Question about Characteristic.setValue

[audetto]

I have used this app to receive MID messages from an iOS app.

I am now trying to send messages and I am struggling to understand some of the logic.
When I call BluetoothGattCharacteristic.setValue(), this only sets the local value, which only goes to the other side after they have tried to read it.

So one can call BluetoothGattServer.notifyCharacteristicChanged() to suggest a read operation.

So, my question is: the only way to be sure the data has been read (before I can write more), is to wait for the next BluetoothGattServerCallback.onCharacteristicReadRequest() call? Is it the way it is supposed to work?