Android Developer ToolsDownload Android SDK. Android SDK (Software Development Kit) is a package that includes the tools and APIs necessary to develop applications that can run on Android devices (Google operating system for mobile phones). This SDK includes libraries, code debugger (debugger), an emulator to test applications, examples, etc. It can be integrated with development environments such as Eclipse (via the ADT plugin) or conNetBeans. You must download and install Eclipse, prior to installing the Android SDK and Eclipse plugin. You can check the following tutorial Android in Spanish.
To simplify installation of the tools mentioned in the previous paragraph, now Google offers a package called ADT Bundle, responsible for downloading and installing everything the user needs to start developing applications for Android: Eclipse (with the ADT plugin included ), Android SDK Tools, Android Platform-tools and the emulator.
Download Android SDK. The kit also has a complete documentation, useful for programmers new to the platform, in which various aspects are described, for example, how a graphical interface, access to the database (SQLite), implemented the communication with various components (such as camera, GPS, accelerometer, etc.), and various aspects more. The applications are programmed in Java and run on a virtual machine called Dalvik.
Download Android SDK. Android SDK Tools (Revision 24.1.2) is the last (updated March 2015) version, which is available for Windows, Mac and Linux. It can be downloaded for free. In case you choose to go all the toolkit, you must choose the second link, and you have to keep in mind that the file is around 450 MB. The link leads to the official website, where you have to accept the conditions and select the type of system (32-64 bits) if the Windows version is intended.