For Detox, what the command-line sees is what matters.In Android Studio, click Tools> SDK Manager. By clicking Help > Check for Update (Android Studio > Check for Updates on macOS).Note: Do not be confused by the Java version potentially used by your browsers, etc. For Android Emulator versions prior to 25.3.0, see the Android SDK Tools release notes.Access the CONSULT Updates menu item to obtain these updates. To ensure you have the latest version, check the SDK Manager for updates. Versions of the emulator prior to 25.3.0 were distributed as part of the Android SDK Tools. Android Emulator is included with Android Studio.
![]() Launch Emulator In The Newer Version Of Android Studio On How To Install ThemIf ANDROID_HOME isn't set, either set it yourself or run the following commands after cd-ing into the home folder. Locate your 'Android home' folder - typically set in the ANDROID_HOME environment variable, or in it's successor - ANDROID_SDK_ROOT. An emulator with Google API's installed (right):Here's how to install them using the command line:While it's possible to do this using Android Studio, we'll focus on the command line, as it also good for headless CI machines. They can be installed alongside regular emulators.Here's a visual comparison between the two - an SDK 28 (Android 9) AOSP emulator (left) vs. While possibly lacking some of the extended Google services, and a bit less fancy overall, we strongly recommend to strictly use this flavor of emulators for running automation/Detox tests. Be it the preinstalled Google play-services - which tend to take up a lot of CPU, or even Google's gboard Keyboard - which is full-featured but overly bloated: These encourage flakiness in tests, which we are desperate to avoid in automation.Fortunately, the Android team at Google offers a pretty decent alternative: AOSP emulators (Android Open-Source Project).Any name can work here, even Pixel_API_28 - but you might have to delete an existing non-AOSP emulator, first. Pixel_API_28_AOSP is just a suggestion for a name. SDK 29)$ANDROID_HOME/tools/bin/avdmanager create avd -n Pixel_API_28_AOSP -d pixel -package "system-images android-28 default x86_64 " ![]() Wait for it to go stable.When running, go to settings (3 dots in the sidebar) > Snapshots > Settings tab. Disable auto-save, so that future, test-tainted snapshots won't be saved.Setting up a quick-boot snapshot from the EmulatorStart by launching a freshly baked emulator. Launch it, and, when stable, terminate - a snapshot is saved as a result. Enable auto-save for an installed / running emulator. The concept becomes more prominent in environments capable of parallel-executing tests in multiple, concurrently running emulators (as when Detox is run with multiple Jest workers).This is something that we actually recommend applying in the emulator itself rather than using command-line, but we'll include both options.In any case, the general principle we're going to instruct is as follows: Google chrome virus removing for mac osxSnapshots in Google devs page for full details on snapshots.Setting up a quick-boot snapshot from command-lineThis is a bit more difficult, but is also applicable even for UI-less machines. Allow it to restart yet again: it will immediately boot into the state saved as a snapshot earlier.You can also try these as alternative sources for this: The emulator should restart and save a snapshot.Do this again after the emulator is back up, but set No in the auto-save option. This should prompt for a restart - choose Yes.
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