Bombolo Bombolo - 1 month ago 13
Android Question

Change Background color of the action bar using AppCompat

I found some questions about this problem around the web. Unfortunately, everything i try so far, has been unsuccessful.

Has the title say, i need to change the background color of my action bar.

The project have a min sdk of 9, and max sdk of 19.

I have create in my res/values folder, an xml file:

red_actionbar.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="CustomActionBarTheme" parent="@style/Theme.AppCompat.Light">

<item name="actionBarStyle">@style/MyActionBar</item>

</style>

<style name="MyActionBar" parent="@style/Widget.AppCompat.Light.ActionBar.Solid.Inverse">


<item name="background">@color/red</item>

</style>

</resources>


the colors.xml stored in res/values

<resources>
<color name="red">#FF0000</color>
</resources>


and the part of the manifest where i change the theme

<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/CustomActionBarTheme" >


But nothing change.

Where is the problem?

The application accept the code because if i change

<style name="CustomActionBarTheme" parent="@style/Theme.AppCompat.Light">


to

<style name="CustomActionBarTheme" parent="@style/Theme.AppCompat.Light.DarkActionBar ">


it change the theme of my app, so the problem is in the style but i don't know hw to solve it

<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="CustomActionBarTheme" parent="@style/Theme.AppCompat.Light">
<item name="android:actionBarStyle" tools:ignore="NewApi">@style/MyActionBar</item>
<item name="actionBarStyle">@style/MyActionBar</item>

</style>

<style name="MyActionBar" parent="@style/Widget.AppCompat.Light.ActionBar.Solid.Inverse">
<item name="android:background" tools:ignore="NewApi">@color/red</item>
<item name="background">@color/red</item>
</style>

</resources>

Answer
<style name="MyActionBar" parent="@style/Widget.AppCompat.Light.ActionBar.Solid.Inverse">
    <item name="android:background"  tools:ignore="NewApi">@color/red</item>
    <item name="background">@color/red</item>
</style>

<style name="CustomActionBarTheme" parent="@style/Theme.AppCompat.Light">
    <item name="android:actionBarStyle"   tools:ignore="NewApi">@style/MyActionBar</item>
    <item name="actionBarStyle">@style/MyActionBar</item>

</style>

you need both android:background and background items. The former is for newer versions of android that support ActionBar natively. The latter is for older android versions.

EDIT

instead of <resources> use

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

From SDK 21

to change Action Bar background color, add this to ActionBarTheme, and the two colours are to be different or it will not work (thanks to @Dre and @lagoman)

<item name="colorPrimary">@color/my_awesome_red</item> 
<item name="colorPrimaryDark">@color/my_awesome_darker_red</item>
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