搜索、通讯均正常，只是连接不正常
public void onCreate(){
super.onCreate();
// Initializes a Bluetooth adapter. For API level 18 and above, get a reference to
// BluetoothAdapter through BluetoothManager.
final BluetoothManager bluetoothManager =
(BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
mBluetoothAdapter = bluetoothManager.getAdapter();
// Checks if Bluetooth is supported on the device.
if (mBluetoothAdapter == null) {
Toast.makeText(this, "没有蓝牙", Toast.LENGTH_SHORT).show();
stopSelf();
return;
}
if(!getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE)){
Toast.makeText(this, "不支持BLE", Toast.LENGTH_SHORT).show();
stopSelf();
return;
}
}
@Override
public void onDestroy(){
if(mBluetoothGatt != null){
mBluetoothGatt.close();
}
mBluetoothGatt = null;
super.onDestroy();
}
@Override
public boolean onUnbind(Intent intent){
if(mBluetoothGatt != null){
mBluetoothGatt.close();
}
mBluetoothGatt = null;
return super.onUnbind(intent);
}
// Device scan callback.
private BluetoothAdapter.LeScanCallback mLeScanCallback =
new BluetoothAdapter.LeScanCallback() {
@Override
public void onLeScan(final BluetoothDevice device, final int rssi, final byte[] scanRecord) {
String str = device.getName() + "|" + device.getAddress();
LogUtil.d(TAG, "get BluetoothDevice.ACTION_FOUND:" + str);
sendLocalBroadcast(ACTION_SCAN_FOUND,str);
}
};
public void startScan(){
Handler mHandler = new Handler();
mHandler.postDelayed(new Runnable() {
@Override
public void run() {
stopScan();
}
},SCAN_PERIOD );
LogUtil.d(TAG, "get startScan");
mScanning = true;
mBluetoothAdapter.startLeScan(mLeScanCallback);
sendLocalBroadcast(ACTION_SCAN_STARTED);
}
public void stopScan(){
if(mScanning){
LogUtil.d(TAG, "get stopScan");
mScanning = false;
mBluetoothAdapter.stopLeScan(mLeScanCallback);
sendLocalBroadcast(ACTION_SCAN_FINISHED);
}
}
public void findService(List<BluetoothGattService> gattServices)
{
Log.i(TAG, "Count is:" + gattServices.size());
for (BluetoothGattService gattService : gattServices)
{
Log.i(TAG, gattService.getUuid().toString());
Log.i(TAG, UUID_SERVICE.toString());
if(gattService.getUuid().toString().equalsIgnoreCase(UUID_SERVICE.toString()))
{
List<BluetoothGattCharacteristic> gattCharacteristics =
gattService.getCharacteristics();
Log.i(TAG, "Count is:" + gattCharacteristics.size());
for (BluetoothGattCharacteristic gattCharacteristic :
gattCharacteristics)
{
if(gattCharacteristic.getUuid().toString().equalsIgnoreCase(UUID_NOTIFY.toString()))
{
Log.i(TAG, gattCharacteristic.getUuid().toString());
Log.i(TAG, UUID_NOTIFY.toString());
mNotifyCharacteristic = gattCharacteristic;
setCharacteristicNotification(gattCharacteristic, true);
//broadcastUpdate(ACTION_GATT_SERVICES_DISCOVERED);
return;
}
}
}
}
}
// Implements callback methods for GATT events that the app cares about. For example,
// connection change and services discovered.
//设备连接
private final BluetoothGattCallback mGattCallback = new BluetoothGattCallback() {
@Override
public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
String intentAction;
Log.i(TAG, "oldStatus=" + status + " NewStates=" + newState);
if(status == BluetoothGatt.GATT_SUCCESS)
{
if (newState == BluetoothProfile.STATE_CONNECTED) {
intentAction = ACTION_CONNECTED;
sendLocalBroadcast(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_DISCONNECTED;
mBluetoothGatt.close();
mBluetoothGatt = null;
Log.i(TAG, "Disconnected from GATT server.");
sendLocalBroadcast(intentAction);
}
}
}
//发现服务
@Override
public void onServicesDiscovered(BluetoothGatt gatt, int status) {
if (status == BluetoothGatt.GATT_SUCCESS) {
Log.w(TAG, "onServicesDiscovered received: " + status);
findService(gatt.getServices());
} else {
if(mBluetoothGatt.getDevice().getUuids() == null)
Log.w(TAG, "onServicesDiscovered received: " + status);
}
}
@Override
public void onCharacteristicRead(BluetoothGatt gatt,
BluetoothGattCharacteristic characteristic,
int status) {
if (status == BluetoothGatt.GATT_SUCCESS) {
byte[] bufRecv = characteristic.getValue();
int nRecv = bufRecv.length;
if(nRecv > 1024 + nReadPtr - nRecvPtr)
nRecv = 1024 + nReadPtr - nRecvPtr;
if(nRecv + nRecvPtr <= 1024){
System.arraycopy(bufRecv, 0, bRecv, nRecvPtr, nRecv);
nRecvPtr += nRecv;
}
else{
System.arraycopy(bufRecv, 0, bRecv, nRecvPtr, 1024-nRecvPtr);
System.arraycopy(bufRecv, 1024-nRecvPtr, bRecv, 0, nRecv - (1024-nRecvPtr));
nRecvPtr = nRecv - (1024 - nRecvPtr);
}
sendLocalBroadcast(ACTION_DATA_RECV);
}
}
/**
* 发送数据后的回调
* @param gatt
* @param characteristic
* @param status
*/
@Override
public void onCharacteristicWrite(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic,
int status)
{
Log.e(TAG, "OnCharacteristicWrite");
}
@Override
public void onDescriptorRead(BluetoothGatt gatt,
BluetoothGattDescriptor bd,
int status) {
Log.e(TAG, "onDescriptorRead");
}
@Override
public void onCharacteristicChanged(BluetoothGatt gatt,
BluetoothGattCharacteristic characteristic) {
byte[] bufRecv = characteristic.getValue();
int nRecv = bufRecv.length;
if(nRecv > 1024 + nReadPtr - nRecvPtr)
nRecv = 1024 + nReadPtr - nRecvPtr;
if(nRecv + nRecvPtr <= 1024){
System.arraycopy(bufRecv, 0, bRecv, nRecvPtr, nRecv);
nRecvPtr += nRecv;
}
else{
System.arraycopy(bufRecv, 0, bRecv, nRecvPtr, 1024-nRecvPtr);
System.arraycopy(bufRecv, 1024-nRecvPtr, bRecv, 0, nRecv - (1024-nRecvPtr));
nRecvPtr = nRecv - (1024 - nRecvPtr);
}
sendLocalBroadcast(ACTION_DATA_RECV);
Log.e(TAG, "onCharacteristicChanged");
}
@Override
public void onDescriptorWrite(BluetoothGatt gatt,
BluetoothGattDescriptor bd,
int status) {
Log.e(TAG, "onDescriptorWrite");
}
@Override
public void onReadRemoteRssi(BluetoothGatt gatt, int a, int b)
{
Log.e(TAG, "onReadRemoteRssi");
}
@Override
public void onReliableWriteCompleted(BluetoothGatt gatt, int a)
{
Log.e(TAG, "onReliableWriteCompleted");
}
@Override
public void onMtuChanged(BluetoothGatt gatt, int mtu, int status) {
Log.e(TAG, "onMtuChanged");
}
};
public boolean connect(final String address){
if (mBluetoothAdapter == null || address == null) {
Log.w(TAG, "BluetoothAdapter not initialized or unspecified address.");
return false;
}
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.
if(mBluetoothGatt != null)
{
mBluetoothGatt.close();
mBluetoothGatt = null;
}
mBluetoothGatt = device.connectGatt(this, false, mGattCallback);
Log.d(TAG, "Trying to create a new connection.");
return true;
}
public void disconnect(){
if (mBluetoothAdapter == null || mBluetoothGatt == null) {
Log.w(TAG, "BluetoothAdapter not initialized");
return;
}
mBluetoothGatt.disconnect();
}
@Override
public int read(byte[] data) {
int readLen = data.length;
int bufLen;
int retLen;
if(nRecvPtr >= nReadPtr)
bufLen = nRecvPtr - nReadPtr;
else
bufLen = nRecvPtr + 1024 - nReadPtr;
if(readLen <= bufLen)
retLen = readLen;
else
retLen = bufLen;
if(nReadPtr + retLen < 1024){
System.arraycopy(bRecv, nReadPtr, data,0,retLen);
nReadPtr += retLen;
}
else{
System.arraycopy(bRecv, nReadPtr, data, 0, 1024-nReadPtr);
System.arraycopy(bRecv, 0, data, 1024-nReadPtr, retLen - (1024-nReadPtr));
nReadPtr = retLen-(1024-nReadPtr);
}
return retLen;
}
public byte[] write(byte[] data){
mNotifyCharacteristic.setValue(data/*strValue.getBytes()*/);
mBluetoothGatt.writeCharacteristic(mNotifyCharacteristic);
LogUtil.i(TAG, "12154123164512332465451218451231654561233545612");
//return data.length;
return data;
}
public final void onCharacteristicChanged(final BluetoothGatt gatt, final BluetoothGattCharacteristic characteristic) {
byte[] value = characteristic.getValue();
Log.d(TAG, "onCharacteristicChanged: " + value);
String s0 = Integer.toHexString(value[0] & 0xFF);
String s = Integer.toHexString(value[1] & 0xFF);
Log.d(TAG, "onCharacteristicChanged: " + s0 + "、" + s);
for (byte b : value) {
Log.d(TAG, "onCharacteristicChanged: " + b);
}
}
/**
* 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();
}
}