The in-built splash screen feature introduced in Android 12 (API 32) provides a convenient way to display a splash screen using the app icon. However, for lower Android versions, you can implement a splash screen manually by following these steps:

1. Create a new activity: Start by creating a new activity that will serve as your splash screen. This activity should be set as the launcher activity in the manifest file.

2. Design the splash screen layout: Create a layout XML file for your splash screen activity. This layout should contain the desired design elements such as an app logo, background color, or any other branding elements.

3. Set a theme for the splash screen activity: Define a theme for your splash screen activity in the styles.xml file. You can customize the theme to achieve the desired appearance for your splash screen. For example, you can set a full-screen theme, hide the action bar, or customize the window background.

4. Add a delay to the splash screen: To ensure that the splash screen is displayed for a specific duration, add a delay using a Handler or Timer in the splash screen activity’s `onCreate()` method. After the desired delay, start the main activity of your app.

Here’s an example implementation:

“`java
public class SplashActivity extends AppCompatActivity {
private static final long SPLASH_DELAY = 3000; // 3 seconds

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

new Handler().postDelayed(new Runnable() {
@Override
public void run() {
Intent intent = new Intent(SplashActivity.this, MainActivity.class);
startActivity(intent);
finish();
}
}, SPLASH_DELAY);
}
}
“`

Make sure to replace `MainActivity` with the name of your app’s main activity.

5. Update the manifest file: Finally, update the manifest file (AndroidManifest.xml) to declare the splash screen activity as the launcher activity. Set the appropriate intent filter and remove the intent filter from the previous launcher activity if needed.

“`xml

“`

By following these steps, you can create a splash screen implementation for lower Android versions that mimics the functionality of the in-built splash screens introduced in Android 12 and above.