iBooks Colors Inverted – iPad Ambient Light Sensor


A reader of mine had a problem with iBooks book colors being inverted. That is, the background turned black instead of white and the content was white instead of black. This only happened when he was reading in low light.

iBooks has an Auto-Night theme. (This is different than the Accessibility color change). Auto-Night in iBooks automatically inverts colors when you are reading in low light. Using your device’s ambient light sensors, the colors on your screen change when it is dark, making the screen black and the words white.

You can turn Auto-Night mode on or off in the iBooks app. Tap the Font button (AA) in the upper right corner of the ebook. You’ll find the control there.

You can test the ambient light sensor of your iPad by covering it up. The location of the sensor is not the same for all iPad models. For example, my iPad Air 2 has two sensors, one near each of the corners at the top of the screen. So if you were wondering just what those two holes are for in your iPad Air 2 case, now you know. Cover both of them to turn Auto-Night on while viewing an iBook. You can find the location of the ambient light sensor(s) for any model iPad in Apple’s Developer Guidelines for Case Design. Look for the item(s) labeled ALS in the diagrams.

 
Facebooktwittergoogle_pluspinterestlinkedin
 
Want to know more about how to use your iPad, iPhone or Mac?

http://ipadacademy.com/a-crazy-good-deal-on-tutorials-for-ipad-iphone-mac/

About Andy Brovey

Dr. Andy Brovey, The Portable Prof, has over 30 years experience in educational technology, including teaching, administration and professional development. In 2007, Apple Inc. recognized his work and named him an Apple Distinguished Educator. Andy now runs a professional development business, working on site and online to help others make sense and make use of digital tools. He started this iPad Academy website shortly after the first iPad went on sale to help others become more comfortable and competent with the iPad, in person and online. Click Here for Video Lessons