Emulator 28.0.20 stable 发布了，此版本更新如下：
Fixed freeze on snapshot load on Windows with certain models of Intel GPUs.
Fixed unauthorized ADB device state when using a non-standard ANDROID_SDK_HOME location.
Fixed crash when booting system images with CPU acceleration disabled on Windows.
Fixed pixelated emulator display. Downsampling should now be working.
Fixed an issue in macOS 10.14+ where the virtual scene camera mouselook control could become too sensitive due to an interaction with new accessibility security settings.
Fixed an error in timezone calculation that could result sporadically incorrect setting of the emulator clock.
Fixed rendering errors in various cocos2d and Unreal engine apps.
Added support in the emulator for Wi-Fi peer-to-peer. Two emulators can now talk to each other directly via Wi-Fi if using the latest Pie Play Store image. To use, start two AVDs with the same -wifi-server-port and -wifi-client-port arguments:
emulator @<server-avd-name> -wifi-server-port 9999
emulator @<client-avd-name> -wifi-client-port 9999
Added support for more webcams on Windows by taking any incompatible frame sizes and dynamically resizing them to fit the camera setting in the Android guest.
