我尝试使用 iOS CoreBluetooth 框架创建一个 128Bit。
我写的代码在这里:
//16Bit Value-String
static NSString * const ADVERTISING_SERVICE_16=@"FFC0";
//Var for 128Bit String
static NSString * ADVERTISING_SERVICE;
//A Base UUID
static NSString * const BASE_UUID=@"0405060708090A0B0C0D0E0F";
+ (NSString*) get128BitUUID:(NSString*)uuid{
return [[NSString alloc] initWithFormat:@"0000%@%@",uuid,BASE_UUID];
}
ADVERTISING_SERVICE = [UUIDFuncs get128BitUUID:ADVERTISING_SERVICE_16];
现在,当我尝试使用此获取 UUID 时:
if([service.UUID isEqual:[CBUUID UUIDWithString:ADVERTISING_SERVICE] ]){
[peripheral discoverCharacteristics:nil forService:service];
}
我收到此错误消息:
2012-09-04 14:18:06.127 blukiiFirmwareTest[3154:707] *** Terminating app due to uncaught
exception 'Invalid UUID string', reason: 'String 0000FFC00405060708090A0B0C0D0E0F
does not represent a valid UUID'
我不明白为什么;该字符串是一个 16 字节长的 UUID,这是 128 位,为什么我会收到此错误?