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当我单击SearchView时,单击事件不会触发(xamarin.android)

searchview click xamarin.android

ProfileForStack4 · 技术社区 · 6 年前

我有以下内容 SearchView

<SearchView
    android:minWidth="25px"
    android:minHeight="25px"
    android:background="@drawable/rounded_border"
    android:clickable="true"
    android:iconifiedByDefault="false"
    android:focusable="false"
    android:layout_weight="1"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:id="@+id/searchViewCustomers" />

当我单击它时,我希望活动的一个小部件成为 visible 另一个变成 gone 就像这样:

searchView.Click += delegate
{
    customersRecyclerView.Visibility = ViewStates.Visible;
    customerDataContainer.Visibility = ViewStates.Gone;
};

但是当我运行应用程序并点击 searchView 小部件不会变成 visible/gone 当我打开断点时 serachView.Click ,程序执行永远不会停止。当我点击 搜索视图 小装置?

1 回复 | 直到 6 年前

FreakyAli 6 年前

我可以这样做,将焦点更改事件添加到SearchView:

 searchView.FocusChange += SearchView_FocusChange;
 private void SearchView_FocusChange(object sender, View.FocusChangeEventArgs e)
    {
              if(searchView.HasFocus)
              {
               //Visibility code
              }
    }

首先,我将使用AppCompat SearchView实现兼容性,如下所示:

<android.support.v7.widget.SearchView
android:minWidth="25px"
android:minHeight="25px"
android:background="@drawable/rounded_border"
android:clickable="true"
android:iconifiedByDefault="false"
android:focusable="false"
android:layout_weight="1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:id="@+id/searchViewCustomers" />

如果这不起作用,我将在查询焦点更改侦听器上使用类似的方法:

searchView.SetOnQueryTextFocusChangeListener(new FocusChangeListenerClass());

public class FocusChangeListenerClass : Java.Lang.Object, IOnFocusChangeListener
{
    public void OnFocusChange(Android.Views.View v, bool hasFocus)
    {

    }
}

Activity:

public class ClientsActivity : Activity
{
    .......
    .......
    Android.Widget.SearchView searchView;
    RecyclerView customersRecyclerView;
    ScrollView customerDataContainer;
    .......
    protected override void OnCreate(Bundle savedInstanceState)
    {
         ........
         ........
         searchView.SetOnQueryTextFocusChangeListener(new FocusChangeListenerClass(ref customersRecyclerView, ref customerDataContainer));
    }
}

FocusChangeListenerClass.cs:

public class FocusChangeListenerClass : Java.Lang.Object, IOnFocusChangeListener
{
    RecyclerView customersRecyclerView;
    ScrollView customerDataContainer;
    public FocusChangeListenerClass(ref RecyclerView recyclerView, ref ScrollView dataContainer)
    {
        customersRecyclerView = recyclerView;
        customerDataContainer = dataContainer;
    }

    public void OnFocusChange(Android.Views.View v, bool hasFocus)
    {
        if(hasFocus == true)
        {
            customersRecyclerView.Visibility = ViewStates.Visible;
            customerDataContainer.Visibility = ViewStates.Gone;
        }
        else
        {
            customersRecyclerView.Visibility = ViewStates.Gone;
            customerDataContainer.Visibility = ViewStates.Visible;
        }
    }

}

<SearchView> <android.support.v7.widget.SearchView> .axml