bc4cb0bc79
Also added some support for sending files to the device that hasn't been debugged yet. Add locking to MtpDevice to prevent it from attempting multiple transactions simultaneously. Change-Id: I2b995ba0af086cc6920bd6b8c869f540ad78560a Signed-off-by: Mike Lockwood <lockwood@android.com>
105 lines
2.9 KiB
Java
105 lines
2.9 KiB
Java
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.media;
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import android.os.ParcelFileDescriptor;
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import android.util.Log;
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/**
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* {@hide}
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*/
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public class MtpClient {
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private static final String TAG = "MtpClient";
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private final Listener mListener;
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static {
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System.loadLibrary("media_jni");
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}
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public MtpClient(Listener listener) {
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native_setup();
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if (listener == null) {
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throw new NullPointerException("MtpClient: listener is null");
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}
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mListener = listener;
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}
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@Override
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protected void finalize() {
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native_finalize();
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}
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public boolean start() {
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return native_start();
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}
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public void stop() {
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native_stop();
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}
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public boolean deleteObject(int deviceID, int objectID) {
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return native_delete_object(deviceID, objectID);
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}
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public int getParent(int deviceID, int objectID) {
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return native_get_parent(deviceID, objectID);
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}
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public int getStorageID(int deviceID, int objectID) {
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return native_get_storage_id(deviceID, objectID);
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}
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// create a file descriptor for reading the contents of an object over MTP
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public ParcelFileDescriptor openFile(int deviceID, int objectID) {
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return native_open_file(deviceID, objectID);
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}
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public interface Listener {
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// called when a new MTP device has been discovered
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void deviceAdded(int id);
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// called when an MTP device has been removed
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void deviceRemoved(int id);
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}
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// called from native code
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private void deviceAdded(int id) {
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Log.d(TAG, "deviceAdded " + id);
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mListener.deviceAdded(id);
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}
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// called from native code
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private void deviceRemoved(int id) {
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Log.d(TAG, "deviceRemoved " + id);
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mListener.deviceRemoved(id);
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}
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// used by the JNI code
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private int mNativeContext;
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private native final void native_setup();
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private native final void native_finalize();
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private native boolean native_start();
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private native void native_stop();
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private native boolean native_delete_object(int deviceID, int objectID);
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private native int native_get_parent(int deviceID, int objectID);
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private native int native_get_storage_id(int deviceID, int objectID);
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private native ParcelFileDescriptor native_open_file(int deviceID, int objectID);
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}
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