ContextMenu没有弹出长按

Question

长按单击列表视图中的列表项时,不会弹出上下文菜单.我已经扩展了基本适配器并使用了视图持有者来实现带有textviews和图像按钮的自定义列表.

adapter = new MyClickableListAdapter(this, R.layout.timeline, mObjectList);
       list.setAdapter(adapter);
       registerForContextMenu(list);  

onCreateContextMenu的实现

  @Override
 public void onCreateContextMenu(ContextMenu menu, View v,
   ContextMenuInfo menuInfo) {
  // TODO Auto-generated method stub
  super.onCreateContextMenu(menu, v, menuInfo);

  Log.d(TAG, "Entering Context Menu");

   menu.setHeaderTitle("Context Menu");

  menu.add(Menu.NONE, DELETE_ID, Menu.NONE, "Delete")
  .setIcon(R.drawable.icon);
 }

listview的XML就在这里

 <ListView
    android:id="@+id/list"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    />

我已经尝试了很多天了.我认为不可能为这样的自定义列表视图注册Context-menu.如果我错了,请纠正我(可能带有示例代码).

现在我正在考虑向列表项添加一个按钮,它会在单击它时显示一个菜单.是否可以通过其他方式使用Dialogs？

任何帮助将非常感激..

Answer 1

当列表视图具有复选框,radioButton等可聚焦项时,会出现这样的问题.要在可聚焦项目的列表项的布局中解决此问题,请包括:

android:focusable="false";

Answer 2

你为什么不用ListActivity？

在我的ListActivity中,我有:

@Override
protected void onCreate(Bundle savedInstanceState) {
    /* setContentView() and all stuff that happens in this method */
    registerForContextMenu(getListView());
}

@Override
public void onCreateContextMenu(ContextMenu menu, View v,
        ContextMenuInfo menuInfo) {
    super.onCreateContextMenu(menu, v, menuInfo);
    AdapterView.AdapterContextMenuInfo info;
    try {
        info = (AdapterView.AdapterContextMenuInfo) menuInfo;
    } catch (ClassCastException e) {
        Log.e(TAG, "bad menuInfo", e);
    return;
    }

    Something something = (Subway) getListAdapter().getItem(info.position);
    menu.setHeaderTitle(something.getName());
    menu.setHeaderIcon(something.getIcon());
    menu.add(0, CONTEXT_MENU_SHARE, 0, "Do something!");
}

@Override
public boolean onMenuItemSelected(int featureId, MenuItem item) {
    AdapterView.AdapterContextMenuInfo info;
    try {
        info = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo();
    } catch (ClassCastException e) {
        Log.e(TAG, "bad menuInfo", e);
        return false;
    }

    switch (item.getItemId()) {
        case DO_SOMETHING:
            /* Do sothing with the id */
            Something something = getListAdapter().getItem(info.position);
            return true;
    }