I\'m trying to create a method which flips a UIImage along the X axis, Y axis, or both. I keep getting close but my transform knowledge isn\'t good enough to get all the way there. Here is the code I
For an ios app I\'m writing, I\'d like to take an photo from the photo library and then let the user \"clean it up\", essentially deleting parts of it that are not needed. For example, suppose the use
I have a custom UIImageView, I can drag it around screen by making a translation with (xDif and yDif is the amount fingers moved):
I am new to android. I want to develop a 2d graphical program. My requirem开发者_JAVA百科ent is when i am giving the values of x-axis, y axis values and press triangle it will form triangle ,press c
Cocoa/Carbon uses quartz underneath to create the UI. I am trying to get the quartz code generated when we create button in cocoa?
so I have a UILabel subclass that only crashes every so often on first load. The label is in my root view controller so it is one of the first objects loaded. The problem is, it keeps crashing on a li
When I create a CGContextRef manually using CGBitmapContextCreate(), do I have to manually free the bitmap data as well?
I am trying to figure out the way to convert a given point from the window’s base coordinate system to the screen coordinate system. I mean something like - (NSPoint)convertBaseToScreen:(NSPoint)poin
I\'m currently using a bit of modified code from Get PDF hyperlinks on iOS with Quartz to search for annotations in a pdf and then placing buttons over them for navigation. It\'s currently passing the
I am implementing a UItableView with custom cells. My custom cell has a UIView inside of it. I am trying to draw extensive CoreGraphics shapes with gradients in the UIView and I am running into scro
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