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Is it required to use the repeatOnLifeycle with state flow collecting in the UI ? As I am updating the UI only when it is visible on the screen.

If your requirement is to collect state emission efficiently based on UI lifecycle, then yes repeatOnLifecycle is the recommended approach one.

it's not *required*: `lifecycleScope.launchWhenStarted` will _pause_ when not visible. but `repeatOnLifecycle` is the better choice in most cases, as it will cancel and restart coroutines instead of just suspending them