I am studying Documents Providers and I have found something that I cannot understand, which also happens with the "StorageProvider" example of this repository.
It appears that all functions are called more than once when I open SAF.
2020-05-27 19:57:45.888 20322-20362/com.example.android.storageprovider V/MyCloudProvider: queryDocument
2020-05-27 19:57:45.971 20322-20362/com.example.android.storageprovider V/MyCloudProvider: queryChildDocuments, parentDocumentId: root: sortOrder: _display_name ASC
2020-05-27 19:57:45.990 20322-20362/com.example.android.storageprovider V/MyCloudProvider: queryChildDocuments, parentDocumentId: root: sortOrder: _display_name ASC
2020-05-27 19:57:46.036 20322-20362/com.example.android.storageprovider V/MyCloudProvider: openDocumentThumbnail
2020-05-27 19:57:46.078 20322-20362/com.example.android.storageprovider V/MyCloudProvider: openDocumentThumbnail
2020-05-27 19:57:46.093 20322-20362/com.example.android.storageprovider V/MyCloudProvider: openDocumentThumbnail
2020-05-27 19:57:46.109 20322-20362/com.example.android.storageprovider V/MyCloudProvider: openDocumentThumbnail
2020-05-27 19:58:01.127 20322-20341/com.example.android.storageprovider V/MyCloudProvider: queryDocument
2020-05-27 19:58:01.273 20322-20362/com.example.android.storageprovider V/MyCloudProvider: openDocument, mode: r
2020-05-27 19:58:01.306 20322-20362/com.example.android.storageprovider V/MyCloudProvider: openDocument, mode: r
2020-05-27 19:58:01.344 20322-20362/com.example.android.storageprovider V/MyCloudProvider: openDocument, mode: r
2020-05-27 19:58:01.345 20322-20341/com.example.android.storageprovider V/MyCloudProvider: openDocument, mode: r
2020-05-27 19:58:01.381 20322-20341/com.example.android.storageprovider V/MyCloudProvider: openDocument, mode: r
2020-05-27 19:58:01.775 20322-20341/com.example.android.storageprovider V/MyCloudProvider: queryDocument
2020-05-27 19:58:01.810 20322-20341/com.example.android.storageprovider V/MyCloudProvider: queryDocument
2020-05-27 19:58:01.843 20322-20341/com.example.android.storageprovider V/MyCloudProvider: openDocument, mode: r
2020-05-27 19:58:01.849 20322-20362/com.example.android.storageprovider V/MyCloudProvider: openDocument, mode: r
2020-05-27 19:58:01.854 20322-20341/com.example.android.storageprovider V/MyCloudProvider: openDocument, mode: r
2020-05-27 19:58:01.868 20322-20362/com.example.android.storageprovider V/MyCloudProvider: openDocument, mode: r