android bar color change code example

Example 1: android navigation bar color change

<item name="android:navigationBarColor">@color/theme_color</item>

Example 2: change status bar color android

// for my fellow react-native developers
// add this in styles.xml
<resources>
    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.DayNight.NoActionBar">
        <!-- Customize your theme here. -->
        <item name="android:textColor">#000000</item>
        <item name="android:windowDisablePreview">true</item>
        <item name="android:windowBackground">#000000</item>
        <item name="android:colorBackground">#000000</item>
        <item name="android:statusBarColor">#000000</item>//<--add_this
    </style>

</resources>