private Uri toProxyUri(final Uri uri) {
		return replaceAuthorityInUri(uri, mShuttleAuthority);
	}
This single-user provider serves as a proxy provider, since it can be accessed from any user.

Created by Oasis on 2017/8/29.
fileprovider/src/main/java/com/oasisfeng/island/fileprovider/ShuttleProvider.java