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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtBluetooth module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
package org.qtproject.qt5.android.bluetooth;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothGatt;
import android.bluetooth.BluetoothGattCallback;
import android.bluetooth.BluetoothGattService;
import android.bluetooth.BluetoothProfile;
import android.util.Log;
import java.util.ArrayList;
import java.util.List;
public class QtBluetoothLE {
private static final String TAG = "QtBluetoothGatt";
private BluetoothAdapter mBluetoothAdapter;
private boolean mLeScanRunning = false;
private BluetoothGatt mBluetoothGatt = null;
private String mRemoteGattAddress;
private BluetoothDevice mRemoteGattDevice = null;
/* Pointer to the Qt object that "owns" the Java object */
long qtObject = 0;
Activity qtactivity = null;
public QtBluetoothLE() {
mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
}
public QtBluetoothLE(final String remoteAddress, Activity activity) {
this();
qtactivity = activity;
mRemoteGattAddress = remoteAddress;
}
/*
Returns true, if request was successfully completed
*/
public boolean scanForLeDevice(final boolean isEnabled) {
if (isEnabled == mLeScanRunning)
return true;
if (isEnabled) {
mLeScanRunning = mBluetoothAdapter.startLeScan(leScanCallback);
} else {
mBluetoothAdapter.stopLeScan(leScanCallback);
mLeScanRunning = false;
}
return (mLeScanRunning == isEnabled);
}
// Device scan callback
private BluetoothAdapter.LeScanCallback leScanCallback =
new BluetoothAdapter.LeScanCallback() {
@Override
public void onLeScan(final BluetoothDevice device, int rssi, byte[] scanRecord) {
if (qtObject == 0)
return;
leScanResult(qtObject, device, rssi);
}
};
public native void leScanResult(long qtObject, BluetoothDevice device, int rssi);
private BluetoothGattCallback gattCallback = new BluetoothGattCallback() {
public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
if (qtObject == 0)
return;
int qLowEnergyController_State = 0;
//This must be in sync with QLowEnergyController::ControllerState
switch (newState) {
case BluetoothProfile.STATE_DISCONNECTED:
qLowEnergyController_State = 0; break;
case BluetoothProfile.STATE_CONNECTED:
qLowEnergyController_State = 2;
}
//This must be in sync with QLowEnergyController::Error
int errorCode;
switch (status) {
case BluetoothGatt.GATT_SUCCESS:
errorCode = 0; break; //QLowEnergyController::NoError
default:
Log.w(TAG, "Unhandled error code on connectionStateChanged: " + status);
errorCode = status; break; //TODO deal with all errors
}
leConnectionStateChange(qtObject, errorCode, qLowEnergyController_State);
}
public void onServicesDiscovered(BluetoothGatt gatt, int status) {
//This must be in sync with QLowEnergyController::Error
int errorCode;
StringBuilder builder = new StringBuilder();
switch (status) {
case BluetoothGatt.GATT_SUCCESS:
errorCode = 0; //QLowEnergyController::NoError
final List<BluetoothGattService> services = mBluetoothGatt.getServices();
for (BluetoothGattService service: services) {
builder.append(service.getUuid().toString() + " "); //space is separator
}
break;
default:
Log.w(TAG, "Unhandled error code on onServicesDiscovered: " + status);
errorCode = status; break; //TODO deal with all errors
}
leServicesDiscovered(qtObject, errorCode, builder.toString());
}
};
public native void leConnectionStateChange(long qtObject, int wasErrorTransition, int newState);
public native void leServicesDiscovered(long qtObject, int errorCode, String uuidList);
public boolean connect() {
if (mBluetoothGatt != null)
return mBluetoothGatt.connect();
mRemoteGattDevice = mBluetoothAdapter.getRemoteDevice(mRemoteGattAddress);
if (mRemoteGattDevice == null)
return false;
mBluetoothGatt = mRemoteGattDevice.connectGatt(qtactivity, false, gattCallback);
if (mBluetoothGatt == null)
return false;
return true;
}
public void disconnect() {
if (mBluetoothGatt == null)
return;
mBluetoothGatt.disconnect();
}
public boolean discoverServices()
{
if (mBluetoothGatt == null)
return false;
return mBluetoothGatt.discoverServices();
}
}
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