UILabel高度自適應(yīng)

NSString *textstr = @"這是一段很長很長很長很長很長很長很長很長很長很長很長很長很長很長很長很長很長很長很長很長很長很長這是一段很長很長很長很長很長很長很長很長很長很長很長很長長很長很長很長很長很長很長很長很長很長很長很長很長很長很長很長很長很長很長的文字";

UIFont *font = [UIFont fontWithName:@"Helvetica" size:14.f];
CGFloat height = [textstr boundingRectWithSize:CGSizeMake(self.view.bounds.size.width, MAXFLOAT) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName: font} context:nil].size.height;
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 64, self.view.bounds.size.width, height)];

//自己限制最多10行
label.numberOfLines = 10;
label.font = font;
label.textColor = [UIColor grayColor];
label.text = textstr;
[self.view addSubview:label];

就醬...

Paste_Image.png