Événements Swipe et OnClick dans RecyclerView

j'y suis arrivé en assignant OnClickListener pour les boutons dans le ViewHolder, et la création d'une interface pour les événements tactiles.

Le projet est sur GitHub: https://github.com/brnunes/SwipeableRecyclerView.

Dans mon cas, chaque élément est un CardView avec deux boutons, et je veux détecter les événements de toucher dans le CardView et Buttons. CardView mise en page ressemble à ceci:

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:card_view="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_margin="5dp"
    android:clickable="true"
    android:foreground="?android:attr/selectableItemBackground"
    android:orientation="vertical"
    card_view:cardCornerRadius="5dp">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TextView
            android:id="@+id/card_view_title"
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:layout_alignParentTop="true"
            android:layout_centerHorizontal="true"
            android:gravity="center"
            android:textColor="@android:color/black"
            android:textSize="24sp" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_below="@id/card_view_title"
            android:layout_centerHorizontal="true"
            android:gravity="center">

            <Button
                android:id="@+id/card_view_button1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Button1" />

            <Button
                android:id="@+id/card_view_button2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Button2" />
        </LinearLayout>
    </RelativeLayout>

</android.support.v7.widget.CardView>

Puis dans le Activity j'ai déclaré un interface pour recevoir les événements tactiles:

public interface OnItemTouchListener {
    public void onCardViewTap(View view, int position);
    public void onButton1Click(View view, int position);
    public void onButton2Click(View view, int position);
}

Et ViewHolder - je attribuer OnClickListeners pour les objets que je veux écouter, et faire appel à mon écouteur personnalisé:

public class CardViewAdapter extends RecyclerView.Adapter<CardViewAdapter.ViewHolder> {
    private List<String> cards;
    private OnItemTouchListener onItemTouchListener;

    public CardViewAdapter(List<String> cards, OnItemTouchListener onItemTouchListener) {
        this.cards = cards;
        this.onItemTouchListener = onItemTouchListener;
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
        View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.card_view_layout, viewGroup, false);
        return new ViewHolder(v);
    }

    @Override
    public void onBindViewHolder(ViewHolder viewHolder, int i) {
        viewHolder.title.setText(cards.get(i));
    }

    @Override
    public int getItemCount() {
        return cards == null ? 0 : cards.size();
    }

    public class ViewHolder extends RecyclerView.ViewHolder {
        private TextView title;
        private Button button1;
        private Button button2;

        public ViewHolder(View itemView) {
            super(itemView);
            title = (TextView) itemView.findViewById(R.id.card_view_title);
            button1 = (Button) itemView.findViewById(R.id.card_view_button1);
            button2 = (Button) itemView.findViewById(R.id.card_view_button2);

            button1.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    onItemTouchListener.onButton1Click(v, getPosition());
                }
            });

            button2.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    onItemTouchListener.onButton2Click(v, getPosition());
                }
            });

            itemView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    onItemTouchListener.onCardViewTap(v, getPosition());
                }
            });
        }
    }
}

enfin, instanciez la coutume OnItemTouchListener et passer à la CardViewAdapter constructeur:

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

    mItems = new ArrayList<>(30);
    for (int i = 0; i < 30; i++) {
        mItems.add(String.format("Card number %2d", i));
    }

    OnItemTouchListener itemTouchListener = new OnItemTouchListener() {
        @Override
        public void onCardViewTap(View view, int position) {
            Toast.makeText(MainActivity.this, "Tapped " + mItems.get(position), Toast.LENGTH_SHORT).show();
        }

        @Override
        public void onButton1Click(View view, int position) {
            Toast.makeText(MainActivity.this, "Clicked Button1 in " + mItems.get(position), Toast.LENGTH_SHORT).show();
        }

        @Override
        public void onButton2Click(View view, int position) {
            Toast.makeText(MainActivity.this, "Clicked Button2 in " + mItems.get(position), Toast.LENGTH_SHORT).show();
        }
    };

    mAdapter = new CardViewAdapter(mItems, itemTouchListener);

    mRecyclerView = (RecyclerView) findViewById(R.id.recycler_view);

    mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
    mRecyclerView.setAdapter(mAdapter);

    // ... Assign the swipe listener
}