mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
09e0e1b88e
Multiple methods in `RenderSliverFixedExtentBoxAdaptor` pass a `double itemExtent` for computing things like what children will be laid out, what the max scroll offset will be, and how the children will be laid out. Since `RenderSliverFixedExtentBoxAdaptor` was further subclassed to support a `itemExtentBuider` in `RenderSliverVariedExtentList`, these itemExtent parameters became useless when using that RenderObject. Reading through `RenderSliverFixedExtentBoxAdaptor.performLayout`, the remaining artifacts of passing around itemExtent make it hard to follow when it is irrelevant. `RenderSliverFixedExtentBoxAdaptor.itemExtent` is available from these methods, so it does not need to pass it. It is redundant API. Plus, if a bogus itemExtent is passed for some reason, errors will ensue and the layout will be incorrect. ð£ ð¥ Deprecating so we can remove these for a cleaner API. Unfortunately this is not supported by dart fix, but the fact that these methods are protected means usage outside of the framework is likely minimal.