核心蓝牙ios 8
核心蓝牙ios 8
提问于 2014-09-30 12:26:36
我使用核心蓝牙连接两个ios设备。对于ios 7来说，一切都是完美的，但对于ios 8来说，没有。带有ios 8的设备作为外围设备不可见。
一些代码：
_peripheralManager = [[CBPeripheralManager alloc] initWithDelegate:self queue:nil];
[_peripheralManager startAdvertising:@{CBAdvertisementDataServiceUUIDsKey: @[[CBUUID UUIDWithString:TRANSFER_SERVICE_UUID]]}];
- (void) peripheral:(CBPeripheral *)peripheral didDiscoverServices:(NSError *)error{
if (error) {
[self cleanup];
return;
}
for (CBService *service in peripheral.services) {
[peripheral discoverCharacteristics:@[[CBUUID UUIDWithString:TRANSFER_CHARACTERISTIC_UUID]] forService:service];
}
}
- (void) peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(CBService *)service error:(NSError *)error{
if(error){
[self cleanup];
return;
}
for (CBCharacteristic *charactristic in service.characteristics) {
if ([charactristic.UUID isEqual:[CBUUID UUIDWithString:TRANSFER_CHARACTERISTIC_UUID]]) {
[peripheral setNotifyValue:YES forCharacteristic:charactristic];
}
}
}
- (void) peripheral:(CBPeripheral *)peripheral didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error{
if (error) {
return;
}
NSString *stringFromData = [[NSString alloc] initWithData:characteristic.value encoding:NSUTF8StringEncoding];
[peripheral setNotifyValue:NO forCharacteristic:characteristic];
[_centralManager cancelPeripheralConnection:peripheral];
[_data appendData:characteristic.value];
NSDictionary *recievedData = [NSDictionary dictionaryWithObject:stringFromData forKey:@"receivedData"];
[[NSNotificationCenter defaultCenter]
postNotificationName:DATA_FROM_PERIPHERAL_RECEIVED
object:self userInfo:recievedData];
// }
}
- (void)peripheral:(CBPeripheral *)peripheral didUpdateNotificationStateForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error{
if (![characteristic.UUID isEqual:[CBUUID UUIDWithString:TRANSFER_CHARACTERISTIC_UUID]]) {
return;
}
if (characteristic.isNotifying) {
NSLog(@"Notification began on %@", characteristic);
}else{
[_centralManager cancelPeripheralConnection:peripheral];
}
}回答 1
Stack Overflow用户
回答已采纳
发布于 2014-10-03 12:58:33
iOS 8.0 bluetooth peripheral manager giving no callback for addService -这个问题帮助我解决了这个问题。只是需要移动一下
[_peripheralManager startAdvertising:@{CBAdvertisementDataServiceUUIDsKey: @[[CBUUID UUIDWithString:TRANSFER_SERVICE_UUID]]}];到-(void)peripheralManagerDidUpdateState:(CBPeripheralManager *)peripheral方法：
-(void)peripheralManagerDidUpdateState:(CBPeripheralManager *)peripheral{
if (peripheral.state != CBPeripheralManagerStatePoweredOn) {
return;
}
if (peripheral.state == CBPeripheralManagerStatePoweredOn) {
[_peripheralManager startAdvertising:@{CBAdvertisementDataServiceUUIDsKey: @[[CBUUID UUIDWithString:TRANSFER_SERVICE_UUID]]}];
self.transferCharacteristic = [[CBMutableCharacteristic alloc] initWithType:[CBUUID UUIDWithString:TRANSFER_CHARACTERISTIC_UUID] properties:CBCharacteristicPropertyNotify value:nil permissions:CBAttributePermissionsReadable];
CBMutableService *transferService = [[CBMutableService alloc]initWithType:[CBUUID UUIDWithString:TRANSFER_SERVICE_UUID] primary:YES];
transferService.characteristics = @[_transferCharacteristic];
[_peripheralManager addService:transferService];
}
}现在，对于ios 6、7、8来说，一切都很好。
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原文链接：
https://stackoverflow.com/questions/26120834
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