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2014/10/15 ¤U¤È 10:08:56
iphone Programming Glossary: fedhow to add echo effect on audio file using objective-c http://stackoverflow.com/questions/11793310/how-to-add-echo-effect-on-audio-file-using-objective-c ret x g delayLine.readNext x delayLine.writeNext ret return ret Notice how the output of the whole thing is getting fed back into the delay line this time rather than the input. In this case it's very important that g 1. You may run into issues..
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 webViewDidFinishLoad gets called. This information is used to calculate an approximate per page offset that gets fed to the web view via JavaScript. PDFViewerViewController.h #import UIKit UIKit.h #import WebViewerViewController.h @interface..
http://stackoverflow.com/questions/1968320/how-to-learn-how-to-program If you get such results try finding the reason behind them. 6. Be a self learner Leave behind the habit of being spoon fed. Start learning yourself. There is wide range of content available on the Internet. There are thousands of books in the..
How can I use NSError in my iPhone App? http://stackoverflow.com/questions/4654653/how-can-i-use-nserror-in-my-iphone-app code 200 userInfo details we couldn't feed the world's children...return nil..sniffle...sniffle return nil wohoo We fed the world's children. The world is now in lots of debt. But who cares return YES We can then use the method like this. Don't.. error error if yayOrNay inspect error NSLog @ @ error localizedDescription otherwise the world has been fed. Wow your code must rock. We were able to access the error's localizedDescription because we set a value for NSLocalizedDescriptionKey..
Are the Core Image filters in iOS 5.0 fast enough for realtime video processing? http://stackoverflow.com/questions/6625888/are-the-core-image-filters-in-ios-5-0-fast-enough-for-realtime-video-processing area recently and found that the iPhone 4 could do 60 FPS processing using a simple shader on realtime video being fed in at a 480 x 320. You could download my sample application there and attempt to customize the shader and or video input..
Objective-C: Asynchronously populate UITableView - how to do this? http://stackoverflow.com/questions/7491517/objective-c-asynchronously-populate-uitableview-how-to-do-this NSURLConnection is not hard to use and will result in better more performant code. Your JSON response should be fed into a data structure not the UI. I recommend Core Data. The data structure should feed your UITableView . Again I recommend..
Rest web service calling- XML POST request - iPhone http://stackoverflow.com/questions/8305718/rest-web-service-calling-xml-post-request-iphone this I made a mistake when Im creating XML request. Please help me to solve this can you give me a code for this I was fed up with this. Thanks alot. iphone web services rest ios5 xcode4.2 share improve this question In this line postBody..
Faster alternative to glReadPixels in iPhone OpenGL ES 2.0 http://stackoverflow.com/questions/9550297/faster-alternative-to-glreadpixels-in-iphone-opengl-es-2-0 optimized to use when encoding video so there's no need to do any color swizzling here. The raw BGRA pixels are just fed into the encoder to make the movie. Aside from the use of this in an AVAssetWriter I have some code in this answer that..
Draw a straight line using OpenGL ES in iPhone? http://stackoverflow.com/questions/9736887/draw-a-straight-line-using-opengl-es-in-iphone buffer line a pointer to the data being copied GL_STATIC_DRAW the usage pattern of the data Enable vertex data to be fed down the graphics pipeline to be drawn glEnableVertexAttribArray GLKVertexAttribPosition Specify how the GPU looks up the..
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