Fix Sentry 1G8P/1FWW/1GSX/1G4S/1GC3/1GB9: track Reader posts off main thread#22862
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nbradbury wants to merge 3 commits into
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Fix Sentry 1G8P/1FWW/1GSX/1G4S/1GC3/1GB9: track Reader posts off main thread#22862nbradbury wants to merge 3 commits into
nbradbury wants to merge 3 commits into
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…r posts off main trackPostAtPositionIfNeeded ran ReaderPostTable.getBlogPost (rawQuery) twice on the main thread from a Handler.postDelayed in the pager. With a busy SQLite connection pool this exceeded the ANR budget. Wrap trackPost in lifecycleScope.launch(Dispatchers.IO) so the DB reads, the Volley page-view ping, and the analytics call all run off-main. The existing collaborators are already thread-safe: - bumpPageViewForPost queues a Volley request. - markPostAsSeenSilently launches its own coroutine. - readerTracker.trackPost only forwards to AnalyticsTracker. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Fixes a cluster of Reader pager ANRs where
ReaderPostPagerActivity.trackPostAtPositionIfNeededperformed twoReaderPostTable.getBlogPost(rawQuery) calls synchronously on the main thread from aHandler.postDelayed:When the SQLite connection pool was busy (Reader sync) the rawQuery parked on
acquireConnectionlong enough to trip the 5s ANR threshold.Changes
ReaderPostPagerActivity.trackPostnow runs insidelifecycleScope.launch(Dispatchers.IO). The collaborators it calls are all thread-safe:ReaderPostActions.bumpPageViewForPost— queues a Volley request.ReaderPostSeenStatusWrapper.markPostAsSeenSilently— already launches its own coroutine onBG_THREAD.ReaderTracker.trackPost— forwards toAnalyticsTracker.No UI code runs in the moved block, so dispatching to IO is safe.
Test plan
READER_ARTICLE_OPENEDanalytics still fire for each newly viewed post (check Tracks/console).