// // RYCode.m // TianLing_App // // Created by 刘荣毅 on 2017/11/6. // Copyright © 2017年 Liu. All rights reserved. // #import "RYCode.h" @implementation RYCode /*! * @brief 把格式化的JSON格式的字符串转换成字典 * @param jsonString JSON格式的字符串 * @return 返回字典 */ + (NSDictionary *)dictionaryWithJsonString:(NSString *)jsonString { if (jsonString == nil) { return nil; } NSData *jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding]; NSError *err; NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:&err]; if(err) { NSLog(@"json解析失败:%@",err); return nil; } return dic; } + (NSString*)dictionaryToJson:(NSDictionary *)dic { NSError *parseError = nil; NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dic options:NSJSONWritingPrettyPrinted error:&parseError]; return [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding]; } //将image转成NSData,在进行base64加密 + (NSString *)imageBase64WithDataURL:(UIImage *)image { NSData *imageData =nil; NSString *mimeType =nil; //图片要压缩的比例,此处100根据需求,自行设置 CGFloat x =100 / image.size.height; if (x >1) { x = 1.0; } imageData = UIImageJPEGRepresentation(image, x); mimeType = @"image/jpeg"; return [NSString stringWithFormat:@"data:%@;base64,%@", mimeType, [imageData base64EncodedStringWithOptions:0]]; } #pragma mark- 图片转字符串 //图片转字符串 +(NSString *)UIImageToBase64Str:(UIImage* )image { NSData *data = UIImageJPEGRepresentation(image, 0.1); NSString *encodedImageStr = [data base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength]; return encodedImageStr; } //字符串转图片 +(UIImage *)Base64StrToUIImage:(NSString *)_encodedImageStr { NSData *_decodedImageData = [[NSData alloc] initWithBase64Encoding:_encodedImageStr]; UIImage *_decodedImage = [UIImage imageWithData:_decodedImageData]; return _decodedImage; } #pragma mark- JSon 与字典或者数组转化 // 将字典或者数组转化为JSON串 + (NSData *)toJSONData:(id)theData { NSError *error = nil; NSData *jsonData = [NSJSONSerialization dataWithJSONObject:theData options:NSJSONWritingPrettyPrinted error:nil]; if ([jsonData length]&&error== nil){ return jsonData; }else{ return nil; } } // 将JSON串转化为字典或者数组 + (id)toArrayOrNSDictionary:(NSData *)jsonData{ NSError *error = nil; id jsonObject = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingAllowFragments error:nil]; if (jsonObject != nil && error == nil){ return jsonObject; }else{ // 解析错误 return nil; } } #pragma mark- 时间格式 //时间转时间戳 +(NSInteger)timeSwitchTimestamp:(NSString *)formatTime andFormatter:(NSString *)format{ NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; [formatter setDateStyle:NSDateFormatterMediumStyle]; [formatter setTimeStyle:NSDateFormatterShortStyle]; [formatter setDateFormat:format]; //(@"YYYY-MM-dd hh:mm:ss") ----------设置你想要的格式,hh与HH的区别:分别表示12小时制,24小时制 NSTimeZone* timeZone = [NSTimeZone timeZoneWithName:@"Asia/Beijing"]; [formatter setTimeZone:timeZone]; NSDate* date = [formatter dateFromString:formatTime]; //------------将字符串按formatter转成nsdate //时间转时间戳的方法: NSInteger timeSp = [[NSNumber numberWithDouble:[date timeIntervalSince1970]] integerValue]; NSLog(@"将某个时间转化成 时间戳&&&&&&&timeSp:%ld",(long)timeSp); //时间戳的值 return timeSp; } //时间显示内容(聊天中的时间格式) +(NSString *)getDateDisplayString:(long ) miliSeconds{ NSLog(@"-时间戳--- %ld ----",miliSeconds); NSTimeInterval tempMilli = miliSeconds; // NSTimeInterval seconds = tempMilli/1000.0; NSTimeInterval seconds = tempMilli; NSDate *myDate = [NSDate dateWithTimeIntervalSince1970:seconds]; NSCalendar *calendar = [ NSCalendar currentCalendar ]; int unit = NSCalendarUnitDay | NSCalendarUnitMonth | NSCalendarUnitYear | NSCalendarUnitHour; NSDateComponents *nowCmps = [calendar components:unit fromDate:[ NSDate date ]]; NSDateComponents *myCmps = [calendar components:unit fromDate:myDate]; NSDateFormatter *dateFmt = [[NSDateFormatter alloc ] init ]; //2. 指定日历对象,要去取日期对象的那些部分. NSDateComponents *comp = [calendar components:NSCalendarUnitYear|NSCalendarUnitMonth|NSCalendarUnitDay|NSCalendarUnitWeekday fromDate:myDate]; if (nowCmps.year != myCmps.year) { dateFmt.dateFormat = @"yyyy-MM-dd hh:mm"; } else { if (nowCmps.day==myCmps.day) { dateFmt.AMSymbol = @"上午"; dateFmt.PMSymbol = @"下午"; dateFmt.dateFormat = @"aah:mm"; } else if((nowCmps.day-myCmps.day)==1) { dateFmt.AMSymbol = @"上午"; dateFmt.PMSymbol = @"下午"; dateFmt.dateFormat = @"昨天 aaah:mm"; } else { if ((nowCmps.day-myCmps.day) <=7) { dateFmt.AMSymbol = @"上午"; dateFmt.PMSymbol = @"下午"; switch (comp.weekday) { case 1: dateFmt.dateFormat = @"星期日 aaah:mm"; break; case 2: dateFmt.dateFormat = @"星期一 aaah:mm"; break; case 3: dateFmt.dateFormat = @"星期二 aaah:mm"; break; case 4: dateFmt.dateFormat = @"星期三 aaah:mm"; break; case 5: dateFmt.dateFormat = @"星期四 aaah:mm"; break; case 6: dateFmt.dateFormat = @"星期五 aaah:mm"; break; case 7: dateFmt.dateFormat = @"星期六 aaah:mm"; break; default: break; } }else { dateFmt.dateFormat = @"MM-dd hh:mm"; } } } return [dateFmt stringFromDate:myDate]; } @end