IOS 自定义TableViewCell 加载过多的问题

ios TableView TableViewCell 自定义单元格单元格重用我使用了单元格的重用机制了，但是我当我在tableview cellForRowAtIndexPath 的方法中打印indexPath.row时，发现重用机制不仅没有起作用，还乱套了，下面是我打印出的日志，datalist 里面总共只用12条，正常不是应该屏幕能够加载几条就使用几条么？求解答，万分感谢，需要的话我可以提供源代码。 2015-05-01 20:45:32.697 Custom Cell[3729:125567] indexpath = 0 2015-05-01 20:45:32.698 Custom Cell[3729:125567] indexpath = 1 2015-05-01 20:45:32.699 Custom Cell[3729:125567] indexpath = 2 2015-05-01 20:45:32.700 Custom Cell[3729:125567] indexpath = 3 2015-05-01 20:45:32.701 Custom Cell[3729:125567] indexpath = 4 2015-05-01 20:45:32.702 Custom Cell[3729:125567] indexpath = 5 2015-05-01 20:45:32.703 Custom Cell[3729:125567] indexpath = 6 2015-05-01 20:45:32.704 Custom Cell[3729:125567] indexpath = 7 2015-05-01 20:45:32.704 Custom Cell[3729:125567] indexpath = 8 2015-05-01 20:45:32.705 Custom Cell[3729:125567] indexpath = 9 2015-05-01 20:45:32.706 Custom Cell[3729:125567] indexpath = 10 2015-05-01 20:45:32.707 Custom Cell[3729:125567] indexpath = 11 2015-05-01 20:45:32.708 Custom Cell[3729:125567] indexpath = 0 2015-05-01 20:45:32.709 Custom Cell[3729:125567] indexpath = 1 2015-05-01 20:45:32.710 Custom Cell[3729:125567] indexpath = 2 2015-05-01 20:45:32.710 Custom Cell[3729:125567] indexpath = 3 2015-05-01 20:45:32.711 Custom Cell[3729:125567] indexpath = 4 2015-05-01 20:45:32.712 Custom Cell[3729:125567] indexpath = 5 2015-05-01 20:45:32.713 Custom Cell[3729:125567] indexpath = 6 2015-05-01 20:45:32.714 Custom Cell[3729:125567] indexpath = 7 2015-05-01 20:45:32.714 Custom Cell[3729:125567] indexpath = 8 2015-05-01 20:45:32.715 Custom Cell[3729:125567] indexpath = 9 2015-05-01 20:45:32.716 Custom Cell[3729:125567] indexpath = 10 2015-05-01 20:45:32.717 Custom Cell[3729:125567] indexpath = 11 2015-05-01 20:45:32.717 Custom Cell[3729:125567] indexpath = 0 2015-05-01 20:45:32.718 Custom Cell[3729:125567] indexpath = 1 2015-05-01 20:45:32.719 Custom Cell[3729:125567] indexpath = 2 2015-05-01 20:45:32.720 Custom Cell[3729:125567] indexpath = 3 2015-05-01 20:45:32.721 Custom Cell[3729:125567] indexpath = 4 2015-05-01 20:45:32.722 Custom Cell[3729:125567] indexpath = 5 2015-05-01 20:45:32.723 Custom Cell[3729:125567] indexpath = 6 2015-05-01 20:45:32.723 Custom Cell[3729:125567] indexpath = 7 2015-05-01 20:45:32.724 Custom Cell[3729:125567] indexpath = 8 2015-05-01 20:45:32.725 Custom Cell[3729:125567] indexpath = 9 2015-05-01 20:45:32.726 Custom Cell[3729:125567] indexpath = 10 2015-05-01 20:45:32.726 Custom Cell[3729:125567] indexpath = 11 2015-05-01 20:45:32.728 Custom Cell[3729:125567] indexpath = 0 2015-05-01 20:45:32.728 Custom Cell[3729:125567] indexpath = 1 2015-05-01 20:45:32.729 Custom Cell[3729:125567] indexpath = 2 2015-05-01 20:45:32.730 Custom Cell[3729:125567] indexpath = 3 2015-05-01 20:45:32.731 Custom Cell[3729:125567] indexpath = 4 2015-05-01 20:45:32.732 Custom Cell[3729:125567] indexpath = 5 2015-05-01 20:45:32.732 Custom Cell[3729:125567] indexpath = 6 2015-05-01 20:45:32.733 Custom Cell[3729:125567] indexpath = 7 2015-05-01 20:45:32.734 Custom Cell[3729:125567] indexpath = 8 2015-05-01 20:45:32.735 Custom Cell[3729:125567] indexpath = 9 2015-05-01 20:45:32.736 Custom Cell[3729:125567] indexpath = 10 2015-05-01 20:45:32.737 Custom Cell[3729:125567] indexpath = 11 2015-05-01 20:45:32.738 Custom Cell[3729:125567] indexpath = 0 2015-05-01 20:45:32.739 Custom Cell[3729:125567] indexpath = 1 2015-05-01 20:45:32.739 Custom Cell[3729:125567] indexpath = 2 2015-05-01 20:45:32.740 Custom Cell[3729:125567] indexpath = 3 2015-05-01 20:45:32.741 Custom Cell[3729:125567] indexpath = 4 2015-05-01 20:45:32.742 Custom Cell[3729:125567] indexpath = 5 2015-05-01 20:45:32.743 Custom Cell[3729:125567] indexpath = 6 2015-05-01 20:45:32.743 Custom Cell[3729:125567] indexpath = 7 2015-05-01 20:45:32.744 Custom Cell[3729:125567] indexpath = 8 2015-05-01 20:45:32.745 Custom Cell[3729:125567] indexpath = 9 2015-05-01 20:45:32.746 Custom Cell[3729:125567] indexpath = 10 2015-05-01 20:45:32.746 Custom Cell[3729:125567] indexpath = 11 2015-05-01 20:45:32.747 Custom Cell[3729:125567] indexpath = 0 2015-05-01 20:45:32.748 Custom Cell[3729:125567] indexpath = 0 2015-05-01 20:45:32.750 Custom Cell[3729:125567] indexpath = 1 2015-05-01 20:45:32.751 Custom Cell[3729:125567] indexpath = 1 2015-05-01 20:45:32.751 Custom Cell[3729:125567] indexpath = 2 2015-05-01 20:45:32.752 Custom Cell[3729:125567] indexpath = 2
	兄弟们如需看代码，我上传到百度云盘上了，公链：http://pan.baidu.com/s/1eQzX0H0
40分	引用 1 楼 Hitourlee 的回复: 兄弟们如需看代码，我上传到百度云盘上了，公链：http://pan.baidu.com/s/1eQzX0H0 你不能在 heightForRowAtIndexPath 调用 cellForRowAtIndexPath 方法的，因为 tableView 加载数据的时候， heightForRowAtIndexPath 会对数据源的每条数据都调用一次，预先把 Cell 的高度获取到，而且你只为了获取 Cell 的高度，就创建出一个完全用不着的Cell，这样不合理， Cell 的创建开销很大的，如果你要做 Cell 动态高度的话，你可以看看我的博客：http://blog.csdn.net/zhangao0086/article/details/7165041
	多谢回复，一语中的，一直没注意这个地方，你一提我马上醒悟了。分给你了。
	引用 2 楼 zhangao0086 的回复: Quote: 引用 1 楼 Hitourlee 的回复: 兄弟们如需看代码，我上传到百度云盘上了，公链：http://pan.baidu.com/s/1eQzX0H0 你不能在 heightForRowAtIndexPath 调用 cellForRowAtIndexPath 方法的，因为 tableView 加载数据的时候， heightForRowAtIndexPath 会对数据源的每条数据都调用一次，预先把 Cell 的高度获取到，而且你只为了获取 Cell 的高度，就创建出一个完全用不着的Cell，这样不合理， Cell 的创建开销很大的，如果你要做 Cell 动态高度的话，你可以看看我的博客：http://blog.csdn.net/zhangao0086/article/details/7165041 你好，分数当时定少了，我发个追加帖子，给你加另外的45分，链接http://bbs.csdn.net/topics/391027561，多谢。

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