自定义ActionBar Listview选定的颜色

Question

I'm using a custom action bar so i have create an xml file namedthemes into @drawable/menu/themes.xml with my code:

  <?xml version="1.0" encoding="utf-8"?>
<resources>
<!-- the theme applied to the application or activity -->
<style name="CustomActionBarTheme"
     parent="@android:style/Theme.Holo.Light.DarkActionBar">
<item name="android:actionBarStyle">@style/MyActionBar</item>
<item name="android:windowNoTitle">false</item>
<item name="android:windowFullscreen">true</item>
</style>

<!-- ActionBar styles -->
<style name="MyActionBar"
     parent="@android:style/Widget.Holo.Light.ActionBar.Solid.Inverse">
<item name="android:background">#2d73c4</item>
</style>

</resources>

Also i create a .xml file name actionbar placed into @drawable/menu/actionbar.xml with my code:

<menu xmlns:android="http://schemas.android.com/apk/res/android">

<item android:id="@+id/search"
    android:showAsAction="always"
    android:title="Αναζήτηση"
    android:icon="@drawable/ic_action_search"/>

</menu>

So i want when i use a listview, on my selected item to be changed color. I tried this line in my themes.xml but it didnt work.

 <item name="android:colorActivatedHighlight">@android:color/transparent</item>

Answer 1

I assume that you're using a Toolbar or android.support.v7.widget.Toolbar widget for your action bar, then I take a example for using Toolbar widget here:

<?xml version="1.0" encoding="utf-8" ?>
<Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:minHeight="?android:attr/actionBarSize"
    android:background="?android:attr/colorPrimary"
    android:theme="@android:style/ThemeOverlay.Material.Dark.ActionBar" />

Then in you page which includes the ListView for changing the background color of action bar, you can include this Toolbar :

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
  <include
        android:id="@+id/toolbar"
        layout="@layout/toolbar" />

  <ListView
    android:id="@+id/lv"
    android:layout_height="match_parent"
    android:layout_width="match_parent" />

</LinearLayout>

Then in code behind find this Toolbar by its id and subscribe the ItemSelected event of listview:

public Toolbar toolbar;

protected override void OnCreate(Bundle bundle)
{
    base.OnCreate(bundle);
    SetContentView(Resource.Layout.Main);

    toolbar = FindViewById<Toolbar>(Resource.Id.toolbar);
    SetActionBar(toolbar);

    ListView lv = (ListView)FindViewById(Resource.Id.lv);

    lv.ItemSelected += Lv_ItemSelected;
}

Finally set the background color for example like this:

private void Lv_ItemSelected(object sender, AdapterView.ItemSelectedEventArgs e)
{

   toolbar.SetBackgroundColor(Color.BlueViolet);
}

Of course you can find the item's info in the AdapterView.ItemSelectedEventArgs , and according to the args to set the color.