Android Question [solved] Starting app with dark mode

[angel_]

When I start the app the white screen appears while loading the views, how can I remove this effect or directly start the app with the dark mode?, is possible?

AddManifestText(
<uses-sdk android:minSdkVersion="14" android:targetSdkVersion="28"/>
<supports-screens android:largeScreens="true"
    android:normalScreens="true"
    android:smallScreens="true"
    android:anyDensity="true"/>)
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")
CreateResourceFromFile(Macro, Themes.DarkTheme)

SetApplicationAttribute(android:theme, "@style/MyAppTheme")

CreateResource(values, MyAppTheme.xml,
<resources>
    <style name="MyAppTheme" parent="Theme.AppCompat.DayNight.NoActionBar">
    </style>
</resources>
)

 

[yfleury]

In designer, click on activity and set color to black

 

[Erel]

Do you need to support both light and dark themes? If not then use a dark theme.

 

[angel_]

Do you need to support both light and dark themes? If not then use a dark theme.

Yes, I want to support both themes.

 

[Erel]

Make sure that your app appears as fast as possible. In most cases it should load fast enough that you don't need to worry about the base activity color.

If you are loading a large layout file then you can defer it by adding Sleep(50) before loading the layout.

 

[angel_]

Make sure that your app appears as fast as possible. In most cases it should load fast enough that you don't need to worry about the base activity color.

If you are loading a large layout file then you can defer it by adding Sleep(50) before loading the layout.

I tried that but it appears like a flash, it is very very short but it is uncomfortable

 

[Erel]

Changing the theme colors: https://www.b4x.com/android/forum/threads/theme-colors.87716/#post-554897

The relevant item name is: android:windowBackground

 

[angel_]

Changing the theme colors: https://www.b4x.com/android/forum/threads/theme-colors.87716/#post-554897

The relevant item name is: android:windowBackground

Thank you

CreateResource(values, MyAppTheme.xml,
<resources>
    <style name="MyAppTheme" parent="Theme.AppCompat.DayNight.NoActionBar">
        <item name="android:windowBackground">@android:color/black</item>
    </style>
</resources>
)