RecyclerView 点击事件

官方的RecyclerView是没有点击事件的。

不过我们可以自己写丫~比如下面的  adapter

public class MyAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> implements View.OnClickListener, View.OnLongClickListener {

    public interface Callback {        void onItemClicked(int index, boolean longClick);        void onIconClicked(int index);    }    private ArrayList<String> mItems;    private ArrayList<Integer> mSelected;    private Callback mCallback;    public MyAdapter(Callback callback) {        mCallback = callback;        mItems = new ArrayList<>();        mSelected = new ArrayList<>();    }    public void add(String item) {        mItems.add(item);        notifyItemInserted(mItems.size() - 1);    }    public void toggleSelected(int index) {        final boolean newState = !mSelected.contains(index);        if (newState)            mSelected.add(index);        else            mSelected.remove((Integer) index);        notifyItemChanged(index);    }    public void restoreState(Bundle in) {        //noinspection unchecked        mItems = (ArrayList<String>) in.getSerializable("[main_adapter_items]");        //noinspection unchecked        mSelected = (ArrayList<Integer>) in.getSerializable("[main_adapter_selected]");        notifyDataSetChanged();    }    public void clearSelected() {        mSelected.clear();        notifyDataSetChanged();    }    @Override    public RecyclerView.ViewHolderonCreateViewHolder(ViewGroup viewGroup, int i) {        View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.listitem_main, viewGroup, false);        return new MyViewHolder(view);    }    @Override    public void onBindViewHolder(RecyclerView.ViewHolder viewHolder, int i) {        mainViewHolder.view.setActivated(mSelected.contains(i));        mainViewHolder.view.setTag("item:" + i);        mainViewHolder.view.setOnClickListener(this);        mainViewHolder.view.setOnLongClickListener(this);        mainViewHolder.icon.setTag("icon:" + i);        mainViewHolder.icon.setOnClickListener(this);        mainViewHolder.title.setText(mItems.get(i));    }    @Override    public int getItemCount() {        return mItems.size();    }    public int getSelectedCount() {        return mSelected.size();    }    public String getItem(int index) {        return mItems.get(index);    }    @Override    public void onClick(View v) {        String[] tag = ((String) v.getTag()).split(":");        int index = Integer.parseInt(tag[1]);        if (tag[0].equals("icon")) {            if (mCallback != null)                mCallback.onIconClicked(index);        } else if (mCallback != null) {            mCallback.onItemClicked(index, false);        }    }    @Override    public boolean onLongClick(View v) {        String[] tag = ((String) v.getTag()).split(":");        int index = Integer.parseInt(tag[1]);        if (mCallback != null)            mCallback.onItemClicked(index, true);        return false;    }    public static class MyViewHolder extends RecyclerView.ViewHolder {        final View view;        final TextView title;        final View icon;        public MainViewHolder(View itemView) {            super(itemView);            view = itemView;            title = (TextView) itemView.findViewById(R.id.title);            icon = itemView.findViewById(R.id.icon);        }    }