Globally disable Android software navigation bar in React Native

MainActivity.java

package com.myApp;
. . . 
// imports
. . . 

public class MainActivity extends ReactActivity {

  @Override
  protected String getMainComponentName() {
    return "MyApp";
  }
 
+  @Override
+    public void onWindowFocusChanged(boolean hasFocus) {
+      super.onWindowFocusChanged(hasFocus);
+      if (hasFocus) {
+        hideNavigationBar();
+      }
+    }
  
  
  . . . 
  
  private void hideNavigationBar() {
    getWindow().getDecorView().setSystemUiVisibility(
      View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
      | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
      | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
      | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
      | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
      | View.SYSTEM_UI_FLAG_FULLSCREEN
    );
  }
}