Example usage for android.bluetooth BluetoothGattService getCharacteristic

Introduction

In this page you can find the example usage for android.bluetooth BluetoothGattService getCharacteristic.

Prototype

public BluetoothGattCharacteristic getCharacteristic(UUID uuid) 

Source Link

Document

Returns a characteristic with a given UUID out of the list of characteristics offered by this service.

Usage

From source file:com.sdingba.su.alphabet_demotest.view.lanya.UartService.java

/**
 * Enable TXNotification// ww w  .j  av a2  s  .  com
 *
 * @return
 */
public void enableTXNotification() {
    Log.d(TAG, "SDingBaLanYan : enableTXNotification ");
    if (mBluetoothGatt == null) {
        showMessage("mBluetoothGatt(is null) = null" + mBluetoothGatt);

        broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
        return;
    }

    BluetoothGattService RxService = mBluetoothGatt.getService(RX_SERVICE_UUID);
    if (RxService == null) {
        showMessage("Rx service not found!---RX_SERVICE_UUID");
        broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
        return;
    }
    BluetoothGattCharacteristic TxChar = RxService.getCharacteristic(TX_CHAR_UUID);
    if (TxChar == null) {
        showMessage("==Tx== charateristic not found!");
        broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
        return;
    }

    mBluetoothGatt.setCharacteristicNotification(TxChar, true);

    BluetoothGattDescriptor descriptor = TxChar.getDescriptor(CCCD);
    descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);

    mBluetoothGatt.writeDescriptor(descriptor);

}

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From source file:com.example.UART.UartService.java

@SuppressLint("NewApi")
public void writeRXCharacteristic(byte[] value) {

    BluetoothGattService RxService = mBluetoothGatt.getService(RX_SERVICE_UUID);
    showMessage("mBluetoothGatt null" + mBluetoothGatt);
    if (RxService == null) {
        showMessage("Rx service not found!");
        broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
        return;//from   ww  w  .  j  av  a  2s.  com
    }
    BluetoothGattCharacteristic RxChar = RxService.getCharacteristic(RX_CHAR_UUID);
    if (RxChar == null) {
        showMessage("Rx charateristic not found!");
        broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
        return;
    }
    RxChar.setValue(value);
    boolean status = mBluetoothGatt.writeCharacteristic(RxChar);

    Log.d(TAG, "write TXchar - status=" + status);
}

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From source file:de.blinkt.openvpn.bluetooth.service.UartService.java

/**
 * When the device is bonded and has the Generic Attribute service and the Service Changed characteristic this method enables indications on this characteristic.
 * In case one of the requirements is not fulfilled this method returns <code>false</code>.
 *
 * @return <code>true</code> when the request has been sent, <code>false</code> when the device is not bonded, does not have the Generic Attribute service, the GA service does not have
 * the Service Changed characteristic or this characteristic does not have the CCCD.
 *///from  www . jav a2s .co m
public boolean ensureServiceChangedEnabled() {
    final BluetoothGatt gatt = mBluetoothGatt;
    if (gatt == null)
        return false;

    // The Service Changed indications have sense only on bonded devices
    final BluetoothDevice device = gatt.getDevice();
    if (device.getBondState() != BluetoothDevice.BOND_BONDED)
        return false;

    final BluetoothGattService gaService = gatt.getService(GENERIC_ATTRIBUTE_SERVICE);
    if (gaService == null)
        return false;

    final BluetoothGattCharacteristic scCharacteristic = gaService
            .getCharacteristic(SERVICE_CHANGED_CHARACTERISTIC);
    return scCharacteristic != null;
}

---

From source file:com.example.kevin.health.ble.UartService.java

public void writeRXCharacteristic(byte[] value) {
    BluetoothGattService RxService = mBluetoothGatt.getService(RX_SERVICE_UUID);

    showMessage("mBluetoothGatt null" + mBluetoothGatt);

    if (RxService == null) {
        showMessage("Rx service not found!");
        broadcastUpdate(DEVICE_DOES_NOT_SUPPORT);
        return;/*from  w  w  w . j a va2 s  .  c  o  m*/
    }
    BluetoothGattCharacteristic RxChar = RxService.getCharacteristic(RX_CHAR_UUID);
    if (RxChar == null) {
        showMessage("Rx charateristic not found!");
        broadcastUpdate(DEVICE_DOES_NOT_SUPPORT);
        return;
    }
    RxChar.setValue(value);
    boolean status = mBluetoothGatt.writeCharacteristic(RxChar);

    Log.d(TAG, "write TXchar - status=" + status);
}

---

From source file:com.cqupt.sensor_ble.activity.UartService.java

/**
 * ???/*w  w  w  .  j  a va  2s.co m*/
 *
 * @param value value
 */
public void writeRXCharacteristic(byte[] value) {

    BluetoothGattService RxService = mBluetoothGatt.getService(RX_SERVICE_UUID);
    if (RxService == null) {
        showMessage("Rx service not found!");
        broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
        return;
    }
    BluetoothGattCharacteristic RxChar = RxService.getCharacteristic(RX_CHAR_UUID);
    if (RxChar == null) {
        showMessage("Rx characteristic not found!");
        broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
        return;
    }
    RxChar.setValue(value);
    boolean status = mBluetoothGatt.writeCharacteristic(RxChar);

    Log.d(TAG, "write TXChar - status=" + status);
}

---

From source file:com.chenls.smartlock.UartService.java

/**
 * ???/*ww  w.  j a v a2s  .c om*/
 *
 * @param value
 */
public void writeRXCharacteristic(byte[] value) {

    BluetoothGattService RxService = mBluetoothGatt.getService(RX_SERVICE_UUID);
    if (RxService == null) {
        showMessage("Rx service not found!");
        broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
        return;
    }
    BluetoothGattCharacteristic RxChar = RxService.getCharacteristic(RX_CHAR_UUID);
    if (RxChar == null) {
        showMessage("Rx charateristic not found!");
        broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
        return;
    }
    RxChar.setValue(value);
    boolean status = mBluetoothGatt.writeCharacteristic(RxChar);

    Log.d(TAG, "write TXchar - status=" + status);
}

---

From source file:com.cqupt.sensor_ble.activity.UartService.java

/**
 * ?/*from  w ww  .  j a  v a 2s  .c  o  m*/
 * Enable TXNotification
 */
public void enableTXNotification() {

    if (mBluetoothGatt == null) {
        showMessage("mBluetoothGatt null");
        broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
        return;
    }

    BluetoothGattService RxService = mBluetoothGatt.getService(RX_SERVICE_UUID);
    if (RxService == null) {
        showMessage("Rx service not found!");
        broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
        return;
    }
    BluetoothGattCharacteristic TxChar = RxService.getCharacteristic(TX_CHAR_UUID);
    if (TxChar == null) {
        showMessage("Tx characteristic not found!");
        broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
        return;
    }
    //characteristic??
    mBluetoothGatt.setCharacteristicNotification(TxChar, true);

    BluetoothGattDescriptor descriptor = TxChar.getDescriptor(CCCD);
    descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
    mBluetoothGatt.writeDescriptor(descriptor);

}

---

From source file:com.chenls.smartlock.UartService.java

/**
 * ?//  www.j  a v  a 2s  .c o m
 * Enable TXNotification
 *
 * @return
 */
public void enableTXNotification() {

    if (mBluetoothGatt == null) {
        showMessage("mBluetoothGatt null" + mBluetoothGatt);
        broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
        return;
    }

    BluetoothGattService RxService = mBluetoothGatt.getService(RX_SERVICE_UUID);
    if (RxService == null) {
        showMessage("Rx service not found!");
        broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
        return;
    }
    BluetoothGattCharacteristic TxChar = RxService.getCharacteristic(TX_CHAR_UUID);
    if (TxChar == null) {
        showMessage("Tx charateristic not found!");
        broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
        return;
    }
    //characteristic??
    mBluetoothGatt.setCharacteristicNotification(TxChar, true);

    BluetoothGattDescriptor descriptor = TxChar.getDescriptor(CCCD);
    descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
    mBluetoothGatt.writeDescriptor(descriptor);

}

---

From source file:com.example.kevin.health.UartService.java

public void writeRXCharacteristic(byte[] value) {
    if (mBluetoothGatt != null) {
        BluetoothGattService RxService = mBluetoothGatt.getService(RX_SERVICE_UUID);

        showMessage("mBluetoothGatt null" + mBluetoothGatt);

        if (RxService == null) {
            showMessage("Rx service not found!");
            broadcastUpdate(DEVICE_DOES_NOT_SUPPORT);
            return;
        }/* w ww .  j  av  a2 s  .  c om*/
        BluetoothGattCharacteristic RxChar = RxService.getCharacteristic(RX_CHAR_UUID);
        if (RxChar == null) {
            showMessage("Rx charateristic not found!");
            broadcastUpdate(DEVICE_DOES_NOT_SUPPORT);
            return;
        }
        RxChar.setValue(value);
        boolean status = mBluetoothGatt.writeCharacteristic(RxChar);

        Log.d(TAG, "write TXchar - status=" + status);
    }
}

---

From source file:com.nordicsemi.UART_UDP_PROXY.UartService.java

public void writeRXCharacteristic(byte[] value) {

    BluetoothGattService RxService = mBluetoothGatt.getService(RX_SERVICE_UUID);
    showMessage("mBluetoothGatt null" + mBluetoothGatt);
    if (RxService == null) {
        showMessage("Rx service not found!");
        broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
        return;//from  w w w  . j a  v  a2s  .co  m
    }
    BluetoothGattCharacteristic RxChar = RxService.getCharacteristic(RX_CHAR_UUID);
    if (RxChar == null) {
        showMessage("Rx charateristic not found!");
        broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
        return;
    }
    RxChar.setValue(value);
    boolean status = mBluetoothGatt.writeCharacteristic(RxChar);

    Log.d(TAG, "write RXchar - status=" + status);
}

---

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