Save the date! Android Dev Summit is coming to Mountain View, CA on November 7-8, 2018.
added in API level 12

android.mtp

Provides APIs that let you interact directly with connected cameras and other devices, using the PTP (Picture Transfer Protocol) subset of the MTP (Media Transfer Protocol) specification. Your application can receive notifications when devices are attached and removed, manage files and storage on those devices, and transfer files and metadata from the devices.

Classes

MtpConstants A class containing constants in the MTP and PTP specifications. 
MtpDevice This class represents an MTP or PTP device connected on the USB host bus. 
MtpDeviceInfo This class encapsulates information about an MTP device. 
MtpEvent This class encapsulates information about a MTP event. 
MtpObjectInfo This class encapsulates information about an object on an MTP device. 
MtpObjectInfo.Builder Builds a new object info instance. 
MtpStorageInfo This class encapsulates information about a storage unit on an MTP device.