未分配给列表视图项的字符串

Question

我正在尝试使用 strings.xml 文件中的一些字符串作为列表视图的项目名称，但在部署期间，我的应用程序不会 运行。我在 Internet 的许多区域中查找相关教程，但它们都只显示已硬编码的字符串。有谁知道我的代码有什么问题以及如何使用字符串而不是硬编码来修复它？

    public class FragmentLineChooserList extends android.support.v4.app.Fragment {

        ListView list_linechooser;

        String[] listContent = {
                getResources().getString(R.string.item_0),
                getResources().getString(R.string.item_1),
                getResources().getString(R.string.item_2)
        };

        private boolean mTwoPane;

        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
            View v = inflater.inflate(R.layout.fragment_line_chooser_list, container, false);

            list_linechooser = (ListView)v.findViewById(R.id.list_linechooser);
        MyColoringAdapter adapter = new MyColoringAdapter(getActivity(),listContent);
        list_linechooser.setAdapter(adapter);
       );

        return v;
    }

    private class MyColoringAdapter extends ArrayAdapter<String> {
        private final Context context;
        private final String[] values;

        public MyColoringAdapter(Context context, String[] values) {
            super(context, R.layout.list_item, values);
            this.context = context;
            this.values = values;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            LayoutInflater inflater = (LayoutInflater) context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            View rowView = inflater.inflate(R.layout.list_item, parent, false);
            TextView textView = (TextView) rowView.findViewById(R.id.list_item);
            textView.setText(values[position]);
            int textColorId = R.color.white; // Default color
            switch (position) {
                case 0:
                    textColorId = R.color.red; break;
                case 1:
                    textColorId = R.color.yellow; break;
                case 2:
                    textColorId = R.color.green; break;
            }
            textView.setTextColor(getResources().getColor(textColorId));
            return rowView;
        }
    }
}

Answer 1

喜欢

  String[] listContent = {
            getActivity().getResources().getString(R.string.item_0),
            getActivity().getResources().getString(R.string.item_1),
            getActivity().getResources().getString(R.string.item_2)
    };

在onCreateView(...)

之下