iOS常用的公共方法

秒速五厘米 2023-10-17 04:29 2阅读 0赞

一、磁盘

1、获取磁盘总空间大小

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2、获取磁盘可用空间大小

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二、沙盒

3、获取指定路径下某个文件的大小

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4、获取文件夹下所有文件的大小

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三、字符串

5、获取字符串(或汉字)首字母

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6、将字符串数组按照元素首字母顺序进行排序分组

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使用如下:

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输出结果如下:

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7、 判断字符串中是否含有空格

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8、判断字符串中是否含有某个字符串

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9、 判断字符串中是否含有中文

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10、判断字符串是否全部为数字

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四、时间

11、获取当前时间

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12、计算上次日期距离现在多久, 如 xx 小时前、xx 分钟前等

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使用如下:

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输出结果如下:

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五、手机号、邮箱验证

13、 判断手机号码格式是否正确

- (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;
        }
    }

14、判断邮箱格式是否正确

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- (BOOL)event_EmailAddress:(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];
    }

六、颜色获取

15、将十六进制颜色转换为 UIColor 对象

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七、图片处理

16、对图片进行滤镜处理

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17、对图片进行模糊处理

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18、调整图片饱和度、亮度、对比度

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19、压缩图片到指定尺寸大小

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20、压缩图片到指定文件大小

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21、创建一张实时模糊效果 View (毛玻璃效果)

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八、截图

22、全屏截图

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23、截取一张 view 生成图片

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24、截取view中某个区域生成一张图片

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九、获取IP

25、获取设备 IP 地址

需要先引入下头文件:

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代码:

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十、虚线

26、绘制虚线

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