将 RecyclerView 放在 Image 前面

Question

我正在构建一个使用 RecyclerView 和 CardView 的应用程序。由于 RecyclerView 没有 onItemClickListener 方法，我找到了一个 class 执行此操作的实现，并且能够将此 class 插入我的项目中。

在每张卡片中，我放了一个 imageView（我使用 Glide 加载图像）和几个 TextView。当 TextView 在图像下方时，我可以完美地使用 onItemClickListener，但我决定将文本放在图像前面的 RelativeLayout 中，背景为黑色透明。

问题是在此更改后 onItemClickListener 停止工作。图像占据了整个 cardView，而 TextView 在它的前面。通过单击这些元素中的任何一个，该方法都不起作用。我认为我需要将 recyclerView 放在 activity 的前面，但我不知道该怎么做。我尝试使用 recyclerView.bringToFront() 但它没有用。

这是之前的卡片（点击白色区域时点击监听器正在工作）：

这是现在的卡片（当我点击任何地方时点击监听器不起作用）：

这是我的 ItemClickSupport class:

public class ItemClickSupport {
    private final RecyclerView mRecyclerView;
    private OnItemClickListener mOnItemClickListener;
    private OnItemLongClickListener mOnItemLongClickListener;
    private View.OnClickListener mOnClickListener = new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if (mOnItemClickListener != null) {
                RecyclerView.ViewHolder holder = mRecyclerView.getChildViewHolder(v);
                mOnItemClickListener.onItemClicked(mRecyclerView, holder.getAdapterPosition(), v);
            }
        }
    };
    private View.OnLongClickListener mOnLongClickListener = new View.OnLongClickListener() {
        @Override
        public boolean onLongClick(View v) {
            if (mOnItemLongClickListener != null) {
                RecyclerView.ViewHolder holder = mRecyclerView.getChildViewHolder(v);
                return mOnItemLongClickListener.onItemLongClicked(mRecyclerView, holder.getAdapterPosition(), v);
            }
            return false;
        }
    };
    private RecyclerView.OnChildAttachStateChangeListener mAttachListener
            = new RecyclerView.OnChildAttachStateChangeListener() {
        @Override
        public void onChildViewAttachedToWindow(View view) {
            if (mOnItemClickListener != null) {
                view.setOnClickListener(mOnClickListener);
            }
            if (mOnItemLongClickListener != null) {
                view.setOnLongClickListener(mOnLongClickListener);
            }
        }

        @Override
        public void onChildViewDetachedFromWindow(View view) {

        }
    };

    private ItemClickSupport(RecyclerView recyclerView) {
        mRecyclerView = recyclerView;
        mRecyclerView.setTag(R.id.item_click_support, this);
        mRecyclerView.addOnChildAttachStateChangeListener(mAttachListener);
    }

    public static ItemClickSupport addTo(RecyclerView view) {
        ItemClickSupport support = (ItemClickSupport) view.getTag(R.id.item_click_support);
        if (support == null) {
            support = new ItemClickSupport(view);
        }
        return support;
    }

    public static ItemClickSupport removeFrom(RecyclerView view) {
        ItemClickSupport support = (ItemClickSupport) view.getTag(R.id.item_click_support);
        if (support != null) {
            support.detach(view);
        }
        return support;
    }

    public ItemClickSupport setOnItemClickListener(OnItemClickListener listener) {
        mOnItemClickListener = listener;
        return this;
    }

    public ItemClickSupport setOnItemLongClickListener(OnItemLongClickListener listener) {
        mOnItemLongClickListener = listener;
        return this;
    }

    private void detach(RecyclerView view) {
        view.removeOnChildAttachStateChangeListener(mAttachListener);
        view.setTag(R.id.item_click_support, null);
    }

    public interface OnItemClickListener {

        void onItemClicked(RecyclerView recyclerView, int position, View v);
    }

    public interface OnItemLongClickListener {

        boolean onItemLongClicked(RecyclerView recyclerView, int position, View v);
    }
}

这是我在 Activity:

中调用它

ItemClickSupport.addTo(recyclerView).setOnItemClickListener(new ItemClickSupport.OnItemClickListener() {
            @Override
            public void onItemClicked(RecyclerView recyclerView, int position, View v) {

                Intent intent = new Intent(getBaseContext(), MovieDetails.class);
                intent.putExtra("movie_name", movies.get(position).getTitle());
                intent.putExtra("movie_rating", movies.get(position).getVoteAverage().toString());
                intent.putExtra("movie_description", movies.get(position).getOverview());
                intent.putExtra("movie_cover", movies.get(position).getPosterPath());
                intent.putExtra("movie_date", movies.get(position).getReleaseDate());
                intent.putExtra("movie_language", movies.get(position).getOriginalLanguage());
                intent.putExtra("movie_backdrop", movies.get(position).getBackdropPath());
                //intent.putExtra("album_name", albumList.get(position).getName());
                //intent.putExtra("album_thumbnail", Integer.toString(albumList.get(position).getThumbnail()));
                //intent.putExtra("number_songs", Integer.toString(albumList.get(position).getNumOfSongs()));

                startActivity(intent);
            }
        });

这是我的适配器：

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

    private Context mContext;
    private List<MovieItem> movieList;

    public class MyViewHolder extends RecyclerView.ViewHolder {
        public TextView title, count;
        public ImageView thumbnail, overflow, star1, star2, star3, star4, star5;

        public MyViewHolder(View view) {
            super(view);
            title = (TextView) view.findViewById(R.id.title);
            count = (TextView) view.findViewById(R.id.count);
            thumbnail = (ImageView) view.findViewById(R.id.thumbnail);
            star1 = (ImageView) view.findViewById(R.id.rating_image1);
            star2 = (ImageView) view.findViewById(R.id.rating_image2);
            star3 = (ImageView) view.findViewById(R.id.rating_image3);
            star4 = (ImageView) view.findViewById(R.id.rating_image4);
            star5 = (ImageView) view.findViewById(R.id.rating_image5);
            //overflow = (ImageView) view.findViewById(R.id.overflow);
        }
    }


    public MoviesAdapter(Context mContext, List<MovieItem> movieList) {
        this.mContext = mContext;
        this.movieList = movieList;
    }

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

        return new MyViewHolder(itemView);
    }

    @Override
    public void onBindViewHolder(final MoviesAdapter.MyViewHolder holder, int position) {
        MovieItem movie = movieList.get(position);
        holder.title.setText(movie.getTitle());
        holder.count.setText("R: " + movie.getVoteAverage().toString() + "/10");

        Glide.with(mContext).load("https://image.tmdb.org/t/p/w500" + movie.getPosterPath()).into(holder.thumbnail);

    }


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

Answer 1

我按照 Sahil 的建议设法解决了我的问题。我将 onClickListener 放在图像上而不是回收器视图上。为此，我必须将代码放入适配器的 onBindViewHolder 方法中（我不知道我可以这样做）。

事情是这样的：（我必须将变量 int position 声明为 final 以便在 onClickListener 中访问它并设置标志 Intent.FLAG_ACTIVITY_NEW_TASK 因为我从 Activity 外部开始另一个 Activity。

 @Override
public void onBindViewHolder(final MyViewHolder holder, final int position) {

holder.thumbnail.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(mContext, MovieDetails.class);
                intent.putExtra("movie_name", movieList.get(position).getTitle());
                intent.putExtra("movie_rating", movieList.get(position).getVoteAverage().toString());
                intent.putExtra("movie_description", movieList.get(position).getOverview());
                intent.putExtra("movie_cover", movieList.get(position).getPosterPath());
                intent.putExtra("movie_date", movieList.get(position).getReleaseDate());
                intent.putExtra("movie_language", movieList.get(position).getOriginalLanguage());
                intent.putExtra("movie_backdrop", movieList.get(position).getBackdropPath());
                intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                //intent.putExtra("album_name", albumList.get(position).getName());
                //intent.putExtra("album_thumbnail", Integer.toString(albumList.get(position).getThumbnail()));
                //intent.putExtra("number_songs", Integer.toString(albumList.get(position).getNumOfSongs()));

                mContext.startActivity(intent);
            }
        });
}

将 RecyclerView 放在 Image 前面

Put RecyclerView in front of Image

android

android-recyclerview

android-cardview

onitemclicklistener

cardview