basic feed

app/build.gradle

@@ -35,6 +35,7 @@ android {
     }
     buildFeatures {
         compose true
+        viewBinding true
     }
     composeOptions {
         kotlinCompilerExtensionVersion '1.5.1'
@@ -59,6 +60,8 @@ dependencies {
     implementation libs.ui.graphics
     implementation libs.ui.tooling.preview
     implementation libs.material3
+    implementation libs.legacy.support.v4
+    implementation libs.recyclerview
     testImplementation libs.junit
     androidTestImplementation libs.ext.junit
     androidTestImplementation libs.espresso.core

app/src/main/java/com/dowerx/quack/FeedFragment.java

@@ -0,0 +1,72 @@
+package com.dowerx.quack;
+
+import android.content.Context;
+import android.os.Bundle;
+
+import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.GridLayoutManager;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.dowerx.quack.model.Post;
+
+/**
+ * A fragment representing a list of Items.
+ */
+public class FeedFragment extends Fragment {
+
+    // TODO: Customize parameter argument names
+    private static final String ARG_COLUMN_COUNT = "column-count";
+    // TODO: Customize parameters
+    private int mColumnCount = 1;
+
+    /**
+     * Mandatory empty constructor for the fragment manager to instantiate the
+     * fragment (e.g. upon screen orientation changes).
+     */
+    public FeedFragment() {
+    }
+
+    // TODO: Customize parameter initialization
+    @SuppressWarnings("unused")
+    public static FeedFragment newInstance(int columnCount) {
+        FeedFragment fragment = new FeedFragment();
+        Bundle args = new Bundle();
+        args.putInt(ARG_COLUMN_COUNT, columnCount);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        if (getArguments() != null) {
+            mColumnCount = getArguments().getInt(ARG_COLUMN_COUNT);
+        }
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.fragment_feed_list, container, false);
+
+        // Set the adapter
+        if (view instanceof RecyclerView) {
+            Context context = view.getContext();
+            RecyclerView recyclerView = (RecyclerView) view;
+            if (mColumnCount <= 1) {
+                recyclerView.setLayoutManager(new LinearLayoutManager(context));
+            } else {
+                recyclerView.setLayoutManager(new GridLayoutManager(context, mColumnCount));
+            }
+            // TODO: get posts
+            recyclerView.setAdapter(new PostRecyclerViewAdapter(Post.ITEMS));
+        }
+        return view;
+    }
+}

app/src/main/java/com/dowerx/quack/MainActivity.java

@@ -25,6 +25,8 @@ public class MainActivity extends AppCompatActivity {
     }
 
     public void login(View view) {
+        // TODO: login
+        startActivity(new Intent(this, SwitcherActivity.class));
     }
 
     public void redirect_register(View view) {

app/src/main/java/com/dowerx/quack/PostRecyclerViewAdapter.java

@@ -0,0 +1,57 @@
+package com.dowerx.quack;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+
+import android.view.LayoutInflater;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import com.dowerx.quack.databinding.FragmentPostBinding;
+import com.dowerx.quack.model.Post;
+import java.util.List;
+
+public class PostRecyclerViewAdapter extends RecyclerView.Adapter<PostRecyclerViewAdapter.ViewHolder> {
+
+    private final List<Post> mValues;
+
+    public PostRecyclerViewAdapter(List<Post> items) {
+        mValues = items;
+    }
+
+    @NonNull
+    @Override
+    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        return new ViewHolder(FragmentPostBinding.inflate(LayoutInflater.from(parent.getContext()), parent, false));
+    }
+
+    @Override
+    public void onBindViewHolder(final ViewHolder holder, int position) {
+        holder.mItem = mValues.get(position);
+        holder.username.setText(holder.mItem.getUser().getUsername());
+        holder.content.setText(holder.mItem.getContent());
+    }
+
+    @Override
+    public int getItemCount() {
+        return mValues.size();
+    }
+
+    public class ViewHolder extends RecyclerView.ViewHolder {
+        public final TextView username;
+        public final TextView content;
+        public Post mItem;
+
+        public ViewHolder(@NonNull FragmentPostBinding binding) {
+            super(binding.getRoot());
+            username = binding.username;
+            content = binding.content;
+        }
+
+        @NonNull
+        @Override
+        public String toString() {
+            return super.toString() + " '" + content.getText() + "'";
+        }
+    }
+}

app/src/main/java/com/dowerx/quack/RegisterActivity.java

@@ -25,6 +25,7 @@ public class RegisterActivity extends AppCompatActivity {
     }
 
     public void register(View view) {
+        // TODO: register
     }
 
     public void redirect_login(View view) {

app/src/main/java/com/dowerx/quack/SwitcherActivity.java

@@ -1,14 +1,19 @@
 package com.dowerx.quack;
 
 import android.os.Bundle;
+import android.view.MenuItem;
 
 import androidx.activity.EdgeToEdge;
+import androidx.annotation.NonNull;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.core.graphics.Insets;
 import androidx.core.view.ViewCompat;
 import androidx.core.view.WindowInsetsCompat;
+import androidx.fragment.app.Fragment;
 
-public class SwitcherActivity extends AppCompatActivity {
+import com.google.android.material.navigation.NavigationBarView;
+
+public class SwitcherActivity extends AppCompatActivity implements NavigationBarView.OnItemSelectedListener, NavigationBarView.OnItemReselectedListener {
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -20,5 +25,29 @@ public class SwitcherActivity extends AppCompatActivity {
             v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
             return insets;
         });
+
+        ((NavigationBarView)findViewById(R.id.bottom_nav_bar)).setOnItemSelectedListener(this);
+        ((NavigationBarView)findViewById(R.id.bottom_nav_bar)).setOnItemReselectedListener(this);
+
+        loadFragment(new FeedFragment());
+    }
+
+    @Override
+    public void onNavigationItemReselected(@NonNull MenuItem menuItem) {
+
+    }
+
+    @Override
+    public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
+        return false;
+    }
+
+    private void loadFragment(Fragment fragment) {
+        if (fragment != null) {
+            getSupportFragmentManager()
+                    .beginTransaction()
+                    .replace(R.id.main_fragment_holder, fragment)
+                    .commit();
+        }
     }
 }

app/src/main/java/com/dowerx/quack/model/Post.java

@@ -0,0 +1,81 @@
+package com.dowerx.quack.model;
+
+import java.sql.Array;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class Post {
+    public static final List<Post> ITEMS;
+
+    static {
+        ITEMS = Arrays.asList(
+                new Post(new User("username 1", "exmaple@example.com", "random_id"), "some content", null, 69, false, "random post id"),
+                new Post(new User("username 1", "exmaple@example.com", "random_id"), "some content", null, 69, false, "random post id")
+                );
+    }
+
+    public User getUser() {
+        return user;
+    }
+
+    public void setUser(User user) {
+        this.user = user;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public String getImage() {
+        return image;
+    }
+
+    public void setImage(String image) {
+        this.image = image;
+    }
+
+    public int getLikes() {
+        return likes;
+    }
+
+    public void setLikes(int likes) {
+        this.likes = likes;
+    }
+
+    public boolean isLiked() {
+        return liked;
+    }
+
+    public void setLiked(boolean liked) {
+        this.liked = liked;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public Post(User user, String content, String image, int likes, boolean liked, String id) {
+        this.user = user;
+        this.content = content;
+        this.image = image;
+        this.likes = likes;
+        this.liked = liked;
+        this.id = id;
+    }
+
+    private User user;
+    private String content;
+    private String image;
+    private int likes;
+    private boolean liked;
+    private String id;
+}

app/src/main/java/com/dowerx/quack/model/User.java

@@ -0,0 +1,37 @@
+package com.dowerx.quack.model;
+
+public class User {
+    public User(String username, String email, String id) {
+        this.username = username;
+        this.email = email;
+        this.id = id;
+    }
+
+    public String getUsername() {
+        return username;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    private String username;
+    private String email;
+    private String id;
+}

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

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:tint="#000000" android:viewportHeight="24" android:viewportWidth="24" android:width="24dp">
+      
+    <path android:fillColor="@android:color/white" android:pathData="M8,8H6v7c0,1.1 0.9,2 2,2h9v-2H8V8z"/>
+      
+    <path android:fillColor="@android:color/white" android:pathData="M20,3h-8c-1.1,0 -2,0.9 -2,2v6c0,1.1 0.9,2 2,2h8c1.1,0 2,-0.9 2,-2V5C22,3.9 21.1,3 20,3zM20,11h-8V7h8V11z"/>
+      
+    <path android:fillColor="@android:color/white" android:pathData="M4,12H2v7c0,1.1 0.9,2 2,2h9v-2H4V12z"/>
+    
+</vector>

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

@@ -0,0 +1,13 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:tint="#000000" android:viewportHeight="24" android:viewportWidth="24" android:width="24dp">
+      
+    <path android:fillColor="@android:color/white" android:pathData="M17,19.22H5V7h7V5H5C3.9,5 3,5.9 3,7v12c0,1.1 0.9,2 2,2h12c1.1,0 2,-0.9 2,-2v-7h-2V19.22z"/>
+      
+    <path android:fillColor="@android:color/white" android:pathData="M19,2h-2v3h-3c0.01,0.01 0,2 0,2h3v2.99c0.01,0.01 2,0 2,0V7h3V5h-3V2z"/>
+      
+    <path android:fillColor="@android:color/white" android:pathData="M7,9h8v2h-8z"/>
+      
+    <path android:fillColor="@android:color/white" android:pathData="M7,12l0,2l8,0l0,-2l-3,0z"/>
+      
+    <path android:fillColor="@android:color/white" android:pathData="M7,15h8v2h-8z"/>
+    
+</vector>

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

@@ -0,0 +1,5 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:tint="#000000" android:viewportHeight="24" android:viewportWidth="24" android:width="24dp">
+      
+    <path android:fillColor="@android:color/white" android:pathData="M11.99,2c-5.52,0 -10,4.48 -10,10s4.48,10 10,10 10,-4.48 10,-10 -4.48,-10 -10,-10zM15.6,8.34c1.07,0 1.93,0.86 1.93,1.93 0,1.07 -0.86,1.93 -1.93,1.93 -1.07,0 -1.93,-0.86 -1.93,-1.93 -0.01,-1.07 0.86,-1.93 1.93,-1.93zM9.6,6.76c1.3,0 2.36,1.06 2.36,2.36 0,1.3 -1.06,2.36 -2.36,2.36s-2.36,-1.06 -2.36,-2.36c0,-1.31 1.05,-2.36 2.36,-2.36zM9.6,15.89v3.75c-2.4,-0.75 -4.3,-2.6 -5.14,-4.96 1.05,-1.12 3.67,-1.69 5.14,-1.69 0.53,0 1.2,0.08 1.9,0.22 -1.64,0.87 -1.9,2.02 -1.9,2.68zM11.99,20c-0.27,0 -0.53,-0.01 -0.79,-0.04v-4.07c0,-1.42 2.94,-2.13 4.4,-2.13 1.07,0 2.92,0.39 3.84,1.15 -1.17,2.97 -4.06,5.09 -7.45,5.09z"/>
+    
+</vector>

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

@@ -0,0 +1,5 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:tint="#000000" android:viewportHeight="24" android:viewportWidth="24" android:width="24dp">
+      
+    <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_switcher.xml

@@ -7,4 +7,25 @@
     android:layout_height="match_parent"
     tools:context=".SwitcherActivity">
 
+    <FrameLayout
+        android:id="@+id/main_fragment_holder"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        app:layout_constraintBottom_toTopOf="@+id/bottom_nav_bar"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="1.0"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.0" />
+
+    <com.google.android.material.bottomnavigation.BottomNavigationView
+        android:id="@+id/bottom_nav_bar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:labelVisibilityMode="labeled"
+        app:menu="@menu/switcher_menu"/>
+
 </androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.recyclerview.widget.RecyclerView 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:id="@+id/list"
+    android:name="com.dowerx.quack.FeedFragment"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:layout_marginLeft="16dp"
+    android:layout_marginRight="16dp"
+    app:layoutManager="LinearLayoutManager"
+    tools:context=".FeedFragment"
+    tools:listitem="@layout/fragment_post" />

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

@@ -0,0 +1,27 @@
+<?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="wrap_content"
+    android:orientation="horizontal">
+
+    <TextView
+        android:id="@+id/username"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/placeholder_name"
+        android:layout_marginTop="20dp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.10"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <TextView
+        android:id="@+id/content"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="some random placeeholder post content"
+        app:layout_constraintTop_toBottomOf="@+id/username"
+        android:layout_margin="20dp"/>
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item
+        android:icon="@drawable/feed"
+        android:title="@string/feed"
+        android:id="@+id/nav_feed"/>
+    <item
+        android:icon="@drawable/search"
+        android:title="@string/search"
+        android:id="@+id/nav_search"/>
+    <item
+        android:icon="@drawable/post"
+        android:title="@string/post"
+        android:id="@+id/nav_post"/>
+    <item
+        android:icon="@drawable/profile"
+        android:title="@string/profile"
+        android:id="@+id/nav_profile"/>
+</menu>

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

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <dimen name="text_margin">16dp</dimen>
+</resources>

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

@@ -7,4 +7,9 @@
     <string name="title_activity_register">RegisterActivity</string>
     <string name="username_hint">Username</string>
     <string name="repeat_password_hint">Repeat Password</string>
+    <string name="feed">Feed</string>
+    <string name="post">Post</string>
+    <string name="profile">Profile</string>
+    <string name="search">Search</string>
+    <string name="placeholder_name">placeholder_name</string>
 </resources>

gradle/libs.versions.toml

@@ -11,6 +11,8 @@ kotlin = "1.9.0"
 lifecycleRuntimeKtx = "2.7.0"
 activityCompose = "1.9.0"
 composeBom = "2023.08.00"
+legacySupportV4 = "1.0.0"
+recyclerview = "1.3.0"
 
 [libraries]
 junit = { group = "junit", name = "junit", version.ref = "junit" }
@@ -30,6 +32,8 @@ ui-tooling-preview = { group = "androidx.compose.ui", name = "ui-tooling-preview
 ui-test-manifest = { group = "androidx.compose.ui", name = "ui-test-manifest" }
 ui-test-junit4 = { group = "androidx.compose.ui", name = "ui-test-junit4" }
 material3 = { group = "androidx.compose.material3", name = "material3" }
+legacy-support-v4 = { group = "androidx.legacy", name = "legacy-support-v4", version.ref = "legacySupportV4" }
+recyclerview = { group = "androidx.recyclerview", name = "recyclerview", version.ref = "recyclerview" }
 
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }