iOS|iOS 验证输入内容 iOS验证输入内容

前言平时开发中textField比较常用，比如限制输入等。本文主要讨论textField相关代理方法于正则表达式的结合。
相关方法

/** *判断是否包含空格 * *@param str NSString * *@return BOOL */ + (BOOL)CheckisBlank:(NSString *)str{NSRange _range = [str rangeOfString:@" "]; if (_range.location != NSNotFound) { //有空格 return YES; }else { //没有空格 return NO; } }/** *判断是否包含中文 * *@param string NSString * *@return BOOL */ + (BOOL)checkIsChinese:(NSString *)string{for (int i=0; i《》()[]{}【】^@/￡¤￥|§¨「」『』￠￢￣~@#￥&*（）——+|《》$_€。 NSRange urgentRange = [str rangeOfCharacterFromSet: [NSCharacterSet characterSetWithCharactersInString: @"~￥#&*<>《》()[]{}【】^@/￡¤￥|§¨「」『』￠￢￣~@#￥&*（）——+|《》$_€"]]; if (urgentRange.location == NSNotFound) { return NO; } return YES; }/** *判断是否包含表情 * *@param string NSString * *@return BOOL */ + (BOOL)validateContainsEmoji:(NSString *)string {__block BOOL returnValue = https://www.it610.com/article/NO; [string enumerateSubstringsInRange:NSMakeRange(0, [string length]) options:NSStringEnumerationByComposedCharacterSequences usingBlock:^(NSString *substring, NSRange substringRange, NSRange enclosingRange, BOOL *stop) { const unichar hs = [substring characterAtIndex:0]; if (0xd800 <= hs && hs <= 0xdbff) { if (substring.length> 1) { const unichar ls = [substring characterAtIndex:1]; const int uc = ((hs - 0xd800) * 0x400) + (ls - 0xdc00) + 0x10000; if (0x1d000 <= uc && uc <= 0x1f77f) { returnValue = https://www.it610.com/article/YES; } } } else if (substring.length> 1) { const unichar ls = [substring characterAtIndex:1]; if (ls == 0x20e3) { returnValue = https://www.it610.com/article/YES; } } else { if (0x2100 <= hs && hs <= 0x27ff) { returnValue = YES; } else if (0x2B05 <= hs && hs <= 0x2b07) { returnValue = YES; } else if (0x2934 <= hs && hs <= 0x2935) { returnValue = YES; } else if (0x3297 <= hs && hs <= 0x3299) { returnValue = YES; } else if (hs == 0xa9 || hs == 0xae || hs == 0x303d || hs == 0x3030 || hs == 0x2b55 || hs == 0x2b1c || hs == 0x2b1b || hs == 0x2b50) { returnValue = YES; } } }]; return returnValue; }

一些字符串验证方法

//验证手机号 +(BOOL)isMobileNumber:(NSString *)mobileNum{ NSString *regex = @"^((13[0-9])|(147)|(15[^4,\\D])|(18[0,5-9]))\\d{8}$"; NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex]; BOOL isMatch = [pred evaluateWithObject:mobileNum]; return isMatch; }//验证车牌号 +(BOOL)validateCarNo:(NSString*)carNo{ NSString *carRegex = @"^[A-Za-z]{1}[A-Za-z_0-9]{5}$"; NSPredicate *carTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",carRegex]; NSLog(@"carTest is %@",carTest); return [carTest evaluateWithObject:carNo]; }//正则匹配用户身份证号15或18位 + (BOOL)checkUserIdCard: (NSString *) idCard{ NSString *pattern = @"(^[0-9]{15}$)|([0-9]{17}([0-9]|X)$)"; NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", pattern]; BOOL isMatch = [pred evaluateWithObject:idCard]; return isMatch; }// 正则匹配URL + (BOOL)checkURL : (NSString *) url{ NSString *pattern = @"^[0-9A-Za-z]{1,50}"; NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", pattern]; BOOL isMatch = [pred evaluateWithObject:url]; return isMatch; }//正则匹配用户密码6-18位数字和字母组合 + (BOOL)checkPassword:(NSString *) password{ NSString *pattern = @"^(?![0-9]+$)(?![a-zA-Z]+$)[a-zA-Z0-9]{6,18}"; NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", pattern]; BOOL isMatch = [pred evaluateWithObject:password]; return isMatch; }

总结 【iOS|iOS 验证输入内容】以上就是自己总结的常用正则和输入限制，后期会持续更新。。。