2014/10/15 下午 10:09:55

iphone Programming Glossary: graphic

iPhone - multiple targets multiple launch images nightmare

http://stackoverflow.com/questions/10056794/iphone-multiple-targets-multiple-launch-images-nightmare

AAADefaultiPhone@2x.png and BBBDefaultiPhone.png Edit 1 Place the images as you would place a image file into your graphic resources. Do not place it in the image space under Target Summary . Works for me pretty well. share improve this answer..

Basic keyframe animation (rotation)

http://stackoverflow.com/questions/1031177/basic-keyframe-animation-rotation

keyframe animation rotation I'm trying to create a very simple keyframe animation whereby a graphic Rotates from one angle to another through a given midpoint. The purpose is to be able to animate rotation through an OBTUSE.. I assume I need an extra keyframe midway through along the desired arc. Here's what I've got so far which does get the graphic to the desired rotation via the most acute angle #define DEGREES_TO_RADIANS __ANGLE__ __ANGLE__ 180.0 M_PI ... UIView beginAnimations.. cgCTM CGAffineTransformMakeRotation DEGREES_TO_RADIANS desiredEndingAngle UIView setAnimationDuration 0.5 graphic.transform cgCTM UIView commitAnimations As I understand it I 联 not looking for animation along a Path since that 䏭 for Translation..

IPhone Text Glow Effect

http://stackoverflow.com/questions/1420131/iphone-text-glow-effect

second then fade for a sec . Also i want to repeat this cycle for say 3 or 4 times. Is this possible iphone animation graphics glow graphic effects share improve this question As of 3.2 you there is direct support for shadows in the SDK. label.layer.shadowColor.. for a sec . Also i want to repeat this cycle for say 3 or 4 times. Is this possible iphone animation graphics glow graphic effects share improve this question As of 3.2 you there is direct support for shadows in the SDK. label.layer.shadowColor..

HowTo initialise MKMapView with a given user location?

http://stackoverflow.com/questions/1437568/howto-initialise-mkmapview-with-a-given-user-location

To make it so it shows right at startup you will need to create a custom MKAnnotationView with just the blue marble graphic added at the location returned by the location manager. This means taking a snapshot of a Mapview with the location showing..

to drawRect or not to drawRect (when should one use drawRect/Core Graphics vs subviews/images and why?)

http://stackoverflow.com/questions/14659563/to-drawrect-or-not-to-drawrect-when-should-one-use-drawrect-core-graphics-vs-su

Practical Drawing for iOS Developers and many iOS programming books . There are even awesome looking tools to design graphics and generate Core Graphics code for them. So at first I'm lead to believe there 䏭 a reason why Core Graphics exists. It.. example You have a flexible UI element that can't be executed with a simple resizable image You are creating a dynamic graphic that once rendered is used in multiple places I see situations to avoid Core Graphics Properties of your view need to be.. Update Thanks for the information everyone. Some clarifying questions here If you are drawing something with core graphics but can accomplish the same thing with UIImageViews and a pre rendered png should you always go that route A similar question..

Annotate PDF within iPhone SDK

http://stackoverflow.com/questions/2313008/annotate-pdf-within-iphone-sdk

pdf annotate share improve this question You can do annotation by reading in a PDF page drawing it onto a new PDF graphics context then drawing extra content onto that graphic context. Here is some code that adds the words 'Example annotation'.. do annotation by reading in a PDF page drawing it onto a new PDF graphics context then drawing extra content onto that graphic context. Here is some code that adds the words 'Example annotation' at position 100.0 100.0 to an existing PDF. The method.. page CGPDFDocumentGetPage document 1 grab page 1 of the PDF CGContextDrawPDFPage currentContext page draw page 1 into graphics context flip context so annotations are right way up CGContextScaleCTM currentContext 1.0 1.0 CGContextTranslateCTM currentContext..

How to animate the change of image in an UIImageView?

http://stackoverflow.com/questions/2834573/how-to-animate-the-change-of-image-in-an-uiimageview

animate the change of image in an UIImageView I have an UIImageView with an image. Now I have a completely new image graphic file and want to display that in this UIImageView. If I just set myImageView.image newImage the new image is visible immediately...

Styling <select> tag for iPhone

http://stackoverflow.com/questions/3796580/styling-select-tag-for-iphone

Need 2D iPhone graphics designed

http://stackoverflow.com/questions/4104124/need-2d-iphone-graphics-designed

2D iPhone graphics designed I'm in the process of developing a tower defense game for iOS devices but my artistic skills are not what they.. my spare time and the budget is very small but i hope there is someplace to go for indie developers too iphone design graphics cocos2d iphone share improve this question Check out http gamedev.stackexchange.com . and the answers to some of these..

Gradients on UIView and UILabels On iPhone [duplicate]

http://stackoverflow.com/questions/422066/gradients-on-uiview-and-uilabels-on-iphone

to display text in either a View or Label but the back ground must be a gradient as opposed to a true color. Using a graphics program to create desired look is no good as the text may vary depending on data returned from a server. Does anyone know.. are greatly appreciated. iphone ios cocoa touch gradient share improve this question You could also use a graphic image one pixel wide as the gradient and set the view property to expand the graphic to fill the view assuming you are thinking.. question You could also use a graphic image one pixel wide as the gradient and set the view property to expand the graphic to fill the view assuming you are thinking of a simple linear gradient and not some kind of radial graphic . share improve..

PDF Generation From UIScrollView + iphone

http://stackoverflow.com/questions/5268943/pdf-generation-from-uiscrollview-iphone

iphone I want to generate a pdf of UIScrollView whose content size is near about 320 2000. If I use current graphic image context to capture the scroll view layer then it only captures the visible part of the scroll view not the whole layer..

Line spacing and paragraph alignment in CoreText

http://stackoverflow.com/questions/5312962/line-spacing-and-paragraph-alignment-in-coretext

The maximum height that any line in the frame will occupy regardless of the font size or size of any attached graphic. Glyphs and graphics exceeding this height will overlap neighboring lines. A maximum height of 0 implies no line height.. height that any line in the frame will occupy regardless of the font size or size of any attached graphic. Glyphs and graphics exceeding this height will overlap neighboring lines. A maximum height of 0 implies no line height limit. This value is..

How to set accuracy and distance filter when using MKMapView

http://stackoverflow.com/questions/5930612/how-to-set-accuracy-and-distance-filter-when-using-mkmapview

a custom annotation with a blue dot which means recentering the map manually as posted. You can get teh blue dot graphic from the SDK with the github project artwork extractor. I don't know if I'm missing something or this part of MKMapView..

Why is UIBezierPath faster than Core Graphics path?

http://stackoverflow.com/questions/6327817/why-is-uibezierpath-faster-than-core-graphics-path

and flatness When examining the call disassembly to path stroke you will note that it configures the current graphic context based on those previous values before performing the CGContextStrokePath call. If you do the same prior to drawing..

draw a line in UIImageView problem

http://stackoverflow.com/questions/680855/draw-a-line-in-uiimageview-problem

0 0 drawImage.frame.size.width drawImage.frame.size.height sets the style for the endpoints of lines drawn in a graphics context CGContextRef ctx UIGraphicsGetCurrentContext CGContextSetLineCap ctx kCGLineCapButt sets the line width for a graphic.. context CGContextRef ctx UIGraphicsGetCurrentContext CGContextSetLineCap ctx kCGLineCapButt sets the line width for a graphic context CGContextSetLineWidth ctx 2.0 set the line colour CGContextSetRGBStrokeColor ctx 1.0 0.0 0.0 1.0 creates a new empty.. ctx 2.0 set the line colour CGContextSetRGBStrokeColor ctx 1.0 0.0 0.0 1.0 creates a new empty path in a graphics context CGContextBeginPath ctx begin a new path at the point you specify CGContextMoveToPoint ctx currentPoint.x currentPoint.y..

Animated GIF alternative for iOS

http://stackoverflow.com/questions/7218889/animated-gif-alternative-for-ios

in wherever you want an animated image. I'd like to display an animated image within an iOS application for example a graphic illustrating a letter being opened from an envelope . But I'm not sure how to go about this. Obviously I don't want to use..

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

me if I'm wrong . The filtering which I'm using at the moment is as follows UIImage grayishImage UIImage i Create a graphic context. UIGraphicsBeginImageContextWithOptions i.size YES 1.0 CGRect imageRect CGRectMake 0 0 i.size.width i.size.height..