4.1 About Android Virtual Devices

AVDs are essentially emulators that allow Android applications to be tested without the necessity to install the application on a physical Android based device. An AVD may be configured to emulate a variety of hardware features including options such as screen size, memory capacity and the presence or otherwise of features such as a camera, GPS navigation support or an accelerometer. As part of the standard Android Studio installation, a number of emulator templates are installed allowing AVDs to be configured for a range of different devices. Custom configurations may be created to match any physical Android device by specifying properties such as processor type, memory capacity and the size and pixel density of the screen.

An AVD session can appear either as separate a window or embedded within the Android Studio window. Figure 4-1, for example, shows an AVD session configured to emulate the Google Pixel 3 model.

New AVDs are created and managed...