Question

我想在我的Recycler View上实现OnItemClickListener和OnItemLongClickListener。我使用Android库BRVAH来设置适配器。

我期待OnItemLongClickListener的自定义声明，以便我可以把它放在我的（已经实现的）OnItemClickListener上。

    mAdapter.setOnItemClickListener(new BaseQuickAdapter.OnItemClickListener() {
        public void onItemClick(BaseQuicAdapter adapter, final View view, int position) {
        .....
        }
    });

Answer 1

你必须创建两个接口来处理click事件和长按事件到适配器中以进行recyclview。

像下面的接口一样进入适配器类..

onItemClickListner onItemClickListner;
onItemLongClickListner onItemLongClickListner;

public void setOnItemLongClickListner(RecyclerViewAdpater.onItemLongClickListner onItemLongClickListner) {
    this.onItemLongClickListner = onItemLongClickListner;
}

public void setOnItemClickListner(RecyclerViewAdpater.onItemClickListner onItemClickListner) {
    this.onItemClickListner = onItemClickListner;
}

public interface onItemClickListner {
    void onClick(String str);//pass your object types.
}
public interface onItemLongClickListner{
    void onLongClick(String str);
}
@Override
public void onBindViewHolder(ItemViewHolder holder, int position) {
    String data = mStringList.get(position); // if you pass object of class then create that class object.
    holder.textView.setText(data);
    // below code handle click event on recycler view item.
    holder.itemView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            onItemClickListner.onClick(data);
        }
    });
    holder.itemView.setOnLongClickListener(new View.OnLongClickListener() {
        @Override
        public boolean onLongClick(View view) {
            onItemLongClickListner.onLongClick("Hiii");
            return false;
        }
    });
}

然后在活动结束后，在适配器定义并绑定到Recycler视图后定义recycleler视图，然后获取如下所示的click事件..

recyclerViewAdpater.setOnItemClickListner(new RecyclerViewAdpater.onItemClickListner() {
        @Override
        public void onClick(String str) {
            Toast.makeText(getApplicationContext(),"Value of Click"+str,Toast.LENGTH_SHORT).show();
        }
    });
    recyclerViewAdpater.setOnItemLongClickListner(new RecyclerViewAdpater.onItemLongClickListner() {
        @Override
        public void onLongClick(String str) {
            Toast.makeText(getApplicationContext(),"Value of Long Click"+str,Toast.LENGTH_SHORT).show();

        }
    });

Answer 2

您可以使用库的以下方法。

   /**
     * Register a callback to be invoked when an item in this RecyclerView has
     * been long clicked and held
     *
     * @param listener The callback that will run
     */
    public void setOnItemLongClickListener(OnItemLongClickListener listener) {
        mOnItemLongClickListener = listener;
    }

所以要在你的代码中实现它

    mAdapter.setOnItemLongClickListener(new BaseQuickAdapter.OnItemLongClickListener() {
    boolean onItemLongClick(BaseQuickAdapter adapter, View view, int position) {
    .....
    }

Answer 3

进入适配器并找到ViewHolder类并编写以下代码

  public class MyViewHolder extends RecyclerView.ViewHolder{

        public MyViewHolder(View itemView) {
            super(itemView);

            itemView.setOnClickListener(new OnClickListener() {
                @Override
                public void onClick(View view) {
                    //call onClick handler here  
                }
            });

            itemView.setOnLongClickListener(new OnLongClickListener() {
                @Override
                public boolean onLongClick(View view) {
                    //call onLongClick handler here                        //Here you will return true
                    return true;
                }
            });

        }
    }

然后创建两个界面，如

 public interface OnMyLongClickListener{
        void onLongClick(int pos);
    }
    public interface OnMyClickClickListener{
        void onClick(int pos);
    }

在您的activity或fragment类中实现这两个接口，然后在接收事件中调用这些接口方法

在RecyclerView上实现OnItemClickListener和OnItemLongClickListener

3 个答案: