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2014/10/15 ¤U¤È 10:08:53
iphone Programming Glossary: fasterComparison of JSON Parser for Objective-C (JSON Framework, YAJL, TouchJSON, etc) http://stackoverflow.com/questions/2256625/comparison-of-json-parser-for-objective-c-json-framework-yajl-touchjson-etc question I had the same results as you for JSON Framework and TouchJSON. TouchJSON claims to be faster but my test with parsing one big 10K array objects JSON string was different JSON Framework was faster...
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints placeholder objects alternitively another design approach is this one Note that images will render faster than a CGPDFPageRef Use NSOperations or GCD Blocks to prepare pages ahead of time. call CGContextSetInterpolationQuality..
http://stackoverflow.com/questions/4847163/round-two-corners-in-uiview you just need few lines of code. I put stuff in my viewController viewDidLoad method because it's faster but you can use it also in your custom UIView with the layoutSubviews method in example. void viewDidLoad.. can only see the upper rounded corner. I put the code just in the viewDidLoad method because it's faster but you can use it also in your custom UIView with the layoutSubviews method in example. void viewDidLoad..
canonical way to randomize an NSArray in Objective C http://stackoverflow.com/questions/791232/canonical-way-to-randomize-an-nsarray-in-objective-c NSUInteger n NSUInteger m 1 Compute smallest power of two greater than n. There's probably a faster solution than this loop but bit twiddling isn't my specialty. do m 1 while m n NSUInteger ret do ret..
To ARC or not to ARC? What are the pros and cons? http://stackoverflow.com/questions/8760431/to-arc-or-not-to-arc-what-are-the-pros-and-cons ref counting share improve this question There is no downside. Use it. Do it today. It is faster than your old code. It is safer than your old code. It is easier than your old code. It is not garbage..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud
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 alternative to glReadPixels in iPhone OpenGL ES 2.0 Is there any faster way to access the frame buffer than using glReadPixels I would need read only access to a small rectangular.. iphone ios opengl es opengl es 2.0 share improve this question As of iOS 5.0 there is now a faster way to grab data from OpenGL ES. It isn't readily apparent but it turns out that the texture cache support.. CVPixelBufferRef so there will be no need to pull them down using glReadPixels . This is much much faster than using glReadPixels in my benchmarks. I found that on my iPhone 4 glReadPixels was the bottleneck..
Comparison of JSON Parser for Objective-C (JSON Framework, YAJL, TouchJSON, etc) http://stackoverflow.com/questions/2256625/comparison-of-json-parser-for-objective-c-json-framework-yajl-touchjson-etc
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints rendering on TiledLayers init frequently used arrays with placeholder objects alternitively another design approach is this one Note that images will render faster than a CGPDFPageRef Use NSOperations or GCD Blocks to prepare pages ahead of time. call CGContextSetInterpolationQuality ctx kCGInterpolationHigh CGContextSetRenderingIntent..
http://stackoverflow.com/questions/4847163/round-two-corners-in-uiview bitmapContext return the image return theImage Now you just need few lines of code. I put stuff in my viewController viewDidLoad method because it's faster but you can use it also in your custom UIView with the layoutSubviews method in example. void viewDidLoad Create the mask image you need calling the previous function.. In this way the bottom rounded corners are hidden and you can only see the upper rounded corner. I put the code just in the viewDidLoad method because it's faster but you can use it also in your custom UIView with the layoutSubviews method in example. void viewDidLoad set the radius CGFloat radius 50.0 set the mask frame..
canonical way to randomize an NSArray in Objective C http://stackoverflow.com/questions/791232/canonical-way-to-randomize-an-nsarray-in-objective-c smaller numbers in the range. static NSUInteger random_below NSUInteger n NSUInteger m 1 Compute smallest power of two greater than n. There's probably a faster solution than this loop but bit twiddling isn't my specialty. do m 1 while m n NSUInteger ret do ret random m while ret n return ret @implementation NSMutableArray..
To ARC or not to ARC? What are the pros and cons? http://stackoverflow.com/questions/8760431/to-arc-or-not-to-arc-what-are-the-pros-and-cons have you found it so far iphone objective c ipad ios5 automatic ref counting share improve this question There is no downside. Use it. Do it today. It is faster than your old code. It is safer than your old code. It is easier than your old code. It is not garbage collection. It has no GC runtime cost. The compiler inserts..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud
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 alternative to glReadPixels in iPhone OpenGL ES 2.0 Is there any faster way to access the frame buffer than using glReadPixels I would need read only access to a small rectangular rendering area in the frame buffer to process the data.. but it seems that OpenGL ES 2.0 does not support them. iphone ios opengl es opengl es 2.0 share improve this question As of iOS 5.0 there is now a faster way to grab data from OpenGL ES. It isn't readily apparent but it turns out that the texture cache support added in iOS 5.0 doesn't just work for fast upload of.. BGRA pixels for that scene will be contained within your CVPixelBufferRef so there will be no need to pull them down using glReadPixels . This is much much faster than using glReadPixels in my benchmarks. I found that on my iPhone 4 glReadPixels was the bottleneck in reading 720p video frames for encoding to disk. It limited..
Optimizing CLLocationManager/CoreLocation to retrieve data points faster on the iPhone http://stackoverflow.com/questions/1081219/optimizing-cllocationmanager-corelocation-to-retrieve-data-points-faster-on-the CLLocationManager CoreLocation to retrieve data points faster on the iPhone I'm currently using CoreLocation CLLocationManager in order to compare a users current location to N amount..
How to save the content in UIWebView for faster loading on next launch? http://stackoverflow.com/questions/1343515/how-to-save-the-content-in-uiwebview-for-faster-loading-on-next-launch to save the content in UIWebView for faster loading on next launch I know that there are some caching classes introduced in the iphone sdk recently and there is also..
How to cache content in UIWebView for faster loading later on? http://stackoverflow.com/questions/1348696/how-to-cache-content-in-uiwebview-for-faster-loading-later-on to cache content in UIWebView for faster loading later on I notice that the iphone safari caches content so that your page load for later is much faster much like.. for faster loading later on I notice that the iphone safari caches content so that your page load for later is much faster much like a desktop browser. So take mobile gmail web page for example the first load is quite slow 5 10 secondS . But if..
Dragging an UIView inside UIScrollView http://stackoverflow.com/questions/1481826/dragging-an-uiview-inside-uiscrollview touchesMoved invocations and scroll view starts scrolling instead. I noticed that this depends on the drag speed the faster I drag the quicker the tile falls . Any ideas on how to keep the tile glued to the dragging finger Thanks in advance iphone..
http://stackoverflow.com/questions/1622729/double-vs-float-on-the-iphone A8 iPhone3GS iPhone4 and iPad single precision arithmetic is done on the NEON unit instead of VFP and is substantially faster. Make sure to turn off thumb mode in your compile settings for armv6 if you are doing intensive floating point computation...
Comparison of JSON Parser for Objective-C (JSON Framework, YAJL, TouchJSON, etc) http://stackoverflow.com/questions/2256625/comparison-of-json-parser-for-objective-c-json-framework-yajl-touchjson-etc share improve this question I had the same results as you for JSON Framework and TouchJSON. TouchJSON claims to be faster but my test with parsing one big 10K array objects JSON string was different JSON Framework was faster. Didn't know about..
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints used arrays with placeholder objects alternitively another design approach is this one Note that images will render faster than a CGPDFPageRef Use NSOperations or GCD Blocks to prepare pages ahead of time. call CGContextSetInterpolationQuality..
Most effective way to do networking on Mac/iPhone? http://stackoverflow.com/questions/4269613/most-effective-way-to-do-networking-on-mac-iphone time with GK. And it's a childish mess created for ten year olds learning programming. You will be able to do 100x faster pairing working directly with AsyncSockets. You may prefer to use some toy GK code while you figure out Bonjour and all..
http://stackoverflow.com/questions/4847163/round-two-corners-in-uiview return theImage Now you just need few lines of code. I put stuff in my viewController viewDidLoad method because it's faster but you can use it also in your custom UIView with the layoutSubviews method in example. void viewDidLoad Create the mask.. are hidden and you can only see the upper rounded corner. I put the code just in the viewDidLoad method because it's faster but you can use it also in your custom UIView with the layoutSubviews method in example. void viewDidLoad set the radius..
canonical way to randomize an NSArray in Objective C http://stackoverflow.com/questions/791232/canonical-way-to-randomize-an-nsarray-in-objective-c NSUInteger random_below NSUInteger n NSUInteger m 1 Compute smallest power of two greater than n. There's probably a faster solution than this loop but bit twiddling isn't my specialty. do m 1 while m n NSUInteger ret do ret random m while ret..
iOS crash log catch, debug info.. Catch and send via email to the Dev team http://stackoverflow.com/questions/8233388/ios-crash-log-catch-debug-info-catch-and-send-via-email-to-the-dev-team iphone ios email crash share improve this question For logging your own data use Cocoalumberjack . It is much faster than NSLog and can be turned on off dynamically. It also provides options to save the data into a file. NSLog will slow..
To ARC or not to ARC? What are the pros and cons? http://stackoverflow.com/questions/8760431/to-arc-or-not-to-arc-what-are-the-pros-and-cons c ipad ios5 automatic ref counting share improve this question There is no downside. Use it. Do it today. It is faster than your old code. It is safer than your old code. It is easier than your old code. It is not garbage collection. It has..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud
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 alternative to glReadPixels in iPhone OpenGL ES 2.0 Is there any faster way to access the frame buffer than using glReadPixels I would need read only access to a small rectangular rendering area.. not support them. iphone ios opengl es opengl es 2.0 share improve this question As of iOS 5.0 there is now a faster way to grab data from OpenGL ES. It isn't readily apparent but it turns out that the texture cache support added in iOS.. within your CVPixelBufferRef so there will be no need to pull them down using glReadPixels . This is much much faster than using glReadPixels in my benchmarks. I found that on my iPhone 4 glReadPixels was the bottleneck in reading 720p video..
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