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i OS

i OS. 陳雋恆 何品 蕙 何天與. Outline. iOS 的歷史與 應用 iOS 的結構 Xcode Objective-C Multitasking Theading. iOS 的歷史與應用. iOS 的前身 ： Phone OS 行動裝置的 OS OpenGL ES 3.0 以及 Darwin. iOS 結構圖. Xcode. 繼承自 NeXT 的 Project Builder 可編譯多種語言， 如 C 語言、 C++ 、 Objective-C 等等. Xcode. Object-C. 繼承自 C 語言 物件導向的程式語言.

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i OS

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  1. iOS 陳雋恆 何品蕙 何天與 1/11

  2. Outline • iOS的歷史與應用 • iOS的結構 • Xcode • Objective-C • Multitasking • Theading 2/11

  3. iOS的歷史與應用 • iOS的前身：Phone OS • 行動裝置的OS • OpenGL ES 3.0以及Darwin 3/11

  4. iOS結構圖 4/11

  5. Xcode • 繼承自NeXT的Project Builder • 可編譯多種語言， • 如C語言、C++、Objective-C等等 5/11

  6. Xcode 6/11

  7. Object-C • 繼承自C語言 • 物件導向的程式語言 7/11

  8. Multitasking 8/11

  9. Multitasking in iOS • Background APIs • Background audio, • Local notifications, • Bluetooth Accessory, • …etc. • Fast app switching • Task completion 9/11

  10. Treading • Thread是一種實現同時執行 • 多個code path的技術 • Application一開始只會以一個 • thread開始執行(即為main function) 10/11

  11. Conclusion • iOS算是為行動裝置特別開發的作業系統，不只在電量上的優化，也給予開發者一個良好的工作環境 11/11

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