An electronic device displays a media capture user interface that includes a media capture preview of objects in a field of view of the camera. While displaying the media capture user interface, the electronic device scans the field of view of the camera for data encoded in an optical machine-readable format. In accordance with a determination that the field of view of the camera includes data encoded in the optical machine-readable format that meets respective notification criteria, the electronic device displays a notification that indicates that the camera application has detected data encoded in the optical machine-readable format. In accordance with a determination that the field of view of the camera does not include data encoded in the optical machine-readable format that meets the respective notification criteria, the electronic device maintains display of the media capture user interface of the camera application without displaying the notification.