Android 共享首选项使用关联菜单保存Listview项

我有一个上下文菜单栏，它有两个图标……当我单击“保存”图标时，我想将我在列表视图中选中的所有项目存储在SharedReferences中；当我单击“加载”图标时，我想所有选中的项目都以高亮显示的形式显示在列表中

图标在OnActionItemClicked中声明为菜单项

任何想法都将不胜感激

我的班级：

public class UserContacts extends ActionBarActivity {

    SimpleCursorAdapter mAdapter;
    MatrixCursor mMatrixCursor;
    ListView listview;
    int count = 0;
    SharedPreferences prf;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_user_contacts);

        // The contacts from the contacts content provider is stored in this cursor
        mMatrixCursor = new MatrixCursor(new String[] { "_id","name","photo","details"} );

        // Adapter to set data in the listview
        mAdapter = new SimpleCursorAdapter(getBaseContext(),
                R.layout.lv_layout,
                null,
                new String[] { "name","photo","details"},
                new int[] { R.id.tv_name,R.id.iv_photo,R.id.tv_details}, 0);

        // Getting reference to listview
        final ListView lstContacts = (ListView) findViewById(R.id.lst_contacts);

        // Setting the adapter to listview
        lstContacts.setAdapter(mAdapter);

        // Creating an AsyncTask object to retrieve and load listview with contacts
        ListViewContactsLoader listViewContactsLoader = new ListViewContactsLoader();

        // Starting the AsyncTask process to retrieve and load listview with contacts
        listViewContactsLoader.execute();

        //Selecting and highlighting the elements in the listview
        //Creating the context menu and the options for it
        listview = (ListView) findViewById(R.id.lst_contacts);
        listview.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE_MODAL);
        listview.setMultiChoiceModeListener(new AbsListView.MultiChoiceModeListener() {
            @Override
            public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked) {
                try
                {
                    final int checkedCount = listview.getCheckedItemCount();
                    mode.setTitle("Contacts: " + checkedCount);

                    if (checked)
                    {
                        count = count+1;
                        listview.getChildAt(position).setBackgroundColor(Color.parseColor("#6DCAEC"));
                    }
                    else
                    {
                        count = checkedCount;
                        listview.getChildAt(position).setBackgroundColor(Color.parseColor("#E7E8E9"));
                    }

                }
                catch (Exception e) {
                    e.printStackTrace();
                }
            }

            @Override
            public boolean onCreateActionMode(ActionMode mode, Menu menu) {

                MenuInflater inflater = mode.getMenuInflater();
                inflater.inflate(R.menu.contact_context_menu, menu);

                return true;
            }

            @Override
            public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
                return false;
            }

            @Override
            public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
                switch (item.getItemId()) {
                    case R.id.delete_id:
                        Toast.makeText(getBaseContext(), count + " Contacts Deselected", Toast.LENGTH_SHORT).show();
                        count = 0;
                        mode.finish();
                    case R.id.save_id:
                        Toast.makeText(getBaseContext(), count + " Contacts Saved", Toast.LENGTH_SHORT).show();
                        count = 0;
                        mode.finish();
                    case R.id.load_id:
                        Toast.makeText(getBaseContext(), count + " Contacts Loaded", Toast.LENGTH_SHORT).show();
                        count = 0;
                        mode.finish();

                }
                return false;
            }

            @Override
            public void onDestroyActionMode(ActionMode mode) {

            }
        });

    }

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你的代码怎么了？@Apurva…正如你所看到的，我正在调用contact.contract类中的数据…更靠近底部的是，当用户长时间单击时，会出现一个上下文菜单，我可以根据我单击的操作项执行各种任务…我的问题是保存和加载…我选择的要存储的项从SharedReferences中检索…目前我在SharefReferences上什么都没有，因为我不知道该怎么做？一个有起点的解释会更好吗？