Android：如何使RadioGroup在ListView中正常工作？
我有一个 ListView，其中有一个 TextView 和一个 RadioGroup，每行有 4 个 RadioButtons 作为子项。 现在我可以在每一行中选择一个单选按钮。但是如果我滚动 ListView，我的选择就会消失或者无法正确显示。例如，我选择第一行中的RadioButton A，如果我滚动ListView然后再次返回到第一行，则RadioGroup中的RadioButtons都不会被选中，或者RadioButton C会被选中而不是A。 我该如何解决这个问题？我已经尝试了7天了，但仍然没有找到解决办法。有人可以帮助我吗？我将非常感激。
I have a ListView, which has a TextView and a RadioGroup with 4 RadioButtons as Children in each row.
Now i can select a RadioButton in each row. But if i scroll the ListView, my Selection is gone or it does not show correctly. For example, i choose the RadioButton A in the first row, if i scroll through the ListView and then go back to the first row again, either none of the RadioButtons in the RadioGroup is checked or RadioButton C is checked instead of A.
How can i fix this Problem? I have tried 7 days already, but still i find no solution. Can anybody help me? I'll be very appriciate of that.
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当在适配器上调用
getView()（或bindView()，如果您使用的是CursorAdapter）时，您需要设置RadioGroup。 Android 会回收行，并且不会为您跟踪这些RadioGroup状态。请参阅此处的示例项目，该项目具有
连续的RatingBar为通用技术。我的一本书中的这份免费摘录也涵盖了这一点。When
getView()(orbindView()if you are using aCursorAdapter) is called on your adapter, you need to set the state of theRadioGroup. Android recycles rows and is not going to track thoseRadioGroupstates for you.See here for a sample project that has a
RatingBarin a row for the general technique. This is also covered in this free excerpt from one my books.