2014/10/15 下午 10:13:03

iphone Programming Glossary: pure

Is there an easy way or library available to let text glow?

http://stackoverflow.com/questions/1229721/is-there-an-easy-way-or-library-available-to-let-text-glow

I've found nothing in the iPhone SDK that would do it. iphone share improve this question You can do this using pure Quartz drawing. Within drawRect for a UIView or renderInContext for a CALayer the following code will draw text and apply..

How to implement Blowfish algorithm in iOS

http://stackoverflow.com/questions/13507384/how-to-implement-blowfish-algorithm-in-ios

withBytes dl decryptedData replaceBytesInRange aRightRange withBytes dr return decryptedData You might want to return pure bytes or Base64 string. For the last case I have a category which adds an initialiser which initialises NSData object with..

AurioTouch & FFT for an instrument tuner

http://stackoverflow.com/questions/1447059/auriotouch-fft-for-an-instrument-tuner

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

my take at this for future readers. You can indeed scroll to a particular page in a PDF document using nothing but pure Java Script. I've posted sample code on our blog http apptech.next munich.com 2011 02 pdf in uiwebview.html but here's a..

Is it possible, in principle, for an Android device to interface with an iPhone over Bluetooth/GameKit?

http://stackoverflow.com/questions/2080644/is-it-possible-in-principle-for-an-android-device-to-interface-with-an-iphone

possible in principle for an Android device to interface with an iPhone over Bluetooth GameKit I am not interested in pure theory but as a practical near or mid term possibility say within 12 24 months. As a developer familiar with but not specializing..

Is there any way at all that I can tell how hard the screen is being pressed

http://stackoverflow.com/questions/2103447/is-there-any-way-at-all-that-i-can-tell-how-hard-the-screen-is-being-pressed

assign nonatomic setter _setPathMajorRadius CGFloat _pathMajorRadius so the code above could be rewritten using pure Objective C void touchesBegan NSSet touches withEvent UIEvent event UITouch any_touch touches anyObject if any_touch._pathMajorRadius..

How i count red color pixel from the UIImage using objective-C in iphone?

http://stackoverflow.com/questions/2342327/how-i-count-red-color-pixel-from-the-uiimage-using-objective-c-in-iphone

Miscellaneous PixelAccess The important bit is the following code which takes a UIImage and then counts the number of pure red pixels. It is an example and you can use it and modify it for your own algorithms Structure to keep one pixel in RRRRRRRRGGGGGGGGBBBBBBBBAAAAAAAA.. RRRRRRRRGGGGGGGGBBBBBBBBAAAAAAAA format struct pixel unsigned char r g b a Process the image and return the number of pure red pixels in it. NSUInteger processImage UIImage image NSUInteger numberOfRedPixels 0 Allocate a buffer big enough to hold.. in our own buffer we can loop over the pixels to process it. This simple case simply counts all pixels that have a pure red component. There are probably more efficient and interesting ways to do this. But the important part is that the pixels..

How do I stack images to simulate depth using Core Animation?

http://stackoverflow.com/questions/2834985/how-do-i-stack-images-to-simulate-depth-using-core-animation

containing layer. I believe the following code will do this but I've not tested it I've done something similar with pure CALayers so the general principles are correct void viewDidLoad UIImageView three UIImageView alloc initWithImage UIImage..

Instagram Image Filters on iPhone

http://stackoverflow.com/questions/3928862/instagram-image-filters-on-iphone

c share improve this question Folks I have made an attempt at replicating instagram and photoshop filters using pure CoreGraphics and direct pixel manipulation not using OpenGL. Find this project at https github.com esilverberg ios image..

Convert decimal to fraction in Objective-C?

http://stackoverflow.com/questions/5552537/convert-decimal-to-fraction-in-objective-c

Convert decimals to fractions iphone objective c xcode formatting share improve this question Objective C uses pure C for basically all primitive mathematical operations. This being said you'll find all necessary information along with..

OpenGL-ES 2.0 VS OpenGL-ES 1.1, which is faster?

http://stackoverflow.com/questions/5682010/opengl-es-2-0-vs-opengl-es-1-1-which-is-faster

these structures. These objects look perfectly round and smooth at any magnification. Doing this in OpenGL ES 1.1 with pure geometry would be all but impossible because the number of triangles required would be ridiculous also billboards wouldn't..

What exactly does delegate do in xcode ios project?

http://stackoverflow.com/questions/7215698/what-exactly-does-delegate-do-in-xcode-ios-project

us the delegate datasource class that will answer the questions the control will ask. At this point the control is a pure control. It knows nothing about how you get your data. It's asking for an object id that implements a contract protocol...

Why doesn't @contenteditable work on the iPhone?

http://stackoverflow.com/questions/723592/why-doesnt-contenteditable-work-on-the-iphone

on my iPhone I can't get it to work. Anyone have success with this You can try it with this document admittedly not pure html but that document works in desktop Safari and Chrome and Firefox 3 . I haven't been able to get even the simplest html..

What's the difference between “version number” in itunes connect, “bundle version”, “bundle version string” in xcode?

http://stackoverflow.com/questions/7281085/whats-the-difference-between-version-number-in-itunes-connect-bundle-versio

to the version of your application. iTunes Connect This is the version number shown in the App Store This must be a pure version number like 1.2.3 Bundle Version CFBundleVersion This doesn't need to be a pure version number. This can be something.. the App Store This must be a pure version number like 1.2.3 Bundle Version CFBundleVersion This doesn't need to be a pure version number. This can be something like 12345 or 1.2.3 Build 12345AB . This is shown in the About window for Mac OS X..

iPhone fetch data dictionary from keychain

http://stackoverflow.com/questions/7827730/iphone-fetch-data-dictionary-from-keychain

then we need to release the resulting Core Foundation object ourself. Which we do in line 4. Lines 2 3 and 4 are pure C code using Core Foundation types so ARC will have nothing to do or complain about them. In line 5 we tell ARC that SecItemCopyMatching..

Draw glow around inside edge of multiple CGPaths

http://stackoverflow.com/questions/8480401/draw-glow-around-inside-edge-of-multiple-cgpaths

our glow color everywhere outside of the mask path union area. We can use UIKit functions to make this easier than a pure CoreGraphics approach UIImage invertedImageWithMask UIImage mask color UIColor color CGRect rect CGPointZero mask.size UIGraphicsBeginImageContextWithOptions..

Learning OpenGLES 2.0 on iOS

http://stackoverflow.com/questions/8482327/learning-opengles-2-0-on-ios

find OpenGL ES 2.0 material for iOS or any OS really than it used to be a year or so ago. For something written from a pure iOS perspective it's hard to beat Jeff LaMarche's chapters from his unpublished book which start here . You linked to his..

Converting a UIImage black'n white and not grayscale for using tesseract

http://stackoverflow.com/questions/9992078/converting-a-uiimage-blackn-white-and-not-grayscale-for-using-tesseract

UIGraphicsEndImageContext return filteredImage Can anyone supply me with the filter to get pure black and white pixels and not grayscale images iphone image filter uiimage tesseract share improve this question Probably..