I am using following code to draw a line based on touch moved as it is in MS Paint? It worksfine.but when I try to draw a line again after touch Ended, The previous line is erased..any help please?
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 t
I\'m trying to create previews images of pages in a PDF but I have some problems with the release of memory.
I\'m trying to understand how the CGContextMoveToPoint function works. B开发者_运维知识库asically, I have a CGPath that I want to draw multiple times at varying y offsets. To do so, I thought I\'d use
I Wanted to render a UIView into a CGContextRef -(void)methodName:(CGContextRef)ctx { UIView *someView 开发者_StackOverflow= [[UIView alloc] init];
Why am I getting the following errors when trying to install my iPhone application? warning: Unable to read symbols for /Library/MobileSubstrate/MobileSubstrate.dylib (file not found).
I\'m drawing multiple \'pages\' of imagery using a CGContext in the iOS. I\'ve used sizeWithFont and drawInRect combinations extensively in my app. What I need to do is split a large chunk of text acr
So ... I have this ap开发者_StackOverflow中文版p that draws shapes and then the user can color them. I made a tabbar that has 4 shapes and when one is clicked the respective shape is drawn. I took the
i\'m in troubled show lyrics .i use uitextview show lyrics code snips IBOutlet UILabel *lrcshow; IBOutlet开发者_开发知识库 UITextView *showlrc;
In my subclass of UIView, custom drawing. The original drawing works fine, i.e. when triggered from viewDidLoad or else from a swipe or shake gesture, which clears the screen and redraws.
加载中,请稍侯......