ios学习笔记： TableView利用label调整cell高度

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tableView中：

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {

//模拟数据

MC_EatCommentModel* model = [self.commentItemsobjectAtIndex:indexPath.row];

//根据labei设置高度

CGSize size =CGSizeMake(260,1000);

CGSize labelSize = [model.commentsizeWithFont:[UIFontsystemFontOfSize:12.0]constrainedToSize:sizelineBreakMode:NSLineBreakByWordWrapping];

return labelSize.height +44;

}

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

staticNSString *CellIdentifier =@"MC_EatCommentCell";

BOOL nibsRegistered =NO;

if (!nibsRegistered) {

UINib *nib = [UINibnibWithNibName:NSStringFromClass([MC_EatCommentCellclass])bundle:nil];

[tableView registerNib:nibforCellReuseIdentifier:CellIdentifier];

nibsRegistered = YES;

}

MC_EatCommentCell *cell = (MC_EatCommentCell *)[tableViewdequeueReusableCellWithIdentifier:CellIdentifier];

self.commentModel = [self.commentItemsobjectAtIndex:indexPath.row];

cell.userName.text=self.commentModel.userName;

cell.label_time.text=self.commentModel.time;

//自适应高度，传入cell中

[cell setCommentText:self.commentModel.comment];

cell.m_userModel =self.commentModel;

[cell.iconsetBackgroundImage:[UIImageimageNamed:self.commentModel.icon]forState:UIControlStateNormal];

return cell;

}

cell中：

-(void)setCommentText:(NSString*)text{

self.comment.text = text;

//设置label的最大行数，这里设为0，而用 size.height去限制高度。eg当设置为3时 label会自动调节高度，不再紧贴着label上方

self.comment.numberOfLines =0;

CGSize size =CGSizeMake(260,1000);

CGSize labelSize = [self.comment.textsizeWithFont:self.comment.fontconstrainedToSize:sizelineBreakMode:NSLineBreakByWordWrapping];

self.comment.frame =CGRectMake(self.comment.frame.origin.x,self.comment.frame.origin.y, labelSize.width, labelSize.height);

self.comment.textAlignment =NSTextAlignmentLeft;

}

参考：http://blog.csdn.net/swingpyzf/article/details/18093959

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