Android news app free source code

Here is a free source code for an Android news app:

News App Source Code

This is a basic news app that fetches news articles from a JSON API and displays them in a list view. The app includes features such as:

Code Structure

The code is divided into the following packages:

Code Files

Here are the main code files:

Code Snippets

Here are some code snippets to give you an idea of how the app works:

MainActivity.java

public class MainActivity extends AppCompatActivity {
    private ListView listView;
    private NewsAdapter adapter;
    private NewsAPI api;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        listView = findViewById(R.id.list_view);
        adapter = new NewsAdapter(this);
        listView.setAdapter(adapter);

        api = new NewsAPI();
        api.getNewsArticles(new NewsAPI.OnNewsArticlesReceived() {
            @Override
            public void onNewsArticlesReceived(List<NewsArticle> articles) {
                adapter.setNewsArticles(articles);
                adapter.notifyDataSetChanged();
            }
        });
    }
}

NewsAdapter.java

public class NewsAdapter extends BaseAdapter {
    private Context context;
    private List<NewsArticle> newsArticles;

    public NewsAdapter(Context context) {
        this.context = context;
        this.newsArticles = new ArrayList<>();
    }

    public void setNewsArticles(List<NewsArticle> newsArticles) {
        this.newsArticles = newsArticles;
    }

    @Override
    public int getCount() {
        return newsArticles.size();
    }

    @Override
    public NewsArticle getItem(int position) {
        return newsArticles.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View view = convertView;
        if (view == null) {
            view = LayoutInflater.from(context).inflate(R.layout.news_item, parent, false);
        }

        NewsArticle article = getItem(position);
        TextView titleTextView = view.findViewById(R.id.title_text_view);
        TextView descriptionTextView = view.findViewById(R.id.description_text_view);
        ImageView imageView = view.findViewById(R.id.image_view);

        titleTextView.setText(article.getTitle());
        descriptionTextView.setText(article.getDescription());
        imageView.setImageResource(article.getImageResourceId());

        return view;
    }
}

NewsArticle.java

public class NewsArticle {
    private String title;
    private String description;
    private int imageResourceId;

    public NewsArticle(String title, String description, int imageResourceId) {
        this.title = title;
        this.description = description;
        this.imageResourceId = imageResourceId;
    }

    public String getTitle() {
        return title;
    }

    public String getDescription() {
        return description;
    }

    public int getImageResourceId() {
        return imageResourceId;
    }
}

NewsAPI.java

public class NewsAPI {
    private static final String API_URL = "https://newsapi.org/v2/top-headlines?country=us&apiKey=YOUR_API_KEY";

    public void getNewsArticles(OnNewsArticlesReceived listener) {
        OkHttpClient client = new OkHttpClient();
        Request request = new Request.Builder()
               .url(API_URL)
               .build();
        client.newCall(request).enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                listener.onNewsArticlesReceived(null);
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                String responseBody = response.body().string();
                List<NewsArticle> articles = parseJson(responseBody);
                listener.onNewsArticlesReceived(articles);
            }
        });
    }

    private List<NewsArticle> parseJson(String json) {
        // Parse the JSON response and return a list of NewsArticle objects
    }
}

SearchFragment.java

public class SearchFragment extends Fragment {
    private EditText searchEditText;
    private ListView searchListView;
    private NewsAdapter adapter;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.search_fragment, container, false);

        searchEditText = view.findViewById(R.id.search_edit_text);
        searchListView = view.findViewById(R.id.search_list_view);
        adapter = new NewsAdapter(getContext());
        searchListView.setAdapter(adapter);

        searchEditText.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
                adapter.getFilter().filter(s);
            }

            @Override
            public void afterTextChanged(Editable s) {
            }
        });

        return view;
    }
}

styles.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>
</resources>

strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="app_name">News App</string>
    <string name="search_hint">Search for news articles</string>
</resources>

This is just a basic example to get you started. You will need to modify the code to fit your specific requirements and add more features as needed.

Note: This code uses the News API from newsapi.org, which is a free API that provides news articles from various sources. You will need to obtain an API key from the website and replace YOUR_API_KEY with your actual API key.