1. 在.h文件中写入以下方法
//如果符合邮箱格式，返回YES
- (BOOL) isValidateEmail:(NSString *)email;
/*** 判断是不是手机号*/
+ (BOOL) judegMobileByPhoneNumber:(NSString *)phoneText;
/*** 判断字符串为6～12位“字符”*/
+ (BOOL) isValidateName:(NSString *)name;
/*** 判断字符串是否为空*/
+ (BOOL) isBlankString:(NSString *)string;
/*** 设置lable的行间距*/
+ (NSMutableAttributedString *)setlineSpacing:(NSString *)content andLabel:(UILabel *)contentLabel andLineSpacing:(int)lineSpace andFirstLineHeadIndent:(int)firstLineHeadIndent;
/*** 根据标题的内容来获取lable变高*/
+ (CGFloat) getHight:(NSString *)text andFont:(UIFont *)font andWidth:(CGFloat)width;
2.在.m文件实现h文件中的方法
a.如果符合邮箱格式，返回YES
- (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];
}
b.判断是不是手机号
+ (BOOL) judegMobileByPhoneNumber:(NSString *) phoneText {
/*** 移动号段正则表达式*/
NSString *CM_NUM = @"^((13[4-9])|(147)|(15[0-2,7-9])|(178)|(18[2-4,7-8]))\\d{8}|(1705)\\d{7}$";
/*** 联通号段正则表达式*/
NSString *CU_NUM = @"^((13[0-2])|(145)|(15[5-6])|(176)|(18[5,6]))\\d{8}|(1709)\\d{7}$";
/*** 电信号段正则表达式*/
NSString *CT_NUM = @"^((133)|(153)|(177)|(18[0,1,9]))\\d{8}$";
NSPredicate *pred1 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CM_NUM];
BOOL isMatch1 = [pred1 evaluateWithObject:phoneText];
NSPredicate *pred2 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CU_NUM];
BOOL isMatch2 = [pred2 evaluateWithObject:phoneText];
NSPredicate *pred3 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CT_NUM];
BOOL isMatch3 = [pred3 evaluateWithObject:phoneText];
BOOL result = (isMatch1 || isMatch2 || isMatch3);
return result;
}
c.判断字符串为6～12位“字符”
+ (BOOL )isValidateName:(NSString *)name {
NSUInteger character = 0;
for (int I = 0; I < [name length] ; I++ ) {
int a = [name characterAtIndex:i];
if ( a > 0x4e00 && a < 0x9fff ) {
//判断是否为中文
character +=2;
} else {
character +=1;
}
}
if ( character >= 6 && character <= 20 ) {
return YES;
} else {
return NO;
}
}
d.判断字符串是否为空
+ (BOOL) isBlankString:(NSString *)string {
if (string == nil || string == NULL) {
return YES;
}
if ( [string isKindOfClass:[NSNull class]] ) {
return YES;
}
if ( [[string stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]] length] == 0 ) {
return YES;
}
return NO;
}
e.设置lable的行间距
+ (NSMutableAttributedString *) setlineSpacing:(NSString *)content andLabel:(UILabel *)contentLabel andLineSpacing:(int)lineSpace andFirstLineHeadIndent:(int)firstLineHeadIndent {
NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:content];
NSMutableParagraphStyle * paragraphStyle = [[ NSMutableParagraphStyle alloc] init ];
paragraphStyle.maximumLineHeight = 30 ; //最大的行高
paragraphStyle.lineSpacing = lineSpace ; //行自定义行高度
[paragraphStyle setFirstLineHeadIndent:firstLineHeadIndent ]; //首行缩进
[attributedString addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range : NSMakeRange ( 0 , content.length)];
return attributedString;
}
f.根据内容来获取变高
+ (CGFloat) getHight:(NSString *)text andFont:(UIFont *)font andWidth:(CGFloat)width{
CGRect rect = [text boundingRectWithSize:CGSizeMake(width, CGFLOAT_MAX) options:NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading attributes:@{NSFontAttributeName:font} context:nil];
return rect.size.height;
}
