Android theming: Set Status Bar color to Action Bar color in Material3

Question

I am migrating my app's Material Design theme from V2 (1.4.0) to V3 (1.5.0).

Unlike Theme.MaterialComponents.DayNight, which had a DarkActionBar sub style that used the Primary color for the Action Bar, Theme.Material3.DayNight doesn't have DarkActionBar sub style.

I can't figure out what color is used for the Action Bar in the default settings.

This is how my current app theme shows up:

As can be seen, my Primary color is Blue, but the Action Bar has automatically been colored using a shade/alpha of the primary. The hexadecimal color notation of the Action Bar was not defined by me. I tried setting the Status Bar to all the various shades of blue that I defined in my colors.xml file, but none of them are a perfect match.

Can someone explain how is the Action Bar color determined or how I may be able to set the Status Bar to the same color as the Action Bar?

colors.xml:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="black">#000000</color>
    <color name="white">#ffffff</color>

    <color name="black_alpha_020">#33000000</color>
    <color name="white_alpha_060">#99ffffff</color>

    <color name="blue_50">#e3f2fd</color>
    <color name="blue_50_bit_black">#E4F0F5</color>
    <color name="blue_100">#bbdefb</color>
    <color name="blue_300">#64b5f6</color>
    <color name="blue_500">#2196f3</color>
    <color name="blue_700">#1976d2</color>
    <color name="blue_a100">#82b1ff</color>

    <color name="blue_black_3_3">#072451</color>
    <color name="blue_black_3_3_bit_black">#031228</color>
    <color name="blue_white_5_6">#fafdff</color>
    <color name="blue_black_5_6">#061929</color>
    <color name="blue_black_10_2">#CEDCE6</color>
    <color name="blue500_black_5_6">#26282A</color>

    <color name="blue_50_alpha_060">#99e3f2fd</color>

    <color name="blue_grey_700">#455a64</color>
    <color name="blue_grey_800">#37474f</color>

    <color name="amber_100">#ffecb3</color>
    <color name="amber_700">#ffa000</color>
    <color name="amber_black_3_4">#401C00</color>

    <color name="red_50">#ffebee</color>
    <color name="red_black_2_3">#3D0909</color>
    <color name="red_900">#b71c1c</color>

    <color name="grey_600">#757575</color>

</resources>

themes.xml:

<?xml version="1.0" encoding="utf-8"?>
<resources xmlns:tools="http://schemas.android.com/tools">
    <style name="Theme.SimpleTheme" parent="Theme.Material3.DayNight">
        <!--Color-->
        <item name="colorPrimary">@color/blue_500</item>
        <item name="colorOnPrimary">@color/white</item>
        <item name="colorPrimaryContainer">@color/blue_50</item>
        <item name="colorOnPrimaryContainer">@color/blue_black_3_3</item>

        <item name="colorSecondary">@color/blue_grey_800</item>
        <item name="colorOnSecondary">@color/white</item>
        <item name="colorSecondaryContainer">@color/blue_50_bit_black</item>
        <item name="colorOnSecondaryContainer">@color/blue_black_3_3_bit_black</item>

        <item name="colorTertiary">@color/amber_700</item>
        <item name="colorOnTertiary">@color/white</item>
        <item name="colorTertiaryContainer">@color/amber_100</item>
        <item name="colorOnTertiaryContainer">@color/amber_black_3_4</item>

        <item name="colorError">@color/red_900</item>
        <item name="colorOnError">@color/white</item>
        <item name="colorErrorContainer">@color/red_50</item>
        <item name="colorOnErrorContainer">@color/red_black_2_3</item>

        <item name="android:colorBackground">@color/blue_white_5_6</item>
        <item name="colorOnBackground">@color/blue_black_5_6</item>
        <item name="colorSurface">@color/blue_white_5_6</item>
        <item name="colorOnSurface">@color/blue_black_5_6</item>

        <item name="colorSurfaceVariant">@color/blue_black_10_2</item>
        <item name="colorOnSurfaceVariant">@color/blue500_black_5_6</item>
        <item name="colorOutline">@color/grey_600</item>

        <item name="colorSurfaceInverse">@color/blue_black_5_6</item>
        <item name="colorOnSurfaceInverse">@color/blue_white_5_6</item>
        <item name="colorPrimaryInverse">@color/blue_a100</item>

        <item name="android:navigationBarColor" tools:targetApi="o_mr1">?attr/colorSurface</item>
        <item name="android:windowLightNavigationBar" tools:targetApi="o_mr1">true</item>
    </style>

    <style name="Theme.SimpleTheme.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
    </style>
</resources>

Answer 1

Make your status bar transparent:

themes.xml

<item name="android:statusBarColor">@android:color/transparent</item>
<item name="android:windowLightStatusBar">true</item>

themes.xml (night)

<item name="android:statusBarColor">@android:color/transparent</item>
<item name="android:windowLightStatusBar">false</item>

Edit your activity_main.xml file like below sample code:

<androidx.coordinatorlayout.widget.CoordinatorLayout
    ...
    android:fitsSystemWindows="true">

    <com.google.android.material.appbar.AppBarLayout
        ...
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:fitsSystemWindows="true"
        ...>

        <com.google.android.material.MaterialToolbar
        ...
        />

    </com.google.android.material.appbar.AppBarLayout>
    ...
</androidx.coordinatorlayout.widget.CoordinatorLayout>

For more information, check this doc: https://m3.material.io/components/top-app-bar/implementation/android#collapsing-top-app-bars

Answer 2

Using SurfaceColors class

The color of the Action Bar is colorSurface with elevation.

If you want to change the color of the Status Bar. Using SurfaceColors class. This function also works with Dynamic Coloring in Material 3 and day/night mode.

Code in Kotlin

val color = SurfaceColors.SURFACE_2.getColor(this)
window.statusBarColor = color // Set color of system statusBar same as ActionBar
window.navigationBarColor = color // Set color of system navigationBar same as BottomNavigationView

Result Thanks