Hello.
I would like to ask about writing data from Smartphone to Thingy. How to change characteristic using setOnCheckedChangeListener.
Is it correct way to change characteristics values?
ToggleButton tog_red2 = (ToggleButton) findViewById(R.id.toggleButton8);
tog_red2.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
if(b)
{
color=6;
}
if(b==false)
{
color=7;
}
bluetoothGatt=devicesDiscovered.get(0).connectGatt(MainActivity.this,false, gattCallback); //connecting with Thingy
}
});
public BluetoothGattCallback gattCallback = new BluetoothGattCallback() {
@Override
public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
super.onConnectionStateChange(gatt, status, newState);
//Log.d("Connect", newState+"");
}
@Override
public void onServicesDiscovered(BluetoothGatt gatt, int status) {
super.onServicesDiscovered(gatt, status);
UUID SERVICE_UUID=UUID.fromString ("6E400001-B5A3-F393-E0A9-E50E24DCCA9E");
UUID CHARACTERISTIC_UUID_TX=UUID.fromString ("6E400002-B5A3-F393-E0A9-E50E24DCCA9E");
BluetoothGattService service = gatt.getService(SERVICE_UUID);
BluetoothGattCharacteristic characteristic = service.getCharacteristic(CHARACTERISTIC_UUID_TX);
if(color==6)
{
characteristic.setValue(data_breath_red);
gatt.writeCharacteristic(characteristic); //albo to albo to niżej
}
if (color==7)
{
characteristic.setValue(data_breath_blue);
gatt.writeCharacteristic(characteristic); //albo to albo to niżej
}
...
in this case every time when I want to send data need to connect again.
I think that it is not good idea but don't have idea how to do that in another way.
