java - BaseAdapter OnItemClickListener 从未被调用

Question

我有一个自定义BaseAdapter对于我的ListView我在其中实现 AdapterView.OnItemClickListener .

问题是onItemClick(AdapterView<?>, View, int, long)方法从未被调用。我想我需要实现 interface在我的主要Activity而不是在我的 ListView 中自定义适配器。

MyListViewAdapter.java:

public class MyListViewAdapter extends BaseAdapter implements AdapterView.OnItemClickListener
{
    private Context context;
    private ArrayList<MyListViewRow> rowsList = new ArrayList<MyListViewRow>(); // All one row items

    private TextView a;


    public MyListViewAdapter(Context context,ArrayList<MyListViewRow> rowsList)
    {
        this.context = context;
        this.rowsList = rowsList;
    }

    @Override
    public int getCount()
    {
        return this.rowsList.size();
    }

    @Override
    public Object getItem(int position)
    {
        return this.rowsList.get(position);
    }

    @Override
    public long getItemId(int position)
    {
        return position;
    }

    /**
     * Returns a new row to display in the list view.
     *
     * Position - position of the current row.
     *
     */
    @Override
    public View getView(int position, View convertView, ViewGroup parent)
    {
        LayoutInflater layoutInflater = (LayoutInflater) this.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        /**
         * Inflating the root view and all his children and set them to a View Object.
         *
         */
        View row = layoutInflater.inflate(R.layout.list_view_row,null);

        // Get all the views in my row
        this.a = (TextView) row.findViewById(R.id.a_id;


        MyListViewRow myListViewRow = rowsList.get(position);

        // Set values to all the views in my row
        this.a.setText(myListViewRow.getA());



        return row;
    }


    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id)
    {
        Toast.makeText(context, "onItemClick LV Adapter called", Toast.LENGTH_LONG).show();

    }


} // End of MyListViewAdapter class

我说得对吗？

Answer 1

为什么适配器中会有一个 OnItemClickListener？!适配器内有 OnClickListener，或者最佳实践是将 OnItemClickListener 设置为 ListView 或您在 Activity/fragment 中使用的任何 AdapterView。按照您现在的做法，由于以下几个原因，它不会起作用:

1. 您没有为 View 设置监听器。
2. 您不能将 OnItemClickListener 设置为 TextView。
3. 将 onClickListener 设置为适配器类内的 TextView，意味着您必须单击 TextView 本身，否则，监听器将不会被调用。