This is also called splash screen.

Here an example of how you can implement a splash screen in Android:

1. Create a new layout file for your splash screen. For instance, you can create a file named `activity_splash.xml` in your `res/layout` directory. Customize the layout according to your design requirements.

“`xml
<!– activity_splash.xml –>
<LinearLayout xmlns:android=”http://schemas.android.com/apk/res/android”
android:layout_width=”match_parent”
android:layout_height=”match_parent”
android:orientation=”vertical”
android:gravity=”center”
android:background=”@color/splash_background”>

<!– Add your splash screen content here –>
<ImageView
android:layout_width=”wrap_content”
android:layout_height=”wrap_content”
android:src=”@drawable/splash_logo”
android:contentDescription=”@string/splash_logo_description” />

<TextView
android:layout_width=”wrap_content”
android:layout_height=”wrap_content”
android:text=”@string/app_name”
android:textColor=”@color/white”
android:textSize=”24sp”
android:paddingTop=”16dp” />

</LinearLayout>
“`

2. Create a new activity class for the splash screen. For example, you can create a file named `SplashActivity.java`. In this activity, set the desired layout using `setContentView()` in the `onCreate()` method and apply any additional logic or customization.

“`java
public class SplashActivity extends AppCompatActivity {

private static final long SPLASH_DELAY = 2000; // 2 seconds

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash);

// Delay for a specific time and then launch the main activity
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
Intent intent = new Intent(SplashActivity.this, MainActivity.class);
startActivity(intent);
finish();
}
}, SPLASH_DELAY);
}
}
“`

In the above code, we set the content view to the `activity_splash.xml` layout. Then, using a `Handler` and `postDelayed()`, we create a delay of 2 seconds (you can adjust this value as needed) before starting the `MainActivity`.

3. Declare the SplashActivity in your AndroidManifest.xml file by adding the following code within the `<application>` element:

“`xml
<activity
android:name=”.SplashActivity”
android:theme=”@style/Theme.Splash”
android:exported=”true”>
<intent-filter>
<action android:name=”android.intent.action.MAIN” />
<category android:name=”android.intent.category.LAUNCHER” />
</intent-filter>
</activity>
“`

Ensure that the `android:name` attribute points to the correct package name and class name for your SplashActivity.

4. Optionally, you can define a custom theme for your splash screen in your `styles.xml` file:

“`xml
<style name=”Theme.Splash” parent=”Theme.AppCompat.NoActionBar”>
<item name=”android:windowBackground”>@drawable/splash_background</item>
</style>
“`

In this example, we set a custom window background for the splash screen using the `splash_background` drawable resource.

Remember to replace `@color/splash_background`, `@drawable/splash_logo`, and `@string/app_name` with your own color, drawable, and string resources, respectively.

With these steps, you can implemented a basic splash screen in your Android application. The splash screen will be displayed for the specified duration and then transition to your main activity (`MainActivity` in this example).