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[Impeller] Update README on preview status on Android. (#161253)

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Chinmay Garde 2025-01-07 11:43:53 -08:00 committed by GitHub
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engine/src/flutter/impeller/README.md
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@ -193,20 +193,20 @@ under the top-level `<dict>` tag:
### Android
Impeller is in preview on Android.
To your `AndroidManifest.xml` file, add under the `<application>` tag:
Impeller will use Vulkan on Android by **default**. To explicitly opt out of using Impeller,
add the following to your `AndroidManifest.xml` under the `<application>` tag.
```xml
<meta-data
android:name="io.flutter.embedding.android.EnableImpeller"
android:value="true" />
android:value="false" />
```
Impeller will use Vulkan on Android by default when opted into. Where Vulkan
is unavailable, Impeller will fallback to Skia. However, Impellers OpenGL backend
is well under construction. To try that with your application, add the following
under the `<application>` tag:
Where Vulkan is unavailable, Impeller will fallback to Skia.
However, Impellers OpenGL backend is well under construction. To try Impeller with OpenGL
in your application, add the following to your `AndroidManifest.xml` file under the
`<application>` tag:
> [!Warning]
> Selecting the Impeller backend this way will only work in `debug` and `profile`