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Bad PlatformView performance on Android #53532

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Bad PlatformView performance on Android#53532
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P2Important issues not at the top of the work lista: platform-viewsEmbedding Android/iOS views in Flutter appsc: performanceRelates to speed or footprint issues (see "perf:" labels)c: renderingUI glitches reported at the engine/skia or impeller rendering levelengineflutter/engine related. See also e: labels.perf: speedPerformance issues related to (mostly rendering) speedplatform-androidAndroid applications specificallyteam-androidOwned by Android platform teamtriaged-androidTriaged by Android platform team

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@t-artikov
t-artikov
opened on Mar 29, 2020

I'm trying to integrate native OpenGL rendering by exposing GLSurfaceView as PlatformView.
On my Nexus 6P (Android 8.1) the performance is quite bad, rendering is not smooth.

Here is a complete example:
https://github.com/t-artikov/flutter_platform_view_test

flutter doctor -v 
[✓] Flutter (Channel master, v1.16.4-pre.18, on Linux, locale en_US.UTF-8)
    • Flutter version 1.16.4-pre.18 at /home/timur/flutter
    • Framework revision c8efcb632b (2 days ago), 2020-03-27 22:31:01 -0700
    • Engine revision 3ee9e3d378
    • Dart version 2.8.0 (build 2.8.0-dev.18.0 1402e8e1a4)

[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
    • Android SDK at /home/timur/Android/Sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-29, build-tools 29.0.2
    • ANDROID_HOME = /home/timur/Android/Sdk
    • Java binary at: /snap/android-studio/84/android-studio/jre/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b4-5784211)
    • All Android licenses accepted.

[✓] Linux toolchain - develop for Linux desktop
    • clang++ 9.0.0
    • GNU Make 4.1

[✓] Android Studio (version 3.6)
    • Android Studio at /snap/android-studio/84/android-studio
    • Flutter plugin version 44.0.2
    • Dart plugin version 192.7761
    • Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b4-5784211)

[✓] VS Code (version 1.43.0)
    • VS Code at /usr/share/code
    • Flutter extension version 3.8.1

[✓] Connected device (2 available)
    • Nexus 6P • ENU7N15B06000345 • android-arm64 • Android 8.1.0 (API 27)
    • Linux    • Linux            • linux-x64     • Linux

• No issues found!

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    P2Important issues not at the top of the work lista: platform-viewsEmbedding Android/iOS views in Flutter appsc: performanceRelates to speed or footprint issues (see "perf:" labels)c: renderingUI glitches reported at the engine/skia or impeller rendering levelengineflutter/engine related. See also e: labels.perf: speedPerformance issues related to (mostly rendering) speedplatform-androidAndroid applications specificallyteam-androidOwned by Android platform teamtriaged-androidTriaged by Android platform team

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