Android Question How can i change theme background color

[azzam223]

hello every one how can i change theme background color that display when app start because my logo background color is different than theme background color

 

[Erel]

Theme Colors

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: SetApplicationAttribute(android:theme...

www.b4x.com

 

[azzam223]

Thanks erel I have checked but I didn't know what the the property change background color only I see action bar changed not background

 

[asales]

<style name="LightTheme" parent="@android:style/Theme.Material.Light">
    <item name="android:colorBackground">#FF6495ED</item>
</style>

 

[azzam223]

Thanks artless but how can I applied it

 

[DonManfred]

Thanks artless but how can I applied it

I STRONGLY recomment you to check the Thread Erel posted instead of asking first.
You DID NOT

etApplicationAttribute(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, 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>
)

 

[asales]

Thanks artless but how can I applied it

Check the code from Erel and add this line together with the others in the manifest:

<item name="android:colorBackground">#FF6495ED</item>

 

[azzam223]

res\values-v14\theme.xml:5: error: style attribute 'android:attr/colorbackground' not found.

i have added but i got this error

 

[TILogistic]

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>   
    <color name="colorBackground">#6EFF33</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>
         <item name="android:colorBackground">@color/colorBackground</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>
)

 

[TILogistic]

tips:

 

[TILogistic]

see directory of generated resources:
ThemeColors\B4A Samples\Objects\res
ThemeColors\B4A Samples\Objects\res\values
\ThemeColors\B4A Samples\Objects\res\values-v20

 

[TILogistic]

You may be interested, dynamic change of themes, through xml files.

Changing the theme at runtime

Using the hooks feature it is possible to change the Activity theme at runtime. The theme is set before the activity is actually shown. This means that in order to change the theme we need to destroy the activity and start it again. You can use StateManager to save the activity state. The...

www.b4x.com

 

[azzam223]

View attachment 150742

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>  
    <color name="colorBackground">#6EFF33</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>
         <item name="android:colorBackground">@color/colorBackground</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>
)

thanks TILogistic is work now

 

[azzam223]

hello how can i remove the white space around the logo i tried to make the logo bigger but nothing changed

 

[DonManfred]

hello how can i remove the white space around the logo i tried to make the logo bigger but nothing changed

Do not expect anyone can give you a congrete answer if you do not upload a small project showing the issue.

How can we know what you did and how?

Away from that
- the Question in #1 is answered.
- you should create A NEW THREAD for any new question/issue you have.
- Also give ENOUGH details for anyone want to help.
- Upload a small project showing the issue.

 

[azzam223]

Do not expect anyone can give you a congrete answer if you do not upload a small project showing the issue.

How can we know what you did and how?

hi don i have used this snipped code in manifest editor and also select logo with 512×512

SetApplicationAttribute(android:theme, "@style/LightTheme")
CreateResource(values, colors.xml,
<resources>
    <color name="actionbar">#FF7F5B8B</color>
    <color name="statusbar">#ff006db3</color>
    <color name="textColorPrimary">#ffffffff</color>
    <color name="navigationBar">#ff006db3</color>  
    <color name="colorBackground">#FF7F5B8B</color>
</resources>
)
CreateResource(values-v20, theme.xml,
<resources>
    <style name="LightTheme" parent="@android:style/Theme.Material.Light">
         <item name="android:colorBackground">@color/colorBackground</item>
    </style>
</resources>
)
CreateResource(values-v14, theme.xml,
<resources>
 
    <style name="CustomActionBarStyle" parent="@android:style/Widget.Holo.Light.ActionBar.Solid.Inverse">
        <item name="android:background">@color/actionbar</item>
    </style>
</resources>
)

 

[DonManfred]

hi don i have used this snipped code in manifest editor and also select logo with 512 size

I´ll not try to guess what could be wrong. Your Manifest helps exactly zero to reproduce the issue.

- the Question in #1 is answered.
- you should create A NEW THREAD for any new question/issue you have.
- Also give ENOUGH details for anyone want to help.
- Upload a small project showing the issue.