August 2008
Beginner to intermediate
376 pages
9h 33m
English
Content preview from iPhone: The Missing Manual, 2nd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Brightness
Ordinarily, the iPhone controls its own screen brightness. An ambient-light sensor hidden behind the smoked glass at the top of the iPhone's face samples the room brightness each time you wake the phone, and adjusts the brightness automatically: brighter in bright rooms, dimmer in darker ones.
When you prefer more manual control, here's what you can do:
Brightness slider. Drag the handle on this slider, or just tap on the slider, to control the screen brightness manually, keeping in mind that more brightness means shorter battery life.
If Auto-Brightness is turned on, then the changes you make here are relative to the iPhone's self-chosen brightness. In other words, if you goose the brightness by 20 percent, the screen will always be 20 percent brighter than the iPhone would have chosen for itself.
Auto-Brightness On/Off. Tap anywhere on this switch to disable the ambient-light sensor completely. Now the brightness of the screen is under complete manual control.
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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.
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