I\'ve created a custom UIView which overrides the drawRect method using Quartz. I\'ve eventually managed to get everything working exactly how I want it to however there is a really peculiar behaviour
Does anyone know of any existing code that will draw a graph for me in my iPhone application? I just need a simple line graph without labels or a title or even axis labels for the data.
I have read the Apple PDF documentation wi开发者_运维技巧th Quartz. But I do not know how to generate the thumbnails from a PDF document...
i\'m handing off to this method and using the resultant CGImageRef adding it to a CGImageDestinationRef that is setup for finalizing as a kUTTypeJPEG:
Background: My app saves user-inputted information into plist files. When a photo is taken, or selected from the library, the photo is saved as NSData to the plist as well.
I have a view on which I\'ve set the layerOpacity to 1. theView.layer.shadowOpaci开发者_JS百科ty = 1.0;
I\'m trying to draw an animated growing line using Quartz 2d, by adding points to an existing line, gradually over time. I started drawing a new line, In the drawRect method of a UIView, by obtaining
I\'m drawing an image with开发者_JS百科 strechable caps defined like the following: [bubbleImg stretchableImageWithLeftCapWidth:17 topCapHeight:12];
I can draw a path...and i am somewhat sure that i need to use affine transform. what i don\'t get is how to rotate the path and keep the same center.
I have been able to add shadows to many UI objects in my view, including rather nicely drop shadowing some custom drawing in a UIImageView.However the same code produces nothing when applied to a UITe
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