This was silently removed with Android 11 though. Complainants have already tried the basic workarounds like restarting apps and deleting and recreating the second space all dual apps to no avail. The issue apparently also goes the other way as there have also been plenty of reports stating that cloned apps like WhatsApp and Facebook are unable to access images from the internal storage.
All of them have one thing in common — they bagged Android 11 recently. But what can be done about the matter? As it stands, literally nothing. The issue has most likely arisen due to a security restriction introduced with Android Active Oldest Votes.
Improve this answer. Community Bot 1. Bo Lawson Bo Lawson 2, 16 16 silver badges 18 18 bronze badges. This answer would be better if it explained a little bit about why it's "emulated". I believe Android does some hack to fake a FAT fs that's actually backed by something better, but I don't know the details and clicked this question hoping to learn something new. Here's an excellent article about it: xda-developers. Read Android's Storage Journey for details, the summary is: Early Android devices were short on internal storage and relied on physically external SD cards that traditionally use FAT family of filesystem to ensure compatibility with most of the PCs refer to Microsoft's dominance on PC world.
UMS exposes the device at block level and disconnects the SD card from Android framework un-mounts , thus making whole data unavailable to apps and possibly breaking many functionalities. MTP doesn't expose block device but works through software stack. MTP host runs on Android as an app android. Execute the commands again: See the difference in permissions of same files and directories. Irfan Latif Irfan Latif There are still some issues, though. For example, when using TubeMate on Twitter, you need to close the app and wait for 3 minutes.
Google removed TubeMap from its Play Store because it violates the terms of use. This is also true for alternative apps like Snaptube or Vidmate. You'll also want to bear in mind the TubeMate app will require permission to access your media files to save downloads and use the media player effectively. The most common error is due to insufficient storage. Deleting files or uninstalling some apps may help create more available space.
Finally, trying to install a corrupted APK file can cause an unsuccessful installation. TubeMate is an extremely popular app and prone to fake websites trying to take advantage of you. Both apps perform well as a video downloader. However, Vidmate offers more options than TubeMate and a more polished user interface with a better-looking design and more functionality.
Your app can contribute to well-defined media collections, including the MediaStore. Downloads collection, without requesting any storage-related permissions. If you're developing a camera app, for example, you don't need to request storage-related permissions because your app owns the images that you're writing to the media store. If your app wants to access a file within the MediaStore. Downloads collection that your app didn't create, you must use the Storage Access Framework.
To learn more about how to use this framework, see the guide on how to access documents and other files. To access media files more reliably, particularly if your app caches URIs or data from the media store, check whether the media store version has changed compared to when you last synced your media data.
To perform this check for updates, call getVersion. The returned version is a unique string that changes whenever the media store changes substantially. If the returned version is different from the last synced version, rescan and resync your app's media cache. Complete this check at app process startup time. There's no need to check the version each time you query the media store. To find media that satisfies a particular set of conditions, such as a duration of 5 minutes or longer, use an SQL-like selection statement similar to the one shown in the following code snippet:.
If your app shows multiple media files and requests that the user choose one of these files, it's more efficient to load preview versions—or thumbnails—of the files instead of the files themselves. To load the thumbnail for a given media file, use loadThumbnail and pass in the size of the thumbnail that you want to load, as shown in the following code snippet:.
The specific logic that you use to open a media file depends on whether the media content is best represented as a file descriptor, a file stream, or a direct file path:.
To open a media file using a file descriptor, use logic similar to that shown in the following code snippet:. To open a media file using a file stream, use logic similar to that shown in the following code snippet:.
You can instead access media files directly using either of the following APIs:. If you don't have any storage-related permissions, you can access files in your app-specific directory , as well as media files that are attributed to your app , using the File API. To access other files in shared storage on a device that runs Android 10 API level 29 , it's recommended that you temporarily opt out of scoped storage by setting requestLegacyExternalStorage to true in your app's manifest file.
When accessing media content, keep in mind the considerations discussed in the following sections. If your app caches URIs or data from the media store, periodically check for updates to the media store. This check allows your app-side, cached data to stay in sync with the system-side, provider data. When you perform sequential reads of media files using direct file paths, the performance is comparable to that of the MediaStore API.
When you perform random reads and writes of media files using direct file paths, however, the process can be up to twice as slow. When you access an existing media file, you can use the value of the DATA column in your logic. That's because this value has a valid file path. However, don't assume that the file is always available.
To create or update a media file, on the other hand, don't use the value of the DATA column. Apps that target Android 10 or higher can access the unique name that the system assigns to each external storage volume. This naming system helps you efficiently organize and index content, and it gives you control over where new media files are stored. You can discover other volumes by calling MediaStore. Some photographs and videos contain location information in their metadata, which shows the place where a photograph was taken or where a video was recorded.
To access this location information in your app, use one API for photograph location information and another API for video location information.
If your app uses scoped storage , the system hides location information by default. To access this information, complete the following steps:. From your MediaStore object, get the exact bytes of the photograph by calling setRequireOriginal and pass in the URI of the photograph, as shown in the following code snippet:.
To access location information within a video's metadata, use the MediaMetadataRetriever class, as shown in the following code snippet. Your app doesn't need to request any additional permissions to use this class. Some apps allow users to share media files with each other. For example, social media apps give users the ability to share photos and videos with friends.
When scoped storage is enabled for an app that targets Android 10 or higher, the system attributes an app to each media file, which determines the files that your app can access when it hasn't requested any storage permissions. Each file can be attributed to only one app. Therefore, if your app creates a media file that's stored in the photos, videos, or audio files media collection, your app has access to the file.
This permission request is required because the system considers the file to be attributed to the previously-installed version of the app, rather than the newly-installed one. To add a media item to an existing collection, call code similar to the following. That's because, on these devices, you can only modify the contents of a volume if it's the primary volume, as described in the storage volumes section. If your app performs potentially time-consuming operations, such as writing to media files, it's useful to have exclusive access to the file as it's being processed.
The following code snippet builds upon the previous code snippet. Audio collection:. When your app stores media on a device running Android 10, the media is organized based on its type by default. For example, new image files are placed by default in the Environment. Images collection. If scoped storage is unavailable or not enabled, the process shown in the preceding code snippet also works for files that your app doesn't own. When a user adopts a new storage device, the platform runs a benchmark and compares its performance against internal storage.
If the adopted device is significantly slower than internal storage, the platform warns the user about a possibly degraded experience. Currently, the AOSP implementation will only warn users beyond a single threshold, but device manufacturers may adapt this further, such as rejecting adoption completely if the card is extremely slow. Adopted devices must be formatted with a filesystem that supports POSIX permissions and extended attributes, such as ext4 or f2fs.
For optimal performance, the f2fs filesystem is recommended for flash-based storage devices. To verify behavior of USB drives and SD cards when a device doesn't have a built-in slot or when the USB connector is being used for an active adb connection, use:.
Content and code samples on this page are subject to the licenses described in the Content License. Docs Getting Started About. Core Topics Architecture. Overview Architecture. Modular System Components. Modular Kernels. HIDL General. HIDL Java. ConfigStore HAL.
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