- (CGFloat)tableView:(UITableView *)tableView estimatedHeightForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSNumber *height = [self.heightAtIndexPath objectForKey:indexPath];
if (height)
{
return height.floatValue;
}
else
{
return 100;
}
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return UITableViewAutomaticDimension;
}
- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
NSNumber *height = @(cell.frame.size.height);
[self.heightAtIndexPath setObject:height forKey:indexPath];
}
其中self.heightAtIndexPath是自己声明的属性 用来缓存高度用的。
详细请了解 http://www.jianshu.com/p/64f0e1557562
