IOS 软件开发浅谈 iPhone OS 系统概述? Cocoa Touch :用于构建图形化的事件驱动应用程序( UIKit ) ? Media :添加音频、视频、图形和动画的框架? Core Services :访问核心服务的框架(通讯录/定位/框架,数据库,文件传输) ? Core OS :访问系统内核的框架(网络协议/ 安全) iPhone SDK 简介? Xcode : IDE ? Instruments :监控内存利用率和性能指标? Dashcode :基于 Web 的独立应用程序?仿真器 Simulator :创建和测试应用程序? IB( Interface Buider ):快速图形化布局用户界面? Tools : Xcode , Interface Buider ? Frameworks : Foundation , UIkit ? Language : Objective-C ?#import <> int main( int argc, const char * argv[] ) { printf( "hello world\n" ); return 0; } ?#import <Foundation/> int main(int argc, char * argv[]) { NSLog(@"Hello Cocoa From Console"); return 0; } MVC 模型视图控制器? Model ? Manages the app data and state ? Not concerned with UI or presentation ? Often persists somewhere ? Same model should be reusable, unchanged in different interfaces ? View ? Present the Model to the user in an appropriate interface ? Allows user to manipulate data ? Does not store any data (except to cache state) ? Easily reusable & configurable to display different data ? Controller ? Intermediary between Model & View ? Updates the view when the model changes ? Updates the model when the user manipulates the view ? Typically where the app logic lives.
