Quick Bluetooth Connectivity

[ahsan737]

Currently, I am performing a scan for nearby Bluetooth using the followings:

agent = new QBluetoothDeviceDiscoveryAgent;
    connect(agent, SIGNAL(deviceDiscovered(QBluetoothDeviceInfo)),
            this, SLOT(deviceDiscovered(QBluetoothDeviceInfo)));
    agent->start();

and then the app tries to connect user-selected BT when discovery finished signal is emitted.

connect(agent, &QBluetoothDeviceDiscoveryAgent::finished, this, &bluetooth_server::connectToDevice);

this takes too long to connect, how can I make it quick and efficient?

[hetalik]

What do you mean by too long: a few seconds?

[hetalik]

Ah, I see what you are doing here.
When does the user select the device: before or after the discovery?
If it's before discovery, no need to do a discovery at all. Connect immediately.
If during the discovery, no need to wait for finished() at all, connect as soon as user selects it (stop the discovery first) .