Access documents and other files from shared storage | 合法醫療器材資訊網
2021年5月6日—Openavirtualfile...OnAndroid7.0(APIlevel25)andhigher,yourappcanmakeuseofvirtualfilesthattheStorageAccessFrameworkmakes ...
On devices that run Android 4.4 (API level 19) and higher, your app can interact with a documents provider[1], including external storage volumes and cloud-based storage, using the Storage Access Framework. This framework allows users to interact with a system picker to choose a documents provider and select specific documents and other files for your app to create, open, or modify.
Because the user is involved in selecting the files or directories that your app can access, this mechanism doesnt require any system permissions[2], and user control and privacy is enhanced. Additionally, these files, which are stored outside of an app-specific directory and outside of the media store, remain on the device after your app is uninstalled.
Using the framework involves the following steps:
An app invokes an intent that contains a storage-related action. This action corresponds...Access documents and other files from shared storage | 合法醫療器材資訊網
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【放射性同位素診斷設備】許可證字號:衛署醫器輸字第000236號
器材品名:放射性同位素診斷設備許可證字號:衛署醫器輸字第000236號註銷狀態:已註銷註銷日期:1985/09/26註銷理由:未展延而逾...