Cell自适应高度

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// 1.设置内容最大显示高度其中宽度是跟contentLabel宽度一样

CGSize size = CGSizeMake(300, 1000);

// 2.NSStringDrawingUsesLineFragmentOrigin 按行计算内容高度
// 3.创建存放字体的字典,字体大小要与contentlabel字体大小一致

NSDictionary *dic = [NSDictionary dictionaryWithObject:[UIFont systemFontOfSize:15] forKey:NSFontAttributeName];// key处固定

CGRect frame = [text boundingRectWithSize:size options:NSStringDrawingUsesLineFragmentOrigin attributes:dic context:nil];

+(CGFloat)heightForContent:(NSString *)text
{
// 1.设置内容最大显示高度其中宽度是跟contentLabel宽度一样

CGSize size = CGSizeMake(300, 1000);

// 2.NSStringDrawingUsesLineFragmentOrigin 按行计算内容高度
// 3.创建存放字体的字典,字体大小要与contentlabel字体大小一致

NSDictionary *dic = [NSDictionary dictionaryWithObject:[UIFont systemFontOfSize:15] forKey:NSFontAttributeName];// key处固定

CGRect frame = [text boundingRectWithSize:size options:NSStringDrawingUsesLineFragmentOrigin attributes:dic context:nil];
return frame.size.height;

}

图片

[super layoutSubviews];
CGFloat picHeight = self.MyViewImage.image.size.height * self.contentView.frame.size.width / self.MyViewImage.image.size.width;

NSDictionary *dic = [NSDictionary dictionaryWithObjectsAndKeys:[UIFont systemFontOfSize:14],NSFontAttributeName, nil];
CGRect rect = [self.MyLabel.text boundingRectWithSize:CGSizeMake(375, 400) options:NSStringDrawingUsesLineFragmentOrigin attributes:dic context:nil];
self.MyViewImage.frame = CGRectMake(0, 0, self.contentView.frame.size.width, picHeight);
self.MyLabel.frame = CGRectMake(0, picHeight, self.contentView.frame.size.width, rect.size.height);

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