If you’ve ever switched from ViewPager to ViewPager2 and suddenly your pages are blank, tabs are visible but fragment content doesn’t show, welcome to the club.This invisible layout bug cost me almost an entire day.

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ViewPager2 can render blank pages when migrating from ViewPager due to a layout measurement issue. Unlike the original ViewPager, ViewPager2 relies on RecyclerView and requires a measurable height from its parent layout. If the parent uses wrap_content or weak constraints, ViewPager2 gets assigned 0 height, causing fragments not to render. The fix involves ensuring the parent provides measurable dimensions through match_parent, fixed dp values, or proper ConstraintLayout constraints with 0dp. Special considerations apply when nesting inside ScrollView (disable swipe or use fixed height) and ConstraintLayout (use MATCH_CONSTRAINT with proper constraints).

Migrating to ViewPager2? Beware This Invisible Layout Bug