2014/10/15 下午 10:11:24

iphone Programming Glossary: misunderstood

Retrieving a pixel alpha value for a UIImage

http://stackoverflow.com/questions/1042830/retrieving-a-pixel-alpha-value-for-a-uiimage

channel. Do I need to translate the co ordinates between UIKit and Core Graphics i.e is the y axis inverted Or have I misunderstood premultiplied alpha values Update @Nikolai Ruhe's suggestion was key to this. I did not in fact need to translate between..

memory not releasing with ARC and storyboard in iOS 5.1

http://stackoverflow.com/questions/10544444/memory-not-releasing-with-arc-and-storyboard-in-ios-5-1

Hardware accelerated h.264 decoding to texture, overlay or similar in iOS

http://stackoverflow.com/questions/10646657/hardware-accelerated-h-264-decoding-to-texture-overlay-or-similar-in-ios

area whether or not what I want to do is possible. No more. I consider this a valid high level question which can be misunderstood as an I didn't do my homework plz give me teh codez question. If my judgement in here was mistaken feel free to delete or..

Question about factory method object lifetimes in Objective-C/Cocoa (to retain or not…)

http://stackoverflow.com/questions/2017793/question-about-factory-method-object-lifetimes-in-objective-c-cocoa-to-retain-o

is all just total n00b ness or a bizarre bug elsewhere in the code but if someone could explain how exactly I may have misunderstood I'd be much obliged. Thanks Update Thanks for the answers. I think I've got it now iphone objective c cocoa touch share..

Hidden UINavigationController inside UITabBarController

http://stackoverflow.com/questions/284321/hidden-uinavigationcontroller-inside-uitabbarcontroller

the View Controller shows no obvious way of doing this. Anyone have any ideas Thanks wisequark I think you completely misunderstood and you have almost rewritten the architecture of my application.. however I have a seperate navigation controller for each..

iPhone (iOS): copying files from main bundle to documents folder error

http://stackoverflow.com/questions/3246109/iphone-ios-copying-files-from-main-bundle-to-documents-folder-error

sourcePath toPath documentsDirectory stringByAppendingPathComponent @ Populator error error ... Edit Sorry misunderstood your question. Don't know if there's a better option then iterating through folder contents and copy each item separately...

Passing array between view controllers?

http://stackoverflow.com/questions/4478511/passing-array-between-view-controllers

is also some part of the model implemented. This is a bad idea but a very common one to make in the beginning. Maybe I misunderstood your design but here is how I would implement it The Model I would implement a proper model object which could be in your..

Programmatically creating Views in IOS (how does it work)?

http://stackoverflow.com/questions/4820094/programmatically-creating-views-in-ios-how-does-it-work

view are they just saying manually create the class but when you need to display it use IB I can't help feeling like I misunderstood something edit let me be more clear. My custom view has been initialized with a frame of 0 0 200 150 and drawRect is overriden..

How to add NSDebug.h and use NSZombie in iPhone SDK

http://stackoverflow.com/questions/535060/how-to-add-nsdebug-h-and-use-nszombie-in-iphone-sdk

#endif I am not sure if that is right either. After this I still can't get the NSZombie to work unless I have misunderstood what it is supposed to do I am expecting to see a log of NSZombie sent a release... or something. But I don't see anything..

Quartz 2D drawRect method (iPhone)

http://stackoverflow.com/questions/716351/quartz-2d-drawrect-method-iphone

another X. Do I need to remember all these touchup coordinates and then draw them all in drawRect EDIT Unless I've misunderstood joconor and Hector Ramos's answers below are contradicting each other. And that's a good demonstration of my confusion concerning..

cellForRowAtIndexPath memory management

http://stackoverflow.com/questions/8859735/cellforrowatindexpath-memory-management

putting your label release at the end put label release after every cell addSubview label Your next problem is you've misunderstood how the table cell recycling works. UITableCell objects are reused over and over again within a table that why you do this..