/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.bluetooth.le;
import android.annotation.SuppressLint;
import android.app.Service;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothGatt;
import android.bluetooth.BluetoothGattCallback;
import android.bluetooth.BluetoothGattCharacteristic;
import android.bluetooth.BluetoothGattDescriptor;
import android.bluetooth.BluetoothGattService;
import android.bluetooth.BluetoothManager;
import android.bluetooth.BluetoothProfile;
import android.content.Context;
import android.content.Intent;
import android.os.Binder;
import android.os.IBinder;
import android.util.Log;
import java.util.List;
import java.util.UUID;
/**
* Service for managing connection and data communication with a GATT server hosted on a
* given Bluetooth LE device.
*/
@SuppressLint("NewApi")
public class BluetoothLeService extends Service {
private final static String TAG = BluetoothLeService.class.getSimpleName();
private BluetoothManager mBluetoothManager;
private BluetoothAdapter mBluetoothAdapter;
private String mBluetoothDeviceAddress;
private BluetoothGatt mBluetoothGatt;
private int mConnectionState = STATE_DISCONNECTED;
private static final int STATE_DISCONNECTED = 0;
private static final int STATE_CONNECTING = 1;
private static final int STATE_CONNECTED = 2;
public final static String ACTION_GATT_CONNECTED = "com.example.bluetooth.le.ACTION_GATT_CONNECTED";
public final static String ACTION_GATT_DISCONNECTED = "com.example.bluetooth.le.ACTION_GATT_DISCONNECTED";
public final static String ACTION_GATT_SERVICES_DISCOVERED = "com.example.bluetooth.le.ACTION_GATT_SERVICES_DISCOVERED";
public final static String ACTION_DATA_AVAILABLE = "com.example.bluetooth.le.ACTION_DATA_AVAILABLE";
public final static String EXTRA_DATA = "com.example.bluetooth.le.EXTRA_DATA";
public final static UUID UUID_HEART_RATE_MEASUREMENT = UUID.fromString(SampleGattAttributes.HEART_RATE_MEASUREMENT);
// Implements callback methods for GATT events that the app cares about. For example,
// connection change and services discovered.
private final BluetoothGattCallback mGattCallback = new BluetoothGattCallback() {
@Override
public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
String intentAction;
if (newState == BluetoothProfile.STATE_CONNECTED) {
intentAction = ACTION_GATT_CONNECTED;
mConnectionState = STATE_CONNECTED;
broadcastUpdate(intentAction);
Log.i(TAG, "Connected to GATT server.");
// Attempts to discover services after successful connection.
Log.i(TAG, "Attempting to start service discovery:"
mBluetoothGatt.discoverServices());
} else if (newState == BluetoothProfile.STATE_DISCONNECTED) {
intentAction = ACTION_GATT_DISCONNECTED;
mConnectionState = STATE_DISCONNECTED;
Log.i(TAG, "Disconnected from GATT server.");
broadcastUpdate(intentAction);
}
}
@Override
public void onServicesDiscovered(BluetoothGatt gatt, int status) {
if (status == BluetoothGatt.GATT_SUCCESS) {
broadcastUpdate(ACTION_GATT_SERVICES_DISCOVERED);
} else {
Log.w(TAG, "onServicesDiscovered received: " status);
}
}
@Override
public void onCharacteristicRead(BluetoothGatt gatt,
BluetoothGattCharacteristic characteristic,
int status) {
if (status == BluetoothGatt.GATT_SUCCESS) {
broadcastUpdate(ACTION_DATA_AVAILABLE, characteristic);
}
}
@Override
public void onCharacteristicChanged(BluetoothGatt gatt,
BluetoothGattCharacteristic characteristic) {
broadcastUpdate(ACTION_DATA_AVAILABLE, characteristic);
}
};
private void broadcastUpdate(final String action) {
final Intent intent = new Intent(action);
sendBroadcast(intent);
}
private void broadcastUpdate(final String action,
final BluetoothGattCharacteristic characteristic) {
final Intent intent = new Intent(action);
// This is special handling for the Heart Rate Measurement profile. Data parsing is
// carried out as per profile specifications:
// http://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml
if (UUID_HEART_RATE_MEASUREMENT.equals(characteristic.getUuid())) {
int flag = characteristic.getProperties();
int format = -1;
if ((flag & 0x01) != 0) {
format = BluetoothGattCharacteristic.FORMAT_UINT16;
Log.d(TAG, "Heart rate format UINT16.");
} else {
format = BluetoothGattCharacteristic.FORMAT_UINT8;
Log.d(TAG, "Heart rate format UINT8.");
}
final int heartRate = characteristic.getIntValue(format, 1);
Log.d(TAG, String.format("Received heart rate: %d", heartRate));
intent.putExtra(EXTRA_DATA, String.valueOf(heartRate));
} else {
// For all other profiles, writes the data formatted in HEX.
final byte[] data = characteristic.getValue();
if (data != null && data.length > 0) {
final StringBuilder stringBuilder = new StringBuilder(data.length);
for(byte byteChar : data)
stringBuilder.append(String.format("%02X ", byteChar));
intent.putExtra(EXTRA_DATA, new String(data) "\n" stringBuilder.toString());
}
}
sendBroadcast(intent);
}
public class LocalBinder extends Binder {
BluetoothLeService getService() {
return BluetoothLeService.this;
}
}
@Override
public IBinder onBind(Intent intent) {
return mBinder;
}
@Override
public boolean onUnbind(Intent intent) {
// After using a given device, you should make sure that BluetoothGatt.close() is called
// such that resources are cleaned up properly. In this particular example, close() is
// invoked when the UI is disconnected from the Service.
close();
return super.onUnbind(intent);
}
private final IBinder mBinder = new LocalBinder();
/**
* Initializes a reference to the local Bluetooth adapter.
*
* @return Return true if the initialization is successful.
*/
public boolean initialize() {
// For API level 18 and above, get a reference to BluetoothAdapter through
// BluetoothManager.
if (mBluetoothManager == null) {
mBluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
if (mBluetoothManager == null) {
Log.e(TAG, "Unable to initialize BluetoothManager.");
return false;
}
}
mBluetoothAdapter = mBluetoothManager.getAdapter();
if (mBluetoothAdapter == null) {
Log.e(TAG, "Unable to obtain a BluetoothAdapter.");
return false;
}
return true;
}
/**
* Connects to the GATT server hosted on the Bluetooth LE device.
*
* @param address The device address of the destination device.
*
* @return Return true if the connection is initiated successfully. The connection result
* is reported asynchronously through the
* {@code BluetoothGattCallback#onConnectionStateChange(android.bluetooth.BluetoothGatt, int, int)}
* callback.
*/
public boolean connect(final String address) {
if (mBluetoothAdapter == null || address == null) {
Log.w(TAG, "BluetoothAdapter not initialized or unspecified address.");
return false;
}
// Previously connected device. Try to reconnect.
if (mBluetoothDeviceAddress != null && address.equals(mBluetoothDeviceAddress)
&& mBluetoothGatt != null) {
Log.d(TAG, "Trying to use an existing mBluetoothGatt for connection.");
if (mBluetoothGatt.connect()) {
mConnectionState = STATE_CONNECTING;
return true;
} else {
return false;
}
}
final BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address);
if (device == null) {
Log.w(TAG, "Device not found. Unable to connect.");
return false;
}
// We want to directly connect to the device, so we are setting the autoConnect
// parameter to false.
mBluetoothGatt = device.connectGatt(this, false, mGattCallback);
Log.d(TAG, "Trying to create a new connection.");
mBluetoothDeviceAddress = address;
mConnectionState = STATE_CONNECTING;
return true;
}
/**
* Disconnects an existing connection or cancel a pending connection. The disconnection result
* is reported asynchronously through the
* {@code BluetoothGattCallback#onConnectionStateChange(android.bluetooth.BluetoothGatt, int, int)}
* callback.
*/
public void disconnect() {
if (mBluetoothAdapter == null || mBluetoothGatt == null) {
Log.w(TAG, "BluetoothAdapter not initialized");
return;
}
mBluetoothGatt.disconnect();
}
/**
* After using a given BLE device, the app must call this method to ensure resources are
* released properly.
*/
public void close() {
if (mBluetoothGatt == null) {
return;
}
mBluetoothGatt.close();
mBluetoothGatt = null;
}
/**
* Request a read on a given {@code BluetoothGattCharacteristic}. The read result is reported
* asynchronously through the {@code BluetoothGattCallback#onCharacteristicRead(android.bluetooth.BluetoothGatt, android.bluetooth.BluetoothGattCharacteristic, int)}
* callback.
*
* @param characteristic The characteristic to read from.
*/
public void readCharacteristic(BluetoothGattCharacteristic characteristic) {
if (mBluetoothAdapter == null || mBluetoothGatt == null) {
Log.w(TAG, "BluetoothAdapter not initialized");
return;
}
mBluetoothGatt.readCharacteristic(characteristic);
}
/**
* Enables or disables notification on a give characteristic.
*
* @param characteristic Characteristic to act on.
* @param enabled If true, enable notification. False otherwise.
*/
public void setCharacteristicNotification(BluetoothGattCharacteristic characteristic,
boolean enabled) {
if (mBluetoothAdapter == null || mBluetoothGatt == null) {
Log.w(TAG, "BluetoothAdapter not initialized");
return;
}
mBluetoothGatt.setCharacteristicNotification(characteristic, enabled);
// This is specific to Heart Rate Measurement.
if (UUID_HEART_RATE_MEASUREMENT.equals(characteristic.getUuid())) {
BluetoothGattDescriptor descriptor = characteristic.getDescriptor(
UUID.fromString(SampleGattAttributes.CLIENT_CHARACTERISTIC_CONFIG));
descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
mBluetoothGatt.writeDescriptor(descriptor);
}
}
/**
* Retrieves a list of supported GATT services on the connected device. This should be
* invoked only after {@code BluetoothGatt#discoverServices()} completes successfully.
*
* @return A {@code List} of supported services.
*/
public List<BluetoothGattService> getSupportedGattServices() {
if (mBluetoothGatt == null) return null;
return mBluetoothGatt.getServices();
}
}
资源文件列表
Bluetooth4_3/.project , 848
Bluetooth4_3/.settings/org.eclipse.core.resources.prefs , 55
Bluetooth4_3/.settings/org.eclipse.jdt.core.prefs , 177
Bluetooth4_3/AndroidManifest.xml , 1298
Bluetooth4_3/bin/AndroidManifest.xml , 1298
Bluetooth4_3/bin/Bluetooth4_3.apk , 235588
Bluetooth4_3/bin/classes/com/example/bluetooth/le/BluetoothLeService$1.class , 2919
Bluetooth4_3/bin/classes/com/example/bluetooth/le/BluetoothLeService$LocalBinder.class , 703
Bluetooth4_3/bin/classes/com/example/bluetooth/le/BluetoothLeService.class , 8201
Bluetooth4_3/bin/classes/com/example/bluetooth/le/BuildConfig.class , 357
Bluetooth4_3/bin/classes/com/example/bluetooth/le/DeviceControlActivity$1.class , 1905
Bluetooth4_3/bin/classes/com/example/bluetooth/le/DeviceControlActivity$2.class , 2188
Bluetooth4_3/bin/classes/com/example/bluetooth/le/DeviceControlActivity$3.class , 2197
Bluetooth4_3/bin/classes/com/example/bluetooth/le/DeviceControlActivity$4.class , 931
Bluetooth4_3/bin/classes/com/example/bluetooth/le/DeviceControlActivity.class , 11007
Bluetooth4_3/bin/classes/com/example/bluetooth/le/DeviceScanActivity$1$1.class , 1377
Bluetooth4_3/bin/classes/com/example/bluetooth/le/DeviceScanActivity$1.class , 1306
Bluetooth4_3/bin/classes/com/example/bluetooth/le/DeviceScanActivity$2.class , 1272
Bluetooth4_3/bin/classes/com/example/bluetooth/le/DeviceScanActivity$LeDeviceListAdapter.class , 3039
Bluetooth4_3/bin/classes/com/example/bluetooth/le/DeviceScanActivity$ViewHolder.class , 517
Bluetooth4_3/bin/classes/com/example/bluetooth/le/DeviceScanActivity.class , 6574
Bluetooth4_3/bin/classes/com/example/bluetooth/le/MainActivity.class , 829
Bluetooth4_3/bin/classes/com/example/bluetooth/le/R$attr.class , 358
Bluetooth4_3/bin/classes/com/example/bluetooth/le/R$dimen.class , 479
Bluetooth4_3/bin/classes/com/example/bluetooth/le/R$drawable.class , 425
Bluetooth4_3/bin/classes/com/example/bluetooth/le/R$id.class , 738
Bluetooth4_3/bin/classes/com/example/bluetooth/le/R$layout.class , 569
Bluetooth4_3/bin/classes/com/example/bluetooth/le/R$menu.class , 443
Bluetooth4_3/bin/classes/com/example/bluetooth/le/R$string.class , 1024
Bluetooth4_3/bin/classes/com/example/bluetooth/le/R$style.class , 449
Bluetooth4_3/bin/classes/com/example/bluetooth/le/R.class , 733
Bluetooth4_3/bin/classes/com/example/bluetooth/le/SampleGattAttributes.class , 1469
Bluetooth4_3/bin/classes.dex , 649444
Bluetooth4_3/bin/dexedLibs/android-support-v4-4e494c5f0857e7bb4b0c8a78d4113ce9.jar , 211307
Bluetooth4_3/bin/dexedLibs/android-support-v4-bcd3d5a754016d41cbb9ebf6ce42c0af.jar , 211326
Bluetooth4_3/bin/jarlist.cache , 120
Bluetooth4_3/bin/res/crunch/drawable-hdpi/ic_launcher.png , 723
Bluetooth4_3/bin/res/crunch/drawable-mdpi/ic_launcher.png , 573
Bluetooth4_3/bin/res/crunch/drawable-xhdpi/ic_launcher.png , 878
Bluetooth4_3/bin/res/crunch/drawable-xxhdpi/ic_launcher.png , 1121
Bluetooth4_3/bin/res/drawable-hdpi/ic_launcher.png , 723
Bluetooth4_3/bin/res/drawable-mdpi/ic_launcher.png , 573
Bluetooth4_3/bin/res/drawable-xhdpi/ic_launcher.png , 878
Bluetooth4_3/bin/res/drawable-xxhdpi/ic_launcher.png , 1121
Bluetooth4_3/bin/resources.ap_ , 11702
Bluetooth4_3/gen/com/example/bluetooth/le/BuildConfig.java , 166
Bluetooth4_3/gen/com/example/bluetooth/le/R.java , 4081
Bluetooth4_3/ic_launcher-web.png , 5451
Bluetooth4_3/libs/android-support-v4.jar , 556198
Bluetooth4_3/proguard-project.txt , 781
Bluetooth4_3/project.properties , 563
Bluetooth4_3/res/drawable-hdpi/ic_launcher.png , 642
Bluetooth4_3/res/drawable-mdpi/ic_launcher.png , 510
Bluetooth4_3/res/drawable-xhdpi/ic_launcher.png , 809
Bluetooth4_3/res/drawable-xxhdpi/ic_launcher.png , 1153
Bluetooth4_3/res/layout/actionbar_indeterminate_progress.xml , 942
Bluetooth4_3/res/layout/activity_main.xml , 658
Bluetooth4_3/res/layout/gatt_services_characteristics.xml , 3389
Bluetooth4_3/res/layout/listitem_device.xml , 1266
Bluetooth4_3/res/menu/gatt_services.xml , 1265
Bluetooth4_3/res/menu/main.xml , 1276
Bluetooth4_3/res/values/dimens.xml , 220
Bluetooth4_3/res/values/strings.xml , 1662
Bluetooth4_3/res/values/styles.xml , 697
Bluetooth4_3/res/values-sw600dp/dimens.xml , 203
Bluetooth4_3/res/values-sw720dp-land/dimens.xml , 277
Bluetooth4_3/res/values-v11/styles.xml , 334
Bluetooth4_3/res/values-v14/styles.xml , 391
Bluetooth4_3/src/com/example/bluetooth/le/BluetoothLeService.java , 12959
Bluetooth4_3/src/com/example/bluetooth/le/DeviceControlActivity.java , 13761
Bluetooth4_3/src/com/example/bluetooth/le/DeviceScanActivity.java , 9107
Bluetooth4_3/src/com/example/bluetooth/le/MainActivity.java , 576
Bluetooth4_3/src/com/example/bluetooth/le/SampleGattAttributes.java , 1677