RecyclerView onClick用于多个按钮并从Activity处理

Question

我使用RecyclerView与CardView和内部CardView有2个按钮.现在,通过静态类实现并覆盖事件(其工作)onClick来实现事件View.OnClickListenerViewHolder

    @Override
    public void onClick(View v) {

        if (v.getId() == mClassBtn.getId()){

        }
        else if (v.getId() == mDaysBtn.getId()){

        }
     }

寻找一个解决方案/模式来处理类Click中的Activity类

adapter = new ItemsListAdapter(getActivity(), data, new CustomItemClickListener() { 

    @override
    public void onItemClick(View v, int position) {

       Log.d(TAG, "clicked position:" + position);
       // which button clicked and separate action for each button
    } 
});
// CustomItemClickListener -- interface in the adapter class which holds the click event .

上面的代码工作正常,能够记录Clicks但无法区分哪个按钮已被点击.

感谢任何帮助.提前致谢.

Answer 1

这是实现这一目标的最佳方式: -

这就是我的实施方式

public class FollowersDetailsAdapter extends RecyclerView.Adapter<FollowersDetailsAdapter.MyViewHolder> {

    private List<GetUserFollowDetailsResponseData> followersList;
    Context context;
    public FollowersDetailsAdapterListener onClickListener;


    public class MyViewHolder extends RecyclerView.ViewHolder {
        public TextView rv_tv_follower_name, rv_tv_follower_desig;
        public CircleImageView rv_iv_follower_image;
        RelativeLayout rv_rel_layout_followers, rel_layout_followers;
        LikeButton rv_iv_follower_icon;

        public MyViewHolder(View view) {
            super(view);
            rv_rel_layout_followers = (RelativeLayout) view.findViewById(R.id.rv_rel_layout_followers);
            rel_layout_followers = (RelativeLayout) view.findViewById(R.id.rel_layout_followers);
            rv_iv_follower_image = (CircleImageView) view.findViewById(R.id.rv_iv_follower_image);
            rv_tv_follower_name = (TextView) view.findViewById(R.id.rv_tv_follower_name);
            rv_tv_follower_desig = (TextView) view.findViewById(R.id.rv_tv_follower_desig);
            rv_iv_follower_icon = (LikeButton) view.findViewById(R.id.rv_iv_follower_icon);
            rel_layout_followers.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    onClickListener.iconTextViewOnClick(v, getAdapterPosition());
                }
            });
        }

    }

    public FollowersDetailsAdapter(List<GetUserFollowDetailsResponseData> FollowersList, FollowersDetailsAdapterListener listener) {
        this.followersList = FollowersList;
        this.onClickListener = listener;

    }

    @Override
    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View itemView = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.followers_list_row, parent, false);

        return new MyViewHolder(itemView);
    }

    @Override
    public void onBindViewHolder(final MyViewHolder holder, final int position) {
        if (followersList.get(position).getImage() != null && !followersList.get(position).getImage().trim().equalsIgnoreCase("")) {
            Picasso.with(context)

                    .load(followersList.get(position).getImage())
                    .resize(200, 200).into(holder.rv_iv_follower_image);
        }

        holder.rv_tv_follower_name.setText(followersList.get(position).getName());
        holder.rv_tv_follower_desig.setText(followersList.get(position).getDescription());
        if (followersList.get(holder.getAdapterPosition()).getID() == Integer.parseInt(ApplicationPreference.getUserId())) {
            holder.rv_iv_follower_icon.setVisibility(View.GONE);
        } else {
            holder.rv_iv_follower_icon.setVisibility(View.VISIBLE);
            if (followersList.get(position).getIsFollowing() == 0) {
                holder.rv_iv_follower_icon.setLiked(false);
            } else if (followersList.get(position).getIsFollowing() == 1) {
                holder.rv_iv_follower_icon.setLiked(true);
            }


        }
        holder.rv_iv_follower_icon.setOnLikeListener(new OnLikeListener() {
            @Override
            public void liked(LikeButton likeButton) {

                onClickListener.iconImageViewOnClick(likeButton, position);
            }

            @Override
            public void unLiked(LikeButton likeButton) {
                onClickListener.iconImageUnFollowOnClick(likeButton, position);
            }
        });

    }

    public interface FollowersDetailsAdapterListener {

        void iconTextViewOnClick(View v, int position);

        void iconImageViewOnClick(View v, int position);

        void iconImageUnFollowOnClick(View v, int position);
    }

    @Override
    public int getItemCount() {
        return followersList.size();
    }
}

并在您初始化适配器的活动中 -

 followersDetailsAdapter = new FollowersDetailsAdapter(followersList, new FollowersDetailsAdapter.FollowersDetailsAdapterListener() {
            @Override
            public void iconTextViewOnClick(View v, int position) {
                gotoUserProfile(followersList.get(position).getID());

            }

            @Override
            public void iconImageViewOnClick(View v, int position) {

                followUserProfile(followersList.get(position).getID(),1);
            }

            @Override
            public void iconImageUnFollowOnClick(View v, int position){

                followUserProfile(followersList.get(position).getID(),0);
            }
        }); 

Answer 2

请尝试这个原则通过界面创建活动,适配器之间的通信,我希望这个原则可以帮助你:

接口:

public interface AdapterCallback {
    void onClickCallback(YourModel itemModel);
}

适配器:

public class YourAdapter extends RecyclerView.Adapter<YourAdapter.ViewHolder> {

private List<String> mList;
private AdapterCallback callback;
private Context context;

public YourAdapter(List<String> list, AdapterCallback adapterCallback) {
    this.mList = list;
    adapter = adapterCallback
}

@Override
public YourAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    context = parent.getContext();
    LayoutInflater inflater = LayoutInflater.from(context);
    View item = inflater.inflate(R.layout.item_recycler, parent, false);
    return new ViewHolder(item);
}

@Override
public void onBindViewHolder(YourAdapter.ViewHolder holder, int position) {
    YourModel itemModel = list.get(position);

    String lastName  = itemModel.getLastName();  // for example;
    String firstName = itemModel.getFirstName(); // for example;

    holder.tvFirstName.setText(firstName);
    holder.tvLastName.setText(lastName);

    holder.tvFirstName.setOnClickListener(
       // you can override this onClick into your Activity.
       adapterCallback.onClickCallback(itemModel));
    }
}

@Override
public int getItemCount() {
    return mList.size();
}

static class ViewHolder extends RecyclerView.ViewHolder {

    private TextView tvFirstName;
    private TextView tvLastName;

    ViewHolder(View itemView) {
        super(itemView);
        tvFirstName = (TextView) itemView.findViewById(R.id.tv_first);
        tvLastName  = (TextView) itemView.findViewById(R.id.tv_last);
    }

}

活动:

public class MyActivity extends AppCompatActivity implements AdapterCallback {

private YourAdapter adapter;
private List<String> items;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    // 1. init your list && fill it with needed data
    // 2. init your adapter 
    // 3. put your list as parameter into constructor + interface
    items = new ArrayList<String>() // empty
    adapter = new YourAdapter(items, this)
}

@Override
public void onClickCallback(YourModel itemModel) {
    Toast.makeText(this, itemModel.getFirstName(), Toast.LENGTH_SHORT).show();
}

我认为这些信息足以理解我的意思.同样的原则,您可以在界面中创建多个OnClick方法,或者为一些按钮添加一个onClick,并检查id或其他内容以获取所需的信息.祝好运