Como puedo mostrar un Fragment de android desde react native al presionar un boton

Estoy tratando de mostrar un Fragment de Android al presionar un boton en react native

Componente de React

...react class definition
render () {
  return (
    <View>
       <Button title="Guardar"
               titleStyle={{ fontSize: 18, color: 'white', fontFamily: 'Lato-Bold' }}
               disabled={!this.state.formValid}
               onPress={() => {SampleModule.loadFragment(10)}}
               raised
               buttonStyle={{ backgroundColor: '#06D7A0' }} />
    </View>
  )
}

Importando el modulo a javascript

NativeModule.js

import { NativeModules } from 'react-native'
module.exports = NativeModules.SampleModule;

Creando modulo de java

SampleModule.java

public class SampleModule extends ReactContextBaseJavaModule {
    private static ReactApplicationContext reactContext;

    SampleModule(ReactApplicationContext context) {
        super(context);
        reactContext = context;
    }

    @Override
      public String getName() {
      return "SampleModule";
    }

    @ReactMethod
    public void loadFragment(int viewId) {
      System.out.println(viewId);
      LayoutInflater inflater = LayoutInflater.from(reactContext);
      View myView = inflater.inflate(R.layout.my_fragment, null, false);
      myView.bringToFront();
    }
}

Creando el paquete de java

SamplePackage.java

public class SamplePackage implements ReactPackage{

  @Override
  public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
      return Collections.emptyList();
  }

  @Override
  public List<NativeModule> createNativeModules(
        ReactApplicationContext reactContext) {
    List<NativeModule> modules = new ArrayList<>();

    modules.add(new SampleModule(reactContext));

    return modules;
  }

Archivo XML del Fragment

my_fragment.xml

<layout xmlns:android="http://schemas.android.com/apk/res/android">
    <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:padding="16dp"
            android:text="@{String.format(@string/sbp_value, model.sbp)}"
            android:textSize="18sp"
            android:textColor="#808080"
            fontPath="fonts/Lato-Regular.ttf" />
        
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:onClick="@{content::clickUploadData}"
            android:text="Sample"
            android:textSize="16sp"
            android:visibility="@{showUpload?View.VISIBLE:View.GONE}" />

    </LinearLayout>
</layout>

No logro hacer que el fragment se muestre al presionar el boton desde react native.

 @ReactMethod
    public void loadFragment(int viewId) {
      reactContext.startActivity(Intent(reactContext,MiActividadConElFragment.class);
      
    }

  public class SampleViewManager extends SimpleViewManager<View> {
    
        @Override
  public String getName() {
  return "SampleView";
}
    
    @Override
        public View createViewInstance(ThemedReactContext reactContext ){
            return  LayoutInflater.from(reactContext).inflate(R.layout.my_fragment, null, false)
        }
    }

 @Override
  public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
       List<ViewManager> views= new ArrayList<>();

    views.add(new SampleViewManager());

    return views;
  }

import { requireNativeComponent } from 'react-native';

export requireNativeComponent('SampleView', null);