Update an app that uses default back navigation Implementing the AndroidX and platform APIs. You can also view our Google I/O video, which covers additional examples of Predictive back gesture using AndroidX Activity APIs. It provides a common use-case implementation of a WebView handling the In addition to using this documentation on this page, try out our codelab. KeyEvent.KEYCODE_BACK is no longer supported. Note: KeyEvent.KEYCODE_BACK is not deprecated as there are some supported useĬases of KeyEvent.KEYCODE_BACK however, intercepting back events from In the meantime, we strongly recommend updating your app to ensure you get We plan to make this UI available to users in a future Android release. It does provide an early version of the UI as a developer option for Note: Android 13 doesn't make the predictive back gesture visible to users, but Which involves replacing back interceptions from KeyEvent.KEYCODE_BACKĪnd any classes with onBackPressed methods such as Activity andĭialog with the new system Back APIs. This update provides a migration path to properly intercept back navigation,

Most apps will use the backward compatible AndroidX API. (AndroidX) or higher API, or using the new OnBackInvokedCallback OnBackPressedCallback AppCompat 1.6.0-alpha05 Supporting the predictive back gesture requires updating your app, using the Test this back-to-home animation by enabling a developer option

The Home screen behind your app, as presented in the mockup in figure 1.

Will let users preview the destination or other result of a back gesture beforeįully completing it, allowing them to decide whether to continue or stay inįor example, using a back gesture can display an animated preview of It is part of a multi-year release when fully implemented, this feature Mockup of the predictive back gesture look and feel on a phoneĪndroid 13 (API level 33) introduces a predictive back gesture for Androidĭevices such as phones, large screens, and foldables.

Build release apk android studio