方法声明及注释：
#pragma mark 字符串相关方法
//转换json
-(NSString *)jsonFromObject:(id)obj;
//判断字符串
-(BOOL)isString:(NSString *)string;
//字典赋值
-(NSString *)dictionaryWithDic:(NSDictionary *)dic valueForKey:(NSString *)key;
//string转换成date
-(NSDate *)dateFromString:(NSString *)dateString;
//date转换成string
-(NSString *)stringFromDate:(NSDate *)date;
//时间戳转换成字符串
-(NSString *)stringFromValue:(NSString *)value;
//验证邮箱格式
-(BOOL)isValidateEmail:(NSString *)email;
//验证电话号码
- (BOOL)isValidateMobile:(NSString *)mobileNum;
//判断是否为整形
- (BOOL)isPureInt:(NSString*)string;
//判断是否为浮点形：
- (BOOL)isPureFloat:(NSString*)string;
//保留几位小数
-(NSString *)newFloat:(float)value withNumber:(int)numberOfPlace;
//文本框赋值
-(NSString *)setText:(NSString *)text;
-(NSString *)setNumberText:(NSNumber *)number Unit:(NSString *)unit;
-(NSArray *)arraySorting:(NSString *)parameters Array:(NSArray *)array Methods:(BOOL)methods;//yes 是正序；no是倒序
方法实现：
-(NSString *)jsonFromObject:(id)obj{
NSString *jsonString = nil;
NSError *error;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:obj
options:NSJSONWritingPrettyPrinted // Pass 0 if you don't care about the readability of the generated string
error:&error];
if (! jsonData) {
NSLog(@"Got an error: %@", error);
} else {
jsonString [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
}
return jsonString;
}
#pragma mark 字符串相关方法
-(BOOL)isString:(NSString *)string{//字符串是否为空
if (![string isKindOfClass:[NSNull class]]&&string&&![string isEqualToString:@"(null)"]&& string.length != 0 &&![string isEqualToString:@"<null>"]) {
return YES;
}else{
return NO;
}
}
-(NSString *)dictionaryWithDic:(NSDictionary *)dic valueForKey:(NSString *)key{//字典取值
NSString * value = nil;
if (dic!=nil&&[[dic allKeys] containsObject:key]) {
value = [dic valueForKey:key];
}else{
value = @"";
}
return value;
}
- (NSDate *)dateFromString:(NSString *)dateString{
NSDateFormatter *dateFormatter [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat: @"yyyy-MM-dd HH:mm:ss"];
NSDate *destDate= [dateFormatter dateFromString:dateString];
return destDate;
}
- (NSString *)stringFromDate:(NSDate *)date{
init];
//zzz表示时区，zzz可以删除，这样返回的日期字符将不包含时区信息。
[dateFormatter setDateFormat:@"MM-dd HH:mm"];
NSString *destDateString = [dateFormatter stringFromDate:date];
return destDateString;
}
-(NSString *)stringFromValue:(NSString *)value{
NSString *str = [value substringToIndex:10];
NSDate *confromTimesp [NSDate dateWithTimeIntervalSince1970:[str longLongValue]];
NSDateFormatter* formatter alloc]init];
[formatter setDateFormat:@"MM-dd HH:mm"];
NSString *date = [formatter stringFromDate:confromTimesp];
NSDate *now = [NSDate date];
NSString *dateNow = [formatter stringFromDate:now];
if ([[dateNow substringToIndex:5] isEqualToString:[date substringToIndex:5]]) {
date = @" 今天";
}
NSLog(@"当前时间：%@ 加载时间%@ %@",dateNow,0)"> date,[dateNow substringToIndex:5]);
return date;
}
/*邮箱验证 MODIFIED BY HELENSONG*/
-(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];
}
/*手机号码验证 MODIFIED BY HELENSONG*/
- (BOOL)isValidateMobile:(NSString *)mobileNum
{
/**
* 手机号码
* 移动：134[0-8],135,136,137,138,139,150,151,157,158,159,182,187,188
* 联通：130,131,132,152,155,156,185,186
* 电信：133,1349,153,180,189
*/
* MOBILE @"^1(3[0-9]|5[0-35-9]|8[025-9])\\d{8}$";
10 * 中国移动：China Mobile
11 * 134[0-8],188
12 */
CM @"^1(34[0-8]|(3[5-9]|5[017-9]|8[278])\\d)\\d{7}$";
15 * 中国联通：China Unicom
16 * 130,186
17 */
CU @"^1(3[0-2]|5[256]|8[56])\\d{8}$";
20 * 中国电信：China Telecom
21 * 133,33)"> 22 */
CT @"^1((33|53|8[09])[0-9]|349)\\d{7}$";
25 * 大陆地区固话及小灵通
26 * 区号：010,020,021,022,023,024,025,027,028,029
27 * 号码：七位或八位
28 */
// NSString * PHS = @"^0(10|2[0-5789]|\\d{3})\\d{7,8}$";
NSPredicate *regextestmobile = [NSPredicate predicateWithFormat:@"SELF MOBILE];
NSPredicate *regextestcm = [NSPredicate predicateWithFormat:@"SELF CM];
NSPredicate *regextestcu = [NSPredicate predicateWithFormat:@"SELF CU];
NSPredicate *regextestct = [NSPredicate predicateWithFormat:@"SELF CT];
if (([regextestmobile evaluateWithObject:mobileNum] == YES)
|| ([regextestcm evaluateWithObject:mobileNum] == YES)
|| ([regextestct evaluateWithObject:mobileNum] == YES)
|| ([regextestcu evaluateWithObject:mobileNum] == YES))
{
return YES;
}
else
{
NO;
}
}
/*车牌号验证 MODIFIED BY HELENSONG*/
BOOL validateCarNo(NSString* carNo)
{
*carRegex @"^[A-Za-z]{1}[A-Za-z_0-9]{5}$";
NSPredicate *carTest = [NSPredicate predicateWithFormat:@"SELF(@"carTest is %@",carTest);
return [carTest evaluateWithObject:carNo];
}
//判断是否为整形
- (BOOL)isPureInt:(NSString*)string{
NSScanner* scan = [NSScanner scannerWithString:string];
int val;
return[scan scanInt:&val] && [scan isAtEnd];
}
//判断是否为浮点形：
- (BOOL)isPureFloat:(NSString*)string{
NSScanner* scan = [NSScanner scannerWithString:string];
float val;
return[scan scanFloat:&val] && [scan isAtEnd];
}
//保留几位小数
-(NSString *)newFloat:(float)value withNumber:(int)numberOfPlace
{
NSString *formatStr = @"%0.";
formatStr = [formatStr stringByAppendingFormat:@"%df", numberOfPlace];
formatStr = [NSString stringWithFormat:formatStr, value];
printf("formatStr %s\n", [formatStr UTF8String]);
return formatStr;
}
-(NSString *)setText:(NSString *)text{
NSString *str = text;
if (str.length==0) {
str = @"未填写";
}
return str;
}
-(NSString *)setNumberText:(NSNumber *)number Unit:(NSString *)unit{
// [self newFloat:[number floatValue] withNumber:1];
if ([number isKindOfClass:[NSNull class]]||[number integerValue]==0) {
number = [NSNumber numberWithInteger:0];
}
NSString *str =@"";
if (unit.length==0) {
str = [NSString stringWithFormat:@"%@",[self newFloat:[number floatValue] withNumber:0]];
}else{
str = [NSString stringWithFormat:@"%@%@",[self newFloat:[number floatValue] withNumber:0],unit];
}
return str;
}
-(NSArray *)arraySorting:(NSString *)parameters Array:(NSArray *)array Methods:(BOOL)methods{//yes是倒序
NSSortDescriptor*sorter=[[NSSortDescriptor alloc]initWithKey:parameters ascending:YES];
NSMutableArray *sortDescriptors=[[NSMutableArray alloc]initWithObjects:&sorter count:1];
NSArray *sortArray=[array sortedArrayUsingDescriptors:sortDescriptors];
NSArray* reversedArray = [[sortArray reverSEObjectEnumerator] allObjects];
if (methods) {
return sortArray;
}else{
return reversedArray;
}
}
原文链接：https://www.f2er.com/regex/360899.html