Question

基本上我有两个应用程序，一个用于扫描蓝牙设备，另一个用于广告，我想要做的是获取所有iOS设备的列表，在我的应用程序附近扫描iOS设备

到目前为止，这是我的代码：

Scanning.m：

// Scan for all available CoreBluetooth LE devices
    NSDictionary *scanOptions = @{CBCentralManagerScanOptionAllowDuplicatesKey:@(YES)};
    NSArray *services = @[[CBUUID UUIDWithString:@"1CC024D6-E413-4B56-993C-831CAF033366"]];

    [self.centralManager scanForPeripheralsWithServices:services options:scanOptions];

- (void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber *)RSSI
{
    NSLog(@"RSSI: %d", [RSSI intValue]);

}

// method called whenever the device state changes.
- (void)centralManagerDidUpdateState:(CBCentralManager *)central
{
    // Determine the state of the peripheral
    if ([central state] == CBCentralManagerStatePoweredOff) {
        NSLog(@"CoreBluetooth BLE hardware is powered off");
    }
    else if ([central state] == CBCentralManagerStatePoweredOn) {
        NSLog(@"CoreBluetooth BLE hardware is powered on and ready");
    }
    else if ([central state] == CBCentralManagerStateUnauthorized) {
        NSLog(@"CoreBluetooth BLE state is unauthorized");
    }
    else if ([central state] == CBCentralManagerStateUnknown) {
        NSLog(@"CoreBluetooth BLE state is unknown");
    }
    else if ([central state] == CBCentralManagerStateUnsupported) {
        NSLog(@"CoreBluetooth BLE hardware is unsupported on this platform");
    }
}

Advertising.m：

    self.peripheralManager = [[CBPeripheralManager alloc] initWithDelegate:self queue:nil];
    [self listenForRelays];


    /** Required protocol method.  A full app should take care of all the possible states,
 *  but we're just waiting for  to know when the CBPeripheralManager is ready
 */
- (void)peripheralManagerDidUpdateState:(CBPeripheralManager *)peripheral
{

    if (peripheral.state == CBPeripheralManagerStatePoweredOn)
    {

        // We're in CBPeripheralManagerStatePoweredOn state...
        NSLog(@"self.peripheralManager powered on.");

        // ... so build our service.

    }
}


-(void) listenForRelays {

    if(self.peripheralManager.state == CBPeripheralManagerStatePoweredOn)
    {

        NSDictionary *advertisingData = @{CBAdvertisementDataLocalNameKey:@"my-peripheral",
                                          CBAdvertisementDataServiceUUIDsKey:@[[CBUUID UUIDWithString:@"1CC024D6-E413-4B56-993C-831CAF033322"]]};

        // Start advertising over BLE
        [self.peripheralManager startAdvertising:advertisingData];
    }

}

当我在不同的iphone上运行不同的应用程序时，没有任何反应！

这不会崩溃，但didDiscoverPeripheral永远不会被调用:(请帮帮我！是的，我已经完成了文档，但仍然没有好处：（（

欢呼声

Answer 1

在处于开机状态之前，您无法启动扫描 - 使用扫描应用中的代码与广告应用中的代码类似。

在iOS 7中，在开机之前启动扫描会在控制台上发出警告，但它仍然有效。在iOS 8中，它不起作用。

广告另一个iOS设备后没有调用didDiscoverPeripheral

1 个答案: