Join Kevin Favro for an in-depth discussion in this video Reduce transparency, part of iOS App Development: Accessibility.
- [Instructor] In our app, our cells use…a transparent background to overlay text…on top of the background image.…This is a nice effect, but for some users…this design can be difficult to read.…Fortunately, there's a setting users can adjust…to request that interfaces reduce…the amount of transparency.…This setting can be toggled by going to Settings, General,…Accessibility, Increase Contrast, Reduce Transparency.…If we go back to our app we'll see…that we're not supporting that preference yet.…
And in this video we'll learn how to alter…our interface to respect a user's preference.…We'll do this by working through common pitfalls…when working with colors and transparency.…Back in Xcode if we open up IndexTableViewCell.swift…and go to our awakeFromNib method…and open up a new line, on line 34…we can check the value of this preference…by using the UIKit method, UIAccessibility…IsReduceTransparencyEnabled.…
And if it is, we'll set our textBackdrop.alpha to 1,…which means our backdrop view will be completely opaque.…
In this course, explore the different accessibility technologies that are built into iOS, and learn how to build apps that all users can access. Follow Kevin Favro as he explains how to audit your app for accessibility problems, and explores various iOS technologies—including VoiceOver, a screen reader that lets you use phone even if you don't see the screen—and other considerations that might prevent someone from effectively using your app.
- Reviewing the accessibility features in iOS
- Exploring accessibility settings
- Working with VoiceOver
- Exploring Switch Control
- Using the Accessibility Inspector
- Using VoiceOver to audit your app
- Reviewing Dynamic Type
- Reducing transparency
- Reducing motion
- Setting bold fonts and darker colors
- Understanding how elements are opted into the accessibility system
- Making custom objects accessible
- Working with the VoiceOver rotor
- Working with Guided Access
Skill Level Intermediate
1. Accessibility Overview
2. Accessibility Audit
3. Improving Our App: Visual Accommodations
4. Improving Our App: Semantic Accessibility
5. Improving Our App: Accessibility Customizations
6. Improving Our App: Guided Access
- Mark as unwatched
- Mark all as unwatched
Are you sure you want to mark all the videos in this course as unwatched?
This will not affect your course history, your reports, or your certificates of completion for this course.Cancel
Take notes with your new membership!
Type in the entry box, then click Enter to save your note.
1:30Press on any video thumbnail to jump immediately to the timecode shown.
Notes are saved with you account but can also be exported as plain text, MS Word, PDF, Google Doc, or Evernote.