Android 无法获取小部件的标记

我认为这个产品应该随重量而变化

TextView weight = new TextView(getActivity());
        weight.setText(weight2);
        weight.setPadding(10, 10, 10, 10);
        product.setTag("weight");

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很抱歉，我现在添加了错误日志。第197行=**log.i（“sddddddddddd”，childView.getTag（）.toString（））**Thanx你救了我lahiru

 01-31 15:45:11.710: E/AndroidRuntime(15061): java.lang.NullPointerException
01-31 15:45:11.710: E/AndroidRuntime(15061):    at ceylon.linux.osrumsalespad.Stock_check_fragment$3.onClick(Stock_check_fragment.java:197)

TextView weight = new TextView(getActivity());
        weight.setText(weight2);
        weight.setPadding(10, 10, 10, 10);
        product.setTag("weight");

  TextView weight = new TextView(getActivity());
            weight.setText(weight2);
            weight.setPadding(10, 10, 10, 10);
            weight.setTag("weight");