Android Studio Emulator on Windows
To prepare to run and test your Flutter app on the Android emulator, follow the following steps.
Go to Tools > Device Manager is a configuration that defines the characteristics of an Android device that you want to simulate in the Android Emulator)
Or you can click on the icon as shown on the image below to open AVD Manager.
Select the option Create Virtual Device…
Select a device type and its configurations and click Next.
After that, select the System image.
Next, add a name to your device and select the Hardware - GLES 2.0 for the Emulated Performance.
Finish the creating of your virtual device.