Android Development tutorial开发教程.pptx

Android Development TutorialContentsWhat’s AndroidAndroid architectureAndroid software development‘Hello World’ on AndroidMore…What’s AndroidAndroid PhonesMobile DevicesIt’s obvious that mobile device may take the place of PC in futureOS plays a vital partOHA and AndroidOHA(Open Handset Alliance) is a group of 71 technology and mobile companies, including Google, Intel, Dell, HTC and China Mobile…OHA’s aim：accelerate innovation in mobile phonesoffer consumers a richer, less expensive, and better mobile experienceOHA developed Android?, the first complete, open, and free mobile platformOHA was initially called up by Google, and Google is the ‘captain’What’s AndroidGenerally, Android is a software stack for mobile devices that includes an operating system, middleware and key applications Android is based on JAVA and all its applications are developed in JAVAThe JAVA VM, known as Dalvik, is highly customized and optimized for mobile devicesAndroid SDK offers rich tools for android application development and many useful APIs。The core of AndroidAndroid Features #1Application framework enabling reuse and replacement of components Optimized Java virtual machine: DalvikOptimized Graphics Processing, supporting 2D and 3D graphics(OpenGL ES 1.0 )Integrated open source web browser: WebKitSQLite for structured data storageAndroid Features #2Multimedia capability, supporting varieties of audio, video and still image formatsGSM TelephonyBluetooth, EDGE, 3G and Wi-Fi supportCamera, GPS, compass, accelerometer and other sensors support Rich development environment, including an emulator, debugging tools, memory probe tools, log tools and powerful eclipse pluginsHardware dependentAndroid architectureLinux KernelNote that Android based on a Linux kernel not a Linux OSSupplies Security, Memory management, Process management, Network stack and Driver model Acts as an abstraction layer between the hardware and the rest of the software stackLibrariesRun in system backgroundUsing C/C++