After collecting data on sudden emulator slowdown issues, we have determined that the problem may have to do with some interaction between older Intel OpenGL drivers and Windows updates. This release is compatible with API level It also includes a number of performance improvements and bug fixes. Note: HAXM v6. Version This release contains a variety of performance improvements, new features, and bug fixes. Content and code samples on this page are subject to the licenses described in the Content License.
Android Studio. Download What's new User guide Preview. Features overview Release notes. Android Developers. Android Emulator is included with Android Studio. Versions of the emulator prior to Added support for virtio-vsock in userspace. Future system images will use virtio-console for logcat and kernel messages. Speed up Vulkan rendering. Added support for snapshot debugging on test failure.
Added snapshot support for the 'asg' type graphics transports. KVMclock enabled by default on newer system images. Added support for a heart rate sensor to Wear emulators. Removed libportability Vulkan backend. Added support for more features in modem simulator.
Foldables support with virtual hinge sensor and 3D view Added support for hinge sensors for foldable devices. Hinge sensor is now enabled by default. Due to how emulator rendering works, we now process virtio-gpu virtqueue in the vcpu thread because rendering is offloaded to other threads anyway.
In a future system image the emulator will be able to run all graphics with a virtio-gpu based stack. The emulator now supports audio streaming in containers over WebRTC. This can improve accuracy of time measurements from the guest. We now track which extended control pane was selected by the user in metrics. Emulator now uses LZ4 to decompress guest kernels, making it compatible with the modern kernel pipeline. Fixes: embedded emulator Clipboard should now work.
Fixed issue where uppercase characters were delivered as lower case characters in the emulator. Fixed loading console token from a unicode path in windows. Fixed a snapshot corruption issue when sending snapshot commands through gRPC, as well as when pressing the snapshot save button in Android Studio embedded emulator. General fixes We've seen compatibility issues running the Windows emulator with Riot Vanguard active.
The Windows emulator now detects Vanguard anti-cheat and pops up a warning message if Vanguard is detected. We now use WSAEventSelect instead of select for establishing non-blocking connections to loopback servers. Fixed bouncing icon on launch for MacOs. If hw. Fixed an issue where if the emulator window was minimized while the extended controls window was open but not active, the extended controls window would keep showing up when resizing the emulator window.
We will completely remove the behavior the case with active extended controls window in a future update. Fixed a flaky bug with Wi-Fi not connected when the emulator starts. Fixed hang-on-exit when emulator issues shell commands with long or indefinite timeouts. Updated pc-bios with fixes to better support large images passed to -initrd ; previous BIOS used a very inefficient method.
Fixed crash during termination when -wifi-server-port option is used. The emulator now prints a warning if unsupported options are passed to -prop Only qemu. When building the emulator on Windows, there should be less chance of seeing flaky failures to write to files.
For more information, see the Windows build instructions. Disabled Zoom button for foldable AVDs, which was causing issues. Emulator now correctly reports boot time coming from a device reboot. Linux: In the case where there are insufficient KVM permissions, the emulator now prints debugging instructions more promptly. Fixed issue where the emulator could not boot recent system images with no acceleration. Fixed memory corruption or crash on start from a boot-completed detector.
Fixed memory leak during long screen recording sessions. Emulator icons updated to reflect Studio 4. Added better support for detecting remote sessions on Windows. Fixes: graphics and video decode Fixed an issue where latest Asphalt 9 game rendered with a black screen.
Removed spam about flushing mapped buffer with NULL. Fixed a race condition when tearing down Vulkan state when a guest Vulkan app exited. This will be more reliable versus reading from the filesystem. Fixed an issue in Vulkan where if running with a Vulkan 1. Fixed a memory leak in Vulkan renderer. We now crash the emulator if the basic framebuffer blit shader fails to compile, in order to keep track of the phenomenon. This fixed an issue around memory corruption when translating and constant-folding OpenGL ES shaders that used non-square matrices.
The shader translator is now a separate shared library, libshadertranslator. Fixed an issue on Vulkan initialization on some GPU drivers, where certain 1. Vulkan: We've reverted back to using the prebuilt loader as favoring the system Vulkan loader caused issues in some setups; will figure out a better solution. Fixed issue when using Vulkan external memory where it could have been imported mismatching memory type indices on the host. More debug info has been added to WGL initialization on Windows in order to trace failures.
When hw. Fixed an issue with Youtube videos flickering or not showing up on snapshot load. Switched back to software decode for libvpx for now as we've seen issues with CUDA hardware decode of libvpx. Known issues Resizing freeform windows is currently broken due to issues transferring focus to the Window Manager. Support for ARM binaries on Android 9 and 11 system images 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.
Consider building for ARM64 when targeting Android The emulator now includes a headless build for bit x86 guests qemu-system-i This feature enables x86 bit images for API levels 26 and lower to run with the headless build. Android Studio uses the kernel to select emulation engines.
You can now run the emulator with previous binaries that use QEMU1 if the QEMU1 executables emulator[64]-[x86 arm etc] are placed in the emulator directory. Windows: Fixed an issue that could sometimes cause the emulator to fail to start with a "vCPU shutdown request" message. Fixed an issue with an unnecessary pipeline barrier in emulated compressed textures in Vulkan.
Fixed an error that occurred with http proxy requests when chunked transfer encoding was used. For more information, see the commit details. Multiple virtual hardware displays will be included in a future emulator system image update. Added a new command line option: -delay-adb. This option suppresses processing of ADB packets until the guest has completed booting off a cold boot. This option helps resolve issues that could occur if you use the emulator in a CI environment that reboots the emulator and uses DDMS at the same time.
Fixed an error that occurred when snapshots are loaded where glIsRenderbuffer would return the incorrect value. Fixed some issues with stale state when the Android guest reboots. Known issues The Snapshots UI is disabled for Automotive system images because snapshots aren't currently supported for these system images.
The following sections describe the Project Marble improvements that are included with this update: Improvements for host audio behavior Starting with version 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: adb emu avd hostmicon adb emu avd hostmicoff Improvements for headless emulator builds Starting with version The system-dependent shared libraries that are not packaged with the emulator has been reduced to the following list: Linux-vdso.
To address issues with some Linux installs containing incompatible versions of some Qt dependent libraries, we now package libfreetype , libsoftokn , libsqlite3 , and libxkbcommon with the emulator.
In battery mode, background CPU usage is greatly reduced. Furthermore, this automatically provides the CPU usage mitigation described for hotword detection from the Tracking for RAM usage distinguishes between graphics usage and total resident memory. General Project Marble improvements This update also includes the following general improvements that are part of the Project Marble initiative: You can now immediately pause all vCPUs on the emulator via the following console commands: adb emu avd pause adb emu avd resume Greatly reduced overhead of OpenGL drawing.
This improvement reduces CPU usage while the emulator is playing animations. Restored support for mainline QEMU's e virtual network device. You can use this device to set up the emulator in a bridged network environment. In a bridged network environment, the emulator is shown on the host network and the host network is shown on the emulator. QEMU 2. Upgraded ffmpeg version to 3. Logcat buffer size increased to 2 MB to address issues with flaky unexpected EOF when running logcat with the emulator.
This change addresses crashes and incompatibility issues associated with running the emulator in different locales. This change helps fix issues where images and assets do not display because of improper format for readback.
Added more diagnostic info to the Bugreport UI. In addition, you can access bug reports from the console using the following commands: telnet localhost avd bugreport On Android Q system images, the emulator increases its minimum RAM size to 2 GB.
Added more logging and printing whenever OpenGL or the hypervisor fails to initialize. If the emulator cannot start a concurrent -read-only instance of an AVD, the emulator now attempts to relaunch the -read-only AVD 3 more times over 3 seconds.
We do not recommend that you attempt to use an Android emulator: If you have an Android device, use your Android device instead. You can also use Mobile Preview to do initial debugging of an Android app. Android Emulators Require a Separate GPU Android emulators are heavily hardware-dependent, and this includes the hardware being emulated as well as the hardware on which the emulator runs.
Click Advanced Settings. Take a look at the displayed properties of your graphics card. If you do not have a suitable GPU, it is probably not worth your time to create and attempt to run an Android emulator. Find another development system that does have a suitable GPU. We do not recommend Intel GPUs.
Creating an Android Emulator Is Optional If you decide to create your own Android emulator, consider creating an emulator for each Android device you want to support. To simulate the emulator following the route you saved, select the route from the list of Saved routes and click Play route near the bottom right of the Extended controls window.
To stop the simulation, click Stop route. To continuously simulate the emulator following the specified route, enable the switch next to Repeat playback. To change how quickly the emulator follows the specified route, select an option from the Playback speed dropdown. The speed defaults to the Delay value Speed 1X. You can increase the speed by double Speed 2X , triple Speed 3X , and so on.
The emulator allows you to deploy your app to multiple displays, which support customizable dimensions and can help you test apps that support multi- window and multi- display. While a virtual device is running, you can add up to two additional displays as follows:.
The emulator lets you simulate various network conditions. You can approximate the network speed for different network protocols, or you can specify Full , which transfers data as quickly as your computer allows. Specifying a network protocol is always slower than Full. You can also specify the voice and data network status, such as roaming.
The defaults are set in the AVD. You can simulate the battery properties of a device to see how your app performs under different conditions. To select a Charge level , use the slider control.
If the AVD has the directional pad enabled in the hardware profile, you can use the directional pad controls with the emulator. However, not all devices can support the directional pad; for example, an Android watch. The buttons simulate the following actions:. This control can simulate 10 different fingerprint scans.
You can use it to test fingerprint integration in your app. This feature is disabled for Android 5. This control lets you test your app against changes in device position, orientation, or both.
For example, you can simulate gestures such as tilt and rotation. The accelerometer doesn't track the absolute position of the device: it just detects when a change is occurring. The control simulates the way accelerometer and magnetometer sensors would respond when you move or rotate a real device. You must enable the accelerometer sensor in your AVD to use this control. These values include gravity. For example, if the device is suspended in outer space, it would experience zero acceleration all of x, y, and z will be 0.
When the device is on Earth and laying screen-up on top of a table, the acceleration is 0, 0, and 9. To rotate the device around the x, y, and z axes, select Rotate and do one of the following:.
See Computing the device's orientation for more information about how yaw, pitch, and roll are calculated. To move the device horizontally x or vertically y , select Move and do one of the following:. As you adjust the device, the Resulting values fields change accordingly. These are the values that an app can access. For more information about these sensors, see Sensors overview , Motion sensors , and Position sensors. The emulator can simulate various position and environment sensors.
It lets you adjust the following sensors so you can test them with your app:. For more information about these sensors, see Sensors overview , Position sensors , and Environment sensors. For more information, see Using the emulator with a proxy. This is equivalant to the -gpu command line option. Autodetect based on host : Let the emulator choose hardware or software graphics acceleration based on your computer setup.
SwiftShader : Use SwiftShader to render graphics in software. This option is typically the fastest. However, some drivers have issues with rendering OpenGL graphics, so it might not be a reliable option. For the shortcuts to work, the Send keyboard shortcuts option in the General settings pane must be set to Emulator controls default. To file a bug against the emulator, click Send feedback.
For more information, see how to report emulator bugs. Compare the latest available emulator version with your version to determine if you have the latest software installed. You can disable Wi-Fi in the emulator by running the emulator with the command-line parameter -feature -Wifi. Content and code samples on this page are subject to the licenses described in the Content License. Android Studio. Download What's new User guide Preview.
Meet Android Studio. Manage your project. Write your app. Build and run your app. Run apps on the emulator. Run apps on a hardware device. Configure your build. Optimize your build speed. Debug your app. Test your app. Profile your app. Android Studio profilers. Profile CPU activity. Benchmark your app. Measure performance. Publish your app. Command line tools. Android Developers. Watch the following video for an overview of some emulator features.
An Android emulator skin is a collection of files that define the visual and control elements of an emulator display. If the skin definitions available in the AVD settings don't meet your requirements, you can create your own custom skin definition, and then apply it to your AVD. A hardware. Add the bitmap files of the device images in the same directory. Specify additional hardware-specific device configurations in a hardware. Archive the files in the skin folder and select the archive file as a custom skin.
For more detailed information about creating emulator skins, see the Android Emulator Skin File Specification in the tools source code. Content and code samples on this page are subject to the licenses described in the Content License.
Android Studio. Download What's new User guide Preview. Meet Android Studio. Manage your project. Write your app. Build and run your app. Run apps on the emulator. Run apps on a hardware device. Configure your build. Optimize your build speed. Debug your app. Test your app. Profile your app. Android Studio profilers. Profile CPU activity. Benchmark your app. Measure performance. Publish your app. Command line tools. Android Developers. Click AVD Manager in the toolbar. Hardware profile The hardware profile defines the characteristics of a device as shipped from the factory.
Storage area The AVD has a dedicated storage area on your development machine. Skin An emulator skin specifies the appearance of a device. The Select Hardware page appears. Select a hardware profile, and then click Next. The System Image page appears. Select the system image for a particular API level, and then click Next.
The Verify Configuration page appears. Change AVD properties as needed, and then click Finish. Click Show Advanced Settings to show more settings, such as the skin. Make your changes, and then click Finish.
Click Finish. To create a hardware profile starting with a copy: In the Select Hardware page, select a hardware profile and click Clone Device. Or right-click a hardware profile and select Clone. Or click Menu and select Delete.
To show the associated AVD. Or click Menu and select Show on Disk.
0コメント