ios简单的功能类的封装

来源：互联网发布：exsi虚拟机linux网络编辑：程序博客网时间：2024/06/06 02:13

.h文件中：

#import <Foundation/Foundation.h>

#import <UIKit/UIKit.h>

@interface XYString : NSObject

#pragma mark - json转换
+(id )getObjectFromJsonString:(NSString *)jsonString;
+(NSString *)getJsonStringFromObject:(id)object;

#pragma mark - NSDate互转NSString
+(NSDate *)NSStringToDate:(NSString *)dateString;
+(NSDate *)NSStringToDate:(NSString *)dateString withFormat:(NSString *)formatestr;
+(NSString *)NSDateToString:(NSDate *)dateFromString withFormat:(NSString *)formatestr;

#pragma mark - 判断字符串是否为空,为空的话返回 “” （一般用于保存字典时）
+(NSString *)IsNotNull:(NSString*)string;
+(BOOL) isBlankString:(id)string;

#pragma mark - 如何通过一个整型的变量来控制数值保留的小数点位数。以往我们通类似@"%.2f"来指定保留2位小数位，现在我想通过一个变量来控制保留的位数
+(NSString *)newFloat:(float)value withNumber:(int)numberOfPlace;

#pragma mark - 使用subString去除float后面无效的0
+(NSString *)changeFloatWithString:(NSString *)stringFloat;

#pragma mark - 去除float后面无效的0
+(NSString *)changeFloatWithFloat:(CGFloat)floatValue;

#pragma mark - 手机号码验证
+(BOOL) isValidateMobile:(NSString *)mobile;

#pragma mark - 阿里云压缩图片
+(NSURL*)UrlWithStringForImage:(NSString*)string;
+(NSString*)removeYaSuoAttribute:(NSString*)string;

#pragma mark - 字符串类型判断
+ (BOOL)isPureInt:(NSString*)string;
+ (BOOL)isPureFloat:(NSString*)string;

#pragma mark - 计算内容文本的高度方法
+ (CGFloat)HeightForText:(NSString *)text withSizeOfLabelFont:(CGFloat)font withWidthOfContent:(CGFloat)contentWidth;

#pragma mark - 计算字符串长度
+ (CGFloat)WidthForString:(NSString *)text withSizeOfFont:(CGFloat)font;

#pragma mark - 计算两个时间相差多少秒

+(NSInteger)getSecondsWithBeginDate:(NSString*)currentDateString AndEndDate:(NSString*)tomDateString;

#pragma mark - 根据出生日期获取年龄
+ (NSInteger)ageWithDateOfBirth:(NSDate *)date;

#pragma mark - 根据经纬度计算两个位置之间的距离
+(double)distanceBetweenOrderBylat1:(double)lat1 lat2:(double)lat2 lng1:(double)lng1 lng2:(double)lng2;

@end

.m文件中：

#import "XYString.h"

@implementation XYString

#pragma mark - json转换
+(id )getObjectFromJsonString:(NSString *)jsonString
{
    NSError *error = nil;
    if (jsonString) {
        id rev=[NSJSONSerialization JSONObjectWithData:[jsonString dataUsingEncoding:NSUnicodeStringEncoding] options:NSJSONReadingMutableLeaves error:&error];
        if (error==nil) {
            return rev;
        }
        else
        {
            return nil;
        }
    }
    return nil;
}

+(NSString *)getJsonStringFromObject:(id)object
{
    if ([NSJSONSerialization isValidJSONObject:object])

    {

        NSData *jsonData = [NSJSONSerialization dataWithJSONObject:object options:0 error:nil];



        return [[NSString alloc]initWithData:jsonData encoding:NSUTF8StringEncoding];

    }

    return nil;
}

#pragma mark - NSDate互转NSString
+(NSDate *)NSStringToDate:(NSString *)dateString
{
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDateFormat:@"YYYY-MM-dd HH:mm:ss"];
    NSDate *dateFromString = [[NSDate alloc] init];
    dateFromString = [dateFormatter dateFromString:dateString];
    return dateFromString;
}

+(NSDate *)NSStringToDate:(NSString *)dateString withFormat:(NSString *)formatestr{
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDateFormat:formatestr];
    NSDate *dateFromString = [[NSDate alloc] init];
    dateFromString = [dateFormatter dateFromString:dateString];
    return dateFromString;
}

+(NSString *)NSDateToString:(NSDate *)dateFromString withFormat:(NSString *)formatestr
{
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDateFormat:formatestr];
    NSString *strDate = [dateFormatter stringFromDate:dateFromString];
    return strDate;
}

#pragma mark - 判断字符串是否为空,为空的话返回 “” （一般用于保存字典时）
+(NSString *)IsNotNull:(id)string
{
    NSString * str = (NSString*)string;
    if ([self isBlankString:str]){
        string = @"";
    }
    return string;

}

//..判断字符串是否为空字符的方法
+(BOOL) isBlankString:(id)string {
    NSString * str = (NSString*)string;
    if ([str isEqualToString:@"(null)"]) {
        return YES;
    }
    if (str == nil || str == NULL) {
        return YES;
    }
    if ([str isKindOfClass:[NSNull class]]) {
        return YES;
    }
    if ([[str stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]] length]==0) {
        return YES;
    }
    return NO;
}

#pragma mark - 使用subString去除float后面无效的0
+(NSString *)changeFloatWithString:(NSString *)stringFloat

{
    const char *floatChars = [stringFloat UTF8String];
    NSUInteger length = [stringFloat length];
    NSUInteger zeroLength = 0;
    NSInteger i = length-1;
    for(; i>=0; i--)
    {
        if(floatChars[i] == '0') {
            zeroLength++;
        } else {
            if(floatChars[i] == '.')
                i--;
            break;
        }
    }
    NSString *returnString;
    if(i == -1) {
        returnString = @"0";
    } else {
        returnString = [stringFloat substringToIndex:i+1];
    }
    return returnString;
}

#pragma mark - 去除float后面无效的0
+(NSString *)changeFloatWithFloat:(CGFloat)floatValue

{
    return [self changeFloatWithString:[NSString stringWithFormat:@"%f",floatValue]];
}

#pragma mark - 如何通过一个整型的变量来控制数值保留的小数点位数。以往我们通类似@"%.2f"来指定保留2位小数位，现在我想通过一个变量来控制保留的位数
+(NSString *)newFloat:(float)value withNumber:(int)numberOfPlace
{
    NSString *formatStr = @"%0.";
    formatStr = [formatStr stringByAppendingFormat:@"%df", numberOfPlace];
    NSLog(@"____%@",formatStr);

    formatStr = [NSString stringWithFormat:formatStr, value];
    NSLog(@"____%@",formatStr);

    printf("formatStr %s\n", [formatStr UTF8String]);
    return formatStr;
}

#pragma mark - 手机号码验证
+(BOOL) isValidateMobile:(NSString *)mobile
{
    /*
    //手机号以13， 15，18开头，八个 \d 数字字符
    NSString *phoneRegex = @"^((13[0-9])|(15[^4,\\D])|(18[0,0-9]))\\d{8}$";
    NSPredicate *phoneTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",phoneRegex];
    return [phoneTest evaluateWithObject:mobile];
    */

    NSPredicate* phoneTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", @"1[34578]([0-9]){9}"];

    return [phoneTest evaluateWithObject:mobile];

}

#pragma mark - 阿里云压缩图片
+(NSURL*)UrlWithStringForImage:(NSString*)string{
    NSString * str = [NSString stringWithFormat:@"%@@800w_600h_10Q.jpg",string];
    NSLog(@"加载图片地址=%@",str);
    return [NSURL URLWithString:str];
}

//..去掉压缩属性“@800w_600h_10Q.jpg”
+(NSString*)removeYaSuoAttribute:(NSString*)string{
    NSString * str = @"";
    if ([string rangeOfString:@"@"].location != NSNotFound) {
        NSArray * arry = [string componentsSeparatedByString:@"@"];
        str = arry[0];
    }
    return str;
}

#pragma mark - 字符串类型判断
//..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];
}

#pragma mark - 计算内容文本的高度方法
+ (CGFloat)HeightForText:(NSString *)text withSizeOfLabelFont:(CGFloat)font withWidthOfContent:(CGFloat)contentWidth
{
    NSDictionary *dict = @{NSFontAttributeName:[UIFont systemFontOfSize:font]};
    CGSize size = CGSizeMake(contentWidth, 2000);
    CGRect frame = [text boundingRectWithSize:size options:NSStringDrawingUsesLineFragmentOrigin attributes:dict context:nil];
    return frame.size.height;
}

#pragma mark - 计算字符串长度
+ (CGFloat)WidthForString:(NSString *)text withSizeOfFont:(CGFloat)font
{
    NSDictionary *dict = @{NSFontAttributeName:[UIFont systemFontOfSize:font]};
    CGSize size = [text sizeWithAttributes:dict];
    return size.width;
}

#pragma mark - 计算两个时间相差多少秒

+(NSInteger)getSecondsWithBeginDate:(NSString*)currentDateString AndEndDate:(NSString*)tomDateString{

    NSDate * currentDate = [XYString NSStringToDate:currentDateString withFormat:@"yyyy-MM-dd HH:mm:ss"];
    NSInteger currSec = [currentDate timeIntervalSince1970];

    NSDate *tomDate = [XYString NSStringToDate:tomDateString withFormat:@"yyyy-MM-dd HH:mm:ss"];
    NSInteger tomSec = [tomDate timeIntervalSince1970];

    NSInteger newSec = tomSec - currSec;
    NSLog(@"相差秒：%ld",(long)newSec);
    return newSec;
}

#pragma mark - 根据出生日期获取年龄
+ (NSInteger)ageWithDateOfBirth:(NSDate *)date;
{
    // 出生日期转换年月日
    NSDateComponents *components1 = [[NSCalendar currentCalendar] components:NSDayCalendarUnit | NSMonthCalendarUnit | NSYearCalendarUnit fromDate:date];
    NSInteger brithDateYear = [components1 year];
    NSInteger brithDateDay   = [components1 day];
    NSInteger brithDateMonth = [components1 month];

    // 获取系统当前年月日
    NSDateComponents *components2 = [[NSCalendar currentCalendar] components:NSDayCalendarUnit | NSMonthCalendarUnit | NSYearCalendarUnit fromDate:[NSDate date]];
    NSInteger currentDateYear = [components2 year];
    NSInteger currentDateDay   = [components2 day];
    NSInteger currentDateMonth = [components2 month];

    // 计算年龄
    NSInteger iAge = currentDateYear - brithDateYear - 1;
    if ((currentDateMonth > brithDateMonth) || (currentDateMonth == brithDateMonth && currentDateDay >= brithDateDay)) {
        iAge++;
    }

    return iAge;
}

#pragma mark - 根据经纬度计算两个位置之间的距离
+(double)distanceBetweenOrderBylat1:(double)lat1 lat2:(double)lat2 lng1:(double)lng1 lng2:(double)lng2{
    double dd = M_PI/180;
    double x1=lat1*dd,x2=lat2*dd;
    double y1=lng1*dd,y2=lng2*dd;
    double R = 6371004;
    double distance = (2*R*asin(sqrt(2-2*cos(x1)*cos(x2)*cos(y1-y2) - 2*sin(x1)*sin(x2))/2));
    //返回km
    return distance/1000;

    //返回m
    //return   distance;

}

@end

0 0