Android Code Snippet Theme Colors

Erel

Administrator
Staff member
Licensed User
Changing the action bar, status bar and navigation bar colors is done with resources set in the manifest editor.
The following code is fully supported by Android 5+ devices but it will also work properly on Android 4 devices.



The manifest code:
B4X:
SetApplicationAttribute(android:theme, "@style/LightTheme")
CreateResource(values, colors.xml,
<resources>
    <color name="actionbar">#ff039be5</color>
   <color name="statusbar">#ff006db3</color>
   <color name="textColorPrimary">#ffffffff</color>
   <color name="navigationBar">#ff006db3</color>
</resources>
)
CreateResource(values-v20, theme.xml,
<resources>
    <style name="LightTheme" parent="@android:style/Theme.Material.Light">
        <item name="android:colorPrimary">@color/actionbar</item>
        <item name="android:colorPrimaryDark">@color/statusbar</item>
        <item name="android:textColorPrimary">@color/textColorPrimary</item>
        <item name="android:navigationBarColor">@color/navigationBar</item>
    </style>
</resources>
)
CreateResource(values-v14, theme.xml,
<resources>
    <style name="LightTheme" parent="@android:style/Theme.Holo.Light">
       <item name="android:actionBarStyle">@style/CustomActionBarStyle</item>
    </style>
   <style name="CustomActionBarStyle" parent="@android:style/Widget.Holo.Light.ActionBar.Solid.Inverse">
       <item name="android:background">@color/actionbar</item>
   </style>
</resources>
)
The colors are set in the first resources block. You can use the built-in color picker to get the values. Just change 0x to #.

The project is attached.
 

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Erel

Administrator
Staff member
Licensed User
If you want to further customize the action bar then you should use AppCompat with a toolbar.



This requires a bit more configuration but provides many features not available with the standard action bar:

1. Add to activity:
B4X:
#Extends: android.support.v7.app.AppCompatActivity
2. Add an ACToolBarLight custom view to the layout and check the "Use as main action bar" option.
3. Manifest editor code:
B4X:
SetApplicationAttribute(android:theme, "@style/MyAppTheme")
CreateResource(values, colors.xml,
<resources>
    <color name="actionbar">#ff039be5</color>
   <color name="statusbar">#ff006db3</color>
   <color name="textColorPrimary">#ffffffff</color>
   <color name="navigationBar">#ff006db3</color>
</resources>
)
CreateResource(values, theme.xml,
<resources>
    <style name="MyAppTheme" parent="Theme.AppCompat.Light">
        <item name="colorPrimary">@color/actionbar</item>
        <item name="colorPrimaryDark">@color/statusbar</item>
       <item name="android:textColorPrimary">@color/textColorPrimary</item>
       <item name="android:navigationBarColor">@color/navigationBar</item>
       <item name="windowNoTitle">true</item>
       <item name="windowActionBar">false</item>
       <item name="windowActionModeOverlay">true</item>
    </style>
</resources>
)
4. The toolbar color is set in the code:
B4X:
ACToolBarLight1.Color = 0xff039be5
 

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Last edited:

Robcom69

Member
Licensed User
Hi Erel,
just a simple question about your first example. I have changed the manfest as suggested and I have action bar, status bar and navigation bar colors changed.
Really wonderfull. But now I have a little problem, I have used the addmenuitem to add menu items in the bar...but the textcolor of the menu is white and the backgrund of the menu is white too, so i can't really see nothing..

I have seen the option in the manifest that set the primary color to white....
<color name="textColorPrimary">#ffffffff</color>
.. so acting on this value I can switch to color ff000000 (black) for example, and it to solve my menu problem, but on the other side, the text on the bar becomes black too, so probably I need to act on another parameter that I can't actually find.

Any suggestion?
Thanks a lot
 
Last edited:
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