According to the docs file path access is granted in Android R:
Starting in Android 11, apps that have the READ_EXTERNAL_STORAGE permission can read a device's media files using direct file paths and native libraries. This new capability allows your app to work more smoothly with third-party media libraries.
The problem is that I can't get the file path from MediaStore
, so how are we supposed to read a file path that we can't access/retrieve? Is there a way, I'm not aware of, that we can get the file path from MediaStore
?
Furthermore, the docs say the following:
All Files Access
Some apps have a core use case that requires broad file access, such as file management or backup & restore operations. They can get All Files Access by doing the following:
- Declare the MANAGE_EXTERNAL_STORAGE permission.
- Direct users to a system settings page where they can enable the Allow access to manage all files option for your app.
This permission grants the following:
- Read access and write access to all files within shared storage.
- Access to the contents of the MediaStore.Files table.
But I do not need all file access, I only want the user to select a video from MediaStore
and pass the file path to FFmpeg
(it requires a file path). I know that I can no longer use the _data
column to retrieve a file path.
Please note:
Uri
is returned from MediaStore
and does not point to a file.FFmpeg
, but I could do that before Android R.FileDescriptor
to FFmpeg
and I can not use /proc/self/fd/
(I get /proc/7828/fd/70: Permission denied
when selecting a file from the SD Card), have a look at this issue.So what am I supposed to do, am I missing something? What was meant with can read a device's media files using direct file paths and native libraries
?
After asking a question on issuetracker, I've come to the following conclusions:
File
restrictions that were added in Android Q is removed. So we can once again access File
objects.If you are targeting Android 10 > and you want to access/use file paths, you will have to add/keep the following in your manifest:
android:requestLegacyExternalStorage="true"
This is to ensure that file paths are working on Android 10(Q). On Android R this attribute will be ignored.
Don't use DATA column for inserting or updating into Media Store, use DISPLAY_NAME
and RELATIVE_PATH
, here is an example:
ContentValues valuesvideos;
valuesvideos = new ContentValues();
valuesvideos.put(MediaStore.Video.Media.RELATIVE_PATH, "Movies/" + "YourFolder");
valuesvideos.put(MediaStore.Video.Media.TITLE, "SomeName");
valuesvideos.put(MediaStore.Video.Media.DISPLAY_NAME, "SomeName");
valuesvideos.put(MediaStore.Video.Media.MIME_TYPE, "video/mp4");
valuesvideos.put(MediaStore.Video.Media.DATE_ADDED, System.currentTimeMillis() / 1000);
valuesvideos.put(MediaStore.Video.Media.DATE_TAKEN, System.currentTimeMillis());
valuesvideos.put(MediaStore.Video.Media.IS_PENDING, 1);
ContentResolver resolver = getContentResolver();
Uri collection = MediaStore.Video.Media.getContentUri(MediaStore.VOLUME_EXTERNAL_PRIMARY);
Uri uriSavedVideo = resolver.insert(collection, valuesvideos);
You can no longer use the ACTION_OPEN_DOCUMENT_TREE
or the ACTION_OPEN_DOCUMENT
intent action to request that the user select individual files from Android/data/
,Android/obb/
and all sub-directories.
File
objects when you need to perform "seeking", like when using FFmpeg
, for example.If you want to access a File
or want a file path from a Uri
that was returned from MediaStore
, I've created a library that handles all the exceptions you might get. This includes all files on the disk, internal and removable disk. When selecting a File
from Dropbox, for example, the File
will be copied to your applications directory where you have full access, the copied file path will then be returned.