Sender sent the file indeed, but receiver cannot save content normally due to below reason: 1. App shouldn't create the directory in external storage root, it should put files in its application path. 2. It is not allowed using file:// uri for posting file content above API 24, it should be done by FileProvider. Bug: 113998459 Test: manual test with two devices Change-Id: Ie50dd64206009f07414a85262e725cc4d8ac1757