Question

我想测试RecyclerView setOnClickListener，但它不会生效，问题是什么？

碎片：

public class CrimeListFragment extends Fragment {
private RecyclerView mRecyclerView;

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    final View view = inflater.inflate(R.layout.fragment_crime_list, container, false);
    mRecyclerView = (RecyclerView) view.findViewById(R.id.crime_list_view);
    mRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
    mRecyclerView.setAdapter(new CrimeAdapter(CrimeLab.get(getActivity()).getCrimes()));
    mRecyclerView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Toast.makeText(getActivity(), "test", Toast.LENGTH_LONG).show();
            Log.d("CrimeListFragment", "test");
        }
    });
    return view;
}

private class CrimeViewHolder extends RecyclerView.ViewHolder {
    private TextView mTitleTextView;

    public CrimeViewHolder(View itemView) {
        super(itemView);
    }

}

private class CrimeAdapter extends RecyclerView.Adapter {
    private List<Crime> mCrimes;


    public CrimeAdapter(List<Crime> crimes) {
        this.mCrimes = crimes;
    }

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        final LayoutInflater inflater = LayoutInflater.from(getActivity());
        final View view = inflater.inflate(R.layout.list_item_crime, parent, false);
        return new CrimeViewHolder(view);
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
    }

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

}

片段布局xml：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
              android:orientation="vertical">

    <android.support.v7.widget.RecyclerView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/crime_list_view"></android.support.v7.widget.RecyclerView>
</LinearLayout>

膨胀布局xml：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
                android:layout_width="match_parent"
                android:layout_height="match_parent">
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/list_item_crime_title"
        android:layout_alignParentLeft="true"
        android:textStyle="bold"
        android:padding="4dp"
        android:text="Title"/>

</RelativeLayout>

Answer 1

通过开始活动而不是敬酒来测试它，我有同样的问题yasterday id没有生效与烤面包但工作与实际工作

Answer 2

您可以创建自己的类来实现RecyclerView.OnItemTouchListener来处理OnClickListner：

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;


public class RecyclerItemClickListener implements RecyclerView.OnItemTouchListener {
  private OnItemClickListener mListener;

  public interface OnItemClickListener {
    public void onItemClick(View view, int position);
  }

  GestureDetector mGestureDetector;

  public RecyclerItemClickListener(Context context, OnItemClickListener listener) {
    mListener = listener;
    mGestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
      @Override public boolean onSingleTapUp(MotionEvent e) {
        return true;
      }
    });
  }

  @Override public boolean onInterceptTouchEvent(RecyclerView view, MotionEvent e) {
    View childView = view.findChildViewUnder(e.getX(), e.getY());
    if (childView != null && mListener != null && mGestureDetector.onTouchEvent(e)) {
      mListener.onItemClick(childView, view.getChildPosition(childView));
      return true;
    }
    return false;
  }

  @Override public void onTouchEvent(RecyclerView view, MotionEvent motionEvent) { }

  @Override
  public void onRequestDisallowInterceptTouchEvent (boolean disallowIntercept){}
}

使用方法：

    RecyclerView mRecyclerView = view.findViewById(R.id.crime_list_view);
    mRecyclerView.addOnItemTouchListener(
        new RecyclerItemClickListener(context, new RecyclerItemClickListener.OnItemClickListener() {
          @Override public void onItemClick(View view, int position) {
            // you can handle here
            Toast.makeText(getActivity(), "test", Toast.LENGTH_LONG).show();
            Log.d("CrimeListFragment", "test");

          }
        })
    );

Answer 3

RecyclerView不响应setOnClickListener，

我更新了用于获取recyclerView

中点击事件的适配器

private class CrimeAdapter extends RecyclerView.Adapter<CrimeAdapter.ViewHolder> {
    private List<Crime> mCrimes;


    public CrimeAdapter(List<Crime> crimes) {
        this.mCrimes = crimes;
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        final LayoutInflater inflater = LayoutInflater.from(getActivity());
        final View view = inflater.inflate(R.layout.list_item_crime, parent, false);
        ViewHolder viewHolder = new ViewHolder(view);
    return viewHolder;
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
 holder.place_TextView.setText("" + mCrimes.get(position).getTheStringValueYouWant());
    }

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

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

    TextView place_TextView;

    public ViewHolder(View itemView) {
        super(itemView);
        place_TextView = (TextView) itemView.findViewById(R.id.list_item_crime_title);
        place_TextView.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        Toast.makeText(getActivity(), "test", Toast.LENGTH_LONG).show();
    }
}
}

OnClick事件与我们在RecyclerView中使用的ListView中的事件不同。

随着自定义列表视图在其大小的视图和动画中不断增长，Google已尝试在您的手中提供更多灵活性。

您可以采取以下措施来获取点击事件岗位 OnItemClickListener in RecyclerView

为什么RecyclerView的setOnClickListener不会生效？

3 个答案: