onListItemClick不会(总是)使用ListActivity进行调用

时间:2011-08-20 01:39:43

标签: android listactivity

我使用ListActivity来显示从xml布局文件中膨胀的视图。当我最初在列表中显示此视图时,我通过将目标视图的visible属性设置为View.GONE来隐藏视图的一部分。在onListItemClick方法中,我将此“隐藏”视图的可见性设置为View.GONE(如果可见)。在下一次单击时,我想再次隐藏视图。为此,我检测视图的可见性,如果它是View.VISIBLE,则将其更改为View.GONE。

当隐藏视图的可见性为View.GONE并且在点击时正确显示隐藏视图时,我的代码执行onListItemClick方法。但是,当视图的可见性设置为View.VISIBLE时,它不会执行onListItemClick方法。

我知道这种情况适合使用ExpandableListActivity,但由于其他无法解决的问题,我无法使用它!

这是(部分相关的)代码:

public class MyListActivity extends ListActivity implements OnClickListener {
// images that depict whether part of the view is visible or not
private Drawable imgUp, imgDown;

    private class MyOrderAdapter extends ArrayAdapter<Order> {

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
    View v = convertView;
            if (v == null) {
        LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        // infalte this view from xml
        v = vi.inflate(R.layout.brief_order, null);

        // display down arrow key depicting that more is available to be
        // displayed when a user clicks on it.
        ImageView arrow = (ImageView) v.findViewById(R.id.imgArrow);

        // get a reference to the table layout for details
        // which should not be displayed initially
        TableLayout tb = (TableLayout) v.findViewById(R.id.view_detail);

        // DO NOT DISPLAY PART OF THE VIEW INITIALLY    
        tb.setVisibility(View.GONE);
    }

    // code to initialize the text filed values in the view v
    return v;
    }


    // onListItemClick
    @Override
    protected void onListItemClick(ListView l, View v, int position, long id) {
        super.onListItemClick(l, v, position, id);

        Log.d("MyList", "item click called");

        // RETRIEVE THE detail view
        TableLayout tb = (TableLayout) v.findViewById(R.id.view_detail);
    if(tb.getVisibility() == View.GONE) { 
        tb.setVisibility(View.VISIBLE);
        img.setImageDrawable(imgUp);
    }
    else {
        img.setImageDrawable(imgDown);
        tb.setVisibility(View.GONE);
    }
}

// rest of the code
}

感谢。

欢呼声

1 个答案:

答案 0 :(得分:0)

但为了以防万一,您必须将ListView中的图片和其他项目设置为focusable,而不会调用onListItemClick方法。