Adds top level navigation and placeholder fragments.

app/src/main/java/com/majinnaibu/monstercards/MainActivity.java

@@ -31,7 +31,10 @@ public class MainActivity extends AppCompatActivity {
         // Passing each menu ID as a set of Ids because each
         // menu should be considered as top level destinations.
         AppBarConfiguration appBarConfiguration = new AppBarConfiguration.Builder(
-                R.id.navigation_home, R.id.navigation_dashboard, R.id.navigation_notifications)
+                R.id.navigation_search,
+                R.id.navigation_dashboard,
+                R.id.navigation_collections,
+                R.id.navigation_library)
                 .build();
         NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
         NavigationUI.setupActionBarWithNavController(this, navController, appBarConfiguration);

app/src/main/java/com/majinnaibu/monstercards/ui/collections/CollectionsFragment.java

@@ -1,4 +1,4 @@
-package com.majinnaibu.monstercards.ui.notifications;
+package com.majinnaibu.monstercards.ui.collections;
 
 import android.os.Bundle;
 import android.view.LayoutInflater;
@@ -14,17 +14,17 @@ import androidx.lifecycle.ViewModelProviders;
 
 import com.majinnaibu.monstercards.R;
 
-public class NotificationsFragment extends Fragment {
+public class CollectionsFragment extends Fragment {
 
-    private NotificationsViewModel notificationsViewModel;
+    private CollectionsViewModel collectionsViewModel;
 
     public View onCreateView(@NonNull LayoutInflater inflater,
                              ViewGroup container, Bundle savedInstanceState) {
-        notificationsViewModel =
+        collectionsViewModel =
-                ViewModelProviders.of(this).get(NotificationsViewModel.class);
+                ViewModelProviders.of(this).get(CollectionsViewModel.class);
-        View root = inflater.inflate(R.layout.fragment_notifications, container, false);
+        View root = inflater.inflate(R.layout.fragment_collections, container, false);
-        final TextView textView = root.findViewById(R.id.text_notifications);
+        final TextView textView = root.findViewById(R.id.text_collections);
-        notificationsViewModel.getText().observe(getViewLifecycleOwner(), new Observer<String>() {
+        collectionsViewModel.getText().observe(getViewLifecycleOwner(), new Observer<String>() {
             @Override
             public void onChanged(@Nullable String s) {
                 textView.setText(s);

app/src/main/java/com/majinnaibu/monstercards/ui/collections/CollectionsViewModel.java

@@ -1,19 +1,19 @@
-package com.majinnaibu.monstercards.ui.notifications;
+package com.majinnaibu.monstercards.ui.collections;
 
 import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 import androidx.lifecycle.ViewModel;
 
-public class NotificationsViewModel extends ViewModel {
+public class CollectionsViewModel extends ViewModel {
 
     private MutableLiveData<String> mText;
 
-    public NotificationsViewModel() {
+    public CollectionsViewModel() {
         mText = new MutableLiveData<>();
-        mText.setValue("This is notifications fragment");
+        mText.setValue("This is collections fragment");
     }
 
     public LiveData<String> getText() {
         return mText;
     }
-}
+}

app/src/main/java/com/majinnaibu/monstercards/ui/library/LibraryFragment.java

@@ -0,0 +1,35 @@
+package com.majinnaibu.monstercards.ui.library;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+import androidx.lifecycle.Observer;
+import androidx.lifecycle.ViewModelProviders;
+
+import com.majinnaibu.monstercards.R;
+
+public class LibraryFragment extends Fragment {
+
+    private LibraryViewModel libraryViewModel;
+
+    public View onCreateView(@NonNull LayoutInflater inflater,
+                             ViewGroup container, Bundle savedInstanceState) {
+        libraryViewModel =
+                ViewModelProviders.of(this).get(LibraryViewModel.class);
+        View root = inflater.inflate(R.layout.fragment_library, container, false);
+        final TextView textView = root.findViewById(R.id.text_library);
+        libraryViewModel.getText().observe(getViewLifecycleOwner(), new Observer<String>() {
+            @Override
+            public void onChanged(@Nullable String s) {
+                textView.setText(s);
+            }
+        });
+        return root;
+    }
+}

app/src/main/java/com/majinnaibu/monstercards/ui/library/LibraryViewModel.java

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

app/src/main/java/com/majinnaibu/monstercards/ui/search/SearchFragment.java

@@ -1,4 +1,4 @@
-package com.majinnaibu.monstercards.ui.home;
+package com.majinnaibu.monstercards.ui.search;
 
 import android.os.Bundle;
 import android.view.LayoutInflater;
@@ -14,17 +14,17 @@ import androidx.lifecycle.ViewModelProviders;
 
 import com.majinnaibu.monstercards.R;
 
-public class HomeFragment extends Fragment {
+public class SearchFragment extends Fragment {
 
-    private HomeViewModel homeViewModel;
+    private SearchViewModel searchViewModel;
 
     public View onCreateView(@NonNull LayoutInflater inflater,
                              ViewGroup container, Bundle savedInstanceState) {
-        homeViewModel =
+        searchViewModel =
-                ViewModelProviders.of(this).get(HomeViewModel.class);
+                ViewModelProviders.of(this).get(SearchViewModel.class);
-        View root = inflater.inflate(R.layout.fragment_home, container, false);
+        View root = inflater.inflate(R.layout.fragment_search, container, false);
-        final TextView textView = root.findViewById(R.id.text_home);
+        final TextView textView = root.findViewById(R.id.text_search);
-        homeViewModel.getText().observe(getViewLifecycleOwner(), new Observer<String>() {
+        searchViewModel.getText().observe(getViewLifecycleOwner(), new Observer<String>() {
             @Override
             public void onChanged(@Nullable String s) {
                 textView.setText(s);
@@ -32,4 +32,4 @@ public class HomeFragment extends Fragment {
         });
         return root;
     }
-}
+}

app/src/main/java/com/majinnaibu/monstercards/ui/search/SearchViewModel.java

@@ -1,16 +1,16 @@
-package com.majinnaibu.monstercards.ui.home;
+package com.majinnaibu.monstercards.ui.search;
 
 import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 import androidx.lifecycle.ViewModel;
 
-public class HomeViewModel extends ViewModel {
+public class SearchViewModel extends ViewModel {
 
     private MutableLiveData<String> mText;
 
-    public HomeViewModel() {
+    public SearchViewModel() {
         mText = new MutableLiveData<>();
-        mText.setValue("This is home fragment");
+        mText.setValue("This is search fragment");
     }
 
     public LiveData<String> getText() {

app/src/main/res/drawable/ic_collections_black_24dp.xml

@@ -0,0 +1,13 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M4,6H2v14c0,1.1 0.9,2 2,2h14v-2H4V6z"/>
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M20,2L8,2c-1.1,0 -2,0.9 -2,2v12c0,1.1 0.9,2 2,2h12c1.1,0 2,-0.9 2,-2L22,4c0,-1.1 -0.9,-2 -2,-2zM20,12l-2.5,-1.5L15,12L15,4h5v8z"/>
+</vector>

app/src/main/res/drawable/ic_home_black_24dp.xml

@@ -1,9 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24.0"
-    android:viewportHeight="24.0">
-    <path
-        android:fillColor="#FF000000"
-        android:pathData="M10,20v-6h4v6h5v-8h3L12,3 2,12h3v8z" />
-</vector>

app/src/main/res/drawable/ic_library_black_24dp.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M2,20h20v-4L2,16v4zM4,17h2v2L4,19v-2zM2,4v4h20L22,4L2,4zM6,7L4,7L4,5h2v2zM2,14h20v-4L2,10v4zM4,11h2v2L4,13v-2z"/>
+</vector>

app/src/main/res/drawable/ic_notifications_black_24dp.xml

@@ -1,9 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24.0"
-    android:viewportHeight="24.0">
-    <path
-        android:fillColor="#FF000000"
-        android:pathData="M12,22c1.1,0 2,-0.9 2,-2h-4c0,1.1 0.89,2 2,2zM18,16v-5c0,-3.07 -1.64,-5.64 -4.5,-6.32L13.5,4c0,-0.83 -0.67,-1.5 -1.5,-1.5s-1.5,0.67 -1.5,1.5v0.68C7.63,5.36 6,7.92 6,11v5l-2,2v1h16v-1l-2,-2z" />
-</vector>

app/src/main/res/drawable/ic_search_black_24dp.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M15.5,14h-0.79l-0.28,-0.27C15.41,12.59 16,11.11 16,9.5 16,5.91 13.09,3 9.5,3S3,5.91 3,9.5 5.91,16 9.5,16c1.61,0 3.09,-0.59 4.23,-1.57l0.27,0.28v0.79l5,4.99L20.49,19l-4.99,-5zM9.5,14C7.01,14 5,11.99 5,9.5S7.01,5 9.5,5 14,7.01 14,9.5 11.99,14 9.5,14z"/>
+</vector>

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:layout_height="match_parent">
-    android:paddingTop="?attr/actionBarSize">
 
     <com.google.android.material.bottomnavigation.BottomNavigationView
         android:id="@+id/nav_view"
@@ -20,14 +19,17 @@
 
     <fragment
         android:id="@+id/nav_host_fragment"
+
         android:name="androidx.navigation.fragment.NavHostFragment"
-        android:layout_width="match_parent"
+        android:layout_width="0dp"
-        android:layout_height="match_parent"
+        android:layout_height="0dp"
         app:defaultNavHost="true"
         app:layout_constraintBottom_toTopOf="@id/nav_view"
+        app:layout_constraintHorizontal_bias="0.0"
         app:layout_constraintLeft_toLeftOf="parent"
         app:layout_constraintRight_toRightOf="parent"
         app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.0"
         app:navGraph="@navigation/mobile_navigation" />
 
 </androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -4,10 +4,10 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".ui.notifications.NotificationsFragment">
+    tools:context=".ui.collections.CollectionsFragment">
 
     <TextView
-        android:id="@+id/text_notifications"
+        android:id="@+id/text_collections"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginStart="8dp"

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

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ui.library.LibraryFragment">
+
+    <TextView
+        android:id="@+id/text_library"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="8dp"
+        android:layout_marginTop="8dp"
+        android:layout_marginEnd="8dp"
+        android:textAlignment="center"
+        android:textSize="20sp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -4,10 +4,10 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".ui.home.HomeFragment">
+    tools:context=".ui.search.SearchFragment">
 
     <TextView
-        android:id="@+id/text_home"
+        android:id="@+id/text_search"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginStart="8dp"
@@ -19,4 +19,5 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
+
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/menu/bottom_nav_menu.xml

@@ -2,9 +2,9 @@
 <menu xmlns:android="http://schemas.android.com/apk/res/android">
 
     <item
-        android:id="@+id/navigation_home"
+        android:id="@+id/navigation_search"
-        android:icon="@drawable/ic_home_black_24dp"
+        android:icon="@drawable/ic_search_black_24dp"
-        android:title="@string/title_home" />
+        android:title="@string/title_search" />
 
     <item
         android:id="@+id/navigation_dashboard"
@@ -12,8 +12,13 @@
         android:title="@string/title_dashboard" />
 
     <item
-        android:id="@+id/navigation_notifications"
+        android:id="@+id/navigation_collections"
-        android:icon="@drawable/ic_notifications_black_24dp"
+        android:icon="@drawable/ic_collections_black_24dp"
-        android:title="@string/title_notifications" />
+        android:title="@string/title_collections" />
+
+    <item
+        android:id="@+id/navigation_library"
+        android:icon="@drawable/ic_library_black_24dp"
+        android:title="@string/title_library" />
 
 </menu>

app/src/main/res/navigation/mobile_navigation.xml

@@ -3,23 +3,52 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/mobile_navigation"
-    app:startDestination="@+id/navigation_home">
+    app:startDestination="@+id/navigation_dashboard">
 
     <fragment
-        android:id="@+id/navigation_home"
+        android:id="@+id/navigation_search"
-        android:name="com.majinnaibu.monstercards.ui.home.HomeFragment"
+        android:name="com.majinnaibu.monstercards.ui.search.SearchFragment"
-        android:label="@string/title_home"
+        android:label="@string/title_search"
-        tools:layout="@layout/fragment_home" />
+        tools:layout="@layout/fragment_search" >
+        <action
+            android:id="@+id/action_navigation_search_to_navigation_monster"
+            app:destination="@id/navigation_monster" />
+    </fragment>
 
     <fragment
         android:id="@+id/navigation_dashboard"
         android:name="com.majinnaibu.monstercards.ui.dashboard.DashboardFragment"
         android:label="@string/title_dashboard"
-        tools:layout="@layout/fragment_dashboard" />
+        tools:layout="@layout/fragment_dashboard" >
+        <action
+            android:id="@+id/action_navigation_dashboard_to_navigation_monster"
+            app:destination="@id/navigation_monster" />
+    </fragment>
 
     <fragment
-        android:id="@+id/navigation_notifications"
+        android:id="@+id/navigation_collections"
-        android:name="com.majinnaibu.monstercards.ui.notifications.NotificationsFragment"
+        android:name="com.majinnaibu.monstercards.ui.collections.CollectionsFragment"
-        android:label="@string/title_notifications"
+        android:label="@string/title_collections"
-        tools:layout="@layout/fragment_notifications" />
+        tools:layout="@layout/fragment_collections" >
+        <action
+            android:id="@+id/action_navigation_collections_to_navigation_monster"
+            app:destination="@id/navigation_monster" />
+    </fragment>
+
+    <fragment
+        android:id="@+id/navigation_library"
+        android:name="com.majinnaibu.monstercards.ui.library.LibraryFragment"
+        android:label="@string/title_library"
+        tools:layout="@layout/fragment_library" >
+        <action
+            android:id="@+id/action_navigation_library_to_navigation_monster"
+            app:destination="@id/navigation_monster" />
+    </fragment>
+
+    <fragment
+        android:id="@+id/navigation_monster"
+        android:name="com.majinnaibu.monstercards.ui.monster.MonsterFragment"
+        android:label="Monster"
+        tools:layout="@layout/fragment_monster" />
+
 </navigation>

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

@@ -1,6 +1,7 @@
 <resources>
     <string name="app_name">MonsterCards</string>
-    <string name="title_home">Home</string>
     <string name="title_dashboard">Dashboard</string>
-    <string name="title_notifications">Notifications</string>
+    <string name="title_search">Search</string>
+    <string name="title_collections">Collections</string>
+    <string name="title_library">Library</string>
 </resources>