On most devices, internal storage is smaller than external Categories of storage locationsĪndroid provides two types of physical storage locations: internal storage andĮxternal storage. Internal storage has theĪdded benefit of the data being hidden from users. Should the data be private to your app? When storing sensitive data-data that shouldn't be accessible from any otherĪpp-use internal storage, preferences, or a database. For structured data, use either preferences (for key-valueĭata) or a database (for data that contains more than 2 columns). For shareable media content, use shared storage so that other apps canĪccess the content. What kind of data do you need to store? If you have data that's only meaningful for your app, use app-specific Is starting up, place the data within internal storage directory or a database.Īpp-specific files that are stored in external storage aren't always accessibleīecause some devices allow users to remove a physical device that corresponds toĮxternal storage. How reliable does data access need to be? If your app's basic functionality requires certain data, such as when your app Storage if you need to save a substantial amount of data. The solution you choose depends on your specific needs: How much space does your data require? Internal storage has limited space for app-specific data. Other types of shareable content, including downloaded files Yes, though the other app needs the READ_EXTERNAL_STORAGE Permissions are required for all files on Android 9 (API level 28) or When accessing other apps' files on Android 10 (API level 29) READ_EXTERNAL_STORAGE or WRITE_EXTERNAL_STORAGE READ_EXTERNAL_STORAGE when accessing other apps' files on Shareable media files (images, audio files, videos) Storage when your app is used on devices that run Android 4.4 (API level 19) The characteristics of these options are summarized in the following table: Databases: Store structured data in a private database using the Room.Preferences: Store private, primitive data in key-value pairs.Shared storage: Store files that your app intends to share with otherĪpps, including media, documents, and other files.Internal storage to save sensitive information that other apps shouldn't access. App-specific storage: Store files that are meant for your app's use only,Įither in dedicated directories within an internal storage volume or differentĭedicated directories within external storage.The system provides several options for you to save your app data: Similarly, you cannot access the content stored in this folder by connecting your phone to a PC and then copying the internal storage files.Android uses a file system that's similar to disk-based file systems on other Other apps cannot see the Secure Folder content on your phone. You can store as many files as you want as long as your phone has enough storage space. There's no storage limitation in Secure Folder. The feature is available on almost all of Samsung's recent mid-range and high-end flagship devices. Secure Folder is exclusive to Samsung phones-you won't find it on any other Android device. Secure Folder has been designed so that its data cannot be easily accessed by anyone, even if they gain access to your phone. You can use it to safely store important data, files, and apps and protect them using biometric authentication or a passcode. Secure Folder is a hidden space on your Samsung phone protected by the Knox security platform. Read on to learn everything about Secure Folder, how to set it up, and what kind of content you can store inside it.
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