In an iPhone app I have a set of black and white images. I need a function which changes the white areas of the image to transparent and the black to an arbitrary color.
I am subclassing UIView, retrieving a remote image then drawing it to the view using drawRect.This works fine, but the image is then skewed based upon what I set for my views frame.
I have a UIImageView on which I am adding multiple UIImages on multiple click of a button and moving it with the help of TouchesMoevd.
I have an image that is totally white in its RGB components, with varying alpha -- so, for example, 0xFFFFFF09 in RGBA format.But when I load this image with either UIImage or CGImage APIs, and then d
In ipad development is there a way to get the 1st page of a pdf file as UIImage??? if u dont have the exact solution now can u tell me which way should I proceed??
Following is a code to display a button to the toolbar. UIButton myButton = [UIButton buttonWithType:UIButtonTypeCustom];
I am trying to initialize a UIBar开发者_运维技巧ButtonItem with an Image. The available method is initWithImage. When I do this, the image is just a block of color. I want to be able to resize this im
I am using a transparent image with a cut out for a user to insert / take their own image. For some reason, while using the UIImagePickerControllerEditedImage and cropping the 开发者_开发问答user-take
I am trying to mask an image so that I can give it only two rounded corners.With the code that I have it just adds the mask in white over the image, but doesn\'t seem to apply it.Whatdo I need to do d
I am a relative novice who is teaching himself Objective-C on Xcode to develop some simple iPhone game apps. I have done some reading on this but fear I\'m missing something basic and obvious.
加载中,请稍侯......