iOS ... Is the operating system on the iPad, iPhone or iPod Touch.
To close an app ... Go to the home screen first by tapping the home button. Double tap the home button and the recents tray will appear with all of your recent apps displayed at the bottom. Tap and hold down on any app icon until it begins to wiggle. Tap the minus sign in the upper left corner of the app that you want to close. Tap the home button or anywhere above the task bar.
The camera app (and most apps in fact) do not stay running all the time draining your battery. When you press the home button to exit an app, that app is frozen in memory, ready to be instantly re-activated when you next return to it. Unless an app becomes blocked, you do not have to manually quit apps in iOS. The phones operating system will automatically quit apps as necessary if, for example, it needs to free up some memory.
Read this: http://speirs.org/blog/2012/1/2/misconceptions-about-ios-multitasking.html for a more technical description of how multitasking works in iOS and dispelling some of the commonly held myths still repeated on these forums years after iOS first had multitasking (looking at you Demo! ;-))
If you are really stalking me - If you take note, I changed the wording in my post to "close" instead of "quit". And I purposely avoided the running battery thing. Of course the battery is "running" if the device is unplugged so I ignored that.
And really ..... what do you care if users want to close apps on their devices ... I mean really? I close apps in my "recents tray" all the time. Do I lose status in the Apple world if I choose to close apps?
Geez, take a chill pill!! Guess you don't know the meaning of exclamation marks and ;-) at the end of a post, huh?
Posting in two threads as each other is considered "stalking" is it? Don't flatter yourself...
I care about giving people correct information - that's why we're on these user-to-user help forums, isn't it? Many people think they have to close apps on their iOS devices. If they still want to do that after learning that it is (mostly) unnecessary, then that's fine. Explaining how multitasking works in iOS using the correct terminology, avoids confusion and gives people the knowledge to decide whether they really do need to close apps, and the effect it has, rather than just letting them think they need to do it unnecessarily.
You can choose to do what you want (as I can), but it is better to make choices based on actual facts rather than misconceptions and misinformation.