//遍历界面上的控件 fubin.pan  LinearLayout sLinerLayout = (LinearLayout)findViewById(R.id.layout_scr);  for (int i = 0; i < sLinerLayout.getChildCount(); i++) {      View v=sLinerLayout.getChildAt(i);      if ( v instanceof RadioGroup){          RadioGroup mRadioGroup = (RadioGroup)sLinerLayout.getChildAt(i);          //根据ID获取RadioButton的实例                           RadioButton rb = (RadioButton)questionitemlist2.this.findViewById(mRadioGroup.getCheckedRadioButtonId());          if (rb.getTag(R.id.tag_toend).toString().equals(""))//判断ToEnd监听          {                        }else if(rb.getTag(R.id.tag_tonext).toString().equals(""))//判断ToNext监听          {                        }      }    }