- 获取设备的UUID
+ (NSString*)getDeviceUUID{
int mgmtInfoBase[6];
char *msgBuffer = NULL;
size_t length;
unsigned char macAddress[6];
struct if_msghdr *interfaceMsgStruct;
struct sockaddr_dl *socketStruct;
NSString * errorFlag = NULL;
// Setup the management Information Base (mib)
mgmtInfoBase[0] = CTL_NET; // Request network subsystem
mgmtInfoBase[1] = AF_ROUTE; // Routing table info
mgmtInfoBase[2] = 0;
mgmtInfoBase[3] = AF_LINK; // Request link layer information
mgmtInfoBase[4] = NET_RT_IFLIST; // Request all configured interfaces
// With all configured interfaces requested, get handle index
if ((mgmtInfoBase[5] = if_nametoindex("en0")) == 0)
errorFlag = @"if_nametoindex failure";
else
{
// Get the size of the data available (store in len)
if (sysctl(mgmtInfoBase, 6, NULL, &length, NULL, 0) < 0)
errorFlag = @"sysctl mgmtInfoBase failure";
else
{
// Alloc memory based on above call
if ((msgBuffer = malloc(length)) == NULL)
errorFlag = @"buffer allocation failure";
else
{
// Get system information, store in buffer
if (sysctl(mgmtInfoBase, 6, msgBuffer, &length, NULL, 0) < 0)
errorFlag = @"sysctl msgBuffer failure";
}
}
}
// Befor going any further...
if (errorFlag != NULL)
{
//DebugLog(@"Error: %@", errorFlag);
return errorFlag;
}
// Map msgbuffer to interface message structure
interfaceMsgStruct = (struct if_msghdr *) msgBuffer;
// Map to link-level socket structure
socketStruct = (struct sockaddr_dl *) (interfaceMsgStruct + 1);
// Copy link layer address data in socket structure to an array
memcpy(&macAddress, socketStruct->sdl_data + socketStruct->sdl_nlen, 6);
// Read from char array into a string object, into traditional Mac address format
NSString *macAddressString = [NSString stringWithFormat:@"%02X:%02X:%02X:%02X:%02X:%02X",
macAddress[0], macAddress[1], macAddress[2],
macAddress[3], macAddress[4], macAddress[5]];
// DebugLog(@"Mac Address: %@", macAddressString);
// Release the buffer memory
free(msgBuffer);
//适配iOS7设备绑定功能
if ([[[UIDevice currentDevice] systemVersion]intValue]<6) {
return macAddressString;
}
else{
// return [[[ASIdentifierManager sharedManager] advertisingIdentifier] UUIDString];
NSString *adUUIDString = [[[UIDevice currentDevice] identifierForVendor] UUIDString];
//NSLog(@"adUUIDString: %@",adUUIDString);
return [adUUIDString stringByReplacingOccurrencesOfString:@"-" withString:@""];
}
}
说明: 需要导入下面的头文件
#include <sys/sysctl.h>
#include <net/if.h>
#include <net/if_dl.h>
当程序卸载重新安装之后获取到的UUID会发生变化,可是在开发中我们需要的是不能变化的，那该怎么办呢？？？
别急，已经为你准备好了，请看下面的链接.
链接: http://pan.baidu.com/s/1miwBGUG 密码: nbys
- 过滤emoji字符
/**
* 过滤emoji字符
*
* @param string 需要过滤的字符串
*
* @return 过滤emoji后的字符串
*/
+ (NSString *)filterEmoji:(NSString *)string {
NSUInteger len = [string lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
const char *utf8 = [string UTF8String];
char *newUTF8 = malloc( sizeof(char) * len );
int j = 0;
//0xF0(4) 0xE2(3) 0xE3(3) 0xC2(2) 0x30---0x39(4)
for ( int i = 0; i < len; i++ ) {
unsigned int c = utf8[i];
BOOL isControlChar = NO;
if ( c == 4294967280 ||
c == 4294967089 ||
c == 4294967090 ||
c == 4294967091 ||
c == 4294967092 ||
c == 4294967093 ||
c == 4294967094 ||
c == 4294967095 ||
c == 4294967096 ||
c == 4294967097 ||
c == 4294967088 ) {
i = i + 3;
isControlChar = YES;
}
if ( c == 4294967266 || c == 4294967267 ) {
i = i + 2;
isControlChar = YES;
}
if ( c == 4294967234 ) {
i = i + 1;
isControlChar = YES;
}
if ( !isControlChar ) {
newUTF8[j] = utf8[i];
j++;
}
}
newUTF8[j] = '\0';
NSString *encrypted = [NSString stringWithCString:(const char*)newUTF8 encoding:NSUTF8StringEncoding];
free( newUTF8 );
return encrypted;
}
