The relationship between ADT and SDK in android, androidadtsdk

The relationship between ADT and SDK in android, androidadtsdk

ADT (Android Development Tools): currently, the Development tool used for Android Development is Eclipse. In the Eclipse compiling IDE environment, install ADT to upgrade or change the Development tool for Android Development, it is simply an upgrade and download tool for development tools in Eclipse. Adt is just an eclipse plug-in. You can set the sdk path
SDK (Software Development Kit): a collection of Development tools used by Software engineers to build application Software for a specific Software package, Software framework, hardware platform, operating system, etc. In Android, he provides developers with library files and other tools used for development. A collection of Development kits is a toolkit used in overall development. If you do not use Eclipse as your development tool, you do not need to download ADT. You only need to download the SDK for development. The SDK can be compiled by yourself. in linux, you can run the make command, which takes a long time and requires patience... Then we can import the compiled SDK into eclipse through ADT. On this basis, you can modify the source code package, such as modifying the source code in android system/app/phone.apk, and then calling the make command again to generate a new system. image file, which is an image file.
---------- The ROM contains two basic images, one of which is boot. image. This image mainly contains the objects in the kernel and file system/directory. I won't talk about the kernel. The/directory mainly contains the init and related configuration file system. image is the core of userpace in android, including/system/bin, system/lib, and something in system/app.

Correspondence between Android platform, SDK Tools version, and ADT version

Android SDK Tools version ADT
Android 2.2 R7 ADT-0.9.9
Android 2.3 R8 ADT-8.0.1
Android 3.0 preview R9 ADT-9.0.0
Android 3.0 R10 ADT-10.0.0
Android 3.1 R11 ADT-11.0.0

Android 3.2 R12 ADT-12.0.0

Android 4.0 R14 ADT-14.0.0

SDK platform version and API version

Android platform API level
Android 2.0.11 API6
Android 2.1-update1 API7
Android 2.2 API8
Android 2.3 API9
Android 2.3.3 API10
Android 3.0 API11
Android 3.1 API12

Android 3.2 API13

Android 4.0 API14

 

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