Overview of IOS technology (1)

My head is not good. I can't remember it after reading it. I am too tired to write on paper. I picked some things specially to deepen my impression...

It is also convenient for other friends who are too lazy to read large documents. If not, please correct them.

The following comes from: http://www.apple.com.cn/developer/iphone/library/documentation/iPhone/Conceptual/iOs_TechOverview/Introduction/Introduction.html

No category currently, Which is messy

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Layer in iOS, saying yesCodeIt is better to call the cocoa touch layer whenever possible.

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Cocoa touch Layer

Some advanced features: multi-task (what is hanging in the background), data protection (encrypted file), push notification (small 1 in the upper right corner), local notification (you haven't played fishing talents for several days) gesture Recognition (enlarging image web pages) and file sharing (copying things from a computer to a device does not support sharing multiple applications on the same device. This is quite evil) point-to-point (Playing Games), Standard System View Controller (General dialog box or something), External Device Support (something you can't afford)

 

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Cocoa touch layer frameworks

PS: IOS framework concept: Contains dynamic links (DLL ?) And a folder of resources (header files, images, and help)

 

Address book UI framework: Contacts

Event kit UI: Calendar alerts for alarms or something

Game kit: point-to-point, in-game voice

IAD: Advertisement

Map kit: Map-related

Message UI: Email

Uikit: this is the old key. Multiple copy points:

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