November 2013
Intermediate to advanced
576 pages
19h 3m
English
book
iOS Components and Frameworks: Understanding the Advanced Features of the iOS SDK
by Kyle Richter, Joe Keeley
Content preview from iOS Components and Frameworks: Understanding the Advanced Features of the iOS SDK
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Filter Attributes
Core Image filters have a flexible approach to customization. All instances of CIFilter have a dictionary property called attributes that contains information about the filter and all the customizations to the filter. Instances of CIFilter have a property called inputKeys, which lists the keys of each customizable input item, and a property called outputKeys, which lists the output items from the filter.
The sample app has specialized table cells to enable the user to see what attributes are available for a selected filter, adjust those attributes, and preview the image based on the current attribute parameters, as shown in Figure 19.5.
Figure 19.5 Sample app: Add Color Monochrome Filter, Filter Attributes.
Each attribute ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.