/**
* 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;
}
public boolean isConnect() {
boolean isRet = true;
if (mBluetoothGatt == null || !mBluetoothGatt.connect()) {
isRet = false;
}
return isRet;
}
@Override
public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
System.err.println(
"onConnectionStateChange: "
+ gatt
+ ", status: "
+ status
+ ", newState: "
+ newState);
System.err.println("STATUS_SUCCESS:" + BluetoothGatt.GATT_SUCCESS);
System.err.println(
"STATE_CONNECTED: "
+ BluetoothProfile.STATE_CONNECTED
+ ", STATE_DISCONNECTED: "
+ BluetoothProfile.STATE_DISCONNECTED);
if (gatt != btGatt) {
System.err.println("gatt(" + gatt + ") != btGatt (" + btGatt + ")");
return;
}
if (mIsConnecting) {
if (newState == BluetoothProfile.STATE_CONNECTED) {
boolean res = btGatt.discoverServices();
System.err.println("discoverServices() => " + res);
return;
} else {
boolean res = btGatt.connect();
System.err.println("disconnect while connecting => btGatt.connect() => " + res);
return;
}
}
if (mIsDisconnecting) {
System.err.println("mIsDisconnecting => notify");
synchronized (this) {
btGatt.close();
btGatt = null;
this.notifyAll();
return;
}
}
if (newState == BluetoothProfile.STATE_DISCONNECTED) {
reportDisconnected();
return;
}
System.err.println("onConnectionStateChange => WHAT TO DO??");
}
public boolean reConnect() {
if (mBluetoothAdapter == null || mDevice == null) {
LogUtil.info(TAG, "BluetoothAdapter not initialized or unspecified address.");
return false;
}
// if (mBluetoothDeviceAddress != null &&
// address.equals(mBluetoothDeviceAddress) && mBluetoothGatt != null) {
// LogUtil.info(TAG,
// "Trying to use an existing mBluetoothGatt for connection.");
// if (mBluetoothGatt.connect()) {
// mConnectionState = STATE_CONNECTING;
// return true;
// } else {
// return false;
// }
// }
// We want to directly connect to the device, so we are setting the
// autoConnect
// parameter to false.
mBluetoothGatt = mDevice.connectGatt(BluetoothLeService.this, true, mGattCallback);
LogUtil.info(TAG, "Trying to reConnect.");
if (mDevice.getName().equals(BLEConstants.TYPE_FATSCALE_DEVICE_NAME)) {
DEVICE_TYPE = 1;
} else if (mDevice.getName().equals(BLEConstants.TYPE_BLOODPRESSURE_DEVICE_NAME)) {
DEVICE_TYPE = 2;
} else if (mDevice.getName().equals(BLEConstants.TYPE_BLOODSUGAR_DEVICE_NAME)) {
DEVICE_TYPE = 3;
}
if (mBluetoothGatt != null) {
if (mBluetoothGatt.connect()) {
mConnectionState = STATE_CONNECTING;
LogUtil.info(TAG, "Trying to reConnect. ok.");
return true;
} else {
return false;
}
}
return false;
}
// ----------------------------------------------------------------------------------------------------------------
// Open a BluetoothGatt connection to a BLE device given its address
public boolean connect(final String address) {
if (mBluetoothAdapter == null
|| address == null) { // Check that we have a Bluetooth adappter and device address
Log.w(
TAG,
"BluetoothAdapter not initialized or unspecified address."); // Log a warning that
// something went wrong
return false; // Failed to connect
}
// Previously connected device. Try to reconnect.
if (mBluetoothDeviceAddress != null
&& address.equals(mBluetoothDeviceAddress)
&& mBluetoothGatt != null) { // See if there was previous connection to the device
Log.d(TAG, "Trying to use an existing mBluetoothGatt for connection.");
if (mBluetoothGatt
.connect()) { // See if we can connect with the existing BluetoothGatt to connect
return true; // Success
} else {
return false; // Were not able to connect
}
}
final BluetoothDevice device =
mBluetoothAdapter.getRemoteDevice(
address); // No previous device so get the Bluetooth device by referencing its address
if (device == null) { // Check whether a device was returned
Log.w(TAG, "Device not found. Unable to connect."); // Warn that something went wrong
return false; // Failed to find the device
}
mBluetoothGatt =
device.connectGatt(
this, false, mGattCallback); // Directly connect to the device so autoConnect is false
Log.d(TAG, "Trying to create a new connection.");
mBluetoothDeviceAddress =
address; // Record the address in case we bneed to reconnect with the existing BluetoothGatt
return true;
}