iOS开发——大大节省代码量的小技巧

2016/06/30 iOS开发

总结一些开发中的常用方法,大量节省开发时间

  • 1. 判断手机号码格式是否正确,利用正则表达式验证
+ (BOOL)isMobileNumber:(NSString *)mobileNum
{
    if (mobileNum.length != 11)
    {
        return NO;
    }
    /**
     * 手机号码:
     * 13[0-9], 14[5,7], 15[0, 1, 2, 3, 5, 6, 7, 8, 9], 17[6, 7, 8], 18[0-9], 170[0-9]
     * 移动号段: 134,135,136,137,138,139,150,151,152,157,158,159,182,183,184,187,188,147,178,1705
     * 联通号段: 130,131,132,155,156,185,186,145,176,1709
     * 电信号段: 133,153,180,181,189,177,1700
     */
    NSString *MOBILE = @"^1(3[0-9]|4[57]|5[0-35-9]|8[0-9]|70)\d{8}$";
    /**
     * 中国移动:China Mobile
     * 134,135,136,137,138,139,150,151,152,157,158,159,182,183,184,187,188,147,178,1705
     */
    NSString *CM = @"(^1(3[4-9]|4[7]|5[0-27-9]|7[8]|8[2-478])\d{8}$)|(^1705\d{7}$)";
    /**
     * 中国联通:China Unicom
     * 130,131,132,155,156,185,186,145,176,1709
     */
    NSString *CU = @"(^1(3[0-2]|4[5]|5[56]|7[6]|8[56])\d{8}$)|(^1709\d{7}$)";
    /**
     * 中国电信:China Telecom
     * 133,153,180,181,189,177,1700
     */
    NSString *CT = @"(^1(33|53|77|8[019])\d{8}$)|(^1700\d{7}$)";
    NSPredicate *regextestmobile = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", MOBILE];
    NSPredicate *regextestcm = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CM];
    NSPredicate *regextestcu = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CU];
    NSPredicate *regextestct = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CT];
    if (([regextestmobile evaluateWithObject:mobileNum] == YES)
        || ([regextestcm evaluateWithObject:mobileNum] == YES)
        || ([regextestct evaluateWithObject:mobileNum] == YES)
        || ([regextestcu evaluateWithObject:mobileNum] == YES))
    {
        return YES;
    }
    else
    {
        return NO;
    }
}
  • 2. 判断邮箱格式是否正确,利用正则表达式验证
+ (BOOL)isAvailableEmail:(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];
}
  • 3. 判断字符串中是否含有空格
+ (BOOL)isHaveSpaceInString:(NSString *)string{
    NSRange _range = [string rangeOfString:@" "];
    if (_range.location != NSNotFound) {
        return YES;
    }else {
        return NO;
    }
}
  • 4. 判断字符串中是否含有中文
+ (BOOL)isHaveChineseInString:(NSString *)string
{
    for(NSInteger i = 0; i < [string length]; i++){
        int a = [string characterAtIndex:i];
        if (a > 0x4e00 && a < 0x9fff) {
            return YES;
        }
    }
    return NO;
}
  • 5. 判断字符串是否全部为数字
+ (BOOL)isAllNum:(NSString *)string
{
    unichar c;
    for (int i=0; i<string.length; i++) {         c="[string characterAtIndex:i];"         if (!isdigit(c)) {=""             return no;=""         }=""     }=""     return yes;="" }<="" pre=""><p>判断是否是纯数字</p><pre class="brush:js;toolbar:false">+ (BOOL)isPureInteger:(NSString *)str {
    NSScanner *scanner = [NSScanner scannerWithString:str];
    NSInteger val;
    return [scanner scanInteger:&val] && [scanner isAtEnd];
}
  • 6. 过滤一些特殊字符 似乎只能去除头尾的特殊字符(不准)
+ (NSString *)filterSpecialWithString:(NSString *)string
{
    // 定义一个特殊字符的集合
    NSCharacterSet *set = [NSCharacterSet characterSetWithCharactersInString: @ "@/:;: ;()?「」"、[]{}#%-*+=_|~<>$?^?'@#$%^&*()_+'"];
    // 过滤字符串的特殊字符
    NSString *newString = [string stringByTrimmingCharactersInSet:set];
    return newString;
}
  • 7. 让iOS应用直接退出
+ (void)backOutApp {
    UIWindow *window = [[UIApplication sharedApplication].delegate window];
    [UIView animateWithDuration:1.0f animations:^{
        window.alpha = 0;
    } completion:^(BOOL finished) {
        exit(0);
    }];
}
  • 8. NSArray 快速求总和、最大值、最小值、平均值
+ (NSString *)caculateArray:(NSArray *)array
{
    CGFloat sum = [[array valueForKeyPath:@"@sum.floatValue"] floatValue];
    CGFloat avg = [[array valueForKeyPath:@"@avg.floatValue"] floatValue];
    CGFloat max =[[array valueForKeyPath:@"@max.floatValue"] floatValue];
    CGFloat min =[[array valueForKeyPath:@"@min.floatValue"] floatValue];
    NSLog(@"%fn%fn%fn%f",sum,avg,max,min);
    return [NSString stringWithFormat:@"%f",sum];
}

  • 9. 验证身份证
+ (BOOL)checkIdentityCardNo:(NSString*)value {
    value = [value stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
    NSInteger length =0;
    if (!value) {
        return NO;
    }else {
        length = value.length;
        if (length !=15 && length !=18) {
            return NO;
        }
    }
    // 省份代码
    NSArray *areasArray =@[@"11",@"12", @"13",@"14", @"15",@"21", @"22",@"23", @"31",@"32", @"33",@"34", @"35",@"36", @"37",@"41", @"42",@"43", @"44",@"45", @"46",@"50", @"51",@"52", @"53",@"54", @"61",@"62", @"63",@"64", @"65",@"71", @"81",@"82", @"91"];
    NSString *valueStart2 = [value substringToIndex:2];
    BOOL areaFlag =NO;
    for (NSString *areaCode in areasArray) {
        if ([areaCode isEqualToString:valueStart2]) {
            areaFlag =YES;
            break;
        }
    }
    if (!areaFlag) {
        return false;
    }
    NSRegularExpression *regularExpression;
    NSUInteger numberofMatch;
    NSInteger year =0;
    switch (length) {
        case 15:
            year = [[value substringWithRange:NSMakeRange(6,2)] integerValue] +1900;
            if (year %4 ==0 || (year 0 ==0 && year %4 ==0)) {
                regularExpression = [[NSRegularExpression alloc]initWithPattern:@"^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}$"
                                                                       options:NSRegularExpressionCaseInsensitive
                                                                         error:nil];//测试出生日期的合法性
            }else {
                regularExpression = [[NSRegularExpression alloc]initWithPattern:@"^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}$"
                                                                       options:NSRegularExpressionCaseInsensitive
                                                                         error:nil];//测试出生日期的合法性
            }
            numberofMatch = [regularExpression numberOfMatchesInString:value                                                 options:NSMatchingReportProgress
                           range:NSMakeRange(0, value.length)];
            if(numberofMatch >0) {
                return YES;
            }else {
                return NO;
            }
        case 18:
            year = [value substringWithRange:NSMakeRange(6,4)].intValue;
            if (year %4 ==0 || (year 0 ==0 && year %4 ==0)) {
                regularExpression = [[NSRegularExpression alloc]initWithPattern:@"^[1-9][0-9]{5}19[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}[0-9Xx]$"
options:NSRegularExpressionCaseInsensitive                                                                     error:nil];//测试出生日期的合法性
            }else {
                regularExpression = [[NSRegularExpression alloc]initWithPattern:@"^[1-9][0-9]{5}19[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}[0-9Xx]$"                                                                      options:NSRegularExpressionCaseInsensitive                                                                     error:nil];//测试出生日期的合法性
            }
            numberofMatch = [regularExpression numberOfMatchesInString:value                                                 options:NSMatchingReportProgress                                                     range:NSMakeRange(0, value.length)];
            if(numberofMatch >0) {
                int S = ([value substringWithRange:NSMakeRange(0,1)].intValue + [value substringWithRange:NSMakeRange(10,1)].intValue) *7 + ([value substringWithRange:NSMakeRange(1,1)].intValue + [value substringWithRange:NSMakeRange(11,1)].intValue) *9 + ([value substringWithRange:NSMakeRange(2,1)].intValue + [value substringWithRange:NSMakeRange(12,1)].intValue) *10 + ([value substringWithRange:NSMakeRange(3,1)].intValue + [value substringWithRange:NSMakeRange(13,1)].intValue) *5 + ([value substringWithRange:NSMakeRange(4,1)].intValue + [value substringWithRange:NSMakeRange(14,1)].intValue) *8 + ([value substringWithRange:NSMakeRange(5,1)].intValue + [value substringWithRange:NSMakeRange(15,1)].intValue) *4 + ([value substringWithRange:NSMakeRange(6,1)].intValue + [value substringWithRange:NSMakeRange(16,1)].intValue) *2 + [value substringWithRange:NSMakeRange(7,1)].intValue *1 + [value substringWithRange:NSMakeRange(8,1)].intValue *6 + [value substringWithRange:NSMakeRange(9,1)].intValue *3;
                int Y = S ;
                NSString *M =@"F";
                NSString *JYM =@"10X98765432";
                M = [JYM substringWithRange:NSMakeRange(Y,1)];// 判断校验位
                if ([M isEqualToString:[value substringWithRange:NSMakeRange(17,1)]]) {
                    return YES;// 检测ID的校验位
                }else {
                    return NO;
                }
            }else {
                return NO;
            }
        default:
            return false;
    }

Search

    Table of Contents