Android - ListView onItemClick无效

Question

我正在创建一个Android应用并试图将一个点击监听器添加到列表视图中。该类实现AdapterView.OnItemClickListener，onItemClick方法无效。我使用simpleadapter。

相关守则。

list = (ListView) findViewById(R.id.SummaryListView);
list.setOnItemClickListener(this);


@Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

        Toast.makeText(getApplicationContext(), "Position : " + position, Toast.LENGTH_SHORT).show();

    }

适配器代码

Cursor cursor = dbHelper.fetchAllProjects();
        dataAdapter = new SimpleCursorAdapter(context, R.layout.summary_list_item,cursor,from, to, 0);
//
        list.setAdapter(dataAdapter);