Added dark mode

app/src/main/java/com/example/mampfmobil/ui/DecideFragment.java

 package com.example.mampfmobil.ui;
 
+import androidx.appcompat.app.AppCompatDelegate;
 import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentTransaction;
 import androidx.lifecycle.ViewModelProvider;
@@ -7,11 +8,13 @@ import androidx.lifecycle.ViewModelProvider;
 import android.content.Intent;
 import android.content.res.Configuration;
 import android.content.res.Resources;
+import android.os.Build;
 import android.os.Bundle;
 
 import androidx.annotation.Nullable;
 import androidx.fragment.app.Fragment;
 
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -43,6 +46,26 @@ public class DecideFragment extends Fragment {
 
         ImageButton deButton = rootView.findViewById(R.id.imageView);
         ImageButton enButton = rootView.findViewById(R.id.imageView2);
+        ImageButton darkMode = rootView.findViewById(R.id.imageButton);
+
+        darkMode.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                // Den Dark Mode programmgesteuert aktivieren
+                setDarkMode(true);
+            }
+        });
+
+        ImageButton lightMode = rootView.findViewById(R.id.imageButton2);
+
+        lightMode.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                // Den Dark Mode programmgesteuert aktivieren
+                setDarkMode(false);
+            }
+        });
+
 
         deButton.setOnClickListener(new View.OnClickListener() {
             @Override
@@ -112,12 +135,38 @@ public class DecideFragment extends Fragment {
         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();
+        recreateActivity(); // Aktivität neu starten, um die Änderungen anzuwenden
+    }
+
+    private void setDarkMode(boolean enabled) {
+
+        if (enabled) {
+
+            Log.d("myTag", "YES");
+            // Dark Mode aktivieren
+            AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES);
+        } else {
+            Log.d("myTag", "NO ");
+            // Dark Mode deaktivieren
+            AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO);
+        }
+
+        recreateActivity(); // Aktivität neu starten, um den Dark Mode anzuwenden
+
+    }
+
+    private void recreateActivity() {
+        // Aktivität neu starten
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
+            requireActivity().recreate();
+        } else {
+            Intent intent = requireActivity().getIntent();
+            intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
+            requireActivity().finish();
+            requireActivity().overridePendingTransition(0, 0);
+            startActivity(intent);
+            requireActivity().overridePendingTransition(0, 0);
+        }
     }
 
 }
\ No newline at end of file

app/src/main/res/layout/activity_main.xml

@@ -3,8 +3,7 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:id="@+id/container"
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:paddingTop="?attr/actionBarSize">
+    android:layout_height="match_parent">
 
     <com.google.android.material.bottomnavigation.BottomNavigationView
         android:id="@+id/nav_view"

app/src/main/res/layout/fragment_decide.xml

@@ -68,5 +68,26 @@
             app:layout_constraintStart_toEndOf="@+id/DelivererButton"
             app:layout_constraintTop_toBottomOf="@+id/DelivererButton" />
 
+        <ImageButton
+            android:id="@+id/imageButton"
+            android:layout_width="87dp"
+            android:layout_height="83dp"
+            android:layout_marginTop="16dp"
+            android:layout_marginEnd="16dp"
+            android:scaleType="fitCenter"
+            android:src="@drawable/darkmode"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <ImageButton
+            android:id="@+id/imageButton2"
+            android:layout_width="87dp"
+            android:layout_height="83dp"
+            android:layout_marginTop="16dp"
+            android:scaleType="fitCenter"
+            android:src="@drawable/lightmode"
+            app:layout_constraintEnd_toStartOf="@+id/imageButton"
+            app:layout_constraintTop_toTopOf="parent" />
+
     </androidx.constraintlayout.widget.ConstraintLayout>
 </FrameLayout>
\ No newline at end of file

app/src/main/res/values/colors.xml

@@ -7,4 +7,5 @@
     <color name="teal_700">#FF018786</color>
     <color name="black">#FF000000</color>
     <color name="white">#FFFFFFFF</color>
+    <color name="dark_grey">#5A5A5A</color>
 </resources>
\ No newline at end of file

app/src/main/res/values/themes.xml

@@ -5,6 +5,7 @@
         <item name="colorPrimary">@color/purple_500</item>
         <item name="colorPrimaryVariant">@color/purple_700</item>
         <item name="colorOnPrimary">@color/white</item>
+
         <!-- Secondary brand color. -->
         <item name="colorSecondary">@color/teal_200</item>
         <item name="colorSecondaryVariant">@color/teal_700</item>
@@ -12,5 +13,6 @@
         <!-- Status bar color. -->
         <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
         <!-- Customize your theme here. -->
+
     </style>
 </resources>
\ No newline at end of file