onItemClick不被调用上ListActivity [英] onItemClick not being invoked on ListActivity

问题描述

我有一个类从 ListActivity 延伸并实现了 OnItemClickListener

I have a class that extends from ListActivity and implements OnItemClickListener

这是一个非常简单的测试类，这个想法是，我在列表中选择一个项目，它显示了在选定项目吐司。

It's a very simple test class, the idea is that I select an item on the list, and it shows the selected item on a Toast.

我可以看到列表通常在模拟器上，我也可以看到单击该项目的影响，但没有任何反应。

I can see the list normally on the emulator, and I can also see the effects of clicking in the item, but then nothing happens.

我不认为该事件被解雇了，因为我看到LogCat中什么都没有，这里的code：

I don't think the event is being fired, because I see nothing on LogCat, here's the code:

public class CarsListActivity extends ListActivity implements
        OnItemClickListener {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setListAdapter(new ArrayAdapter<String>(this,
                android.R.layout.simple_list_item_1, listCars()));
    }

    private List<String> listCars() {   
        return Arrays.asList("Ferrari", "Lamborghini", "Porsche");
    }

    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        TextView textView = (TextView) view;
        String message = "Selected car: " + textView.getText();
        Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
    }

}

的 Activitiy 的定义是这样的的Andr​​oidManifest.xml 文件：

The Activitiy is defined like this on the AndroidManifest.xml file:

<activity android:name=".CarsListActivity" />

有什么我失踪？

我研究这个错误，我发现很多的解决方案说，这涉及可点击和布局可聚焦性属性。但我使用Android的自身 android.R.layout.simple_list_item_1 ，所以我真的不知道我怎么能解决这个问题。

I researched this error and I found many solutions saying that this concerns clickability and focusability attributes on the layout. But I'm using Android's own android.R.layout.simple_list_item_1 so I don't really know how I could fix it.

我缺少一些配置？

推荐答案

您需要注册OnItemClickListener（活动）是这样的：

You need to register the OnItemClickListener (the activity) like this :

getListView().setOnItemClickListener(this)

只需实现OnItemClickListener接口不足以

Simply implementing the OnItemClickListener interface is not sufficient

这篇关于onItemClick不被调用上ListActivity的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！