将 onClickListener 设置为 onBindViewHolder 中的整个项目

Setting onClickListener to the whole item in onBindViewHolder

我有一个 RecyclerView Adapter,我想将 onClick 设置为整个项目,但是这段代码以及当我也尝试使用 myViewHolder.view.setOnClickListener(..) 时,两者仍然只听到点击复选框。

如何将 onClickListener 设置为整个 item

public class DeliveryPointSelectionAdapter extends RecyclerView.Adapter<DeliveryPointSelectionAdapter.MyViewHolder> {
    private static final String TAG = MyViewHolder.class.getSimpleName();
    private List<DeliveryPoint> deliveryPointList;

    interface OnItemCheckListener {
        void onItemCheck(DeliveryPoint deliveryPoint);
        void onItemUncheck(DeliveryPoint deliveryPoint);
    }

    @NonNull
    private OnItemCheckListener onItemCheckListener;

    public DeliveryPointSelectionAdapter(List<DeliveryPoint> deliveryPointList, @NonNull OnItemCheckListener onItemCheckListener) {
        this.deliveryPointList = deliveryPointList;
        this.onItemCheckListener = onItemCheckListener;
    }

    @NonNull
    @Override
    public DeliveryPointSelectionAdapter.MyViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int viewType) {
        View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.dialog_select_deliverypoints_to_change_item, viewGroup, false);
        return new MyViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull MyViewHolder myViewHolder, int i) {
        DeliveryPoint deliveryPoint = deliveryPointList.get(i);
        myViewHolder.tvFormattedString.setText(deliveryPoint.domesticAddress.formattedString);
        myViewHolder.checkBox.setChecked(deliveryPoint.isCheckedForLocationUpdate);

        myViewHolder.linearLayout.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                DeliveryPoint deliveryPoint1 = deliveryPointList.get(myViewHolder.getAdapterPosition());
                if (myViewHolder.checkBox.isChecked()) {
                    deliveryPoint1.setCheckedForLocationUpdate(true);
                    onItemCheckListener.onItemCheck(deliveryPoint1);
                } else {
                    deliveryPoint1.setCheckedForLocationUpdate(false);
                    onItemCheckListener.onItemUncheck(deliveryPoint1);
                }
            }
        });

//        myViewHolder.checkBox.setOnCheckedChangeListener((buttonView, isChecked) -> {
//            DeliveryPoint deliveryPoint1 = deliveryPointList.get(myViewHolder.getAdapterPosition());
//            if (myViewHolder.checkBox.isChecked()) {
//                deliveryPoint1.setCheckedForLocationUpdate(true);
//                onItemCheckListener.onItemCheck(deliveryPoint1);
//            } else {
//                deliveryPoint1.setCheckedForLocationUpdate(false);
//                onItemCheckListener.onItemUncheck(deliveryPoint1);
//            }
//        });
    }

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

    @Override
    public int getItemViewType(int position){
        return position;
    }

    public static class MyViewHolder extends RecyclerView.ViewHolder {
        TextView tvFormattedString;
        CheckBox checkBox;
        LinearLayout linearLayout;
        View view;

        MyViewHolder(View view) {
            super(view);
            tvFormattedString = (TextView) view.findViewById(R.id.tv_formatted_string);
            checkBox = view.findViewById(R.id.cb_deliverypoint_checked);
            linearLayout = view.findViewById(R.id.ll_delivery_points_layout);
            this.view = view;
        }
    }
}

项目视图布局:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/ll_delivery_points_layout"

    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="horizontal">

        <CheckBox
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:id="@+id/cb_deliverypoint_checked"/>

        <TextView
            android:id="@+id/tv_formatted_string"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center_vertical"
            android:paddingStart="25dp"
            android:paddingTop="15dp"
            android:paddingEnd="25dp"
            android:textColor="@color/gray_text_light"
            android:textSize="18sp"

            tools:ignore="RtlSymmetry" />
    </LinearLayout>
</LinearLayout>

像其他用户已经提到的那样myViewHolder.itemView.setOnClickListener 在 recyclerView holder 上设置 onClick。 但是,如果我错了,请纠正我,您似乎希望您的复选框 checked/unchecked 只有持有者点击。在这种情况下,您需要通过在布局中添加以下代码来禁用它 xml

               android:clickable="false"
               android:focusable="false"
               android:focusableInTouchMode="false"

否则点击复选框将点击并不会执行您为 itemview 点击编写的代码。

由于您将其设置为基于 deliveryPoint.isCheckedForLocationUpdate 选中,因此您可以 notifyItemChanged(position) 在单击后更新持有人复选框。

看看这是否有帮助。

编辑: 根据评论,如果你真的想在视图中切换你的复选框,你应该使用这样的东西:同样,如果你创建一个新对象 deliveryPoint1 没有对视图中的原始对象进行任何更改

myViewHolder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (myViewHolder.checkBox.isChecked()) {
                    deliveryPoint.setCheckedForLocationUpdate(false);
                    onItemCheckListener.onItemUncheck(deliveryPoint);
                } else {
                    deliveryPoint.setCheckedForLocationUpdate(true);
                    onItemCheckListener.onItemCheck(deliveryPoint);
                }
            }
        });

首先像这样创建一个 OnItemClickListener 变量:

public class DeliveryPointSelectionAdapter extends RecyclerView.Adapter<DeliveryPointSelectionAdapter.MyViewHolder> {
    private OnItemClickListener listener;

然后朝向class代码的底部,实现setOnItemClickListener方法

    public void setOnItemClickListener(OnItemClickListener
                                       listener){
this.listener = listener;

}

另外(在您的 class 代码末尾)您应该创建一个新界面来描述点击操作将生成的数据。像这样的事情:

public interface OnItemClickListener{
        void OnItemClick(
                int position);

}

然后尝试使用您在问题中描述的方法设置点击监听器 myViewHolder.view.setOnClickListener(..) 但是在 MyViewHolder(View view) 方法里面。 像这样:

      view.setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
               int position = getAdapterPosition();
if(position !=RecyclerView.NO_POSITION&& listener
        !=null){
    listener.OnItemClick(position);
}

您正在尝试选中复选框,当它现在被选中时,当它未被选中时取消选中。通过以下方式更改条件:

            if (myViewHolder.checkBox.isChecked()) {
                deliveryPoint1.setCheckedForLocationUpdate(true);
                onItemCheckListener.onItemCheck(deliveryPoint1);
            } else {
                deliveryPoint1.setCheckedForLocationUpdate(false);
                onItemCheckListener.onItemUncheck(deliveryPoint1);
            }
            notifyItemChanged(myViewHolder.getAdapterPosition());

并且记得在您的接口方法中调用 notifyDataSetChanged();您的适配器。