自定义列表视图中使用复选框的问题 [英] Custom listview with checkbox problem

问题描述

我想创建一个自定义列表，其中将有复选框，让您从列表中选择多个项目。

I'm trying to create a custom list which will have checkboxes that allow you to select several items from the list.

将显示该复选框名单确定，但如果我检查复选框，然后再滚动等物品倒也检查清单。

The list with the checkboxes is displayed ok but if i check a checkbox and then scroll other items further down the list are also checked.

及其基本相同的问题，因为<一个href="http://groups.google.com/group/android-developers/browse_thread/thread/f46c24e955d1f6e2">here

Its basically the same problem as here

据我所知，它是与Android的方式回收的看法，但我不能看到如何解决这个问题！有人可以帮我吗？

I understand that it has something to do with the way android recycles the view but I cant see how to fix this! Can somebody help me???

感谢迈克 -

推荐答案

您需要一个数据结构来跟踪哪些行进行检查。这可能是简单的一个布尔[]检查。

You need a data structure to keep track of which rows are checked. This could be as simple as a bool[] checked.

在你的 getView ，确保您设置的复选框状态的内容检查[位置] 。你也应该<一个href="http://developer.android.com/reference/android/widget/CompoundButton.html#setOnCheckedChangeListener%28android.widget.CompoundButton.OnCheckedChangeListener%29"相对=nofollow>在 getView 您的复选框，设置OnCheckedChangedListener ，使他们与选中[位置] =器isChecked 。

In your getView, make sure that you set the checkbox state to the contents of checked[position]. You should also set an OnCheckedChangedListener on your check boxes in getView so that they update your data with checked[position] = isChecked.

是的，在的ListView 行被回收，所以一定要确保你离开之前，填充所有适当的数据行 getView 。

Yes, the rows in a ListView are recycled, so make sure to populate all the appropriate data for a row before you leave getView.

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