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2014/10/15 ¤U¤È 10:05:00
iphone Programming Glossary: cgcontextclosepathBlur an image of specific part (rectangular, circular)? http://stackoverflow.com/questions/14107979/blur-an-image-of-specific-part-rectangular-circular radious CGContextAddArcToPoint context rectWidth 0.0f rectWidth rectHeight 2.0f radious CGContextRestoreGState context CGContextClosePath context CGContextClip context image drawInRect CGRectMake 0.0f 0.0f imageWidth imageHeight UIImage newImage UIGraphicsGetImageFromCurrentImageContext..
http://stackoverflow.com/questions/205431/rounded-corners-on-uiimage 90.0 PNDegreeToRadian 180.0 NO CGContextBeginPath maskedContextRef CGContextAddPath maskedContextRef borderPath CGContextClosePath maskedContextRef CGContextClip maskedContextRef self drawInRect dstRect maskedImage UIGraphicsGetImageFromCurrentImageContext..
Rounded UIView using CALayers - only some corners - How? http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how CGContextAddArc context rect.origin.x radius rect.origin.y radius radius M_PI 2 M_PI 1 add the other corners here CGContextClosePath context CGContextRestoreGState context UIImage setImage UIImage img UIImage imageNamed @ my_image.png int w img.size.width.. CGContextBeginPath context CGRect rect CGRectMake 0 0 w h addRoundedRectToPath context rect 50 1 CGContextClosePath context CGContextClip context CGContextDrawImage context rect img.CGImage CGImageRef imageMasked CGBitmapContextCreateImage..
How to customize the background/border colors of a grouped table view cell? http://stackoverflow.com/questions/400965/how-to-customize-the-background-border-colors-of-a-grouped-table-view-cell
Why animating custom CALayer properties causes other properties to be nil during animation? http://stackoverflow.com/questions/4016496/why-animating-custom-calayer-properties-causes-other-properties-to-be-nil-during centerPoint.y CGContextAddArc ctx centerPoint.x centerPoint.y self.radius doubleValue radians 0 radians 360 0 CGContextClosePath ctx Filling it CGContextSetFillColorWithColor ctx self.tint.CGColor CGContextFillPath ctx I want the radius to be animatable..
How to draw a “speech bubble” on an iPhone? http://stackoverflow.com/questions/4442126/how-to-draw-a-speech-bubble-on-an-iphone 0.5f currentFrame.size.width strokeWidth 0.5f HEIGHTOFPOPUPTRIANGLE strokeWidth 0.5f borderRadius strokeWidth CGContextClosePath context CGContextDrawPath context kCGPathFillStroke Draw a clipping path for the fill CGContextBeginPath context CGContextMoveToPoint.. strokeWidth 0.5f round currentFrame.size.height HEIGHTOFPOPUPTRIANGLE 0.50f 0.5f borderRadius strokeWidth CGContextClosePath context CGContextClip context The clipping path at the end can be left out if you're not going to use a gradient or some..
Just two rounded corners? [duplicate] http://stackoverflow.com/questions/4845211/just-two-rounded-corners context rect.origin.x rect.origin.y CGContextAddLineToPoint context rect.origin.x rect.origin.y radius CGContextClosePath context This takes a bitmask I called it UIImageRoundedCorner because I was doing this for images but you can call it whatever.. apply that path to the view in drawRect CGContextBeginPath context addRoundedRectToPath context rect radius yourMask CGContextClosePath context CGContextClip context As I said I was doing this for UIImages so my code isn't exactly set up for use in drawRect..
http://stackoverflow.com/questions/4847163/round-two-corners-in-uiview context rect.origin.x rect.size.width radius rect.origin.y rect.size.height radius radius M_PI 2 0.0f 1 CGContextClosePath context CGContextClip context The method is being called but doesn't seem to affect the outcome of the view. Any ideas why.. CGRectGetMaxY rect CGContextBeginPath context CGContextSetGrayFillColor context 1.0 0.0 CGContextAddRect context rect CGContextClosePath context CGContextDrawPath context kCGPathFill CGContextSetGrayFillColor context 1.0 1.0 CGContextBeginPath context CGContextMoveToPoint.. context maxx maxy midx maxy radius_tr CGContextAddArcToPoint context minx maxy minx midy radius_tl CGContextClosePath context CGContextDrawPath context kCGPathFill Create CGImageRef of the main view bitmap content and then release that bitmap..
UITextView ruled line background but wrong line height http://stackoverflow.com/questions/5375350/uitextview-ruled-line-background-but-wrong-line-height context self.bounds.size.width self.font.leading x 0.5f baselineOffset Close our Path and Stroke draw it CGContextClosePath context CGContextStrokePath context @end MyViewController.h #import UIKit UIKit.h #import NoteView.h @interface MyViewController..
iPhone Glossy Icons Using Core Graphics http://stackoverflow.com/questions/5541457/iphone-glossy-icons-using-core-graphics context 0 fh 0 fh 2 1 CGContextAddArcToPoint context 0 0 fw 2 0 1 CGContextAddArcToPoint context fw 0 fw fh 2 1 CGContextClosePath context CGContextRestoreGState context static void addGlossPath CGContextRef context CGRect rect CGFloat quarterHeight CGRectGetMidY.. rect quarterHeight 3 CGRectGetMaxX rect 20 quarterHeight CGContextAddLineToPoint context CGRectGetMaxX rect 20 0 CGContextClosePath context CGContextRestoreGState context UIImage applyIconHighlightToImage UIImage icon UIImage newImage CGContextRef context.. context UIGraphicsGetCurrentContext UIGraphicsPushContext context addRoundedRectToPath context currentBounds 10 10 CGContextClosePath context CGContextClip context icon drawInRect currentBounds addGlossPath context currentBounds CGContextClip context rgbColorspace..
http://stackoverflow.com/questions/962827/uiimage-shadow-trouble CGContextBeginPath imageContext CGRect rect CGRectMake 0 0 w h addRoundedRectToPath imageContext rect 10 10 CGContextClosePath imageContext CGContextClip imageContext CGContextDrawImage imageContext CGRectMake 0 0 w h source.CGImage CGImageRef imageMasked..
Beginner iphone question: drawing a rectangle. What am I doing wrong? http://stackoverflow.com/questions/970137/beginner-iphone-question-drawing-a-rectangle-what-am-i-doing-wrong context 250.0 100.0 CGContextAddLineToPoint context 250.0 350.0 CGContextAddLineToPoint context 50.0 350.0 end path CGContextClosePath context close path CGContextSetLineWidth context 8.0 this is set from now on until you explicitly change it CGContextStrokePath..
How to mask a square image into an image with round corners in the iPhone SDK? http://stackoverflow.com/questions/996292/how-to-mask-a-square-image-into-an-image-with-round-corners-in-the-iphone-sdk context 0 fh 0 fh 2 1 CGContextAddArcToPoint context 0 0 fw 2 0 1 CGContextAddArcToPoint context fw 0 fw fh 2 1 CGContextClosePath context CGContextRestoreGState context And then call CGContextClip context to clip it to the rectangle path. Now any drawing..
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