If your app needs to react to various charge level, test it easily.
Use your laptop webcam as the video source or record screencasts of your virtual device.
Emulate devices with slow internal storage.
Forward gyroscope or multi-touch events from any Android device connected to your computer.
Use the GPS widget to easily develop and test your location-based apps
Test Wi-Fi, 4G, 3G, Edge, subway interruptions.
Set up call or sms interruptions and see if your app reacts correctly
Display your app on your computer screen exactly at the real size
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The Identifiers widget shows Device ID and Android ID numbers. You can view and edit these values at any time, without having to reboot your virtual device. You can change your virtual device’s Android ID/IMEI/MEID values on the fly. Whether to test your installation tracking system or to categorize your devices, this is a nifty and practical tool to have in your toolbox.
An Open GApps widget has been added and allows you to install Google Play Services in one click. Therefore, if your app is relying on Google Play Services you can test it and be sure it reacts as wanted.
Customize a virtual device and clone it to serve as your baseline for other iterations and tests. Or if you wanted, you could use the factory reset tool to reset your customized device to the way it was when you first loaded it.