2014/10/15 下午 10:10:43

iphone Programming Glossary: jump

How to make a UITextField move up when keyboard is present

http://stackoverflow.com/questions/1126726/how-to-make-a-uitextfield-move-up-when-keyboard-is-present

of the contents of the UIScrollView to see the other text fields once the keyboard is brought up Automatically jump by scrolling up or shortening I know that I need a UIScrollView . I've tried changing the class of my UIView to a UIScrollView..

Weird Switch error in Obj-C

http://stackoverflow.com/questions/1180550/weird-switch-error-in-obj-c

declares a C99 variable length array such as case 1 void ptrs count This is because in C99 it is an error to jump past the declaration of a C99 VLA that is in the same lexical scope where the jump took place. In these cases you need to.. is because in C99 it is an error to jump past the declaration of a C99 VLA that is in the same lexical scope where the jump took place. In these cases you need to use case 1 void ptrs count . In this case the scope of the ptrs VLA ends at the closing..

NSManagedObjectContext performBlockAndWait: doesn't execute on background thread?

http://stackoverflow.com/questions/11831946/nsmanagedobjectcontext-performblockandwait-doesnt-execute-on-background-thread

What's the difference between using CGFloat and float?

http://stackoverflow.com/questions/1264924/whats-the-difference-between-using-cgfloat-and-float

a typedef for either float or double . You can see for yourself by Command double clicking on CGFloat in Xcode it will jump to the CGBase.h header where the typedef is defined. The same approach is used for NSInteger and NSUInteger as well. These..

Dynamically setting layout on UICollectionView causes inexplicable contentOffset change

http://stackoverflow.com/questions/13780138/dynamically-setting-layout-on-uicollectionview-causes-inexplicable-contentoffset

with self.collectionView setCollectionViewLayout myLayout animated YES I was having your exact problem with the cells jumping before animation and realized it was the contentOffset . I tried everything with the contentOffset but it still jumped.. before animation and realized it was the contentOffset . I tried everything with the contentOffset but it still jumped during animation. tyler's solution above worked but it was still messing with the animation. Then I noticed that it happens.. there are only a few albums the collection view content size is less than the views content size. That's causing the jump when I toggle between the collection layouts. So I set a property on my layouts called minHeight and set it to the collection..

Loop an UIScrollView [duplicate]

http://stackoverflow.com/questions/1383849/loop-an-uiscrollview

release super dealloc @end I then use scrollViewDidEndDecelerating to check where in the scroll the user is and then jump them to the 2nd image or last but 1 image so they can scroll continuously... Sorry if I haven't explained it well short..

How to add a contact to the iPhone's Address Book from a Web Page?

http://stackoverflow.com/questions/1773876/how-to-add-a-contact-to-the-iphones-address-book-from-a-web-page

Create New Contact and you're nearly there... Save the contact and curse under your breath at the hoops Apple made you jump through Now there are a couple of points I'd like to mention here based on my experiences using this technique on HTML5..

iPhone: how to get safari to recognize a vcard?

http://stackoverflow.com/questions/1892373/iphone-how-to-get-safari-to-recognize-a-vcard

Is there a way to programmatically scroll to a PDF page within a UIWebView?

http://stackoverflow.com/questions/1927841/is-there-a-way-to-programmatically-scroll-to-a-pdf-page-within-a-uiwebview

x y function. There is one catch though that you cannot just device the outerHeight by the number of pages and jump to what you get. Instead you will have to multiply by the innerHeight webView.bounds.size.height ratio. share improve this..

How to Start UITableView on the Last Cell?

http://stackoverflow.com/questions/2156614/how-to-start-uitableview-on-the-last-cell

If you put the scrollToRowAtIndexPath in viewDidAppear you would not need the reloadData but you will see the table jump a little which you say you don't want. Edit @Theory try changing your code as follows... tableView reloadData int lastRowNumber..

Which OAuth library do you find works best for Objective-C/iPhone?

http://stackoverflow.com/questions/2838618/which-oauth-library-do-you-find-works-best-for-objective-c-iphone

code and now that there is a deadline in less than 7 weeks see countdown link it is even more important to make the jump to OAuth. I have been doing Basic Authentication which is extremely easy. Unfortunately OAuth does not appear to be something..

How can I programmatically force-stop scrolling in a UIScrollView?

http://stackoverflow.com/questions/3410777/how-can-i-programmatically-force-stop-scrolling-in-a-uiscrollview

bounds but inside the contentSize of the view. This seems to halt the view as expected... but also causes it to jump to some other location. I could probably do a little playing around at the margins to get this to work reasonably OK but..

iPhone/iPad - Loop Background Music?

http://stackoverflow.com/questions/3631353/iphone-ipad-loop-background-music

iPhone - Backgrounding to poll for events

http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events

all data to restore your views your app will be terminated some time later. To make it appear still running you must jump back into your last state after wakeup. I don't know if this is the approach of the apps you mentioned before but it works..

PDF Viewer iPad App [closed]

http://stackoverflow.com/questions/4949809/pdf-viewer-ipad-app

I'm looking to develop a custom PDF viewer for an iPad which has features like bookmarks search deep linking zoom jump to specific page Does anyone know a code solution similar to this I'm currently looking at Ghostscript but am having a problem..

What are the Dangers of Method Swizzling in Objective C?

http://stackoverflow.com/questions/5339276/what-are-the-dangers-of-method-swizzling-in-objective-c

the NSView implementation . When you call setFrame on a button it will therefore call your swizzled method and then jump straight to the setFrame method originally defined on NSView . The NSControl and NSView swizzled implementations will not..

Can you use cancel/isCancelled with GCD/dispatch_async?

http://stackoverflow.com/questions/5449469/can-you-use-cancel-iscancelled-with-gcd-dispatch-async

that needs to be released. Some people dislike using goto in an almost religious way but I've found that a forward jump to a cleanup label like this is often a cleaner solution than the alternatives. If you don't like it wrapping everything..

How can I locally detect iPhone clock advancement by a user between app runs?

http://stackoverflow.com/questions/7122216/how-can-i-locally-detect-iphone-clock-advancement-by-a-user-between-app-runs

by a user between app runs A common exploit in casual games is to artificially advance the system clock to jump ahead in gameplay. How can such user clock advancement be detected by an app on an iOS device Must not involve network communication..