Multi tool use

When I click SearchView, click event doesn't fire (Xamarin.Android)

I have the following SearchView

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" />


When I click on it I want one of the widgets of the activity to become visible and the other one to become gone like that:

visible

gone

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


But when I run the application and tap on the searchView the widgets doesn't become visible/gone and when I put break point on serachView.Click, program execution never stops there. How to make the widgets visible/gone when I tap on the searchView widget?

searchView

visible/gone

serachView.Click

searchView

1 Answer
1

The way I would do it is, add a focus change event to the searchview :

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


UPDATE :
First and foremost I would use the Appcompat Searchview for compatibility purpose, Something like this:

<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" />


Then I would try using the focus change listener(Same as Above).

If that does not work I would use on query focus change listener something like this:

searchView.SetOnQueryTextFocusChangeListener(new FocusChangeListenerClass());


And add the listener class something like this :

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

}
}


Update:

Activity:

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:

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;
}
}

}


There is no need to change <SearchView> to <android.support.v7.widget.SearchView> in the .axml file.

<SearchView>

<android.support.v7.widget.SearchView>

.axml

searchView

SearchView_FocusChange

customersRecyclerView.Visibility = ViewStates.Visible; customerDataContainer.Visibility = ViewStates.Gone;

FocusChangeListenerClass

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