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2014/10/15 ¤U¤È 10:14:05
iphone Programming Glossary: shadowsFastest way to do shadows on iOS? http://stackoverflow.com/questions/10133109/fastest-way-to-do-shadows-on-ios way to do shadows on iOS QuartzCore .layer.shadow's suck up performance. They appear to need to be re rendered every time something changes.. to need to be re rendered every time something changes causing everything to lag. Coregraphics gradient for 1 way shadows doesn't look right. if your gradient goes from 0.3 alpha to 0 it has some odd effect where you can 'see' it stop. It just..
Drop Shadow on UITextField text http://stackoverflow.com/questions/1274168/drop-shadow-on-uitextfield-text objective c uikit uitextfield shadow share improve this question I don't think you get built in support for text shadows here the way you do with UILabel . Two ideas 1 Moderately tricky to code. Add a second UITextField behind the original at.. drawing function such as drawTextInRect which is specific to UITextField . Now set up the drawing context to draw shadows via the CGContextSetShadow functions and call super drawRect rect . Hopefully that works in case the original UITextField..
http://stackoverflow.com/questions/1356250/iphone-blur-uiimage need to blur that image Gaussian blur would do . iPhone clearly knows how to blur images as it does that when it draws shadows . However I did not found anything related in the API. Do I have to do blurring by hand without hardware acceleration iphone..
http://stackoverflow.com/questions/1420131/iphone-text-glow-effect 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 label.textColor CGColor label.layer.shadowOffset CGSizeMake 0.0 0.0 Play with the parameters..
Shadow or Border around a scrollview iphone http://stackoverflow.com/questions/1562610/shadow-or-border-around-a-scrollview-iphone 2 myView.layer.borderColor UIColor blackColor .CGColor You can also use the layer to apply real time shadows by setting the layer.shadow properties but performance can be slow with this technique so I generally prefer to use the.. following more complex but more performant technique. You can create a PNG image with transparency in the middle and shadows around the edge it needs to have 9 distinct areas 4 for each corner 4 for each edge and a completely transparent 1x1 pixel.. 6 6 6 6 Then you put the image on the parent view so it takes up the entire area of the scroll view. If you want the shadows to go OVER your scrollable elements so your scroll view looks inset behind the rest of the page then place a transparent..
Adding a header view to a UIWebView similar to Safari and Articles http://stackoverflow.com/questions/2483028/adding-a-header-view-to-a-uiwebview-similar-to-safari-and-articles cycle through all webview.scrollView subviews look for the biggest wich should contains the browser the others are for shadows and lines change its origin.y here's the code CGRect browserCanvas web.bounds for int i 0 i web.scrollView subviews count..
How to tint a transparent PNG image in iPhone? http://stackoverflow.com/questions/3514066/how-to-tint-a-transparent-png-image-in-iphone lighter than your tinting color. On the contrary if you have either a non greyscale image OR you have highlights and shadows that should be preserved the blend mode kCGBlendModeColor is the way to go. White will stay white and black will stay black..
iPhone UITableViewCell layer shadow http://stackoverflow.com/questions/3546880/iphone-uitableviewcell-layer-shadow
Drawing shadow with Quartz is slow on iPhone & iPad. Another way? http://stackoverflow.com/questions/3677564/drawing-shadow-with-quartz-is-slow-on-iphone-ipad-another-way with Quartz is slow on iPhone iPad. Another way I was pretty excited when I found out just how easy it is to add shadows to my UIViews on the iPhone iPad. Just add the framework in Xcode add the import to the top of the file #import QuartzCore.. share improve this question You should set the shadowPath property . It is how CoreGraphics is able to optimize shadows. For example if your view is an opaque rectangle self.contentView.layer.shadowPath UIBezierPath bezierPathWithRect self.contentView.bounds..
http://stackoverflow.com/questions/3798930/iphone-bullet-point-list disable bouncing UIScrollView sv UIScrollView v sv.alwaysBounceVertical NO sv.alwaysBounceHorizontal NO disable scroll shadows for UIView subView in sv subviews if subView class description isEqualToString @ UIImageView subView.hidden YES I haven't..
iPhone - flattening a UIImageView and subviews to image = blank image http://stackoverflow.com/questions/3869692/iphone-flattening-a-uiimageview-and-subviews-to-image-blank-image and subviews to image blank image I have a UIImageView with zillions of views. Some of these views have layer shadows or glow. This view is slightly bigger than the device screen. This view is basically a big transparent view that contains..
Applying a Gradient to CAShapeLayer http://stackoverflow.com/questions/4733966/applying-a-gradient-to-cashapelayer I'd like it to have a gradient fill actually an animatable gradient at that . Everything else to do with CAShapeLayer shadows shapes stroke color animatable shape path is fantastic. I've tried placing a CAGradientLayer inside a CAShapeLayer or indeed.. colors gradientLayer setMask gradientMask v.layer addSublayer gradientLayer If you want to also use the shadows you would have to place a duplicate of the shape layer under the gradient layer recycling the same path reference. share..
how to draw 3D pie chart using core-plot in ipad? [closed] http://stackoverflow.com/questions/7977557/how-to-draw-3d-pie-chart-using-core-plot-in-ipad
How do I draw a shadow under a UIView? http://stackoverflow.com/questions/805872/how-do-i-draw-a-shadow-under-a-uiview the function CGContextSetShadow passing the appropriate values. Perform all the drawing to which you want to apply shadows. Restore the graphics state I've tried the following in a UIView subclass void drawRect CGRect rect CGContextRef currentContext..
http://stackoverflow.com/questions/962827/uiimage-shadow-trouble Shadow Trouble I'm trying to add a small shadow to an image much like the icon shadows in the App Store. Right now I'm using the following code to round the corners of my images. Does anyone know how I can adapt.. documentation http developer.apple.com iPhone library documentation GraphicsImaging Conceptual drawingwithquartz2d dq_shadows dq_shadows.html# apple_ref doc uid TP30001066 CH208 TPXREF101 Next try adding something like this right before the call.. http developer.apple.com iPhone library documentation GraphicsImaging Conceptual drawingwithquartz2d dq_shadows dq_shadows.html# apple_ref doc uid TP30001066 CH208 TPXREF101 Next try adding something like this right before the call to CGContextDrawImage..
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