常用iOS-oc工具方法总结
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//// AICommonHelper.m// TJCMClient//// Created by 赵梁 on 16/6/30.// Copyright © 2016年 asiainfo. All rights reserved.//#import "AICommonHelper.h"#import <ifaddrs.h>#import <arpa/inet.h>@implementation AICommonHelper//1. 获取磁盘总空间大小+ (CGFloat)diskOfAllSizeMBytes{ CGFloat size = 0.0; NSError *error; NSDictionary *dic = [[NSFileManager defaultManager] attributesOfFileSystemForPath:NSHomeDirectory() error:&error]; if (error) { NSLog(@"error: %@", error.localizedDescription); }else { NSNumber *number = [dic objectForKey:NSFileSystemSize]; size = [number floatValue]/1024/1024; } return size;}//2. 获取磁盘可用空间大小+ (CGFloat)diskOfFreeSizeMBytes{ CGFloat size = 0.0; NSError *error; NSDictionary *dic = [[NSFileManager defaultManager] attributesOfFileSystemForPath:NSHomeDirectory() error:&error]; if (error) { NSLog(@"error: %@", error.localizedDescription); }else { NSNumber *number = [dic objectForKey:NSFileSystemFreeSize]; size = [number floatValue]/1024/1024; } return size;}//3. 获取指定路径下某个文件的大小+ (long long)fileSizeAtPath:(NSString *)filePath{ NSFileManager *fileManager = [NSFileManager defaultManager]; if (![fileManager fileExistsAtPath:filePath]) { return 0; } return [[fileManager attributesOfItemAtPath:filePath error:nil] fileSize];}//4. 获取文件夹下所有文件的大小+ (long long)folderSizeAtPath:(NSString *)folderPath{ NSFileManager *fileManager = [NSFileManager defaultManager]; if (![fileManager fileExistsAtPath:folderPath]) { return 0; } NSEnumerator *filesEnumerator = [[fileManager subpathsAtPath:folderPath] objectEnumerator]; NSString *flieName; long long folderSize = 0; while ((flieName = [filesEnumerator nextObject]) != nil) { NSString *filePath = [folderPath stringByAppendingPathComponent:flieName]; folderSize += [self fileSizeAtPath:filePath]; } return folderSize;}//5. 获取字符串(或汉字)首字母+ (NSString*)firstCharacterWithString:(NSString*)string{ NSMutableString *str = [NSMutableString stringWithString:string]; CFStringTransform((CFMutableStringRef)str, NULL, kCFStringTransformMandarinLatin, NO); CFStringTransform((CFMutableStringRef)str, NULL, kCFStringTransformStripDiacritics, NO); NSString *pingyin = [str capitalizedString]; return [pingyin substringFromIndex:1];}//6. 将字符串数组按照元素首字母顺序进行排序分组+ (NSDictionary *)dictionaryOrderByCharacterWithOriginalArray:(NSArray *)array{ if (array.count == 0) { return nil; } for (id obj in array) { if (![obj isKindOfClass:[NSString class]]) { return nil; } } UILocalizedIndexedCollation *indexedCollation = [UILocalizedIndexedCollation currentCollation]; NSMutableArray *objects = [NSMutableArray arrayWithCapacity:indexedCollation.sectionTitles.count]; //创建27个分组数组 for (NSInteger i = 0; i < indexedCollation.sectionTitles.count; i++) { NSMutableArray *obj = [NSMutableArray array]; [objects addObject:obj]; } //按字符顺序进行分组 NSInteger lastIndex = -1; for (id obj in array) { NSInteger index = [indexedCollation sectionForObject:obj collationStringSelector:@selector(uppercaseString)]; [[objects objectAtIndex:index] addObject:obj]; lastIndex = index; } //去掉空数组 for (NSMutableArray *obj in objects) { if (obj.count==0) { [objects removeObject:obj]; } } NSMutableArray *keys = [NSMutableArray arrayWithCapacity:indexedCollation.sectionTitles.count]; //获取索引字母 for (NSMutableArray *obj in objects) { NSString *str = obj[0]; NSString *key = [self firstCharacterWithString:str]; [keys addObject:key]; } NSMutableDictionary *dic = [NSMutableDictionary dictionary]; [dic setObject:objects forKey:keys]; return dic; //使用如下:// NSArray *arr = @[@"guangzhou",@"shanghai",@"北京",@"天津",@"河南"];// NSDictionary *dic = [self dictionaryOrderByCharacterWithOriginalArray:arr];// NSLog(@"\n\ndic:%@",dic);}//7. 获取当前时间//format:@"yyyy-MM-dd HH:mm:ss" @"yyyy年MM月dd日 HH时mm分ss秒"+ (NSString *)currentDateWithFormat:(NSString *)format{ return [self stringFromDate:[NSDate date] withFormat:format];}+ (NSString *)stringFromDate:(NSDate *)date withFormat:(NSString *)format{ NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init]; [dateFormatter setDateFormat:format]; return [dateFormatter stringFromDate:date];}+ (NSDate *)dateFromString:(NSString *)dateString withFormat:(NSString *)format{ NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init]; [dateFormatter setDateFormat:format]; return [dateFormatter dateFromString:dateString];}//8. 计算上次日期距离现在多久, 如 xx 小时前、xx 分钟前等+ (NSString *)timeIntervalFromLastTime:(NSString *)lastTime lastTimeFormate:(NSString *)lastTimeFormate toCurrentTime:(NSString *)currentTime currentTimeFormate:(NSString *)currentTimeFormate{ NSDate *lastDate = [self dateFromString:lastTime withFormat:lastTimeFormate]; NSDate *currentDate = [self dateFromString:currentTime withFormat:currentTimeFormate]; return [self timeIntervalFromLastTime:lastDate toCurrentTime:currentDate];}+ (NSString *)timeIntervalFromLastTime:(NSDate *)lastTime toCurrentTime:(NSDate *)currentTime{ NSTimeZone *timeZone = [NSTimeZone systemTimeZone]; NSDate *lastDate = [lastTime dateByAddingTimeInterval:[timeZone secondsFromGMTForDate:lastTime]]; NSDate *currentDate = [currentTime dateByAddingTimeInterval:[timeZone secondsFromGMTForDate:currentTime]]; NSInteger intevalTime = [currentDate timeIntervalSinceReferenceDate]-[lastDate timeIntervalSinceReferenceDate]; //秒，分，时，天，月，年 NSInteger minutes = intevalTime/60; NSInteger hours = intevalTime/60/60; NSInteger day = intevalTime/60/60/24; NSInteger month = intevalTime/60/60/24/30; NSInteger year = intevalTime/60/60/24/365; if (minutes <= 10) { return @"刚刚"; }else if (minutes < 60){ return [NSString stringWithFormat:@"%ld分钟前",(long)minutes]; }else if (hours < 24){ return [NSString stringWithFormat:@"%ld小时前",(long)minutes]; }else if (day < 30){ return [NSString stringWithFormat:@"%ld天前",(long)minutes]; }else if (month < 12){ return [self stringFromDate:lastDate withFormat:@"M月d日"]; }else if (year>=1){ return [self stringFromDate:lastDate withFormat:@"yyyy年M月d日"]; } return @"";}//9. 判断手机号码格式是否正确+ (BOOL)valiMobile:(NSString *)mobile{ mobile = [mobile stringByReplacingOccurrencesOfString:@" " withString:@""]; if (mobile.length != 11) { return NO; }else { //移动号段正则表达式 NSString *CM_NUM = @"^((13[4-9])|(15[0-2,7-9])|(178)|(18[2-4,7-8]))\\d{8}|(1705)\\d{7}$"; //联通号段正则表达式 NSString *CU_NUM = @"^((13[0-2])|(145)|(15[5-6])|(176)|(18[5,6]))\\d{8}|(1709)\\d{7}$"; //移动号段正则表达式 NSString *CT_NUM = @"^((133)|(153)|(177)|(18[0,1,9]))\\d{8}$"; NSPredicate *pred_CM_NUM = [NSPredicate predicateWithFormat:@"SELF MATCH %@",CM_NUM]; BOOL isMatch_CM_NUM = [pred_CM_NUM evaluateWithObject:mobile]; NSPredicate *pred_CU_NUM = [NSPredicate predicateWithFormat:@"SELF MATCH %@",CU_NUM]; BOOL isMatch_CU_NUM = [pred_CU_NUM evaluateWithObject:mobile]; NSPredicate *pred_CT_NUM = [NSPredicate predicateWithFormat:@"SELF MATCH %@",CT_NUM]; BOOL isMatch_CT_NUM = [pred_CT_NUM evaluateWithObject:mobile]; if (isMatch_CM_NUM||isMatch_CT_NUM||isMatch_CU_NUM) { return YES; }else { return NO; } }}//10. 判断邮箱格式是否正确+ (BOOL)valiEmail:(NSString *)email{ NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}"; NSPredicate *emailPred = [NSPredicate predicateWithFormat:@"SELF MATCH %@",emailRegex]; return [emailPred evaluateWithObject:email];}//11. 将十六进制颜色转换为 UIColor 对象/*! * @author 赵梁, 16-07-01 00:07:18 * * @brief 12. 对图片进行滤镜处理 * * @param image 图片 * @param name 滤镜 * CIPhotoEffectInstant [84] = "CIPhotoEffectChrome" [85] = "CIPhotoEffectFade" [86] = "CIPhotoEffectInstant" [87] = "CIPhotoEffectMono" [88] = "CIPhotoEffectNoir" [89] = "CIPhotoEffectProcess" [90] = "CIPhotoEffectTonal" [91] = "CIPhotoEffectTransfer" * @return <#return value description#> * * @since 2.0.0 */+ (UIImage *)filterWithOriginalImage:(UIImage *)image filterName:(NSString *)name{ CIContext *context = [CIContext contextWithOptions:nil]; CIImage *inputImage = [[CIImage alloc] initWithImage:image]; CIFilter *filter = [CIFilter filterWithName:name]; [filter setValue:inputImage forKey:kCIInputImageKey]; CIImage *result = [filter valueForKey:kCIOutputImageKey]; CGImageRef cgImage = [context createCGImage:result fromRect:[result extent]]; UIImage *resultImage = [UIImage imageWithCGImage:cgImage]; CGImageRelease(cgImage); return resultImage;}/*! * @author 赵梁, 16-07-01 00:07:02 * * @brief 13. 对图片进行模糊处理 * * @param image 原生图片 * @param name 模糊处理 * @param radius 模糊半径 * * @return 图片 * * @since 2.0.0 */+ (UIImage *)blurWithOriginalImage:(UIImage *)image blurName:(NSString*)name radius:(NSInteger)radius{ CIContext *context = [CIContext contextWithOptions:nil]; CIImage *inputImage = [[CIImage alloc] initWithImage:image]; CIFilter *filter; if (name.length != 0) { filter = [CIFilter filterWithName:name]; [filter setValue:inputImage forKey:kCIInputImageKey]; if (![name isEqualToString:@"CIMedianFilter"]) { [filter setValue:@(radius) forKey:@"inputRadius"]; } CIImage *result = [filter valueForKey:kCIOutputImageKey]; CGImageRef cgImage = [context createCGImage:result fromRect:[result extent]]; UIImage *resultImage = [UIImage imageWithCGImage:cgImage]; CGImageRelease(cgImage); return resultImage; }else { return nil; }}/*! * @author 赵梁, 16-07-01 01:07:22 * * @brief 14. 调整图片饱和度、亮度、对比度 * * @param image 目标图片 * @param saturation 饱和度 * @param brightness 亮度 -1.0 ~ 1.0 * @param contrast 对比度 * * @return <#return value description#> * * @since 2.0.0 */+ (UIImage *)colorControlsWithOriginalImage:(UIImage *)image saturation:(CGFloat)saturation brightness:(CGFloat)brightness contrast:(CGFloat)contrast{ CIContext *context = [CIContext contextWithOptions:nil]; CIImage *inputImage = [[CIImage alloc] initWithImage:image]; CIFilter *filter = [CIFilter filterWithName:@"CIColorControls"];; [filter setValue:inputImage forKey:kCIInputImageKey]; [filter setValue:@(saturation) forKey:@"inputSaturation"]; [filter setValue:@(brightness) forKey:@"inputBrightness"]; [filter setValue:@(contrast) forKey:@"inputContrast"]; CIImage *result = [filter valueForKey:kCIOutputImageKey]; CGImageRef cgImage = [context createCGImage:result fromRect:[result extent]]; UIImage *resultImage = [UIImage imageWithCGImage:cgImage]; CGImageRelease(cgImage); return resultImage;}/*! * @author 赵梁, 16-07-01 01:07:19 * * @brief //15. 创建一张实时模糊效果 View (毛玻璃效果) * ios 8.0 以后可用 * @param frame <#frame description#> * * @return <#return value description#> * * @since 2.0.0 */+ (UIVisualEffectView *)effectViewWitFrame:(CGRect)frame{ UIBlurEffect *effect = [UIBlurEffect effectWithStyle:UIBlurEffectStyleLight]; UIVisualEffectView *effectView = [[UIVisualEffectView alloc] initWithEffect:effect]; effectView.frame = frame; return effectView;}//16. 全屏截图+ (UIImage *)shotScreen{ UIWindow *window = [UIApplication sharedApplication].keyWindow; UIGraphicsBeginImageContext(window.bounds.size); UIImage *image = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); return image;}//17. 截取一张 view 生成图片+ (UIImage *)shotWithView:(UIView*)view{ UIGraphicsBeginImageContext(view.bounds.size); [view.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage *image = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); return image;}//18. 截取view中某个区域生成一张图片+ (UIImage *)shotWithView:(UIView*)view scope:(CGRect)scope{ CGImageRef imageRef = CGImageCreateWithImageInRect([self shotWithView:view].CGImage, scope); UIGraphicsBeginImageContext(scope.size); CGContextRef context = UIGraphicsGetCurrentContext(); CGRect rect = CGRectMake(0, 0, scope.size.width, scope.size.height); CGContextTranslateCTM(context, 0, rect.size.height);//下移 CGContextScaleCTM(context, 1, -1);//上翻 CGContextDrawImage(context, rect, imageRef); UIImage *image = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); CGImageRelease(imageRef); CGContextRelease(context); return image;}//19. 压缩图片到指定尺寸大小+ (UIImage *)compressOriginalImage:(UIImage *)image toSize:(CGSize)size{ UIImage *resultImage = image; UIGraphicsBeginImageContext(size); [resultImage drawInRect:CGRectMake(0, 0, size.width, size.height)]; UIGraphicsEndImageContext(); return resultImage;}//20. 压缩图片到指定文件大小+ (NSData *)compressOriginalImage:(UIImage *)image toMaxDataSizeKBytes:(CGFloat)size{ NSData *data = UIImageJPEGRepresentation(image, 1); CGFloat dataKBytes = data.length/1000.0f; CGFloat maxQuality = 0.9f; CGFloat lastData = dataKBytes; while (dataKBytes > size && maxQuality > 0.01f) { maxQuality = maxQuality - 0.01f; data = UIImageJPEGRepresentation(image, maxQuality); dataKBytes = data.length/1000.0; if (lastData == dataKBytes) { break; }else { lastData = dataKBytes; } } return data;}//21. 获取设备 IP 地址+ (NSString *)getIPAddress{ NSString *address = @"Error"; struct ifaddrs *interfaces = NULL; struct ifaddrs *temp_addr = NULL; int success = 0; // retrieve the current interfaces - returns 0 on success success = getifaddrs(&interfaces); if (success == 0) { // Loop through linked list of interfaces temp_addr = interfaces; while(temp_addr != NULL) { if(temp_addr->ifa_addr->sa_family == AF_INET) { // Check if interface is en0 which is the wifi connection on the iPhone if([[NSString stringWithUTF8String:temp_addr->ifa_name] isEqualToString:@"en0"]) { // Get NSString from C String address = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)]; } } temp_addr = temp_addr->ifa_next; } } // Free memory freeifaddrs(interfaces); return address;}//22. 判断字符串中是否含有空格+ (BOOL)isHaveSpaceInString:(NSString *)string{ if ([string rangeOfString:@" "].location != NSNotFound) { return YES; }else { return NO; }}//23. 判断字符串中是否含有某个字符串+ (BOOL)isHaveString:(NSString *)string1 inString:(NSString *)string2{ if ([string2 rangeOfString:string1].location != NSNotFound) { return YES; }else { return NO; }}//24. 判断字符串中是否含有中文+ (BOOL)isHaveChineseString:(NSString *)string{ for (NSInteger i=0; i<string.length; i++) { int a = [string characterAtIndex:i]; if (a > 0x4e00 && a < 0x9fff) { return YES; } } return NO;}//25. 判断字符串是否全部为数字+ (BOOL)isAllNum:(NSString *)string{ unichar c; for (NSInteger i=0; i<string.length; i++) { c = [string characterAtIndex:i]; if (!isdigit(c)) { return NO; } } return YES;}//26. 绘制虚线+ (UIView *)createDashedLineWithFrame:(CGRect)lineFrame lineLeght:(int)lenght lineSpacing:(int)spacing lineColor:(UIColor *)color{ UIView *dashedLine = [[UIView alloc] initWithFrame:lineFrame]; dashedLine.backgroundColor = [UIColor clearColor]; CAShapeLayer *shapeLayer = [CAShapeLayer layer]; shapeLayer.bounds = dashedLine.bounds; shapeLayer.position = CGPointMake(CGRectGetWidth(dashedLine.frame)/2, CGRectGetHeight(dashedLine.frame)); shapeLayer.fillColor = [UIColor clearColor].CGColor; shapeLayer.strokeColor = color.CGColor; shapeLayer.lineWidth = CGRectGetHeight(dashedLine.frame); shapeLayer.lineJoin = kCALineJoinRound; shapeLayer.lineDashPattern = @[[NSNumber numberWithInt:lenght],[NSNumber numberWithInt:spacing]]; CGMutablePathRef path = CGPathCreateMutable(); CGPathMoveToPoint(path, NULL, 0, 0); CGPathAddLineToPoint(path, NULL, CGRectGetWidth(dashedLine.frame), 0); shapeLayer.path = path; CGPathRelease(path); [dashedLine.layer addSublayer:shapeLayer]; return dashedLine;}@end 0 0
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