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

Example 11 with MtpDevice

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

the class MtpClient method getStorageList.

/**
     * Retrieves a list of all {@link android.mtp.MtpStorageInfo}
     * for the MTP or PTP device with the given USB device name
     *
     * @param deviceName the name of the USB device
     * @return the list of MtpStorageInfo
     */
public List<MtpStorageInfo> getStorageList(String deviceName) {
    MtpDevice device = getDevice(deviceName);
    if (device == null) {
        return null;
    }
    int[] storageIds = device.getStorageIds();
    if (storageIds == null) {
        return null;
    }
    int length = storageIds.length;
    ArrayList<MtpStorageInfo> storageList = new ArrayList<MtpStorageInfo>(length);
    for (int i = 0; i < length; i++) {
        MtpStorageInfo info = device.getStorageInfo(storageIds[i]);
        if (info == null) {
            Log.w(TAG, "getStorageInfo failed");
        } else {
            storageList.add(info);
        }
    }
    return storageList;
}

Example 12 with MtpDevice

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

the class MtpClient method getStorageList.

/**
     * Retrieves a list of all {@link android.mtp.MtpStorageInfo}
     * for the MTP or PTP device with the given USB device name
     *
     * @param deviceName the name of the USB device
     * @return the list of MtpStorageInfo
     */
public List<MtpStorageInfo> getStorageList(String deviceName) {
    MtpDevice device = getDevice(deviceName);
    if (device == null) {
        return null;
    }
    int[] storageIds = device.getStorageIds();
    if (storageIds == null) {
        return null;
    }
    int length = storageIds.length;
    ArrayList<MtpStorageInfo> storageList = new ArrayList<MtpStorageInfo>(length);
    for (int i = 0; i < length; i++) {
        MtpStorageInfo info = device.getStorageInfo(storageIds[i]);
        if (info == null) {
            Log.w(TAG, "getStorageInfo failed");
        } else {
            storageList.add(info);
        }
    }
    return storageList;
}

Example 13 with MtpDevice

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

the class MtpManager method createDeviceRecord.

private MtpDeviceRecord createDeviceRecord(UsbDevice device) {
    final MtpDevice mtpDevice = mDevices.get(device.getDeviceId());
    final boolean opened = mtpDevice != null;
    final String name = device.getProductName();
    MtpRoot[] roots;
    int[] operationsSupported = null;
    int[] eventsSupported = null;
    if (opened) {
        try {
            roots = getRoots(device.getDeviceId());
        } catch (IOException exp) {
            Log.e(MtpDocumentsProvider.TAG, "Failed to open device", exp);
            // If we failed to fetch roots for the device, we still returns device model
            // with an empty set of roots so that the device is shown DocumentsUI as long as
            // the device is physically connected.
            roots = new MtpRoot[0];
        }
        final MtpDeviceInfo info = mtpDevice.getDeviceInfo();
        if (info != null) {
            operationsSupported = info.getOperationsSupported();
            eventsSupported = info.getEventsSupported();
        }
    } else {
        roots = new MtpRoot[0];
    }
    return new MtpDeviceRecord(device.getDeviceId(), name, device.getSerialNumber(), opened, roots, operationsSupported, eventsSupported);
}

Example 14 with MtpDevice

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

the class MtpManager method openDevice.

synchronized MtpDeviceRecord openDevice(int deviceId) throws IOException {
    UsbDevice rawDevice = null;
    for (final UsbDevice candidate : mManager.getDeviceList().values()) {
        if (candidate.getDeviceId() == deviceId) {
            rawDevice = candidate;
            break;
        }
    }
    ensureNotNull(rawDevice, "Not found USB device: " + deviceId);
    if (!mManager.hasPermission(rawDevice)) {
        mManager.grantPermission(rawDevice);
        if (!mManager.hasPermission(rawDevice)) {
            throw new IOException("Failed to grant a device permission.");
        }
    }
    final MtpDevice device = new MtpDevice(rawDevice);
    final UsbDeviceConnection connection = ensureNotNull(mManager.openDevice(rawDevice), "Failed to open a USB connection.");
    if (!device.open(connection)) {
        // We cannot open connection when another application use the device.
        throw new BusyDeviceException();
    }
    // Handle devices that fail to obtain storages just after opening a MTP session.
    final int[] storageIds = ensureNotNull(device.getStorageIds(), "Not found MTP storages in the device.");
    mDevices.put(deviceId, device);
    return createDeviceRecord(rawDevice);
}

Example 15 with MtpDevice

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

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()]);
    }
}