Hello.
After connection establishing i would like to doscover services.
I read here:
that need to add 600ms delay before "gatt.discoverServices();"
private final BluetoothGattCallback gattCallback = new BluetoothGattCallback() {
@Override
public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
super.onConnectionStateChange(gatt, status, newState);
Log.d("Connection", newState+"");
Toast.makeText(context, newState+"", Toast.LENGTH_SHORT).show();
//Here is the place for 600ms delay
try {
Thread.sleep(600);
} catch (InterruptedException e) {
e.printStackTrace();
}
gatt.discoverServices();
}
@Override
public void onServicesDiscovered(BluetoothGatt gatt, int status) {
super.onServicesDiscovered(gatt, status);
List <BluetoothGattService> services = gatt.getServices();
Log.d("services","Services ");
//gatt.readCharacteristic(services.get(1).getCharacteristics().get(0));
}
@Override
public void onCharacteristicRead(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status) {
super.onCharacteristicRead(gatt, characteristic, status);
//Log.d("czy_polaczono", "Charakterystyki: " +characteristic.toString());
}
@Override
public void onCharacteristicWrite(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status) {
super.onCharacteristicWrite(gatt, characteristic, status);
}
@Override
public void onCharacteristicChanged(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic) {
super.onCharacteristicChanged(gatt, characteristic);
// Log.d("czy_polaczono", "Charakterystyki: " +characteristic.toString());
}
};
I tried with and without delay but it did not work. Does anybody have a knowledge how to fix this?
