Question

我尝试使用MvxAutoCompleteTextView，但它在Debug中遇到以下输出：

mvx：诊断：3,57等待
开始

只要我在模拟器中启动我的应用程序（Android 4.3，硬件键盘禁用），我就会看到Wait starting for消息，当我输入时，不会显示任何建议。

我的ViewModel：

public class FirstViewModel : MvxViewModel
{
  public FirstViewModel()
  {
    ClearResults();
  }

  public string[] AutoCompleteSuggestions { get; set; }

  private string _currentTextHint;
  public string CurrentTextHint 
  {
    get { return _currentTextHint; }
    set 
    {
      _currentTextHint = value;
      base.RaisePropertyChanged(() => CurrentTextHint);
      if (CurrentTextHint == null || CurrentTextHint.Length < 3)
        ClearResults();
      else
        BeginSearchAsync();
    }
  }

  private void ClearResults()
  {
    AutoCompleteSuggestions = new string[0];
    base.RaisePropertyChanged(() => AutoCompleteSuggestions);
  }

  private async void BeginSearchAsync()
  {
    await Task.Delay(2000);
    AutoCompleteSuggestions = new string[] { "test", "ok" };
    base.RaisePropertyChanged(() => AutoCompleteSuggestions);
  }

  public string Selected { get; set; }
  public string CurrentText { get; set; }
}

FirstView.axml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:local="http://schemas.android.com/apk/res-auto"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <MvxAutoCompleteTextView
        android:id="@+id/autoCustomerName"
        android:inputType="textPersonName"
        android:layout_width="366.7dp"
        android:layout_height="49.1dp"
        android:paddingLeft="5dp"
        android:completionThreshold="3"
        android:hint="hint..."
        android:gravity="left|center_vertical"
        local:MvxBind="ItemsSource AutoCompleteSuggestions; PartialText CurrentTextHint; SelectedObject Selected; Text CurrentText;" />
</LinearLayout>

Answer 1

首先，确保您的AutoCompleteSuggestions的setter触发它的PropertyChanged事件。当您使用属性的默认模板时，我不确定是否会发生这种情况。

其次，您需要在CurrentTextHint属性中执行额外的步骤。这是一个有效的链接。

https://github.com/JimWilcox3/MvxAutoCompleteTest

MvxAutoCompleteTextView卡在＆＃39;等待开始＆＃39;

1 个答案: