ios根据内容设置cell的高度

// 根据文本高度来设置cell高度
-(CGFloat)tableView:(UITableView *)tableViewheightForRowAtIndexPath:(NSIndexPath *)indexPath{
NSString *textArray = [_textArray objectAtIndex:indexPath.row];
NSDictionary *attribute = @{NSFontAttributeName:[UIFont systemFontOfSize:15.0]};
CGSize textSize1 = [textArray boundingRectWithSize:CGSizeMake(ViewWidth, MAXFLOAT) options:NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingTruncatesLastVisibleLine attributes:attribute context:nil].size;

return textSize1.height+35;//让文本离cell有一定的距离显示,上7.5,下7.5

}