Android , a popular mobile operating system. This is all new mobile operating system and creator is Andy Rubin . About the origin of Android , please refer to here
Anyway , let's see android architecture and its development environment. Before development , we must get its SDK from the following URL - Android.com ,this is the official site of Android and you may find the SDK (development tools ) from here .Once you downloaded successfully , please refer to the guide of installing SDK
Fig 1 - start installing SDK
Fig 2 - Detect whether Android SDK is installed and install it
Fig 3 - install successfully
In general , Android is a software stack. It consists of two major parts , one is Linux Kernel , and the other is applications system. Linux kernel was written in C and the upper applications system was written in Java.
The following figure which comes from a blog - Android architecture The architecture of upper applications system consists of applications layer and applications framework. Applications layer is a set of applications . It includes some default applications, such as home , contacts , phone , browser, ... these applications have been developed and customized alternatively. Application framework is the core of whole applications. It's major target is constructing and building whole application system . This is a figure which shows Android architecture internals. and this APIs show android all APIs.
The following video that shows how to construct an easy android application.
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