Question

我遇到了RecyclerView GridLayoutManager onClick()无效ListView的情况。与public class MoviesGridAdapter extends RecyclerView.Adapter<MoviesGridAdapter.PosterViewHolder> { private Context context; private List<Movies> movieItems = new ArrayList<>(); CustomItemClickListener listener; public MoviesGridAdapter(Context context, List<Movies> movieItems) { this.context = context; this.movieItems = movieItems; } @Override public PosterViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.movies_grid_view_item, parent, false); final MoviesGridAdapter.PosterViewHolder vh = new MoviesGridAdapter.PosterViewHolder(view); view.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { final Context zContext = context; Intent intent = new Intent(zContext, MoviesDetailActivity.class); Movies movies = movieItems.get(vh.getAdapterPosition()); intent.putExtra("Items Selection", movies.getPosterPath()); intent.putExtra("Items Selection 1", movies.getTitle()); intent.putExtra("Items Selection 2", movies.getReleaseDate()); intent.putExtra("Items Selection 3", movies.getVoteAverage()); intent.putExtra("Items Selection 4", movies.getOverview()); zContext.startActivity(intent); } }); return vh; } public void setMoviesData(List<Movies> moviesData) { movieItems = moviesData; notifyDataSetChanged(); } @Override public void onBindViewHolder(PosterViewHolder holder, final int position) { Context mcontext = context; Movies movies = movieItems.get(position); String posterUrlPath = movies.getPosterPath(); Picasso.with(mcontext) .load(Constants.MOVIES_POSTER_URL + posterUrlPath) .into(holder.poster); } @Override public int getItemCount() { return movieItems.size(); } public class PosterViewHolder extends RecyclerView.ViewHolder { ImageView poster; public PosterViewHolder(final View itemView) { super(itemView); poster = (ImageView) itemView.findViewById(R.id.movies_image_view_retrofit); } } }类似，当我点击/单击GridView中的图片时，onClick不会返回单个项目的详细信息。当我点击电影的海报时，它应该只显示有关特定电影的详细信息，而是在滚动视图中显示多个电影细节。

请看下面的代码：

public class MoviesFragment extends Fragment {

    private static final int COLUMN_COUNT = 2;
    private List<Movies> movieItems = new ArrayList<>();
    private RecyclerView recyclerView;
    private MoviesGridAdapter adapter;
    private Subscription subscription;

    public MoviesFragment() {
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.movies_fragment_content, container, false);

        GridLayoutManager layoutManager = new GridLayoutManager(getContext(), COLUMN_COUNT);
        recyclerView = (RecyclerView) view.findViewById(R.id.movies_recycler_view);
        recyclerView.setHasFixedSize(true);
        recyclerView.setLayoutManager(layoutManager);

        adapter = new MoviesGridAdapter(getActivity(), movieItems);
        recyclerView.setAdapter(adapter);

        return view;
    }

    @Override
    public void onStart() {
        super.onStart();

        if (movieItems != null) {
            adapter.setMoviesData(movieItems);
        }
        loadDate();
    }

    private void loadDate() {
        MoviesAPI api = RetrofitManager.getMoviesClient().create(MoviesAPI.class);

        subscription = api.getPopularMovies(APIKeys.MOVIES_DB_API_KEY)
                .observeOn(AndroidSchedulers.mainThread())
                .subscribeOn(Schedulers.io())
                .subscribe(
                        new Action1<MoviesResponse>() {
                            @Override
                            public void call(MoviesResponse response) {
                                movieItems = response.getMovies();
                                adapter.setMoviesData(response.getMovies());
                            }
                        }, new Action1<Throwable>() {
                            @Override
                            public void call(Throwable throwable) {

                            }
                        }
                );
    }

}

以下是片段：

{{1}}

谢谢大家的关注。我正在寻找的解决方案是：当我从网格视图中点击图片时，我需要有关特定电影的详细信息，如title，overview，releaseDate等。

Answer 1

使您的模型可以设置或逐个发送您的模型字段，但使用不同的关键字。您在此处添加了具有不同值的相同关键字：

intent.putExtra("Items Selection", movies.getPosterPath());
                intent.putExtra("Items Selection", movies.getTitle());
                intent.putExtra("Items Selection", movies.getReleaseDate());
                intent.putExtra("Items Selection", movies.getVoteAverage());
                intent.putExtra("Items Selection", movies.getOverview());

这是一个指导如何制作模型parcelable的教程链接。之后，您可以按照以下步骤更新适配器：

public class MoviesGridAdapter extends RecyclerView.Adapter<MoviesGridAdapter.PosterViewHolder> {

    private Context context;
    private List<Movies> movieItems = new ArrayList<>();
    CustomItemClickListener listener;

    public MoviesGridAdapter(Context context, List<Movies> movieItems) {
        this.context = context;
        this.movieItems = movieItems;
    }


    @Override
    public PosterViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.movies_grid_view_item, parent, false);
        return new PosterViewHolder(view);
    }

    public void setMoviesData(List<Movies> moviesData) {
        movieItems = moviesData;
        notifyDataSetChanged();
    }


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

        Movies movie = movieItems.get(position);

        String posterUrlPath = movie.getPosterPath();

        Picasso.with(mcontext)
                .load(Constants.MOVIES_POSTER_URL + posterUrlPath)
                .into(holder.poster);

        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {               
                Intent intent = new Intent(context, MoviesDetailActivity.class);          
                intent.putExtra("movie", movie) 
                context.startActivity(intent);
            }
        });

    }

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

    public class PosterViewHolder extends RecyclerView.ViewHolder {
        ImageView poster;
        public PosterViewHolder(View itemView) {
            super(itemView);
            poster = (ImageView) itemView.findViewById(R.id.movies_image_view_retrofit);
        }
    }

}

Answer 2

请勿在{{1}}中设置点击监听器。而是在onCreateViewHolder方法

中设置您的监听器

Android RecyclerView GridLayoutManager onClick无法正常工作

2 个答案: