关于使用xib的自定义UITableViewCell中修改其中view的问题及解决

有一个如下所示的需求

//控制器

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

{

    FavoriteItemCell *cell = [tableViewdequeueReusableCellWithIdentifier:@"FavoriteItemCell"];

   if (cell == nil)

    {

        cell = (FavoriteItemCell *)[[NSBundlemainBundle] loadNibNamed:@"FavoriteCell"owner:selfoptions:nil][0];

    }

    cell.model =_arrayOfData[indexPath.section];

    

   return cell;

}

自定义cell

@interface FavoriteItemCell :UITableViewCell

@property (weak, nonatomic) IBOutletUILabel *title_1;

@property (weak, nonatomic) IBOutletUILabel *title_2;

@property (weak, nonatomic) IBOutletUILabel *playNum;

@property(nonatomic,retain)FavoriteItem * model;

@end

//

//  FavoriteItemCell.m

//  LearningEnglish

//

//  Created by w on 14-7-14.

//  Copyright (c) 2014年 xxx.com. All rights reserved.

//

#import "FavoriteItemCell.h"

@implementation FavoriteItemCell

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier

{

   self = [superinitWithStyle:style reuseIdentifier:reuseIdentifier];

   if (self) {

        // Initialization code

    }

    return self;

}

- (void)awakeFromNib

{

    // Initialization code

    

  

}

-(void)setModel:(FavoriteItem *)model

{

   _model = model;

   //[self UpdateUI]   尝试过在此次对里面的子视图进行修改，但初次显示的内容尺寸无法修改，当这个cell被重用时可以达到修改效果，也深度在此时通过定时器延时进行修改，可解决，可有时会有延时的效果，不完美...

}

//重载如下方法也无法达到修改效果

//-(void)layoutSubviews

//{

//    [self layoutSubviews];

//    [self UpdateUI];

//}

//此处调用UpdateUI完美解决

-(void)drawRect:(CGRect)rect

{

    [selfUpdateUI];   //此处对视图内的尺寸大小修改即可解决

    

}

-(void)UpdateUI

{

    

    self.title_1.text =_model.title_1;

    self.title_2.text =_model.title_2;

    self.playNum.text = [NSStringstringWithFormat:@"%d次",_model.playNum];

    UIFont *font =self.title_1.font;

    NSMutableDictionary *dict = [[NSMutableDictionaryalloc] init];

    [dict setObject:fontforKey:NSFontAttributeName];

   

    CGRect rect = [_model.title_1boundingRectWithSize:CGSizeMake(300, 50)options:NSStringDrawingUsesLineFragmentOriginattributes:dict context:nil];

    

    self.title_1.frame =CGRectMake(self.title_1.frame.origin.x,self.title_1.frame.origin.y, rect.size.width,self.title_1.frame.size.height);

    CGRect frame =self.playNum.frame;

    frame.origin.x =self.title_1.frame.origin.x + rect.size.width + 5;

   self.playNum.frame = frame;

    

    self.playNum.backgroundColor = (_model.playNum != 0?[UIColor colorWithRed:254/255.0green:130/255.0 blue:30/255alpha:1]:[UIColorcolorWithRed:168/255.0 green:168/255.0blue:168/255.0 alpha:1]);

    

   

    NSLog(@"%@",self.title_1);

 

    

   

  

    

}

- (void)setSelected:(BOOL)selected animated:(BOOL)animated

{

    [supersetSelected:selected animated:animated];

    // Configure the view for the selected state

}

@end