Question

我的Listview工作正常，但我正在使用SearchView搜索列表视图中的项目。当我最初点击原始列表视图中的某个项目时，它会显示与所单击项目相关的对话框，但在搜索完成后，显示的对话框是错误的。更具体地说，它显示该位置的原始列表视图项的对话框。请帮忙

    public class ViewExpense extends ActionBarActivity implements AdapterView.OnItemClickListener,
        SearchView.OnQueryTextListener {

    ExpenseManager expenseManager;
    ExpenseCategoriesManager expenseCategoriesManager;
    CategoriesModel categoriesModel;
    CurrencyManager currencyManager;
    ArrayList<Expense> allExpenses;
    ArrayList<String> allTitles;
    String titlePosition;
    ArrayAdapter<String> adapter;
    ListView lv_View_expense;

    Dialog dialog;
    Expense expense;
    private ViewStub idEmpty;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_view_expense);

        //        Including back button to ACTION BAR
        android.support.v7.app.ActionBar actionBar = getSupportActionBar();
        actionBar.setDisplayHomeAsUpEnabled(true);


        init();

        allTitles = new ArrayList<String>();
        allExpenses = expenseManager.getAllExpenses();


        // Getting all the titles
        for (Expense expense : allExpenses) {
            allTitles.add(expense.getTitle());
        }


        adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, allTitles);
        lv_View_expense.setAdapter(adapter);
        lv_View_expense.setTextFilterEnabled(true);


        if (allTitles.isEmpty()) {
            idEmpty.setVisibility(View.INVISIBLE);
            Toast.makeText(ViewExpense.this, "Sorry - Add An Expense First", Toast.LENGTH_LONG).show();
        } else {
            idEmpty.setVisibility(View.VISIBLE);
        }

    }


    private void init() {
        lv_View_expense = (ListView) findViewById(R.id.lv_view_expense);
        expenseManager = new ExpenseManager(this);
        expenseCategoriesManager = new ExpenseCategoriesManager(this);
        lv_View_expense.setOnItemClickListener(this);
        currencyManager = new CurrencyManager(this);
        categoriesModel = new CategoriesModel();
        idEmpty = (ViewStub) findViewById(R.id.idEmpty);
        idEmpty.inflate();
    }

    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        titlePosition = allTitles.get(position);
        expense = expenseManager.getExpense(titlePosition);

        dialog = new Dialog(ViewExpense.this);
        dialog.setContentView(R.layout.expense_view_details);

        TextView tvTime, tvTitle, tvAmount, tvCategory, tvComment;

        tvTitle = (TextView) dialog.findViewById(R.id.tvViewTitle);
        tvAmount = (TextView) dialog.findViewById(R.id.tvViewAmount);
        tvCategory = (TextView) dialog.findViewById(R.id.tvViewCategory);
        tvComment = (TextView) dialog.findViewById(R.id.tvViewComment);
        tvTime = (TextView) dialog.findViewById(R.id.tvViewTime);

        dialog.setTitle(expense.getTitle() + " EXPENDITURE");
        tvTitle.setText(expense.getTitle());
        tvAmount.setText(currencyManager.getCurrency() + " " + expense.getAmount());

        tvCategory.setText(expense.getCategory());//**********************************************

        tvTime.setText("Created on " + expense.getDate() + " At  "
                + expense.getTime());
        tvComment.setText(expense.getlocation());

        //dialog.create();
        dialog.show();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_view_expense, menu);
        SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);

        SearchView searchView;
        searchView = (SearchView) menu.findItem(R.id.ViewSearch).getActionView();
        searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
        //searchView.setSubmitButtonEnabled(true);
        searchView.setOnQueryTextListener(this);

        searchView.setOnSearchClickListener(this);
        return super.onCreateOptionsMenu(menu);

    }


    @Override
    public boolean onQueryTextChange(String newText) {
        // this is your adapter that will be filtered
        if (TextUtils.isEmpty(newText)) {
            lv_View_expense.clearTextFilter();
        } else {
            lv_View_expense.setFilterText(newText);

        }

//         Toast.makeText(getApplicationContext(),(adapter)+"", Toast.LENGTH_LONG).show();
        return true;
    }

    @Override
    public boolean onQueryTextSubmit(String query) {
        // TODO Auto-generated method stub
        //Toast.makeText(getApplicationContext(),(adapter)+"", Toast.LENGTH_LONG).show();
        return false;
    }


    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        // if (id == R.id.action_settings) {
//            return true;
//        }

//            }

        switch (item.getItemId()) {
            case android.R.id.home:
                // app icon in action bar clicked; goto parent activity.
                this.finish();
                return true;
            case R.id.ViewSearch:

                return true;
            case R.id.mnView_help:
                Toast.makeText(ViewExpense.this, "Tap Expense to View Details", Toast.LENGTH_LONG).show();

                return true;
            default:


                return super.onOptionsItemSelected(item);

        }
    }

}

Answer 1

你在这里做错了

titlePosition = allTitles.get(position);
expense = expenseManager.getExpense(titlePosition);

因为它将从该位置提供原始列表中的数据。你必须使用适配器类的getItem方法。在该方法中传递位置，因为它已经过滤了数据。有关详情，请查看here

<强>更新

titlePosition = (String) adapter.getItem(position);
expense = expenseManager.getExpense(titlePosition);

试试这段代码。

使用onClick搜索Listview显示错误的结果

1 个答案: