I have an app which is working in background. I use CBPeripheralManager to Advertising and CBCentralManager to scan. I use two ıos (IOS 11.3 and IOS 13.4.1) device. First one is advertising foreground and background. Second one is scan foreground and background. I can scan;
App in the background, phone is unlocked - Works perfect
App in background, phone is locked, screen is lighted - Works perfect
App in background, phone locked, screen is off - Doesn't work!
/* I check it Advertising app which run background show in Android Device */
What is the problem. Please let me know. How can solve this problem? I want to scan both in background. My code is given bellow;
let scanOptions = [
CBCentralManagerScanOptionAllowDuplicatesKey: NSNumber(value: true)
]
let services = [CBUUID(string: "e2c56db5-dffb-48d2-b060-d0f5a71096e0")]
let advertisingData = [
CBAdvertisementDataLocalNameKey: "xxx",
CBAdvertisementDataServiceUUIDsKey:[CBUUID(string: "e2c56db5-dffb-48d2-b060-d0f5a71096e0")]
] as [String : Any]
func initLocal() {
peripheralManager = CBPeripheralManager(delegate: self, queue: nil, options: nil)
cbCentralManager = CBCentralManager(delegate: self, queue: nil,options: nil)
}
func peripheralManagerDidUpdateState(_ peripheral: CBPeripheralManager) {
if peripheral.state == .poweredOn {
peripheralManager.startAdvertising(advertisingData)
}
else if peripheral.state == .poweredOff {
peripheralManager.stopAdvertising()
}
}
func centralManagerDidUpdateState(_ central: CBCentralManager) {
if central.state == .poweredOn{
central.scanForPeripherals(withServices: services,options:scanOptions)
print("scanning...")
}
else {
print("Bluetooth is not active")
}
}
func centralManager(_ central: CBCentralManager,didDiscover peripheral: CBPeripheral,advertisementData: [String : Any],
rssi RSSI: NSNumber)
{
print("RSSI : \(RSSI)")
}
This is my info.plist;
