use immutable buffer for loading asset images #103496
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May 11, 2022
dev/automated_tests/pubspec.yaml
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| @@ -70,6 +70,6 @@ dependencies: | |||
| flutter: | |||
| uses-material-design: true | |||
| assets: | |||
| - icon/ | |||
| - icon/test.png | |||
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This was indented wrong and never loaded the asset
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Why didn't the associated test above fail, then? It seems to claim that it tests whether the asset loads....
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The previously used asset loader workaround does not throw errors in the same way as the regular asset loader: https://github.com/flutter/flutter/blob/master/packages/flutter_test/lib/src/_binding_io.dart#L34
…er into use_immutable_buffer
|
TBD whether or not we should leave the old methods implemented. I intended to do further testing to see if there are any places in google that uses the load method directly |
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Loading asset images via the immutable buffer should both improve loading performance by removing a copy and reduce GC pressure by avoiding a round-trip of the compressed image bytes through the dart heap.
This is the start of a breaking change, this PR is intended to be non-breaking (though it currently isn't, for testing purposes)
To make this change less-breaking, a default implementation of the loadBuffer is added to imageProvider, that returns a const instance of a no-op image stream. We detect this case and fallback to the old load method conditionally, allowing image providers time to migrate.