/* BabyBluetooth 简单易用的蓝牙ble库,基于CoreBluetooth 作者:刘彦玮 https://github.com/coolnameismy/BabyBluetooth */ // Created by 刘彦玮 on 15/8/1. // Copyright (c) 2015年 刘彦玮. All rights reserved. // #import "BabyToy.h" @implementation BabyToy //十六进制转换为普通字符串的。 + (NSString *)ConvertHexStringToString:(NSString *)hexString { char *myBuffer = (char *)malloc((int)[hexString length] / 2 + 1); bzero(myBuffer, [hexString length] / 2 + 1); for (int i = 0; i < [hexString length] - 1; i += 2) { unsigned int anInt; NSString * hexCharStr = [hexString substringWithRange:NSMakeRange(i, 2)]; NSScanner *scanner = [[NSScanner alloc] initWithString:hexCharStr]; [scanner scanHexInt:&anInt]; myBuffer[i / 2] = (char)anInt; } NSString *unicodeString = [NSString stringWithCString:myBuffer encoding:4]; // BabyLog(@"===字符串===%@",unicodeString); return unicodeString; } //普通字符串转换为十六进制 + (NSString *)ConvertStringToHexString:(NSString *)string { NSData *myD = [string dataUsingEncoding:NSUTF8StringEncoding]; Byte *bytes = (Byte *)[myD bytes]; //下面是Byte 转换为16进制。 NSString *hexStr=@""; for (int i=0;i<[myD length];i++) { NSString *newHexStr = [NSString stringWithFormat:@"%x",bytes[i]&0xff];///16进制数 if ([newHexStr length]==1) { hexStr = [NSString stringWithFormat:@"%@0%@",hexStr,newHexStr]; } else{ hexStr = [NSString stringWithFormat:@"%@%@",hexStr,newHexStr]; } } return hexStr; } //int转data + (NSData *)ConvertIntToData:(int)i { NSData *data = [NSData dataWithBytes: &i length: sizeof(i)]; return data; } //data转int + (int)ConvertDataToInt:(NSData *)data { int i; [data getBytes:&i length:sizeof(i)]; return i; } //十六进制转换为普通字符串的。 + (NSData *)ConvertHexStringToData:(NSString *)hexString { NSData *data = [[BabyToy ConvertHexStringToString:hexString] dataUsingEncoding:NSUTF8StringEncoding]; return data; } //根据UUIDString查找CBCharacteristic + (CBCharacteristic *)findCharacteristicFormServices:(NSMutableArray *)services UUIDString:(NSString *)UUIDString { for (CBService *s in services) { for (CBCharacteristic *c in s.characteristics) { if ([c.UUID.UUIDString isEqualToString:UUIDString]) { return c; } } } return nil; } @end