iOS CoreBluetooth CBPeripheral didReceiveReadRequest

iOS CoreBluetooth CBPeripheral didReceiveReadRequest

我有两个项目。一个充当中心,另一个充当外围。 Central 已经连接到 peripheral,然后 central 调用方法readValueForCharacteristic。 不是立即,而是大约 5-10 秒后,外设调用委托方法 - (void)peripheralManager:(CBPeripheralManager *)peripheral didReceiveReadRequest:(CBATTRequest *)request。为什么会有延迟?我怎样才能消除延迟? 有什么想法吗?我已经尝试了将近一个星期了。 感谢每一个帮助,谢谢

中部

- (void)sendBtnClick:(id)sender
{
    USCPeerBtn *btn = (USCPeerBtn *)sender;
    CBPeripheral *peripheral = btn.connectedPeripheral;
    if (!peripheral) {
        return;
    }

    [self.charachterMDict enumerateKeysAndObjectsUsingBlock:^(id  _Nonnull key, id  _Nonnull obj, BOOL * _Nonnull stop) {

        if (key == peripheral) {
            [(CBPeripheral *)key readValueForCharacteristic:(CBCharacteristic *)obj]; // read
            *stop = YES;
        }
    }];
}

周边

// CBPeripheralManagerDelegate
- (void)peripheralManager:(CBPeripheralManager *)peripheral  didReceiveReadRequest:(CBATTRequest *)request
{
    NSLog(@"didReceiveReadRequest");
}

在方法- (void)peripheralManager:(CBPeripheralManager *)peripheral didReceiveReadRequest:(CBATTRequest *)request中调用respondToRequest:

// CBPeripheralManagerDelegate
- (void)peripheralManager:(CBPeripheralManager *)peripheral     didReceiveReadRequest:(CBATTRequest *)request
{
    [peripheral respondToRequest:request withResult:CBATTErrorSuccess];
    NSLog(@"didReceiveReadRequest");
}  

@Paulw11,谢谢