get feed

app/build.gradle

@@ -1,6 +1,7 @@
 plugins {
     alias(libs.plugins.android.application)
     alias(libs.plugins.jetbrains.kotlin.android)
+    id 'com.google.gms.google-services'
 }
 
 android {
@@ -9,7 +10,7 @@ android {
 
     defaultConfig {
         applicationId "com.dowerx.quack"
-        minSdk 21
+        minSdk 23
         targetSdk 34
         versionCode 1
         versionName "1.0"
@@ -69,4 +70,8 @@ dependencies {
     androidTestImplementation libs.ui.test.junit4
     debugImplementation libs.ui.tooling
     debugImplementation libs.ui.test.manifest
+
+    implementation platform('com.google.firebase:firebase-bom:33.0.0')
+    implementation 'com.google.firebase:firebase-auth'
+    implementation 'com.google.firebase:firebase-firestore:25.0.0'
 }

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

@@ -2,41 +2,36 @@ package com.dowerx.quack;
 
 import android.content.Context;
 import android.os.Bundle;
-
+import android.util.Log;
-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 androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+import androidx.loader.app.LoaderManager;
+import androidx.loader.content.Loader;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
 import com.dowerx.quack.model.Post;
+import com.dowerx.quack.service.PostService;
 
-/**
+import java.util.List;
- * A fragment representing a list of Items.
+
- */
+public class FeedFragment extends Fragment implements LoaderManager.LoaderCallbacks<List<Post>> {
-public class FeedFragment extends Fragment {
+
+    private RecyclerView recyclerView;
 
-    // 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) {
+    public static FeedFragment newInstance() {
         FeedFragment fragment = new FeedFragment();
         Bundle args = new Bundle();
-        args.putInt(ARG_COLUMN_COUNT, columnCount);
         fragment.setArguments(args);
         return fragment;
     }
@@ -45,9 +40,7 @@ public class FeedFragment extends Fragment {
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
-        if (getArguments() != null) {
+        LoaderManager.getInstance(this).initLoader(1, null, this);
-            mColumnCount = getArguments().getInt(ARG_COLUMN_COUNT);
-        }
     }
 
     @Override
@@ -55,18 +48,31 @@ public class FeedFragment extends Fragment {
                              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;
+            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;
     }
+
+    @NonNull
+    @Override
+    public Loader<List<Post>> onCreateLoader(int id, @Nullable Bundle args) {
+        Log.d(this.getClass().getName(), "onCreateLoader");
+        return new PostService.GetFeed(getContext());
+    }
+
+    @Override
+    public void onLoadFinished(@NonNull Loader<List<Post>> loader, List<Post> data) {
+        Log.d(this.getClass().getName(), "onLoadFinished");
+        Log.d(this.getClass().getName(), data.toString());
+        recyclerView.setAdapter(new PostRecyclerViewAdapter(data));
+    }
+
+    @Override
+    public void onLoaderReset(@NonNull androidx.loader.content.Loader loader) {
+
+    }
+
 }

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

@@ -3,6 +3,8 @@ package com.dowerx.quack;
 import android.content.Intent;
 import android.os.Bundle;
 import android.view.View;
+import android.widget.EditText;
+import android.widget.Toast;
 
 import androidx.activity.EdgeToEdge;
 import androidx.appcompat.app.AppCompatActivity;
@@ -10,8 +12,12 @@ import androidx.core.graphics.Insets;
 import androidx.core.view.ViewCompat;
 import androidx.core.view.WindowInsetsCompat;
 
+import com.google.firebase.auth.FirebaseAuth;
+
 public class MainActivity extends AppCompatActivity {
 
+    private FirebaseAuth fbs;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -22,11 +28,27 @@ public class MainActivity extends AppCompatActivity {
             v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
             return insets;
         });
+
+        fbs = FirebaseAuth.getInstance();
     }
 
     public void login(View view) {
-        // TODO: login
+        String email = String.valueOf(((EditText)findViewById(R.id.email)).getText());
+        String password = String.valueOf(((EditText)findViewById(R.id.password)).getText());
+
+        if (email.isEmpty() || password.isEmpty())
+            return;
+
+        fbs.signInWithEmailAndPassword(email, password).addOnCompleteListener(this, task -> {
+            if (task.isSuccessful()) {
                 startActivity(new Intent(this, SwitcherActivity.class));
+            } else {
+                Toast toast = new Toast(this);
+                toast.setText("login failed");
+                toast.setDuration(Toast.LENGTH_LONG);
+                toast.show();
+            }
+        });
     }
 
     public void redirect_register(View view) {

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

@@ -3,6 +3,8 @@ package com.dowerx.quack;
 import android.content.Intent;
 import android.os.Bundle;
 import android.view.View;
+import android.widget.EditText;
+import android.widget.Toast;
 
 import androidx.activity.EdgeToEdge;
 import androidx.appcompat.app.AppCompatActivity;
@@ -10,8 +12,12 @@ import androidx.core.graphics.Insets;
 import androidx.core.view.ViewCompat;
 import androidx.core.view.WindowInsetsCompat;
 
+import com.google.firebase.auth.FirebaseAuth;
+
 public class RegisterActivity extends AppCompatActivity {
 
+    private FirebaseAuth fbs;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -22,10 +28,40 @@ public class RegisterActivity extends AppCompatActivity {
             v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
             return insets;
         });
+
+        fbs = FirebaseAuth.getInstance();
     }
 
     public void register(View view) {
-        // TODO: register
+        String email = String.valueOf(((EditText)findViewById(R.id.email)).getText());
+        String password = String.valueOf(((EditText)findViewById(R.id.password)).getText());
+        String rePassword = String.valueOf(((EditText)findViewById(R.id.repeat_password)).getText());
+
+        if (email.isEmpty() || password.isEmpty() || rePassword.isEmpty())
+            return;
+
+        if (!password.equals(rePassword)) {
+            Toast toast = new Toast(this);
+            toast.setText("passwords don't match");
+            toast.setDuration(Toast.LENGTH_LONG);
+            toast.show();
+            return;
+        }
+
+        fbs.createUserWithEmailAndPassword(email, password).addOnCompleteListener(this, task -> {
+           if (task.isSuccessful()) {
+               Toast toast = new Toast(this);
+               toast.setText("succesful register");
+               toast.setDuration(Toast.LENGTH_LONG);
+               toast.show();
+               startActivity(new Intent(this, MainActivity.class));
+           } else {
+               Toast toast = new Toast(this);
+               toast.setText("login failed");
+               toast.setDuration(Toast.LENGTH_LONG);
+               toast.show();
+           }
+        });
     }
 
     public void redirect_login(View view) {

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

@@ -6,27 +6,6 @@ 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"),
-                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"),
-                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"),
-                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"),
-                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"),
-                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"),
-                new Post(new User("username 1", "exmaple@example.com", "random_id"), "some content", null, 69, false, "random post id"),
-                new Post(new User("username 2", "exmaple@example.com", "random_id2"), "some content 2", null, 69, false, "random post id2")
-                );
-    }
-
     public User getUser() {
         return user;
     }

app/src/main/java/com/dowerx/quack/service/AuthService.java

@@ -0,0 +1,4 @@
+package com.dowerx.quack.service;
+
+public class AuthService {
+}

app/src/main/java/com/dowerx/quack/service/PostService.java

@@ -0,0 +1,67 @@
+package com.dowerx.quack.service;
+
+import android.content.Context;
+import android.util.Log;
+import android.widget.Toast;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.loader.content.AsyncTaskLoader;
+
+import com.dowerx.quack.model.Post;
+import com.dowerx.quack.model.User;
+import com.google.android.gms.tasks.Task;
+import com.google.android.gms.tasks.Tasks;
+import com.google.firebase.firestore.CollectionReference;
+import com.google.firebase.firestore.DocumentSnapshot;
+import com.google.firebase.firestore.FirebaseFirestore;
+import com.google.firebase.firestore.Query;
+import com.google.firebase.firestore.QueryDocumentSnapshot;
+import com.google.firebase.firestore.QuerySnapshot;
+
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+public class PostService {
+    public static class GetFeed extends AsyncTaskLoader<List<Post>> {
+
+        public GetFeed(@NonNull Context context) {
+            super(context);
+        }
+
+        @Nullable
+        @Override
+        public List<Post> loadInBackground() {
+            List<Post> posts = new LinkedList<>();
+
+            FirebaseFirestore db = FirebaseFirestore.getInstance();
+            try {
+                for (QueryDocumentSnapshot post : Tasks.await(db.collection("/post").get())) {
+                    DocumentSnapshot user = Tasks.await(post.getDocumentReference("user").get());
+                    String username = user.get("username", String.class);
+                    String userid = user.get("id", String.class);
+                    posts.add(new Post(
+                            new User(username, "", userid),
+                            post.get("content", String.class),
+                            post.get("image", String.class),
+                            0,
+                            false,
+                            post.getId()
+                    ));
+                }
+            } catch (ExecutionException | InterruptedException e) {
+                throw new RuntimeException(e);
+            }
+
+            return posts;
+        }
+
+        @Override
+        protected void onStartLoading() {
+            forceLoad();
+        }
+    }
+}

build.gradle

@@ -2,4 +2,6 @@
 plugins {
 alias(libs.plugins.android.application) apply false
     alias(libs.plugins.jetbrains.kotlin.android) apply false
+
+    id 'com.google.gms.google-services' version '4.4.1' apply false
 }