy to all. iphone mobile safari uiwebview share improve this question It doesn't have the Nitro Javascript engine. This..
What's the best approach for parsing XML/'screen scraping' in iOS? UIWebview or NSXMLParser? http://stackoverflow.com/questions/3541615/whats-the-best-approach-for-parsing-xml-screen-scraping-in-ios-uiwebview-or UIWebView too. It looks like UIWebView may be the way to go. stringByEvaluatingJavaScriptFromString seems like a very handy way to extract the data and would allow the javascript to be stored in a separate file that would be easy to edit if the..
How should I architect my iPhone app to talk to my website? http://stackoverflow.com/questions/3943597/how-should-i-architect-my-iphone-app-to-talk-to-my-website are downloaded to check their validity re download if parsing fails. That's when dedicated class for parsing comes handy. If your dataset is not huge if you do not need to persist downloaded data on iPhone forever you probably don't need to..
Alternatives For iOS Development Under Windows [duplicate] http://stackoverflow.com/questions/4533847/alternatives-for-ios-development-under-windows game development iphone ipad ios windows 7 port share improve this question You might find following solutions handy. I have tried to comment those I am more familiar with PhoneGap Sencha Touch Nice JS framework. Check out their demos. Rhomobile..
How do I detect a touch on a UIBezierPath and move a ball along that? http://stackoverflow.com/questions/4854035/how-do-i-detect-a-touch-on-a-uibezierpath-and-move-a-ball-along-that a note. For the convenience of anyone reading in the future here is the summary from the linked question of the two handy routines... Finally here in the simplest possible fashion are the two routines to calculate equidistant points in fact approximately..
iphone - core motion (relative rotation) http://stackoverflow.com/questions/5053793/iphone-core-motion-relative-rotation is reported relative to that reference frame not relative to the previous frame . The CMAttitude class provides some handy built in functionality to convert a CMAttitude to a form that is actually useful for something like Euler Angles a rotation..
Point in Tilt Direction - iPhone http://stackoverflow.com/questions/5128861/point-in-tilt-direction-iphone inline float radianstodegrees double degrees return degrees 180 M_PI . where are the axes ... PS here's the incredibly handy diagram you may want to bookmark http developer.apple.com library ios #documentation uikit reference UIAcceleration_Class..
iPhone - understanding iPhone rotation http://stackoverflow.com/questions/5170010/iphone-understanding-iphone-rotation is build the inverse of q1 q1^ 1 and then you get dQ q1^ 1 q2 If deviceMotionInterval is high enough you always have handy small Euler angles without any 90° singularities or other beasty stuff. The possible drawback of this solution might be..
http://stackoverflow.com/questions/5270241/complete-list-of-lifecycle-functions-of-viewcontroller-from-starting-to-end-of-t
Debugging exception thrown in Objective C and XCode http://stackoverflow.com/questions/711650/debugging-exception-thrown-in-objective-c-and-xcode GDB breaking at a convenient spot. You should also look into NSZombie . These are environment variables that are very handy for early breaking on bad memory allocation or access situations. For instance wih NSZombieEnabled nothing will truly be..
What's the difference between GLKView and EAGLView? http://stackoverflow.com/questions/8412302/whats-the-difference-between-glkview-and-eaglview
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