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2014/10/15 ¤U¤È 10:16:01
iphone Programming Glossary: wrappediPhone - copying a file from resources to Documents gives an error http://stackoverflow.com/questions/1132005/iphone-copying-a-file-from-resources-to-documents-gives-an-error code instead of passing a nil for attributes I set up an NSDictionary with a NSFileModificationDate attribute. I also wrapped the createFileAtPath contents attributes in an error handing if statement. In other words if NSFileManager defaultManager..
NSManagedObjectContext performBlockAndWait: doesn't execute on background thread? http://stackoverflow.com/questions/11831946/nsmanagedobjectcontext-performblockandwait-doesnt-execute-on-background-thread asynchronously. Some unknown thread will pull blocks off of the queue and execute them. In addition those blocks are wrapped within their own autorelease pool and also they will represent a complete Core Data user event processPendingChanges . performBlockAndWait..
iphone MPMoviePlayerViewController CGContext Errors http://stackoverflow.com/questions/13203336/iphone-mpmovieplayerviewcontroller-cgcontext-errors was these error messages which I didn't want showing up in the console. Taking a hint from Norman's solution I simply wrapped the call in an artificial drawing context like this UIGraphicsBeginImageContext CGSizeMake 1 1 MPMoviePlayerViewController..
NSURLConnection blocking wrapper implemented with semaphores [closed] http://stackoverflow.com/questions/13733124/nsurlconnection-blocking-wrapper-implemented-with-semaphores to block the calling and the background threads in an alternating way. The dispatch_semaphores code is nicely wrapped inside a custom ProducerConsumerLock class. BlockingConnection.m #import BlockingConnection.h #import ProducerConsumerLock.h..
How to create project templates in Xcode 4 http://stackoverflow.com/questions/15491826/how-to-create-project-templates-in-xcode-4 so search for a key called Nodes that has an array of values. Add the two following lines Note that these values are wrapped in string enclosures they do not get printed in SO as they are considered formatting instructions _VARIABLE_classPrefix..
What is the right choice between NSDecimal, NSDecimalNumber, CFNumber? http://stackoverflow.com/questions/1704504/what-is-the-right-choice-between-nsdecimal-nsdecimalnumber-cfnumber operators with objects. Should I get float values from NSDecimalNumber then do the computations and returns the result wrapped in an NSDecimalNumber How would you deal with this problem I am looking for a simple and beautiful solution Just another..
http://stackoverflow.com/questions/2330939/sizewithfont-doesnt-give-correct-height-for-uitextview-if-there-is-a-long-strin doesn't give correct height for UITextView if there is a long string in the text being wrapped Is there a way to get the correct size of an NSString using CGSize sizeWithFont UIFont font forWidth CGFloat width lineBreakMode.. iphone objective c nsstring uitextfield share improve this question UITextView is not exactly like a UILabel wrapped in a UIScrollView . It has line spacing different from the font size and margins that sizeWithFont constrainedToSize linkBreakMode..
Change the delegate of MGTwitterEngine http://stackoverflow.com/questions/2956852/change-the-delegate-of-mgtwitterengine You would just need to pass an object your view controller or a block as an extra parameter to each of your wrapped methods. You can cache the twitter id string and this object block in a mutable dictionary when your wrapper sends the response..
http://stackoverflow.com/questions/4100421/uilabel-visible-part-of-text visible part of text Is there a way to get the visible part of text in word wrapped UILabel I mean exactly the last visible character I'd like to make two labels rounding the image and would like to continue..
Drawing waveform with AVAssetReader http://stackoverflow.com/questions/5032775/drawing-waveform-with-avassetreader need to cache it to your apps's bundle cache folder. Since I was doing that i decided to cache the image data also and wrapped the whole thing into a UIImage category. you need to include this open source offering to extract the audio and some code..
NSURLConnection and grand central dispatch http://stackoverflow.com/questions/5037545/nsurlconnection-and-grand-central-dispatch error void connectionDidFinishLoading NSURLConnection connection Should I just call the synchronous versions but wrapped in gcd blocks And if I want to cancel a call use 'dispatch_suspend' dispatch_async queue ^ NSString result self mySynchronousHttp..
How do you explicitly animate a CALayer's backgroundColor? http://stackoverflow.com/questions/518192/how-do-you-explicitly-animate-a-calayers-backgroundcolor @ selectionAnimation seems to do nothing to the backgroundColor property I assume because handing it off as a pointer wrapped in an NSValue is not the way to pass it along. backgroundColor is an animatable property of CALayer so my question is how..
UIView backgroundColor disappears when UITableViewCell is selected http://stackoverflow.com/questions/5222736/uiview-backgroundcolor-disappears-when-uitableviewcell-is-selected selected animated animated . This will give you the most technically correct implementation because a the code is wrapped up inside the UITableViewCell subclass and b because it is only called when needed well twice when needed but maybe there..
what is the difference between Delegate and Notification? http://stackoverflow.com/questions/5325226/what-is-the-difference-between-delegate-and-notification method as a parameter. Note that you can not send primitives such as bools floats doubles ints etc. unless they are wrapped in their respective Object wrappers. classB void DelegateMethod and then call this in classA classB delegate void viewdidload..
Can I use CGAffineTransformMakeRotation to rotate a view more than 360 degrees? http://stackoverflow.com/questions/542739/can-i-use-cgaffinetransformmakerotation-to-rotate-a-view-more-than-360-degrees writing an iPhone app and I've got an image which I'ld like to have swirl outwards. Currently my code looks like this wrapped in a beginAnimations commitAnimations block scale CGAffineTransformScale CGAffineTransformIdentity 5.0f 5.0f swirl CGAffineTransformRotate..
Some beginner Objective-C/iPhone questions http://stackoverflow.com/questions/710568/some-beginner-objective-c-iphone-questions 1. the self nil check in initializer code. Why do it To prevent accidental access to some run only once code that's wrapped up in there Where from could this accidental access come from Doing such checks suggest that I don't have control over what's..
How to detect that animation has ended on UITableView beginUpdates/endUpdates? http://stackoverflow.com/questions/7623771/how-to-detect-that-animation-has-ended-on-uitableview-beginupdates-endupdates beginUpdates endUpdates I am inserting deleting table cell using insertRowsAtIndexPaths deleteRowsAtIndexPaths wrapped in beginUpdates endUpdates . I am also using beginUpdates endUpdates when adjusting rowHeight. All these operations are..
Remove form assistant from keyboard in iPhone standalone web app http://stackoverflow.com/questions/7904892/remove-form-assistant-from-keyboard-in-iphone-standalone-web-app do it in a web app. This is from the Facebook app and the page is very similar to mine I've tried using an input not wrapped in a form and also using a contenteditable div but the results were the same. There are several custom webkit styles to..
Storyboard static cells: dequeueReusableCellWithIdentifier returns nil http://stackoverflow.com/questions/9993669/storyboard-static-cells-dequeuereusablecellwithidentifier-returns-nil was the problem in this stackoverflow question . My view controller is a subclass of UITableViewController of course wrapped into an ad hoc navigation controller in storyboard. Suspecting that my view controller somehow does not know about the cell..
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