Added Android code

[wl-app.git] / Android / app / src / main / java / com / moiseum / wolnelektury / view / news / NewsListFragment.java

diff --git a/Android/app/src/main/java/com/moiseum/wolnelektury/view/news/NewsListFragment.java b/Android/app/src/main/java/com/moiseum/wolnelektury/view/news/NewsListFragment.java
new file mode 100644 (file)
index 0000000..f10688c
--- /dev/null
+++ b/Android/app/src/main/java/com/moiseum/wolnelektury/view/news/NewsListFragment.java
@@ -0,0 +1,105 @@
+package com.moiseum.wolnelektury.view.news;
+
+import android.os.Bundle;
+import android.support.v7.widget.LinearLayoutManager;
+import android.view.View;
+import android.widget.Button;
+import android.widget.ProgressBar;
+import android.widget.Toast;
+
+import com.moiseum.wolnelektury.R;
+import com.moiseum.wolnelektury.base.mvp.PresenterFragment;
+import com.moiseum.wolnelektury.components.ProgressRecyclerView;
+import com.moiseum.wolnelektury.components.recycler.EndlessRecyclerOnScrollListener;
+import com.moiseum.wolnelektury.connection.models.NewsModel;
+import com.moiseum.wolnelektury.view.news.single.NewsActivity;
+
+import java.util.List;
+
+import butterknife.BindView;
+import butterknife.OnClick;
+
+public class NewsListFragment extends PresenterFragment<NewsListPresenter> implements NewsListView {
+
+    public static NewsListFragment newInstance() {
+        return new NewsListFragment();
+    }
+
+    @BindView(R.id.rvNews)
+    ProgressRecyclerView<NewsModel> rvNews;
+       @BindView(R.id.pbLoadMore)
+       ProgressBar pbLoadMore;
+       @BindView(R.id.btnReloadMore)
+       Button btnReloadMore;
+
+    private NewsListAdapter adapter;
+       private EndlessRecyclerOnScrollListener rvBooksScrollListener = new EndlessRecyclerOnScrollListener() {
+               @Override
+               public void onLoadMore() {
+                       if (adapter.getItemCount() > 0) {
+                               getPresenter().loadMoreNews();
+                       }
+               }
+       };
+
+    @Override
+    protected NewsListPresenter createPresenter() {
+        return new NewsListPresenter(this);
+    }
+
+    @Override
+    public int getLayoutResourceId() {
+        return R.layout.fragment_news;
+    }
+
+    @Override
+    public void prepareView(View view, Bundle savedInstanceState) {
+           LinearLayoutManager layoutManager = new LinearLayoutManager(getContext());
+           rvNews.setLayoutManager(layoutManager);
+           rvNews.addOnScrollListener(rvBooksScrollListener);
+
+           adapter = new NewsListAdapter(getContext());
+           adapter.setOnItemClickListener((item, view1, position) -> getPresenter().onNewsClicked(item));
+           rvNews.setAdapter(adapter);
+    }
+
+       @Override
+       public void setData(List<NewsModel> data) {
+               if (adapter.getItemCount() == 0) {
+                       rvNews.setItems(data);
+               } else {
+                       rvNews.addItems(data);
+               }
+       }
+
+       @Override
+       public void setProgressVisible(boolean visible) {
+               if (adapter.getItemCount() == 0) {
+                       rvNews.setProgressVisible(visible);
+               } else {
+                       pbLoadMore.setVisibility(visible ? View.VISIBLE : View.GONE);
+               }
+       }
+
+       @Override
+       public void showError(Exception e) {
+               Toast.makeText(getContext(), R.string.loading_results_failed, Toast.LENGTH_SHORT).show();
+               if (adapter.getItemCount() != 0) {
+                       btnReloadMore.setVisibility(View.VISIBLE);
+               } else {
+                       rvNews.showRetryButton(() -> getPresenter().loadMoreNews());
+               }
+       }
+
+       @Override
+       public void launchNews(NewsModel news) {
+               startActivity(new NewsActivity.NewsIntent(news, getContext()));
+       }
+
+       @OnClick(R.id.btnReloadMore)
+       public void onReloadMoreClicked() {
+               btnReloadMore.setVisibility(View.GONE);
+               pbLoadMore.setVisibility(View.VISIBLE);
+               getPresenter().loadMoreNews();
+       }
+}
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