由网友(逗神无敌！)分享简介：有什么办法获得单选数组的形式（或集合）在Android RadioGroup中的？我想个别的收听者添加到单选按钮，但我不认为遍历其中的任何明显的方法。Is there any way of getting an array (or a collection) of the RadioButtons in an An...

有什么办法获得单选数组的形式（或集合）在Android RadioGroup中的？我想个别的收听者添加到单选按钮，但我不认为遍历其中的任何明显的方法。

Is there any way of getting an array (or a collection) of the RadioButtons in an Android RadioGroup? I would like to add individual listeners to radio buttons but I don't see any obvious way of iterating over them.

推荐答案

这应该做的伎俩：

        int count = radioGroup.getChildCount();
        ArrayList<RadioButton> listOfRadioButtons = new ArrayList<RadioButton>();
        for (int i=0;i<count;i++) {
            View o = radioGroup.getChildAt(i);
            if (o instanceof RadioButton) {
                listOfRadioButtons.add((RadioButton)o);
            }
        }
        Log.d(TAG,"you have "+listOfRadioButtons.size()+" radio buttons");