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kotlinlang

*I’m encountering an issue when using `AndroidViewBinding` and I think it may be an point worth optimizing:*
`AndroidViewBinding` ’s `update` block is invoked at least twice. Even when the update lambda is empty:
```AndroidViewBinding(factory = AnyBinding::inflate) {
  // ...
}```

*Maybe we can optimize it in the following way:*
Since a new instance of `update` block is created every recomposition, it’s better to remember it before passing it to `AndroidView`:
```val updateBlock = remember {
  { viewBindingRef.value?.update() }
}
AndroidView(
    factory = viewBlock,
    modifier = modifier,
    update = updateBlock
)```
And, since
`fragmentContainerViews.clear()`
can cause a recomposition, it’s also better to check whether `fragmentContainerViews` is empty before clear it:
```if (fragmentContainerViews.isNotEmpty()) {
  fragmentContainerViews.clear()
}```
Thus, when there’s no Fragment in the inflated layout, no recomposition will be triggered.