Hello,
I need your help, please review the following description and help to let me know the method to solve the issue,
thankful for your support in advance,
the symptom is ,
when using google app for ble communication with nrf51822, and trying to communicate as a indicator mode,
I can't receive continuously after first touching in app in order to do indicate mode, after secondly touching in app, I can receive the data continuously,
why ?
I update the log, please help to review it,
first touch,
2018-11-19 16:26:59.344 13446-13446/com.example.android.bluetoothlegatt D/DeviceControlActivity: love PROPERTY_INDICATE
2018-11-19 16:26:59.347 13446-13446/com.example.android.bluetoothlegatt D/BluetoothLeService: love setCharacteristicIndication END
2018-11-19 16:26:59.347 13446-13446/com.example.android.bluetoothlegatt D/DeviceControlActivity: love PROPERTY_WRITE
2018-11-19 16:26:59.403 13446-13460/com.example.android.bluetoothlegatt D/BluetoothLeService: love onCharacteristicRead.
2018-11-19 16:26:59.404 13446-13460/com.example.android.bluetoothlegatt D/BluetoothLeService: love RAW_DATA format UINT8.
2018-11-19 16:26:59.417 13446-13460/com.example.android.bluetoothlegatt D/BluetoothLeService: love broadcastUpdate sendBroadcast execution
second touch,
2018-11-19 16:27:13.713 13446-13446/com.example.android.bluetoothlegatt D/DeviceControlActivity: love PROPERTY_READ setCharacteristicIndication
2018-11-19 16:27:13.719 13446-13446/com.example.android.bluetoothlegatt D/BluetoothLeService: love setCharacteristicIndication END
2018-11-19 16:27:13.719 13446-13446/com.example.android.bluetoothlegatt D/DeviceControlActivity: love PROPERTY_INDICATE
2018-11-19 16:27:13.724 13446-13446/com.example.android.bluetoothlegatt D/BluetoothLeService: love setCharacteristicIndication END
2018-11-19 16:27:13.725 13446-13446/com.example.android.bluetoothlegatt D/DeviceControlActivity: love PROPERTY_WRITE
2018-11-19 16:27:13.802 13446-13499/com.example.android.bluetoothlegatt D/BluetoothLeService: love onCharacteristicChanged [B@3c4a623
2018-11-19 16:27:13.802 13446-13499/com.example.android.bluetoothlegatt D/BluetoothLeService: love RAW_DATA format UINT8.
2018-11-19 16:27:13.815 13446-13499/com.example.android.bluetoothlegatt D/BluetoothLeService: love broadcastUpdate sendBroadcast execution
2018-11-19 16:27:13.893 13446-13499/com.example.android.bluetoothlegatt D/BluetoothLeService: love onCharacteristicChanged [B@76b9720
2018-11-19 16:27:13.894 13446-13499/com.example.android.bluetoothlegatt D/BluetoothLeService: love RAW_DATA format UINT8.
thanks.
update the code,
private final ExpandableListView.OnChildClickListener servicesListClickListner =
new ExpandableListView.OnChildClickListener() {
@Override
public boolean onChildClick(ExpandableListView parent, View v, int groupPosition,
int childPosition, long id) {
if (mGattCharacteristics != null) {
final BluetoothGattCharacteristic characteristic =
mGattCharacteristics.get(groupPosition).get(childPosition);
final int charaProp = characteristic.getProperties();
if ((charaProp | BluetoothGattCharacteristic.PROPERTY_READ) > 0) {
// If there is an active notification on a characteristic, clear
// it first so it doesn't update the data field on the user interface.
if (mNotifyCharacteristic != null)
{
Log.d(TAG, "love PROPERTY_READ setCharacteristicNotification");
mBluetoothLeService.setCharacteristicNotification(
mNotifyCharacteristic, false);
mNotifyCharacteristic = null;
}
if (mIndicateCharacteristic != null)
{
Log.d(TAG, "love PROPERTY_READ setCharacteristicIndication");
mBluetoothLeService.setCharacteristicIndication(
mIndicateCharacteristic, false);
mIndicateCharacteristic = null;
}
mBluetoothLeService.readCharacteristic(characteristic);
}
// if ((charaProp | BluetoothGattCharacteristic.PROPERTY_NOTIFY) > 0)
if ( (characteristic.getProperties() & BluetoothGattCharacteristic.PROPERTY_NOTIFY) == BluetoothGattCharacteristic.PROPERTY_NOTIFY )
{
Log.d(TAG, "love PROPERTY_NOTIFY");
mNotifyCharacteristic = characteristic;
mBluetoothLeService.setCharacteristicNotification(
characteristic, false);
}
// if ((charaProp | BluetoothGattCharacteristic.PROPERTY_INDICATE) > 0)
if ( (characteristic.getProperties() & BluetoothGattCharacteristic.PROPERTY_INDICATE) == BluetoothGattCharacteristic.PROPERTY_INDICATE )
{
Log.d(TAG, "love PROPERTY_INDICATE");
mIndicateCharacteristic = characteristic;
mBluetoothLeService.setCharacteristicIndication(
characteristic, false);
}
if ((charaProp | BluetoothGattCharacteristic.PROPERTY_WRITE) > 0) {
Log.d(TAG, "love PROPERTY_WRITE");
if (UUID.fromString(SampleGattAttributes.THD_CONTROL_COMMAND).equals(characteristic.getUuid()))
{
if (mNotifyCharacteristic != null) {
mBluetoothLeService.setCharacteristicNotification(
mNotifyCharacteristic, false);
mNotifyCharacteristic = null;
}
if (mIndicateCharacteristic != null) {
mBluetoothLeService.setCharacteristicIndication(
mIndicateCharacteristic, false);
mIndicateCharacteristic = null;
}
mBluetoothLeService.writeCharacteristic(characteristic);//love_1022
}
}
return true;
}
return false;
}
};
and the code of service is,
/**
* 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);
if (UUID_THD_RAW_DATA_TRANSFER.equals(characteristic.getUuid()))
{
//love_0831 devzone.nordicsemi.com/.../android-enable-notification-client-side-cccd-uuid
final BluetoothGattDescriptor descriptor = characteristic.getDescriptor(
UUID.fromString("00002902-0000-1000-8000-00805f9b34fb"));
descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
mBluetoothGatt.writeDescriptor(descriptor);
}
}
public void setCharacteristicIndication(BluetoothGattCharacteristic characteristic,
boolean enabled) {//love_1022
if (mBluetoothAdapter == null || mBluetoothGatt == null) {
Log.w(TAG, "BluetoothAdapter not initialized");
return;
}
mBluetoothGatt.setCharacteristicNotification(characteristic, true);
if (UUID_THD_RAW_DATA_TRANSFER.equals(characteristic.getUuid()))
{
//love_0831 devzone.nordicsemi.com/.../android-enable-notification-client-side-cccd-uuid
final BluetoothGattDescriptor descriptor = characteristic.getDescriptor(
UUID.fromString("00002902-0000-1000-8000-00805f9b34fb"));
descriptor.setValue(BluetoothGattDescriptor.ENABLE_INDICATION_VALUE);
mBluetoothGatt.writeDescriptor(descriptor);
Log.d(TAG, "love setCharacteristicIndication END");
}
}
public void writeCharacteristic(BluetoothGattCharacteristic characteristic){
// Toast.makeText(getApplicationContext(),"THD_CONTROL_COMMAND",Toast.LENGTH_SHORT).show();
if (mBluetoothAdapter == null || mBluetoothGatt == null) {
Log.w(TAG, "writeCharacteristic BluetoothAdapter not initialized");
return;
}
flag_count++;
if((flag_count % 2) == 1)
SampleGattAttributes.test_flag = 1;
else if((flag_count % 2) == 0)
SampleGattAttributes.test_flag = 2;
Toast.makeText(getApplicationContext(),SampleGattAttributes.test_flag+" value",Toast.LENGTH_SHORT).show();
final int Thdvalue;
if(SampleGattAttributes.test_flag == 1)
{
Log.d(TAG, "love THD_CONTROL_COMMAND 1 SET OK\r\n");
Thdvalue = 1;//START,
characteristic.setValue(Thdvalue,BluetoothGattCharacteristic.FORMAT_SINT8, 0);
mBluetoothGatt.writeCharacteristic(characteristic);
}
else if(SampleGattAttributes.test_flag == 2)
{
Log.d(TAG, "love THD_CONTROL_COMMAND 0 SET ==> OK\r\n");
Thdvalue = 0;//STOP,
flag_count = 0;
characteristic.setValue(Thdvalue,BluetoothGattCharacteristic.FORMAT_SINT8, 0);
mBluetoothGatt.writeCharacteristic(characteristic);
((DeviceControlActivity)DeviceControlActivity.mContext).saveExcel("");//love_1018
}
}
