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ceruleanotter avatar ceruleanotter commented on July 27, 2024

Thanks for reporting this and the feedback! Apologies for the confusion - in an older version of the codelab (which this screenshot was taken from) I did not teach about different top level destinations, so the screenshots were out of date.

The up button is not supposed to show up conditionally based on whether you got to the destination via deep link. Instead, this behavior is controlled by whether or not it's a top level destination, which is determined by passing in the id R.id.deeplink_dest to AppBarConfiguration. If it is top level, the up button shows. If it's not top level, the up button doesn't show (and either nothing or a nav drawer menu button shows). Hope that clarifies things and I am updating these screenshots so others will not be confused by this.

from codelab-android-navigation.

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