How can I detect when an Android application is running in the emulator?

Question

I would like to have my code run slightly differently when running on the emulator than when running on a device. (For example, using 10.0.2.2 instead of a public URL to run against a development server automatically.) What is the best way to detect when an Android application is running in the emulator?

Answer 1

How about this solution (class implementation of SystemProperties is available here):

val isProbablyRunningOnEmulator: Boolean by lazy {     // Android SDK emulator     return@lazy ((Build.FINGERPRINT.startsWith("google/sdk_gphone_")             && Build.FINGERPRINT.endsWith(":user/release-keys")             && Build.MANUFACTURER == "Google" && Build.PRODUCT.startsWith("sdk_gphone_") && Build.BRAND == "google"             && Build.MODEL.startsWith("sdk_gphone_"))             //             || Build.FINGERPRINT.startsWith("generic")             || Build.FINGERPRINT.startsWith("unknown")             || Build.MODEL.contains("google_sdk")             || Build.MODEL.contains("Emulator")             || Build.MODEL.contains("Android SDK built for x86")             //bluestacks             || "QC_Reference_Phone" == Build.BOARD && !"Xiaomi".equals(         Build.MANUFACTURER,         ignoreCase = true     ) //bluestacks             || Build.MANUFACTURER.contains("Genymotion")             || Build.HOST.startsWith("Build") //MSI App Player             || Build.BRAND.startsWith("generic") && Build.DEVICE.startsWith("generic")             || Build.PRODUCT == "google_sdk"             // another Android SDK emulator check             || SystemProperties.getProp("ro.kernel.qemu") == "1") } 

Note that some emulators fake exact specs of real devices, so it might be impossible to detect it. I've added what I could, but I don't think there is a 100% way to detect if it's really an emulator or not.

Here a tiny snippet you can make in the APK to show various things about it, so you could add your own rules:

        textView.text = "FINGERPRINT:${Build.FINGERPRINT}\n" +                 "MODEL:${Build.MODEL}\n" +                 "MANUFACTURER:${Build.MANUFACTURER}\n" +                 "BRAND:${Build.BRAND}\n" +                 "DEVICE:${Build.DEVICE}\n" +                 "BOARD:${Build.BOARD}\n" +                 "HOST:${Build.HOST}\n" +                 "PRODUCT:${Build.PRODUCT}\n" 

Answer 2

One common one sems to be Build.FINGERPRINT.contains("generic")