ios 常用工具類
編輯：IOS開發綜合
[java]
#import "Utility.h"
@implementation Utility
+(NSString *)createMD5:(NSString *)signString
{
const char*cStr =[signString UTF8String];
unsigned char result[16];
CC_MD5(cStr, strlen(cStr), result);
return[NSString stringWithFormat:
@"%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",
result[0], result[1], result[2], result[3],
result[4], result[5], result[6], result[7],
result[8], result[9], result[10], result[11],
result[12], result[13], result[14], result[15]
];
}
+(NSString *)createPostURL:(NSMutableDictionary *)params
{
NSString *postString=@"";
for(NSString *key in [params allKeys])
{
NSString *value=[params objectForKey:key];
postString=[postString stringByAppendingFormat:@"%@=%@&",key,value];
}
if([postString length]>1)
{
postString=[postString substringToIndex:[postString length]-1];
}
return postString;
}
+(NSString *)getCurrentDate
{
NSDateFormatter *dateFormatter=[[[NSDateFormatter alloc] init] autorelease];
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
return [dateFormatter stringFromDate:[NSDate date]];
}
+(BOOL) connectedToNetwork
{
// Create zero addy
struct sockaddr_in zeroAddress;
bzero(&zeroAddress, sizeof(zeroAddress));
zeroAddress.sin_len = sizeof(zeroAddress);
zeroAddress.sin_family = AF_INET;
// Recover reachability flags
SCNetworkReachabilityRef defaultRouteReachability = SCNetworkReachabilityCreateWithAddress(NULL, (struct sockaddr *)&zeroAddress);
SCNetworkReachabilityFlags flags;
BOOL didRetrieveFlags = SCNetworkReachabilityGetFlags(defaultRouteReachability, &flags);
CFRelease(defaultRouteReachability);
if (!didRetrieveFlags)
{
printf("Error. Could not recover network reachability flags\n");
return NO;
}
BOOL isReachable = ((flags & kSCNetworkFlagsReachable) != 0);
BOOL needsConnection = ((flags & kSCNetworkFlagsConnectionRequired) != 0);
return (isReachable && !needsConnection) ? YES : NO;
}
// Direct from Apple. Thank you Apple
+ (BOOL)addressFromString:(NSString *)IPAddress address:(struct sockaddr_in *)address
{
if (!IPAddress || ![IPAddress length]) return NO;
memset((char *) address, sizeof(struct sockaddr_in), 0);
address->sin_family = AF_INET;
address->sin_len = sizeof(struct sockaddr_in);
int conversionResult = inet_aton([IPAddress UTF8String], &address->sin_addr);
if (conversionResult == 0) {
NSAssert1(conversionResult != 1, @"Failed to convert the IP address string into a sockaddr_in: %@", IPAddress);
return NO;
}
return YES;
}
+ (NSString *) getIPAddressForHost: (NSString *) theHost
{
theHost=[theHost substringFromIndex:7];
//NSLog(@"%@",theHost);
struct hostent *host = gethostbyname([theHost UTF8String]);
if (!host) {herror("resolv"); return NULL; }
struct in_addr **list = (struct in_addr **)host->h_addr_list;
NSString *addressString = [NSString stringWithCString:inet_ntoa(*list[0]) encoding:NSUTF8StringEncoding];
return addressString;
}
+ (BOOL) hostAvailable: (NSString *) theHost
{
NSString *addressString = [self getIPAddressForHost:theHost];
if (!addressString)
{
printf("Error recovering IP address from host name\n");
return NO;
}
struct sockaddr_in address;
BOOL gotAddress = [self addressFromString:addressString address:&address];
if (!gotAddress)
{
printf("Error recovering sockaddr address from %s\n", [addressString UTF8String]);
return NO;
}
SCNetworkReachabilityRef defaultRouteReachability = SCNetworkReachabilityCreateWithAddress(NULL, (struct sockaddr *)&address);
SCNetworkReachabilityFlags flags;
BOOL didRetrieveFlags =SCNetworkReachabilityGetFlags(defaultRouteReachability, &flags);
CFRelease(defaultRouteReachability);
if (!didRetrieveFlags)
{
printf("Error. Could not recover network reachability flags\n");
return NO;
}
BOOL isReachable = flags & kSCNetworkFlagsReachable;
return isReachable ? YES : NO;;
}
//通過區分字符串
+(BOOL)validateEmail:(NSString*)email
{
if((0 != [email rangeOfString:@"@"].length) &&
(0 != [email rangeOfString:@"."].length))
{
NSCharacterSet* tmpInvalidCharSet = [[NSCharacterSet alphanumericCharacterSet] invertedSet];
NSMutableCharacterSet* tmpInvalidMutableCharSet = [[tmpInvalidCharSet mutableCopy] autorelease];
[tmpInvalidMutableCharSet removeCharactersInString:@"_-"];
NSRange range1 = [email rangeOfString:@"@"
options:NSCaseInsensitiveSearch];
//取得用戶名部分
NSString* userNameString = [email substringToIndex:range1.location];
NSArray* userNameArray = [userNameString componentsSeparatedByString:@"."];
for(NSString* string in userNameArray)
{
NSRange rangeOfInavlidChars = [string rangeOfCharacterFromSet: tmpInvalidMutableCharSet];
if(rangeOfInavlidChars.length != 0 || [string isEqualToString:@""])
return NO;
}
//取得域名部分
NSString *domainString = [email substringFromIndex:range1.location+1];
NSArray *domainArray = [domainString componentsSeparatedByString:@"."];
for(NSString *string in domainArray)
{
NSRange rangeOfInavlidChars=[string rangeOfCharacterFromSet:tmpInvalidMutableCharSet];
if(rangeOfInavlidChars.length !=0 || [string isEqualToString:@""])
return NO;
}
return YES;
}
else {
return NO;
}
}
//利用正則表達式驗證
+(BOOL)isValidateEmail:(NSString *)email {
NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";
NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
return [emailTest evaluateWithObject:email];
}
+(BOOL)isValidateString:(NSString *)myString
{
NSCharacterSet *nameCharacters = [[NSCharacterSet characterSetWithCharactersInString:@"_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"] invertedSet];
NSRange userNameRange = [myString rangeOfCharacterFromSet:nameCharacters];
if (userNameRange.location != NSNotFound) {
//NSLog(@"包含特殊字符");
return FALSE;
}else{
return TRUE;
}
}
#import "Utility.h"
@implementation Utility
+(NSString *)createMD5:(NSString *)signString
{
const char*cStr =[signString UTF8String];
unsigned char result[16];
CC_MD5(cStr, strlen(cStr), result);
return[NSString stringWithFormat:
@"%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",
result[0], result[1], result[2], result[3],
result[4], result[5], result[6], result[7],
result[8], result[9], result[10], result[11],
result[12], result[13], result[14], result[15]
];
}
+(NSString *)createPostURL:(NSMutableDictionary *)params
{
NSString *postString=@"";
for(NSString *key in [params allKeys])
{
NSString *value=[params objectForKey:key];
postString=[postString stringByAppendingFormat:@"%@=%@&",key,value];
}
if([postString length]>1)
{
postString=[postString substringToIndex:[postString length]-1];
}
return postString;
}
+(NSString *)getCurrentDate
{
NSDateFormatter *dateFormatter=[[[NSDateFormatter alloc] init] autorelease];
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
return [dateFormatter stringFromDate:[NSDate date]];
}
+(BOOL) connectedToNetwork
{
// Create zero addy
struct sockaddr_in zeroAddress;
bzero(&zeroAddress, sizeof(zeroAddress));
zeroAddress.sin_len = sizeof(zeroAddress);
zeroAddress.sin_family = AF_INET;
// Recover reachability flags
SCNetworkReachabilityRef defaultRouteReachability = SCNetworkReachabilityCreateWithAddress(NULL, (struct sockaddr *)&zeroAddress);
SCNetworkReachabilityFlags flags;
BOOL didRetrieveFlags = SCNetworkReachabilityGetFlags(defaultRouteReachability, &flags);
CFRelease(defaultRouteReachability);
if (!didRetrieveFlags)
{
printf("Error. Could not recover network reachability flags\n");
return NO;
}
BOOL isReachable = ((flags & kSCNetworkFlagsReachable) != 0);
BOOL needsConnection = ((flags & kSCNetworkFlagsConnectionRequired) != 0);
return (isReachable && !needsConnection) ? YES : NO;
}
// Direct from Apple. Thank you Apple
+ (BOOL)addressFromString:(NSString *)IPAddress address:(struct sockaddr_in *)address
{
if (!IPAddress || ![IPAddress length]) return NO;
memset((char *) address, sizeof(struct sockaddr_in), 0);
address->sin_family = AF_INET;
address->sin_len = sizeof(struct sockaddr_in);
int conversionResult = inet_aton([IPAddress UTF8String], &address->sin_addr);
if (conversionResult == 0) {
NSAssert1(conversionResult != 1, @"Failed to convert the IP address string into a sockaddr_in: %@", IPAddress);
return NO;
}
return YES;
}
+ (NSString *) getIPAddressForHost: (NSString *) theHost
{
theHost=[theHost substringFromIndex:7];
//NSLog(@"%@",theHost);
struct hostent *host = gethostbyname([theHost UTF8String]);
if (!host) {herror("resolv"); return NULL; }
struct in_addr **list = (struct in_addr **)host->h_addr_list;
NSString *addressString = [NSString stringWithCString:inet_ntoa(*list[0]) encoding:NSUTF8StringEncoding];
return addressString;
}
+ (BOOL) hostAvailable: (NSString *) theHost
{
NSString *addressString = [self getIPAddressForHost:theHost];
if (!addressString)
{
printf("Error recovering IP address from host name\n");
return NO;
}
struct sockaddr_in address;
BOOL gotAddress = [self addressFromString:addressString address:&address];
if (!gotAddress)
{
printf("Error recovering sockaddr address from %s\n", [addressString UTF8String]);
return NO;
}
SCNetworkReachabilityRef defaultRouteReachability = SCNetworkReachabilityCreateWithAddress(NULL, (struct sockaddr *)&address);
SCNetworkReachabilityFlags flags;
BOOL didRetrieveFlags =SCNetworkReachabilityGetFlags(defaultRouteReachability, &flags);
CFRelease(defaultRouteReachability);
if (!didRetrieveFlags)
{
printf("Error. Could not recover network reachability flags\n");
return NO;
}
BOOL isReachable = flags & kSCNetworkFlagsReachable;
return isReachable ? YES : NO;;
}
//通過區分字符串
+(BOOL)validateEmail:(NSString*)email
{
if((0 != [email rangeOfString:@"@"].length) &&
(0 != [email rangeOfString:@"."].length))
{
NSCharacterSet* tmpInvalidCharSet = [[NSCharacterSet alphanumericCharacterSet] invertedSet];
NSMutableCharacterSet* tmpInvalidMutableCharSet = [[tmpInvalidCharSet mutableCopy] autorelease];
[tmpInvalidMutableCharSet removeCharactersInString:@"_-"];
NSRange range1 = [email rangeOfString:@"@"
options:NSCaseInsensitiveSearch];
//取得用戶名部分
NSString* userNameString = [email substringToIndex:range1.location];
NSArray* userNameArray = [userNameString componentsSeparatedByString:@"."];
for(NSString* string in userNameArray)
{
NSRange rangeOfInavlidChars = [string rangeOfCharacterFromSet: tmpInvalidMutableCharSet];
if(rangeOfInavlidChars.length != 0 || [string isEqualToString:@""])
return NO;
}
//取得域名部分
NSString *domainString = [email substringFromIndex:range1.location+1];
NSArray *domainArray = [domainString componentsSeparatedByString:@"."];
for(NSString *string in domainArray)
{
NSRange rangeOfInavlidChars=[string rangeOfCharacterFromSet:tmpInvalidMutableCharSet];
if(rangeOfInavlidChars.length !=0 || [string isEqualToString:@""])
return NO;
}
return YES;
}
else {
return NO;
}
}
//利用正則表達式驗證
+(BOOL)isValidateEmail:(NSString *)email {
NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";
NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
return [emailTest evaluateWithObject:email];
}
+(BOOL)isValidateString:(NSString *)myString
{
NSCharacterSet *nameCharacters = [[NSCharacterSet characterSetWithCharactersInString:@"_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"] invertedSet];www.2cto.com
NSRange userNameRange = [myString rangeOfCharacterFromSet:nameCharacters];
if (userNameRange.location != NSNotFound) {
//NSLog(@"包含特殊字符");
return FALSE;
}else{
return TRUE;
}
}
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