Android Question Dark screen with title when the app starts

[CVR]

Hello!
The question is the following:
I already have the app ready, but when I open it, first a kind of dark screen with the title of the app (before loading the layout) comes out which makes the app not look very good.
Any other App starts immediately and does not show that kind of delay.
How can I solve that?
I hope you have made me understand!
Thanks for opening!
Attached image.

 

[DonManfred]

The question is what you are doing in your app in activity_create which causes such a delay?

 

[Johan Hormaza]

Use this in the manifest
Use this in the manifest.
Also activates the AppCompat library

SetApplicationAttribute(android:theme, "@style/MyAppTheme")
CreateResource(values, theme.xml,
<resources>
    <style name="MyAppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="colorPrimary">#61100E</item>
        <item name="colorAccent">#3F79E7</item>
        <item name="windowNoTitle">true</item>
        <item name="windowActionBar">false</item>
    </style>
        <style name="ToolbarMenu" parent="Base.ThemeOverlay.AppCompat.ActionBar">
        <item name="android:textColorPrimary">#fff</item>
        <item name="android:colorBackground">#0098FF</item>
    </style>
</resources>
)

 

[CVR]

Use this in the manifest
Use this in the manifest.
Also activates the AppCompat library

SetApplicationAttribute(android:theme, "@style/MyAppTheme")
CreateResource(values, theme.xml,
<resources>
    <style name="MyAppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="colorPrimary">#61100E</item>
        <item name="colorAccent">#3F79E7</item>
        <item name="windowNoTitle">true</item>
        <item name="windowActionBar">false</item>
    </style>
        <style name="ToolbarMenu" parent="Base.ThemeOverlay.AppCompat.ActionBar">
        <item name="android:textColorPrimary">#fff</item>
        <item name="android:colorBackground">#0098FF</item>
    </style>
</resources>
)

This solved the problem completely! THANK YOU