How to Handle Deferred Deep Links in Flutter Using LinkTrail

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Flutter apps handle deep links well when the app is already installed, but fail silently on new installs where the link is tapped before the app exists. In such deferred cases, neither iOS nor Android delivers the original link on first launch, requiring a server-side matching mechanism rather than standard link routing. Developers must configure native platform files — assetlinks.json for Android and apple-app-site-association for iOS — before any Dart-side code can function. The LinkTrail Flutter package addresses both scenarios: linkStream handles live link events for installed apps, while getFirstOpenLink resolves the deferred link once on the very first launch. Using only one of the two methods is a common bug that causes links to break after the initial install.

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ProgrammingDEV Community ·

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