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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Wi-Fi
Wi-Fi—wireless Internet networking—is one of the iPhone's best features. This item in Settings opens the Wi-Fi Networks screen, where you'll find three useful controls:
Wi-Fi On/Off. If you don't plan to use Wi-Fi, turning it off gets you a lot more life out of each battery charge. Tap anywhere on this On/Off slider to change its status.
Note
Turning Airplane mode on automatically turns off the Wi-Fi antenna—but you can turn Wi-Fi back on. That's handy when you're in one of those rare, amazing airplanes with Wi-Fi on board.
Choose a Network. Here, you'll find a list of all nearby Wi-Fi networks that the iPhone can "see," complete with a signal-strength indicator and a padlock icon if a password is required. An Other item lets you access Wi-Fi networks that are invisible and secret unless you know their names. See Chapter 6 for details on using Wi-Fi with the iPhone.
Ask to Join Networks. If this option is On, then whenever you attempt to get online (to check email or the Web, for example), the iPhone sniffs around to find a Wi-Fi network. If it finds one you haven't used before, the iPhone invites you, with a small dialog box, to hop onto it.
So why would you ever want to turn this feature off? To avoid getting bombarded with invitations to join Wi-Fi networks, which can happen in heavily populated areas, and to save battery power.
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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.