Method and device based on android system for tracking imported file

摘要

An electronic device is configured to exchange data with a mobile storage device. The device monitors for a first event corresponding to the storage device being unmounted. In response to detecting the first event, the device records a first time. After the first event, the device monitors for a second event corresponding to the storage device being mounted. In response to detecting the second event, the device records a second time. After the second event, the device performs a scan of the storage device, stores the scanned data in a database, and records a storage path corresponding to the scanned data in the database. The device monitors for a third event corresponding to completion of the scan, and records a third time. The device retrieves a dataset with a timestamp between the first time and the third time and displays the dataset and the timestamp.