Examples with MtpDevice android.mtp.MtpDevice used on opensource projects

Example 26 with MtpDevice

use of android.mtp.MtpDevice in project android_frameworks_base by DirtyUnicorns.

the class MtpManager method getRoots.

private MtpRoot[] getRoots(int deviceId) throws IOException {
    final MtpDevice device = getDevice(deviceId);
    synchronized (device) {
        final int[] storageIds = ensureNotNull(device.getStorageIds(), "Failed to obtain storage IDs.");
        final ArrayList<MtpRoot> roots = new ArrayList<>();
        for (int i = 0; i < storageIds.length; i++) {
            final MtpStorageInfo info = device.getStorageInfo(storageIds[i]);
            if (info == null) {
                continue;
            }
            roots.add(new MtpRoot(device.getDeviceId(), info));
        }
        return roots.toArray(new MtpRoot[roots.size()]);
    }
}

Example 27 with MtpDevice

use of android.mtp.MtpDevice in project android_frameworks_base by crdroidandroid.

the class MtpClient method getObjectList.

/**
     * Retrieves a list of {@link android.mtp.MtpObjectInfo} for all objects
     * on the MTP or PTP device with the given USB device name and given storage ID
     * and/or object handle.
     * If the object handle is zero, then all objects in the root of the storage unit
     * will be returned. Otherwise, all immediate children of the object will be returned.
     * If the storage ID is also zero, then all objects on all storage units will be returned.
     *
     * @param deviceName the name of the USB device
     * @param storageId the ID of the storage unit to query, or zero for all
     * @param objectHandle the handle of the parent object to query, or zero for the storage root
     * @return the list of MtpObjectInfo
     */
public List<MtpObjectInfo> getObjectList(String deviceName, int storageId, int objectHandle) {
    MtpDevice device = getDevice(deviceName);
    if (device == null) {
        return null;
    }
    if (objectHandle == 0) {
        // all objects in root of storage
        objectHandle = 0xFFFFFFFF;
    }
    int[] handles = device.getObjectHandles(storageId, 0, objectHandle);
    if (handles == null) {
        return null;
    }
    int length = handles.length;
    ArrayList<MtpObjectInfo> objectList = new ArrayList<MtpObjectInfo>(length);
    for (int i = 0; i < length; i++) {
        MtpObjectInfo info = device.getObjectInfo(handles[i]);
        if (info == null) {
            Log.w(TAG, "getObjectInfo failed");
        } else {
            objectList.add(info);
        }
    }
    return objectList;
}