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

Answer 1

Another option is to check if you are in debug mode or production mode:

if (BuildConfig.DEBUG) { Log.i(TAG, "I am in debug mode"); }

simple and reliable.

Not totally the answer of the question but in most cases you may want to distinguish between debugging/test sessions and life sessions of your user base.

In my case I set google analytics to dryRun() when in debug mode so this approach works totally fine for me.

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For more advanced users there is another option. gradle build variants:

in your app's gradle file add a new variant:

buildTypes {
    release {
        // some already existing commands
    }
    debug {
        // some already existing commands
    }
    // the following is new
    test {
    }
}

In your code check the build type:

if ("test".equals(BuildConfig.BUILD_TYPE)) { Log.i(TAG, "I am in Test build type"); }
 else if ("debug".equals(BuildConfig.BUILD_TYPE)) { Log.i(TAG, "I am in Debug build type"); }

Now you have the opportunity to build 3 different types of your app.