2014/10/15 下午 10:12:56

iphone Programming Glossary: processed

http://stackoverflow.com/questions/1298867/convert-image-to-grayscale

rawData length height width 4 UIImage newImage UIImage imageWithData newPixelData free rawData DebugLog @ image processed return newImage So when I want to convert an image I just call processImage imageToDisplay.image self processImage image..

How can I skip compressing one PNG?

http://stackoverflow.com/questions/2051947/how-can-i-skip-compressing-one-png

here. The Xcode build process optimizes my PNGs when building. This isn't usually a problem but iTunesArtwork being processed in this way causes corrupts it so that iTunes not to be able to show it. How can I prevent this iphone xcode compression..

Realtime formatting with NSNumberFormatter in a UITextfield

http://stackoverflow.com/questions/2412491/realtime-formatting-with-nsnumberformatter-in-a-uitextfield

textField setText NSString stringWithFormat @ @ newAmount return NO Returning yes allows the entered chars to be processed return YES NSString formatCurrencyValue double value NSNumberFormatter numberFormatter NSNumberFormatter alloc init autorelease..

Symbol not found: _OBJC_CLASS_$_UIPopoverController

http://stackoverflow.com/questions/3001374/symbol-not-found-objc-class-uipopovercontroller

3.1 uipopovercontroller share improve this question Even if they're not loaded in runtime those files are still processed in linking. The symbol _OBJC_CLASS_ _UIPopoverController is therefore added into your app as one of those requiring dynamic..

How to properly release an AVCaptureSession

http://stackoverflow.com/questions/3741121/how-to-properly-release-an-avcapturesession

EXEC_BAD_ACCESS signal raised in second thread that was created by the dispatch queue and where the video samples are processed . The crash is mainly due to my own class instance which serves as the sample buffer delegate and is freed after I've stop.. queue quits we can be sure that there won't be any more action in the second thread where the sample buffers are processed. static void capture_cleanup void p AugmReality ar AugmReality p cast to original context instance ar release releases capture..

Do you need to create an NSAutoreleasePool within a block in GCD?

http://stackoverflow.com/questions/4141123/do-you-need-to-create-an-nsautoreleasepool-within-a-block-in-gcd

queue automatically. However there are no guarantees as to when the pool will be drained it may be after one block is processed it may be after hundreds but probably won't be . So if you are only allocating a few objects don't worry about it. However..

Getting displacement from accelerometer data with Core Motion

http://stackoverflow.com/questions/4449565/getting-displacement-from-accelerometer-data-with-core-motion

will become even worse after one second if you configure accelerometer with let's say 50 Hz i.e. 50 ticks are processed and the tiny neglectable error will outrun the true value. I would strongly recommend to not rely on trapezoidal rule but..

How to create subscript characters that's not in Unicode in iOS

http://stackoverflow.com/questions/5080175/how-to-create-subscript-characters-thats-not-in-unicode-in-ios

rendering not on string creation. And this is not a limitation of iOS this is the limitation of the way strings are processed in modern computers. What do you do to that NSString Do you display it on a UILabel Do you send it over the network Do you..

UIWebView - Enabling Action Sheets on <img> tags

http://stackoverflow.com/questions/5163831/uiwebview-enabling-action-sheets-on-img-tags

NSSet touches event touchesForWindow self touches retain super sendEvent event Call super to make sure the event is processed as usual if touches count 1 We're only interested in one finger events UITouch touch touches anyObject switch touch phase..

UIScrollView pauses NSTimer until scrolling finishes

http://stackoverflow.com/questions/605027/uiscrollview-pauses-nstimer-until-scrolling-finishes

You have to run another thread and another run loop if you want timers to fire while scrolling since timers are processed as part of the event loop if you're busy processing scrolling your view you never get around to the timers. Though the perf..

iOS CVImageBuffer distorted from AVCaptureSessionDataOutput with AVCaptureSessionPresetPhoto

http://stackoverflow.com/questions/6540710/ios-cvimagebuffer-distorted-from-avcapturesessiondataoutput-with-avcapturesessio

high level I created an app that lets a user point his or her iPhone camera around and see video frames that have been processed with visual effects. Additionally the user can tap a button to take a freeze frame of the current preview as a high resolution.. cameraFrame 0 This all works and leads to the correct results. I can see a video preview of 640x480 processed through OpenGL. It looks like this However if I capture a still image from this session its resolution will also be 640x480...

iPhone Watermark on recorded Video.

http://stackoverflow.com/questions/7205820/iphone-watermark-on-recorded-video

AVCaptureVideoDataOutput then overlaying the captured frame with the watermark image and finally writing captured and processed frames to a file user AVAssetWriter . Search around stack overflow there are a ton of fantastic examples detailing how to.. CGRectMake x y height width to draw the frame to a context draw a PNG of the watermark over it and then add the processed images to your output video using AVAssetWriter . I would suggest adding them in real time so you're not filling up memory.. with tons of UIImages. How do I export UIImage array as a movie This post shows how to add the UIImages you have processed to a video for a given duration. This should get you well on your way to watermarking your videos. Remember to practice..

How to detect “IAP crackers”?

http://stackoverflow.com/questions/7465713/how-to-detect-iap-crackers

piece of data that it'll get from your web server. Modify your IAP processing code so that when it sees a transaction processed it sends the details of that transaction to your web server and fetches back the unique key needed in step 1. Write a simple..

iOS UIWebView Javascript - insert data -receive callbacks?

http://stackoverflow.com/questions/7681918/ios-uiwebview-javascript-insert-data-receive-callbacks

javascript file that does a whole lot of stuff. In the app I have an NSString with some crucial data that needs to be processed in the javascript file. How do I get my string value into a certain place in my html so my javascript can read it Also the..