Android 切换按钮的保存和加载状态

我试图保存我动态创建的切换按钮的状态。我无法保存当前状态。如果我更改应用程序中的活动，然后返回，则切换按钮的状态将恢复为默认状态。这是我的密码。有人能帮我吗

private class CustomAdapter extends ArrayAdapter<HashMap<String, Object>>
{


    public CustomAdapter(Context context, int textViewResourceId, 
            ArrayList<HashMap<String, Object>> Strings){
        super(context,textViewResourceId, Strings);
    }

    List<Paper> papers_list = BetterActivity.masterConference.getPapers();


    private class ViewHolder
    {
        TextView paperTitle, author;
    }



    ViewHolder viewHolder;



    public View getView(final int position, View convertView, final ViewGroup parent){


        if(convertView == null)
        {
            convertView = inflater.inflate(R.layout.paper_row_item, null);
            viewHolder=new ViewHolder();

            viewHolder.paperTitle=(TextView) convertView.findViewById(R.id.paperTitle);
            viewHolder.author=(TextView) convertView.findViewById(R.id.author);
            addFavorite=(ToggleButton) convertView.findViewById(R.id.ToggleButton01);

            convertView.setTag(viewHolder);
        }
        else
            viewHolder = (ViewHolder) convertView.getTag();

        viewHolder.paperTitle.setText(searchResults.get(position).get("title").toString());
        viewHolder.author.setText(searchResults.get(position).get("author").toString());

        LoadPreferences();

        final List<Paper> pape = masterConference.getUser().getFavoritePapers();

        addFavorite.setOnClickListener(new View.OnClickListener() {

            Paper p = papers_list.get(position);
            @Override
            public void onClick(View v) {

                boolean on = ((ToggleButton) v).isChecked();
                System.out.println(parent.getChildAt(position).getId() + " " + position);
                SharedPreferences preference = getPreferences(MODE_PRIVATE);
                if(on)
                {
                    masterConference.addPaperToFavorites(p);
                    SharedPreferences.Editor editor = preference.edit();
                    editor.putBoolean(p.getTitle(),true);
                    editor.commit();
                    //SavePreferences(p.getTitle(), position);
                    Toast.makeText(getBaseContext(), "esta verde, " + p.getTitle() + "size " + pape.size(), Toast.LENGTH_SHORT).show();
                }
                else
                {
                    masterConference.removePaperFromFavorites(p);
                    SharedPreferences.Editor editor = preference.edit();
                    editor.putBoolean(p.getTitle(),false);
                    editor.commit();
                    Toast.makeText(getBaseContext(), "esta branco", Toast.LENGTH_SHORT).show();
                }
                // TODO Auto-generated method stub

            }
        });

        return convertView;

    }
}  
private void LoadPreferences(){
    SharedPreferences preferences = getPreferences(MODE_PRIVATE);

    for(int i = 0; i < papers_list.size(); i++)
    {
    String epa = papers_list.get(i).getTitle();
    boolean teste = preferences.getBoolean(epa, false);

    if(teste == true)
        addFavorite.setChecked(true);
    else
        addFavorite.setChecked(false);
    }

}
}

---

有人能告诉我怎么了吗？我保存并加载，但这不起任何作用。

为什么不在启动下一个活动之前将ToggleButton的状态传递给它？或者将其设置为全局静态成员，但如果活动被销毁并重新创建，这将不会有多大帮助。您可能只想将按钮的状态存储在SharedReferences中，并在任何您喜欢的地方访问它