c# - Xamarin Android 中的自动完成 TextView

Question

我是 Xamarin 的新手。我正在尝试将对象绑定(bind)到 Xamarin Android 中的 AutocompleteTextView。我能够附加适配器，但是当我在 AutoCompleteTextView 中键入文本时，对象按原样显示，而不是文本。我为 Item Click 添加了事件处理程序，并且能够获取我想要显示的值。以下是我的代码以及有关如何将值显示为建议的任何帮助或指示。

主要 Activity

公共(public)类 MainActivity : Activity { 整数计数 = 1;

    protected override void OnCreate (Bundle bundle)
    {
        base.OnCreate (bundle);

        // Set our view from the "main" layout resource
        SetContentView (Resource.Layout.Main);

        // Get our button from the layout resource,
        // and attach an event to it
        Button button = FindViewById<Button> (Resource.Id.myButton);

        //button.Text = 
        MainActivityModel Mv = new MainActivityModel();
        ArrayAdapter<AutoCompleteTextModel> adapter = new ArrayAdapter<AutoCompleteTextModel>  
            (this,Android.Resource.Layout.SimpleDropDownItem1Line,Mv.StationsList);

        AutoCompleteTextView actv = FindViewById<AutoCompleteTextView>(Resource.Id.source);

        actv.Adapter = adapter;
        //actv.Threshold = 1;

        actv.ItemClick += (object sender, AdapterView.ItemClickEventArgs e) => {
            actv.Text = Mv.StationsList[e.Position].StationName;
        }; 

        actv.TextChanged += (object sender, Android.Text.TextChangedEventArgs e) => {

            new ArrayAdapter (
                this, 
                Android.Resource.Layout.SimpleListItem1, 
                Mv.StationsList.FindAll (a => a.StationName.Contains(actv.Text)).ToArray ());
        };


        button.Click += delegate {
            button.Text = string.Format ("{0} clicks!", count++);
        };
    }
}

自动完成 TextView 模型

公共(public)类 AutoCompleteTextModel { 公共(public)字符串 StationName { get;放; } public int StationId { 得到;放;

    public AutoCompleteTextModel ()
    {
    }
}

公共(public)类 MainActivityModel { public List StationsList;

    public MainActivityModel ()
    {
        StationsList = new List<AutoCompleteTextModel> ();

        StationsList.Add (new AutoCompleteTextModel () {StationId = 1, StationName = "Chennai Beach"
        });
        StationsList.Add (new AutoCompleteTextModel () {StationId = 1, StationName = "Chennai Fort"
        });
        StationsList.Add (new AutoCompleteTextModel () {StationId = 1, StationName = "Chennai Park"
        });
        StationsList.Add (new AutoCompleteTextModel () {StationId = 1, StationName = "Chennai Egmore"
        });
        StationsList.Add (new AutoCompleteTextModel () {StationId = 1, StationName = "Chetpet"
        });
}

Answer 1

_objGeneralDetailProductType 是 AutoCompleteTextView 的对象类型

您可以尝试在自动完成中绑定(bind)列表，因为在我手中，我正在使用它并且工作正常。