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The technique involves creating a customized modal component with React Navigation and setting up an event listener for the 'beforeRemove' event. When the user navigates to a screen that should not be navigated back to, the modal is displayed instead of allowing the default behavior of returning back to the previous screen. The 'beforeRemove' event listener is used to intercept the navigation action and prevent it from being executed. Here are the general steps for implementing this technique:

1. Create a customized modal component that will be displayed instead of returning back to the previous screen.

2. Use React Navigation to set up an event listener for the 'beforeRemove' event on the screen where you want to prevent returning back to the previous screen.

3. In the 'beforeRemove' event listener, check if the next screen to be navigated to is the same as the screen that you want to prevent returning back from. If it is, display the customized modal and prevent the navigation action from being executed.

4. In the customized modal component, provide options for the user to either navigate to a different screen or to stay on the current screen.

Here is some sample code that demonstrates how to implement this technique:

// Screen where you want to prevent returning back from
function DetailScreen({ navigation }) {

  // Set up event listener for 'beforeRemove' event
  React.useEffect(() => {
    const unsubscribe = navigation.addListener('beforeRemove', (e) => {
      // Get destination route for navigation action
      const destinationRoute = e.data.state.routes[e.data.state.index + 1];

      // Check if destination route is same as this screen
      if (destinationRoute && destinationRoute.name === 'Detail') {
        // Display customized modal and prevent navigation action
        e.preventDefault();
        showModal();
      }
    });

    return unsubscribe;
  }, [navigation]);

  const [isModalVisible, setModalVisible] = useState(false);

  const showModal = () => {
    setModalVisible(true);
  };

  const hideModal = () => {
    setModalVisible(false);
  };

  return (
    <View>
      {/* Content of Detail screen */}
      <CustomModal
        isVisible={isModalVisible}
        onNavigate={() => navigation.navigate('Home')}
        onCancel={() => hideModal()}
      />
    </View>
  );
}

// Customized modal component
function CustomModal({ isVisible, onNavigate, onCancel }) {

  return (
    <Modal visible={isVisible}>
      <Text>Do you want to navigate to a different screen?</Text>
      <Button title="Navigate" onPress={() => onNavigate()} />
      <Button title="Cancel" onPress={() => onCancel()} />
    </Modal>
  );
}