What are performance tuning for Core Bluetooth in Swift?

Performance tuning for Core Bluetooth in Swift is essential for improving the efficiency of Bluetooth operations and ensuring a smooth user experience. Here we outline several strategies that can help optimize your Core Bluetooth implementations.

1. Optimize Scanning

Reduce the frequency of scanning and use the appropriate service UUIDs to limit the number of devices being scanned. This reduces resource consumption and improves performance.

2. Connection Management

Manage your connections efficiently by keeping a limited number of active connections. Monitor the signal strength and battery levels of connected peripherals, and disconnect those that are not optimal.

3. Backgrounding

Ensure that your app manages background tasks properly, as this can affect Bluetooth performance. Utilize the background modes correctly to maintain a stable connection even when the app is not active.

4. Queue Management

Manage the write and read requests using a serial queue to minimize conflicts and delays in data transfer.

5. Handshake Optimization

Minimize the number of handshakes by combining write operations when possible, and ensure that the peripheral is ready before sending data.

Example:

    func startScanning() {
        let serviceUUIDs: [CBUUID] = [CBUUID(string: "YOUR_SERVICE_UUID")]
        centralManager.scanForPeripherals(withServices: serviceUUIDs, options: [CBCentralManagerScanOptionAllowDuplicatesKey: false])
        print("Scanning started")
    }