Android-builders-club/OsmAnd
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

Subscribe saved articles list to updates; add the ability to delete saved article from list

Browse source
This commit is contained in:
Alex Sytnyk 2018-04-11 01:18:53 +03:00
parent c1b12a6724
commit da4b8335e1
2 changed files with 103 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
OsmAnd/src/net/osmand/plus/wikivoyage/explore/SavedArticlesRvAdapter.java
View file

@ -34,11 +34,6 @@ public class SavedArticlesRvAdapter extends RecyclerView.Adapter<RecyclerView.Vi
SavedArticlesRvAdapter(OsmandApplication app) {
this.app = app;
List<WikivoyageArticle> savedArticles = WikivoyageLocalDataHelper.getInstance(app).getSavedArticles();
if (!savedArticles.isEmpty()) {
items.add(app.getString(R.string.saved_articles));
items.addAll(savedArticles);
}
int colorId = app.getSettings().isLightContent()
? R.color.wikivoyage_active_light : R.color.wikivoyage_active_dark;
IconsCache ic = app.getIconsCache();
@ -96,6 +91,16 @@ public class SavedArticlesRvAdapter extends RecyclerView.Adapter<RecyclerView.Vi
return items.get(position);
}
@NonNull
public List<Object> getItems() {
return items;
}
public void setItems(List<Object> items) {
this.items.clear();
this.items.addAll(items);
}
static class HeaderVH extends RecyclerView.ViewHolder {
final TextView title;
@ -149,8 +154,7 @@ public class SavedArticlesRvAdapter extends RecyclerView.Adapter<RecyclerView.Vi
public void onClick(View view) {
Object item = getItemByPosition();
if (item != null && item instanceof WikivoyageArticle) {
WikivoyageArticle article = (WikivoyageArticle) item;
Toast.makeText(app, "delete: " + article.getTitle(), Toast.LENGTH_SHORT).show();
WikivoyageLocalDataHelper.getInstance(app).removeArticleFromSaved((WikivoyageArticle) item);
}
}
});

94
OsmAnd/src/net/osmand/plus/wikivoyage/explore/SavedArticlesTabFragment.java
View file

@ -3,6 +3,7 @@ package net.osmand.plus.wikivoyage.explore;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v7.util.DiffUtil;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
@ -11,18 +12,107 @@ import android.view.ViewGroup;
import net.osmand.plus.R;
import net.osmand.plus.base.BaseOsmAndFragment;
import net.osmand.plus.wikivoyage.data.WikivoyageArticle;
import net.osmand.plus.wikivoyage.data.WikivoyageLocalDataHelper;
public class SavedArticlesTabFragment extends BaseOsmAndFragment {
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class SavedArticlesTabFragment extends BaseOsmAndFragment implements WikivoyageLocalDataHelper.Listener {
private WikivoyageLocalDataHelper dataHelper;
private SavedArticlesRvAdapter adapter;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
dataHelper = WikivoyageLocalDataHelper.getInstance(getMyApplication());
adapter = new SavedArticlesRvAdapter(getMyApplication());
final View mainView = inflater.inflate(R.layout.fragment_saved_articles_tab, container, false);
final RecyclerView rv = (RecyclerView) mainView.findViewById(R.id.recycler_view);
rv.setLayoutManager(new LinearLayoutManager(getContext()));
rv.setAdapter(new SavedArticlesRvAdapter(getMyApplication()));
rv.setAdapter(adapter);
return mainView;
}
@Override
public void onResume() {
super.onResume();
adapter.setItems(getItems());
adapter.notifyDataSetChanged();
dataHelper.setListener(this);
}
@Override
public void onPause() {
super.onPause();
dataHelper.setListener(null);
}
@Override
public void savedArticlesUpdated() {
List<Object> newItems = getItems();
SavedArticlesDiffCallback diffCallback = new SavedArticlesDiffCallback(adapter.getItems(), newItems);
adapter.setItems(newItems);
DiffUtil.calculateDiff(diffCallback).dispatchUpdatesTo(adapter);
}
private List<Object> getItems() {
List<Object> items = new ArrayList<>();
List<WikivoyageArticle> savedArticles = dataHelper.getSavedArticles();
if (!savedArticles.isEmpty()) {
Collections.reverse(savedArticles);
items.add(getString(R.string.saved_articles));
items.addAll(savedArticles);
}
return items;
}
private static class SavedArticlesDiffCallback extends DiffUtil.Callback {
private List<Object> oldItems;
private List<Object> newItems;
SavedArticlesDiffCallback(List<Object> oldItems, List<Object> newItems) {
this.oldItems = oldItems;
this.newItems = newItems;
}
@Override
public int getOldListSize() {
return oldItems.size();
}
@Override
public int getNewListSize() {
return newItems.size();
}
@Override
public boolean areItemsTheSame(int oldItemPosition, int newItemPosition) {
Object oldItem = oldItems.get(oldItemPosition);
Object newItem = newItems.get(newItemPosition);
return (oldItem instanceof String && newItem instanceof String) || oldItem == newItem;
}
@Override
public boolean areContentsTheSame(int oldItemPosition, int newItemPosition) {
Object oldItem = oldItems.get(oldItemPosition);
Object newItem = newItems.get(newItemPosition);
if (oldItem instanceof String && newItem instanceof String) {
return false;
} else if (oldItem instanceof WikivoyageArticle && newItem instanceof WikivoyageArticle) {
WikivoyageArticle oldArticle = (WikivoyageArticle) oldItem;
WikivoyageArticle newArticle = (WikivoyageArticle) newItem;
return oldArticle.getCityId() == newArticle.getCityId()
&& oldArticle.getLang().equals(newArticle.getLang());
}
return false;
}
}
}