It gives you the ability to test your Android projects across more devices than you could ever realistically hope to get your hands on. However, the emulator does have one massive flaw, which becomes glaringly obvious the first time you launch it.
Better get comfortable, because the emulator takes a long time to load. A seriously long time. Note, since Android Studio is now the recommended development environment for Android, all of these tips are geared towards Android Studio, although some of them will be applicable to Eclipse users, too. The Android team have recently made some huge improvements to Android Studio, including the addition of Instant Run.
Instant Run promises to make sitting around and waiting for the emulator to re-install your app a thing of the past. However, the way Instant Run applies your updates will vary depending on the nature of those updates; and some updates are easier to apply than others:. To get the best results out of Instant Run, you might want to try these additional tips and tricks:. Instant Run is enabled by default for projects that use version 2.
To install it manually:. This can make the emulator run much faster. My command looks like this:. Next, launch the emulator you created myemulator with the -gpu on flag, for example:. The AVD will launch with graphics acceleration enabled. Spend some time interacting with the AVD, and you should notice a speed improvement. You can use these extensions to run the Android emulator inside an accelerated virtual machine, which can improve the execution speed.
By default, the emulator displays a boot animation as it starts up. You can shave precious seconds off the time it takes the emulator to load by disabling the boot animation. Then, launch the AVD you want to use, complete with the -no-boot-anim flag, for example:.
In this article, we looked at 6 tricks for making Android emulator frustration a thing of the past. The best bit is, you can try many of these techniques alongside one another. For example, you might want to disable the boot animation to speed up the time it takes the emulator to boot, while also using an AVD that runs an x86 system image, so you can take advantage of HAXM and virtual machine acceleration. Jessica Thornsby is a technical writer based in Sheffield.
Read TensorFlow Lite Android image classification for an explanation of the source code. This example app uses image classification to continuously classify whatever it sees from the device's rear-facing camera. The application can run either on device or emulator. The demo app classifies frames in real-time, displaying the top most probable classifications.
To get started quickly writing your own Android code, we recommend using our Android image classification example as a starting point.
How to enable GPU acceleration in Android emulator
The following sections contain some useful information for working with TensorFlow Lite on Android. It provides high-level APIs that help transform raw input data into the form required by the model, and interpret the model's output, reducing the amount of boilerplate code required.
It supports common data formats for inputs and outputs, including images and arrays. It also provides pre- and post-processing units that perform tasks such as image resizing and cropping. You can specify this in your build.
You can reduce the size of your application's binary by only including the ABIs you need to support. This can be achieved with the following Gradle configuration, which specifically includes only armeabi-v7a and armv8awhich should cover most modern Android devices.
In some cases, you might wish to use a local build of TensorFlow Lite. For example, you may be building a custom binary that includes operations selected from TensorFlowor you may wish to make local changes to TensorFlow Lite. Bazel is the primary build system for TensorFlow. Run the. The script will attempt to configure settings using the following environment variables:.
If these variables aren't set, they must be provided interactively in the script prompt. Successful configuration should yield entries similar to the following in the. Note that this builds a "fat" AAR with several different architectures; if you don't need all of them, use the subset appropriate for your deployment environment.The Settings app on Android includes a screen called Developer options that lets you configure system behaviors that help you profile and debug your app performance.
For example, you can enable debugging over USB, capture a bug report, enable visual feedback for taps, flash window surfaces when they update, use the GPU for 2D graphics rendering, and more. On Android 4. To enable developer options, tap the Build Number option 7 times.
You can find this option in one of the following locations, depending on your Android version:. At the top of the Developer options screen, you can toggle the options on and off figure 1. You probably want to keep this on. When off, most options are disabled except those that don't require communication between the device and your development computer.
On Android 8. After you select one or more of the available tiles figure 2open the Quick Settings panel and tap the pencil to enter edit mode. Then, drag the developer tiles from the tiles pane onto the Quick settings panel, and tap the pencil again to exit edit mode. Debugging options provide ways to configure on-device debugging, and to establish communication between the device and your development computer.
The Wait for Debugger option is unavailable until you use Select debug app to select the app to debug.
If you enable Wait for Debuggerthe selected app waits for the debugger to attach before it executes. Addiitonally, to fine-tune the audio playback on the device, tap and set the following options:. Wireless display certification : Enables advanced configuration controls and settings for Wireless Display certification to the specifications set forth in the Wi-Fi Alliance Wi-Fi Display Specification.
The certification applies to Android 4. For more information about logs, see Write and view logs with Logcat. Aggressive Wi-Fi to cellular handover: When the signal is low, makes Wi-Fi more efficient in handing over the data connection to a cellular network. Input Figure 6.
Pointer location. Enable Show taps to display taps when you touch the screen. A circle appears under your finger or stylus and follows you as you move around the screen. A tap works like a pointer when you Record a video on your device.
Waiting eagerly for the answer. Any help is appreciated. By using the option, you allow your emulated device to use the physical GPU of your computer instead of emulating it in software.
Learn more. Ask Question. Asked 4 years, 10 months ago. Active 4 years, 10 months ago. Viewed 5k times. Tilak Maddy Tilak Maddy 2, 2 2 gold badges 18 18 silver badges 38 38 bronze badges. Have you tried googling? Active Oldest Votes. As a result, your virtual device will run more smoothly.
Timo Timo Please can you explain what is a physical GPU? This is simply the graphics card you have in your computer. John Kemnetz John Kemnetz 2, 18 18 silver badges 22 22 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password.
Post as a guest Name. Email Required, but never shown. The Overflow Blog. Featured on Meta. Feedback on Q2 Community Roadmap. Technical site integration observational experiment live on Stack Overflow.
Dark Mode Beta - help us root out low-contrast and un-converted bits. Question Close Updates: Phase 1.To ensure you have the latest version, check the SDK Manager for updates. For Android Emulator versions prior to For details of bugs fixed in each release, see the Android Studio release updates blog. If you were previously unable to use the Android Emulator because your app depended on ARM binaries, you can now use the Android 9 x86 system image or any Android 11 system image to run your app — it is no longer necessary to download a specific system image to run ARM binaries.
These Android 9 and Android 11 system images support ARM by default and provide dramatically improved performance when compared to those with full ARM emulation. If you are using Windows bit, you cannot upgrade to version This update continues our work on the Project Marble initiative that was announced at the Android Developer Summit in November The following sections describe the Project Marble improvements that are included with this update:.
Starting with version This option is automatically disabled whenever the emulator is restarted. If you are using the command line, you can also enable host audio using the -allow-host-audio option, and you can use the following ADB commands to turn host audio data on or off, respectively:.
You can use headless builds to help you set up the emulator for Docker and continuous integration CI workflows. On Linux, headless builds no longer include the pulseaudio or libX11 libraries. The system-dependent shared libraries that are not packaged with the emulator has been reduced to the following list:.
To address CPU usage, the emulator now runs the following ADB commands on a cold boot after it receives a boot complete signal:. This update also includes the following general improvements that are part of the Project Marble initiative:. This update also includes the following general fixes that are part of the Project Marble initiative:. The emulator now includes hardware profiles for foldable devices.
To use these new hardware profiles, you must be using Android Studio 3.
When you run the emulator using one of these hardware profiles, you can fold and unfold the device using the fold and unfold actions in the emulator toolbar, console commandsor the following keyboard shortcuts:. The emulator now includes AR macros that can help you test common AR actions.
For example, you can use a macro to reset all the device's sensors to their default state. For more information, see Test common AR actions with macros. This support is still experimental and is mainly for developers who work on system images, drivers, and game engines.
Many extensions are still missing. You can experiment with these APIs by setting the following environment variables:. HAXM can sometimes fail to map Vulkan coherent memory to the guest and shuts down the emulator. This is addressed in an upcoming HAXM update. Our CI and remote desktop users have the following long-standing issues:. To address this, when running on a Linux machine, the emulator now serves a gRPC service.
Once the service is started, gRPC commands can then be issued from clients. The current set of commands allows both sending input events and receiving screenshots. These commands help address the following issues:. For a complete list of the commands that are available, see this protobuf. The emulator has been difficult to set up with Docker and other continuous integration CI workflows due to the implicit expectations of the system being able to support Qt along with its shared library dependencies among other issues.
As a first step to address this, we've introduced a variant of the emulator launcher with QEMU executables that does not depend on Qt. On Linux, there is still a link to libX11but we hope to remove that soon as well. To use the headless emulator, run the emulator from the command line as usual, but replace the emulator binary invocation with emulator-headless.
That way, it doesn't have to run the boot process which is slow, because it's emulated every time you start the emulator. Put another way, when a program inside the emulator uses OpenGL for graphics operations, the work goes out to your real GPU, and the result goes back into the emulator, instead of emulating a GPU which is very slow.
The Snapshot option allows you to use a feature that's similar to the Hibernate function in Windows. It saves the contents of the emulator's memory to disk when you close the emulator, so that when you open it, it doesn't have to boot the OS, but instead it can load the memory contents from the disk and resume from where you left off.
This allows you to start the emulator faster. This speeds up graphic-intensive processes. Details and requirements can be found on developer. You should note that Snapshots and graphics acceleration are mutually exclusive, so you can't use both.
Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Ask Question. Asked 6 years, 8 months ago. Active 5 years, 10 months ago. Viewed 59k times. Active Oldest Votes. You can't have both options turned on at once.
Dan Hulme Dan Hulme This depends on whether you want a faster boot or better runtime performance for the emulator. Snapshots allow you to boot almost instantly but Host GPU speeds up the emulation itself. Micah-psIloveyou If you have a follow-up question, the best way to get good answers is to post it as a new question.
Why don't my "Create..." option of Android Studio have "Use Host GPU"?
Nobody will see it buried in the comments. I keep the GPU turned on. To speedup the startup time anyway I read that it is good to have a smaller sd-card image in use. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name.I 'm programming with Android and Eclipse but I can not run android emulator with Intel technologyI bring you information :.
When I run the Android EmulatorI have already installed the Android Manager according iso x86 android api adequate. I always have the same screen Android emulator occurs at a given time changes from black to white and freezes well. Never I access the Android system. Please if someone kind enough to help me or direct me to reach a solution. Does the emulator launch and work OK? It could be that your specific graphics chipset doesn't support Host GPU acceleration in the emulator.
Let us know what happens if you don't use the Host GPU option.
I think we're talking about two different things here. As you can see, Graphics Acceleration is an experimental feature of the Android SDK, and doesn't work with some types of applications or in conjunction with some other features like snapshots.
Good luck! Please follow if you would be so kind helping me. All you have told me I've already done properly. My question isand chances are you do not know help me. It's like I can know if my GPU acceleration in order to apply the android emulator. Is there any command in windows console application or Intel application that it can testas when testing my Intel microprocessor. I guess that's what I want for what you so kindly told me already knew.
Although we sincerely appreciate your attention. I think I understand what you're asking, but I can't find anything in the Android documentation to determine if GPU Host acceleration will work other than "try it, and see if it works. Too badlately programming and hardware is only for the rich and it is becoming less accessible than proprietary code or tools are designed to sound economies.