Merge pull request #3240 from ByteHamster/combined-search

WIP: Combined podcast search

1 files changed, 168 insertions, 0 deletions

diff --git a/app/src/main/java/de/danoeh/antennapod/fragment/CombinedSearchFragment.java b/app/src/main/java/de/danoeh/antennapod/fragment/CombinedSearchFragment.java
new file mode 100644
index 000000000..c19a176ee
--- /dev/null
+++ b/app/src/main/java/de/danoeh/antennapod/fragment/CombinedSearchFragment.java
@@ -0,0 +1,168 @@
+package de.danoeh.antennapod.fragment;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.support.v4.view.MenuItemCompat;
+import android.support.v7.widget.SearchView;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.GridView;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+import de.danoeh.antennapod.R;
+import de.danoeh.antennapod.activity.OnlineFeedViewActivity;
+import de.danoeh.antennapod.adapter.itunes.ItunesAdapter;
+import de.danoeh.antennapod.discovery.CombinedSearcher;
+import de.danoeh.antennapod.discovery.PodcastSearchResult;
+import de.danoeh.antennapod.menuhandler.MenuItemUtils;
+import io.reactivex.disposables.Disposable;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class CombinedSearchFragment extends Fragment {
+
+    private static final String TAG = "CombinedSearchFragment";
+
+    /**
+     * Adapter responsible with the search results
+     */
+    private ItunesAdapter adapter;
+    private GridView gridView;
+    private ProgressBar progressBar;
+    private TextView txtvError;
+    private Button butRetry;
+    private TextView txtvEmpty;
+
+    /**
+     * List of podcasts retreived from the search
+     */
+    private List<PodcastSearchResult> searchResults = new ArrayList<>();
+    private Disposable disposable;
+
+    /**
+     * Constructor
+     */
+    public CombinedSearchFragment() {
+        // Required empty public constructor
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setHasOptionsMenu(true);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        // Inflate the layout for this fragment
+        View root = inflater.inflate(R.layout.fragment_itunes_search, container, false);
+        gridView = root.findViewById(R.id.gridView);
+        adapter = new ItunesAdapter(getActivity(), new ArrayList<>());
+        gridView.setAdapter(adapter);
+
+        //Show information about the podcast when the list item is clicked
+        gridView.setOnItemClickListener((parent, view1, position, id) -> {
+            PodcastSearchResult podcast = searchResults.get(position);
+            Intent intent = new Intent(getActivity(), OnlineFeedViewActivity.class);
+            intent.putExtra(OnlineFeedViewActivity.ARG_FEEDURL, podcast.feedUrl);
+            intent.putExtra(OnlineFeedViewActivity.ARG_TITLE, podcast.title);
+            startActivity(intent);
+        });
+        progressBar = root.findViewById(R.id.progressBar);
+        txtvError = root.findViewById(R.id.txtvError);
+        butRetry = root.findViewById(R.id.butRetry);
+        txtvEmpty = root.findViewById(android.R.id.empty);
+
+        return root;
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        if (disposable != null) {
+            disposable.dispose();
+        }
+        adapter = null;
+    }
+
+    @Override
+    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        super.onCreateOptionsMenu(menu, inflater);
+        inflater.inflate(R.menu.itunes_search, menu);
+        MenuItem searchItem = menu.findItem(R.id.action_search);
+        final SearchView sv = (SearchView) MenuItemCompat.getActionView(searchItem);
+        MenuItemUtils.adjustTextColor(getActivity(), sv);
+        sv.setQueryHint(getString(R.string.search_label));
+        sv.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
+            @Override
+            public boolean onQueryTextSubmit(String s) {
+                sv.clearFocus();
+                search(s);
+                return true;
+            }
+
+            @Override
+            public boolean onQueryTextChange(String s) {
+                return false;
+            }
+        });
+        MenuItemCompat.setOnActionExpandListener(searchItem, new MenuItemCompat.OnActionExpandListener() {
+            @Override
+            public boolean onMenuItemActionExpand(MenuItem item) {
+                return true;
+            }
+
+            @Override
+            public boolean onMenuItemActionCollapse(MenuItem item) {
+                getActivity().getSupportFragmentManager().popBackStack();
+                return true;
+            }
+        });
+        MenuItemCompat.expandActionView(searchItem);
+    }
+
+    private void search(String query) {
+        if (disposable != null) {
+            disposable.dispose();
+        }
+
+        showOnlyProgressBar();
+
+        CombinedSearcher searcher = new CombinedSearcher(getContext());
+        disposable = searcher.search(query).subscribe(result -> {
+                searchResults = result;
+                progressBar.setVisibility(View.GONE);
+
+                adapter.clear();
+                adapter.addAll(searchResults);
+                adapter.notifyDataSetInvalidated();
+                gridView.setVisibility(!searchResults.isEmpty() ? View.VISIBLE : View.GONE);
+                txtvEmpty.setVisibility(searchResults.isEmpty() ? View.VISIBLE : View.GONE);
+
+            }, error -> {
+                Log.e(TAG, Log.getStackTraceString(error));
+                progressBar.setVisibility(View.GONE);
+                txtvError.setText(error.toString());
+                txtvError.setVisibility(View.VISIBLE);
+                butRetry.setOnClickListener(v -> search(query));
+                butRetry.setVisibility(View.VISIBLE);
+            });
+    }
+
+    private void showOnlyProgressBar() {
+        gridView.setVisibility(View.GONE);
+        txtvError.setVisibility(View.GONE);
+        butRetry.setVisibility(View.GONE);
+        txtvEmpty.setVisibility(View.GONE);
+        progressBar.setVisibility(View.VISIBLE);
+    }
+}