Question

可能是愚蠢的问题，但我找不到为什么我的RecyclerView不响应点击的原因。 RV在一个片段中，我在适配器中添加了一个接口，并在片段中实现了它。但是，在尝试单击时，模拟器甚至都没有发出“点击”声音

这是我的适配器

from selenium import webdriver as wd
import pytest
import time
Chrome=wd.Chrome(executable_path=r"C:\Chrome\chromedriver.exe")
Firefox=wd.Firefox(executable_path=r"C:\geckodriver\geckodriver.exe")
class TestLogin():
    @pytest.fixture()
    def setup1(self):
        browsers=[Chrome, Firefox]
        for i in browsers:
            self.driver= i
            i.get("https://www.python.org")
            time.sleep(3)

        yield
        time.sleep(3)
        self.driver.close()

    def test_Python_website(self,setup1):
        self.driver.find_element_by_id("downloads").click()
        time.sleep(3)

}

这是片段

public class ArtistsRvAdapter extends RecyclerView.Adapter<ArtistsRvAdapter.ArtistViewHolder> {
private List<Artist> mArtists;
private Context mContext;

final private ItemClickListener mItemClickListener;

public ArtistsRvAdapter(Context c, ItemClickListener listener){
    mContext=c;
    mItemClickListener =listener;
}

@NonNull
@Override
public ArtistsRvAdapter.ArtistViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
    int layoutIdForListItem = R.layout.artist_list_item;
    LayoutInflater inflater = LayoutInflater.from(mContext);
    boolean shouldAttachToParentImmediately = false;
    View view = inflater.inflate(layoutIdForListItem, viewGroup, shouldAttachToParentImmediately);
    ArtistViewHolder viewHolder = new ArtistViewHolder(view);
    return viewHolder;
}

@Override
public void onBindViewHolder(@NonNull ArtistViewHolder artistViewHolder, int position) {
    Artist artist = this.mArtists.get(position);
    Log.d("rv adapter ", "artist img " + artist.getArtistImageUrl());
    String image = artist.getArtistImageUrl();

    Picasso.get()
            .load(image)
            .placeholder(R.drawable.ic_launcher_background)
            .error(R.drawable.ic_launcher_foreground)
            .into(artistViewHolder.artistImage);
        artistViewHolder.artistName.setText(artist.getArtistName());
    Log.d("rv adapter ", "artist name " + artist.getArtistName());
        artistViewHolder.artistGenre.setText(artist.getArtistGenre());
        artistViewHolder.concertDate.setText(artist.getConcertDate());
        artistViewHolder.concertLocation.setText(artist.getConcertLocation());
}

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

public class ArtistViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{

    ImageView artistImage;
    TextView artistName;
    TextView artistGenre;
    TextView concertLocation;
    TextView concertDate;

    public ArtistViewHolder(View itemView){
        super(itemView);
            artistImage = itemView.findViewById(R.id.artist_image);
            artistName = itemView.findViewById(R.id.artist_name);
            artistGenre = itemView.findViewById(R.id.artist_genre);
            concertLocation = itemView.findViewById(R.id.concert_location);
            concertDate = itemView.findViewById(R.id.concert_date);
    }

    @Override
    public void onClick(View v) {
        String elementID = mArtists.get(getAdapterPosition()).getKey();
        Log.d(" adapter " , "position clicked " + getAdapterPosition());
        mItemClickListener.onItemClickListener(elementID);
    }
}

public interface ItemClickListener {
     void onItemClickListener(String itemId);
  }

public void setArtists(List<Artist> artists){
    mArtists = artists;
    Log.d("rv " , "list artists " + mArtists);
    notifyDataSetChanged();
}

}

这是xml

public class BaseFragment extends Fragment implements ArtistsRvAdapter.ItemClickListener {

private ArtistsRvAdapter mAdapter;
private String LOG_TAG = BaseFragment.class.getSimpleName();
private View mRootView;
@BindView(R.id.rv)
RecyclerView recyclerView;
private Context mContext;
private AppDatabase mDb;

public BaseFragment(){}

@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

}

@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {

    mRootView= inflater.inflate(R.layout.base_fragment, container, false);
    ButterKnife.bind(this, mRootView);
    mContext = getActivity().getApplicationContext();
    RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(mContext);

    mDb = AppDatabase.getInstance(getActivity());

    mAdapter = new ArtistsRvAdapter(mContext, this);
    recyclerView.setLayoutManager(layoutManager);
    recyclerView.setAdapter(mAdapter);

    DividerItemDecoration dividerItemDecoration = new DividerItemDecoration(recyclerView.getContext(),
            ((LinearLayoutManager) layoutManager).getOrientation());
    recyclerView.addItemDecoration(dividerItemDecoration);

    setupViewModel();

    return mRootView;
}

private void setupViewModel(){
    Log.d(LOG_TAG, "getting artists from DB");
    DetailsViewModel viewModel = ViewModelProviders.of(getActivity()).get(DetailsViewModel.class);
    viewModel.getArtists().observe(this, new Observer<List<Artist>>() {
        @Override
        public void onChanged(List<Artist> artists) {
            mAdapter.setArtists(artists);
        }
    });
}

@Override
public void onItemClickListener(String itemId) {
    Intent i = new Intent(getActivity(), DetailsActivity.class);
    i.putExtra("artistId", itemId);
    startActivity(i);

}

Answer 1

在ArtistViewHolder之后在您的super(itemView);中添加

itemView.setOnClickListener(this);

Answer 2

请添加以下行“ itemView.setOnClickListener（this）;”在“ ArtistViewHolder”的构造函数中

 public ArtistViewHolder(View itemView){
        super(itemView);
            artistImage = itemView.findViewById(R.id.artist_image);
            artistName = itemView.findViewById(R.id.artist_name);
            artistGenre = itemView.findViewById(R.id.artist_genre);
            concertLocation = itemView.findViewById(R.id.concert_location);
            concertDate = itemView.findViewById(R.id.concert_date);

            itemView.setOnClickListener(this);
    };

RecyclerView片段内部不可点击

2 个答案: