Android : Queries regarding actionbar

I am trying to add background colour to my action bar..My manifest has fllowing activity declaration-

<activity
            android:name=".ui.LeagueSelect"
            android:label="INDIAN SPORTS LEAGUES"
            android:theme="@style/MyTheme2"></activity>

and my styles.xml has

 <style name="MyTheme2" parent="@style/Theme.AppCompat.Light">
        <item name="android:actionBarStyle">@style/MyActionBar2</item>


    </style>
  <style name="MyActionBar2" parent="@style/Theme.AppCompat.Light">
        <item name="android:windowFullscreen">true</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:background">#12ABEE</item>
        <item name="android:actionMenuTextColor">#ffffff</item>
        <item name="android:titleTextStyle">@style/myTheme.ActionBar.Text</item>
    </style>

When I run this code no action bar appears.I tried changing android:windowFullscreen=fallse but still same output..If i change the theme it crashes at running displaying error " You need to use a Theme.AppCompat theme (or descendant) with this activity."..

Here is my another class declararion in manifest-

   <activity
            android:name=".ui.slidingmenu.Home"
            android:label="@string/app_name"
            android:theme="@style/MyTheme">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

ans styles.xml

<style name="MyTheme" parent="@android:style/Theme.Holo.Light">
    <item name="android:actionBarStyle">@style/MyActionBar</item>
    <item name="android:actionBarTabStyle">@style/MyTheme.ActionBar.TabView</item>
    <item name="android:actionBarTabTextStyle">@style/MyTheme.ActionBar.TabText</item>
<style name="MyActionBar" parent="@android:style/Widget.Holo.Light.ActionBar">
        <item name="android:windowFullscreen">true</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:background">#12ABEE</item>
        <item name="android:gravity">center</item>
        <item name="android:actionMenuTextColor">#ffffff</item>
        <item name="android:titleTextStyle">@style/myTheme.ActionBar.Text</item>
    </style>
 <style name="myTheme.ActionBar.Text" parent="@android:style/TextAppearance">
        <item name="android:textColor">#ffffff</item>
        <item name="android:textStyle">bold</item>
        <item name="android:gravity">center</item>

    </style>

Here actionbar is displayed with the required background colour(#12ABEE) but the title is not centre aligned..i have put android:gravity=center still title is left aligned..