jixin_new/shiku_im/ClassesNew/classes/messageVc/chatListModel.m

//
//  chatListModel.m
//  shiku_im
//
//  Created by os on 2020/6/29.
//  Copyright © 2020 Reese. All rights reserved.
//

#import "chatListModel.h"

@interface chatListModel()
@property (nonatomic,strong) NSMutableDictionary *cellHDic;
@end
@implementation chatListModel
MJCodingImplementation
-(void)setValue:(id)value forUndefinedKey:(NSString *)key{}


 -(CGFloat)cellHeight{
     
     if (!_cellHeight) {
          
         CGFloat textY=5;
         NSAttributedString *aStr = [[NSAttributedString alloc] initWithData:[self.content dataUsingEncoding:NSUnicodeStringEncoding] options:@{ NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType } documentAttributes:nil error:nil];
         CGSize size =  [aStr boundingRectWithSize:CGSizeMake(JX_SCREEN_WIDTH-40, MAXFLOAT) options:NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading context:nil].size;
         
         // 并不是高度计算不对，我估计是计算出来的数据是 小数，在应用到布局的时候稍微差一点点就不能保证按照计算时那样排列，所以为了确保布局按照我们计算的数据来，就在原来计算的基础上 取ceil值，再加1；
         CGFloat height = ceil(size.height) + 1;
         // cell的高度

         CGSize maxSize=CGSizeMake([UIScreen mainScreen].bounds.size.width-76, MAXFLOAT);
         CGFloat textH=[self.title boundingRectWithSize:maxSize options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:14 weight:UIFontWeightRegular]} context:nil].size.height;
         
         
         _cellHeight=textY+height+textH+10;
     }
     
     
     
     
     return _cellHeight+1;
     
     
 }
    
@end