Question

我正在使用VS 2012在Android应用上工作。实际上，我想实现这个目标：

// lv = My listView Name. 
lv.setOnItemClickListener(new OnItemClickListener() 
{ 
    public void onItemClick(AdapterView<?> myAdapter, View myView, int myItemInt, long mylng) 
    {      
        String selectedFromList =(String) (lv.getItemAtPosition(myItemInt));
    }
});

但是，我没有得到 setOnItemClickListener（）事件。原因是，我正在使用 Xamarin 在C＃中工作。我想获得 ListView 的选择值或项目。我怎么能这样做？

Answer 1

让您的活动实现ListView.IOnItemClickListener，如下所示：

public class SomeActivity: Activity, ListView.IOnItemClickListener

获取您的列表视图的反映：

LsitView LV = FindViewById<ListView>(Resource.Id.id_in_axml);

然后将OnItemClickListner设置为活动，因为我们要实现接口ListView.IOnItemClickListener

lstItems.OnItemClickListener = this;

最后将此添加到您的活动类：

public void OnItemClick(AdapterView parent, View view, int position, long id)
{
//whatever you need it to do goes here.
}

Answer 2

以下是完整的代码段：

    private List<String>namess;
    private ListView listvieww;
    protected override void OnCreate (Bundle bundle)
    {
        base.OnCreate (bundle);

        SetContentView (Resource.Layout.Main);

        listvieww = FindViewById<ListView> (Resource.Id.listView1);


        namess = new List<String>();

        namess.Add("Security Solution");
        namess.Add("software");
        namess.Add("hardware");
        ArrayAdapter<String> adapter = new ArrayAdapter<String> (this, Android.Resource.Layout.SimpleListItem1,namess);

        listvieww.Adapter = adapter;
        //listvieww.ItemClick += listView_ItemClick;


        listvieww.ItemClick += (object sender, Android.Widget.AdapterView.ItemClickEventArgs e) =>
        {
            string selectedFromList = listvieww.GetItemAtPosition(e.Position).ToString();

            Console.WriteLine( selectedFromList);
        };

    }

Answer 3

您可以使用ItemClick和委托来放置您的事件代码，如下所示：

lv.ItemClick += delegate(object sender, Android.Widget.AdapterView.ItemClickEventArgs e)
{
    //Your code here
}

使用VS 2012 C＃在Xamarin中选择Android Listview项目＃

3 个答案: