ios开发常用封装的实用方法

#pragma mark 获取设备id

+ (NSString *)getDeviceId

{

NSString *identifierForVendor = [[UIDevice currentDevice].identifierForVendor UUIDString];

return identifierForVendor;

}

#pragma mark 判断字符串是否为空，null，nil等...(YES：为空)

+ (BOOL)valString:(NSString *)string {

NSString *toString = [NSString stringWithFormat:@"%@",string];

if (toString == nil || toString == NULL) {

return YES;

}

if ([toString isKindOfClass:[NSNull class]]) {

return YES;

}

if ([toString isEqualToString:@""]) {

return YES;

}

if ([toString isEqualToString:@"(null)"]) {

return YES;

}

if ([toString isEqualToString:@"<null>"]) {

return YES;

}

if ([toString stringByReplacingOccurrencesOfString:@" " withString:@""].length<=0) {

return YES;

}

return NO;

}

#pragma mark 判断字符串是否是数字 是返回本身不是返回0

+ (NSString *)stringTurnNumber:(NSString *)string {

NSString *toString = [[NSString stringWithFormat:@"%@",string] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];

if ([self isNumText:toString]) {

return toString;

}else{

return @"0";

}

}

#pragma mark 判断字符串是否为空，空返回@""不为空返回本身

+ (NSString *)stringTurnString:(NSString *)string {

if ([self valString:string]) {

return @"";

}else{

return [NSString stringWithFormat:@"%@",string];

}

}

#pragma mark 是否是纯数字

+ (BOOL)isNumText:(NSString *)str {

str = [NSString stringWithFormat:@"%@",str];

NSScanner* scan = [NSScanner scannerWithString:str];

double val;

return[scan scanDouble:&val] && [scan isAtEnd];

}

#pragma mark 判断输入的密码是否是数字和字母组成

+(BOOL)isPassword:(NSString *)string{

NSCharacterSet *s = [NSCharacterSet characterSetWithCharactersInString:@"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890_"];

s = [s invertedSet];

NSRange r = [string rangeOfCharacterFromSet:s];

if (r.location !=NSNotFound) {

return NO;

}

return YES;

}

#pragma mark 验证身份证号码

+ (BOOL) IsIdentityCard:(NSString *)IDCardNumber

{

if (IDCardNumber.length <= 0) {

return NO;

}

NSString *regex2 = @"^(\\d{14}|\\d{17})(\\d|[xX])$";

NSPredicate *identityCardPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex2];

return [identityCardPredicate evaluateWithObject:IDCardNumber];

}

#pragma mark 验证手机号

+ (BOOL) IsPhoneNumber:(NSString *)number

{

NSString *phoneRegex1=@"1[34578]([0-9]){9}";

NSPredicate *phoneTest1 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",phoneRegex1];

return  [phoneTest1 evaluateWithObject:number];

}

#pragma mark 验证银行卡

+ (BOOL) IsBankCard:(NSString *)cardNumber

{

if(cardNumber.length==0)

{

return NO;

}

NSString *digitsOnly = @"";

char c;

for (int i = 0; i < cardNumber.length; i++)

{

c = [cardNumber characterAtIndex:i];

if (isdigit(c))

{

digitsOnly =[digitsOnly stringByAppendingFormat:@"%c",c];

}

}

int sum = 0;

int digit = 0;

int addend = 0;

BOOL timesTwo = false;

for (NSInteger i = digitsOnly.length - 1; i >= 0; i--)

{

digit = [digitsOnly characterAtIndex:i] - '0';

if (timesTwo)

{

addend = digit * 2;

if (addend > 9) {

addend -= 9;

}

}

else {

addend = digit;

}

sum += addend;

timesTwo = !timesTwo;

}

int modulus = sum % 10;

return modulus == 0;

}

#pragma mark - NSIndexPath 根据TableView、Cell子视图,获取indexPath

+ (NSIndexPath *)indexPathWithTableView:(UITableView *)tableView cellSubview:(UIView *)view {

if (![tableView isKindOfClass:[UITableView class]]) return nil;

if (![view isKindOfClass:[UIView class]]) return nil;

if ([view isKindOfClass:[UITableViewCell class]]) return [tableView indexPathForCell:(UITableViewCell *)view];

id cell = view;

while (YES) {

cell = [cell superview];

if ([cell isKindOfClass:[UITableViewCell class]]) return [tableView indexPathForCell:(UITableViewCell *)cell];

if (![cell isKindOfClass:[UIView class]]) return nil;

}

return nil;

}