finished

Readme.txt

@@ -1,2 +1,5 @@
 Name: Paul Lödige
 Matrikel: 15405036
+
+Hinweis:
+Der ViewPager ist im Slideshow-Fragment des NavigationDrawers implementiert

app/build.gradle

@@ -37,6 +37,7 @@ dependencies {
     implementation 'androidx.navigation:navigation-ui:2.3.1'
     implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.2.0'
     implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.2.0'
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
     testImplementation 'junit:junit:4.+'
     androidTestImplementation 'androidx.test.ext:junit:1.1.2'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'

app/src/main/java/com/ploedige/navdrawertest/MainActivity.java

@@ -1,3 +1,7 @@
+/**
+ * @author Paul Lödige (Matrikel: 15405036)
+ */
+
 package com.ploedige.navdrawertest;
 
 import android.os.Bundle;

app/src/main/java/com/ploedige/navdrawertest/ui/slideshow/SlideshowFragment.java

@@ -1,3 +1,7 @@
+/**
+ * @author Paul Lödige (Matrikel: 15405036)
+ */
+
 package com.ploedige.navdrawertest.ui.slideshow;
 
 import android.os.Bundle;
@@ -11,25 +15,23 @@ import androidx.annotation.Nullable;
 import androidx.fragment.app.Fragment;
 import androidx.lifecycle.Observer;
 import androidx.lifecycle.ViewModelProvider;
+import androidx.viewpager.widget.ViewPager;
 
 import com.ploedige.navdrawertest.R;
 
 public class SlideshowFragment extends Fragment {
 
-    private SlideshowViewModel slideshowViewModel;
+    TestPagerAdapter testPagerAdapter;
+    ViewPager viewPager;
 
     public View onCreateView(@NonNull LayoutInflater inflater,
                              ViewGroup container, Bundle savedInstanceState) {
-        slideshowViewModel =
-                new ViewModelProvider(this).get(SlideshowViewModel.class);
         View root = inflater.inflate(R.layout.fragment_slideshow, container, false);
-        final TextView textView = root.findViewById(R.id.text_slideshow);
+
-        slideshowViewModel.getText().observe(getViewLifecycleOwner(), new Observer<String>() {
+        testPagerAdapter = new TestPagerAdapter(getFragmentManager());
-            @Override
+
-            public void onChanged(@Nullable String s) {
+        viewPager = (ViewPager) root.findViewById(R.id.pager);
-                textView.setText(s);
+        viewPager.setAdapter(testPagerAdapter);
-            }
-        });
         return root;
     }
 }

app/src/main/java/com/ploedige/navdrawertest/ui/slideshow/SlideshowViewModel.java

@@ -1,19 +0,0 @@
-package com.ploedige.navdrawertest.ui.slideshow;
-
-import androidx.lifecycle.LiveData;
-import androidx.lifecycle.MutableLiveData;
-import androidx.lifecycle.ViewModel;
-
-public class SlideshowViewModel extends ViewModel {
-
-    private MutableLiveData<String> mText;
-
-    public SlideshowViewModel() {
-        mText = new MutableLiveData<>();
-        mText.setValue("This is slideshow fragment");
-    }
-
-    public LiveData<String> getText() {
-        return mText;
-    }
-}

app/src/main/java/com/ploedige/navdrawertest/ui/slideshow/TestPagerAdapter.java

@@ -0,0 +1,58 @@
+/**
+ * @author Paul Lödige (Matrikel: 15405036)
+ */
+
+package com.ploedige.navdrawertest.ui.slideshow;
+
+import android.util.Log;
+
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentManager;
+import androidx.fragment.app.FragmentPagerAdapter;
+import androidx.fragment.app.FragmentStatePagerAdapter;
+
+import com.ploedige.navdrawertest.ui.slideshow.fragments.SwipeFragment1;
+import com.ploedige.navdrawertest.ui.slideshow.fragments.SwipeFragment2;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public class TestPagerAdapter extends FragmentStatePagerAdapter {
+
+    private Map<String, Class<? extends Fragment>> fragments = new HashMap();
+
+    public TestPagerAdapter(FragmentManager fm){
+        super(fm);
+        // add all the Classes for the SwipeView
+        fragments.put("Fragment 1", SwipeFragment1.class);
+        fragments.put("Fragment 2",SwipeFragment2.class);
+    }
+
+    @NonNull
+    @Override
+    public Fragment getItem(int position) {
+        if(position >= fragments.size()){
+            Log.v("TestPagerAdapter","Position is outside of Array.");
+            return new SwipeFragment1();
+        }
+        try {
+            return (Fragment) fragments.get(fragments.keySet().toArray()[position]).newInstance();
+        } catch (Exception e) {
+            e.printStackTrace();
+            return new SwipeFragment1();
+        }
+    }
+
+    @Override
+    public int getCount() {
+        return fragments.size();
+    }
+
+    @Override
+    public CharSequence getPageTitle(int position){
+       return fragments.keySet().toArray()[position].toString();
+    }
+}

app/src/main/java/com/ploedige/navdrawertest/ui/slideshow/fragments/SwipeFragment1.java

@@ -0,0 +1,35 @@
+/**
+ * @author Paul Lödige (Matrikel: 15405036)
+ */
+
+package com.ploedige.navdrawertest.ui.slideshow.fragments;
+
+import android.os.Bundle;
+
+import androidx.fragment.app.Fragment;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.ploedige.navdrawertest.R;
+
+public class SwipeFragment1 extends Fragment {
+
+    public static SwipeFragment1 newInstance(String param1, String param2) {
+        SwipeFragment1 fragment = new SwipeFragment1();
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.fragment_swipe1, container, false);
+    }
+}

app/src/main/java/com/ploedige/navdrawertest/ui/slideshow/fragments/SwipeFragment2.java

@@ -0,0 +1,35 @@
+/**
+ * @author Paul Lödige (Matrikel: 15405036)
+ */
+
+package com.ploedige.navdrawertest.ui.slideshow.fragments;
+
+import android.os.Bundle;
+
+import androidx.fragment.app.Fragment;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.ploedige.navdrawertest.R;
+
+public class SwipeFragment2 extends Fragment {
+
+    public static SwipeFragment2 newInstance(String param1, String param2) {
+        SwipeFragment2 fragment = new SwipeFragment2();
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.fragment_swipe2, container, false);
+    }
+}

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

@@ -6,17 +6,15 @@
     android:layout_height="match_parent"
     tools:context=".ui.slideshow.SlideshowFragment">
 
-    <TextView
+    <androidx.viewpager.widget.ViewPager
-        android:id="@+id/text_slideshow"
+        android:id="@+id/pager"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+        android:layout_height="match_parent">
-        android:layout_marginStart="8dp"
+
-        android:layout_marginTop="8dp"
+        <androidx.viewpager.widget.PagerTabStrip
-        android:layout_marginEnd="8dp"
+            android:id="@+id/pts"
-        android:textAlignment="center"
+            android:layout_width="match_parent"
-        android:textSize="20sp"
+            android:layout_height="wrap_content"
-        app:layout_constraintBottom_toBottomOf="parent"
+            android:background="@color/design_default_color_secondary"/>
-        app:layout_constraintEnd_toEndOf="parent"
+    </androidx.viewpager.widget.ViewPager>
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/fragment_swipe1.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    tools:context=".ui.slideshow.fragments.SwipeFragment1">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <TextView
+            android:text="This is SwipeFragment1"
+            android:textSize="5mm"
+
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintLeft_toLeftOf="parent"
+            app:layout_constraintRight_toRightOf="parent"/>
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+</FrameLayout>

app/src/main/res/layout/fragment_swipe2.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    tools:context=".ui.slideshow.fragments.SwipeFragment2">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <TextView
+            android:text="This is SwipeFragment2"
+            android:textSize="5mm"
+
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintLeft_toLeftOf="parent"
+            app:layout_constraintRight_toRightOf="parent"/>
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+</FrameLayout>

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

@@ -10,4 +10,6 @@
     <string name="menu_home">Home</string>
     <string name="menu_gallery">Gallery</string>
     <string name="menu_slideshow">Slideshow</string>
+    <!-- TODO: Remove or change this placeholder text -->
+    <string name="hello_blank_fragment">Hello blank fragment</string>
 </resources>