Android Software Development Kit (SDK) and Virtual Device Manager : This tool is used to generate and handle Android Virtual Devices (AVD) and SDKs. Through the emulator in the AVD, you can specify the supported SDK version, storage in the SD card, screen resolution, and other abilities such as GPS and touch screen.
The Android Emulator : The AE is the implementation of the Android Virtual Machine, designed to run processes within a virtual device itself, which can be used on a development computer. The main use of this tool is in testing and debugging of Android applications.
Android Debug Bridge (ADB) : The ADB is a command-line debugging application doled out with the SDK. It enables developers to communicate with the device, and facilitates actions such as the installation and debugging of an application.
Android Asset Packaging Tool (AAPT) : The AAPT builds the ‘.apk’ distributable Android package file.
