DecideFragment.java

package com.example.mampfmobil.ui;

import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentTransaction;
import androidx.lifecycle.ViewModelProvider;

import android.content.Intent;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.os.Bundle;

import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageButton;

import com.example.mampfmobil.R;
import com.example.mampfmobil.ui.customer.CustomerLogonFragment;
import com.example.mampfmobil.ui.customer.CustomerRegisterFragment;
import com.example.mampfmobil.ui.deliverer.DelivererLogonFragment;
import com.example.mampfmobil.ui.deliverer.DelivererRegisterFragment;
import com.example.mampfmobil.ui.supplier.SupplierLogonFragment;
import com.example.mampfmobil.ui.supplier.SupplierRegisterFragment;

import java.util.Locale;

public class DecideFragment extends Fragment {

    private DecideViewModel mViewModel;

    public static DecideFragment newInstance() {
        return new DecideFragment();
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_decide, container, false);

        ImageButton deButton = rootView.findViewById(R.id.imageView);
        ImageButton enButton = rootView.findViewById(R.id.imageView2);

        deButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                setLocale("de"); // Aufruf der Funktion zum Ändern der Sprache auf Deutsch
            }
        });

        enButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                setLocale("en"); // Aufruf der Funktion zum Ändern der Sprache auf Englisch
            }
        });

        Button button = rootView.findViewById(R.id.CustomerButton);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                FragmentManager fragmentManager = requireActivity().getSupportFragmentManager();
                FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
                fragmentTransaction.replace(R.id.container, new CustomerLogonFragment());
                fragmentTransaction.addToBackStack(null); // Fügt den Fragment-Wechsel zur Back-Stack hinzu
                fragmentTransaction.commit();
            }
        });

        Button button2 = rootView.findViewById(R.id.SupplierButton);
        button2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                FragmentManager fragmentManager = requireActivity().getSupportFragmentManager();
                FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
                fragmentTransaction.replace(R.id.container, new SupplierLogonFragment());
                fragmentTransaction.addToBackStack(null); // Fügt den Fragment-Wechsel zur Back-Stack hinzu
                fragmentTransaction.commit();
            }
        });


        Button button3 = rootView.findViewById(R.id.DelivererButton);
        button3.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                FragmentManager fragmentManager = requireActivity().getSupportFragmentManager();
                FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
                fragmentTransaction.replace(R.id.container, new DelivererLogonFragment());
                fragmentTransaction.addToBackStack(null); // Fügt den Fragment-Wechsel zur Back-Stack hinzu
                fragmentTransaction.commit();
            }
        });
        return rootView;
    }


    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        mViewModel = new ViewModelProvider(this).get(DecideViewModel.class);
        // TODO: Use the ViewModel
    }

    private void setLocale(String languageCode) {
        Locale locale = new Locale(languageCode);
        Resources resources = getResources();
        Configuration configuration = resources.getConfiguration();
        configuration.setLocale(locale);
        resources.updateConfiguration(configuration, resources.getDisplayMetrics());

        // Hier müssen Sie den Fragments-Wechsel aktualisieren, um sicherzustellen,
        // dass die Ansichten und Texte entsprechend der geänderten Sprache aktualisiert werden
        FragmentManager fragmentManager = requireActivity().getSupportFragmentManager();
        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
        fragmentTransaction.replace(R.id.container, new DecideFragment());
        fragmentTransaction.commit();
    }

}