RecyclerView：如何在ImageView上捕获onClick？ [英] RecyclerView: how to catch the onClick on an ImageView?

问题描述

我在RecyclerView的CardViews中有一个ImageView。
我想在ImageView上捕获onClick，就像我已经使用ListView一样。所以，在 public void onBindViewHolder（RecyclerView.ViewHolder holder，final int position）我试过：

I have an ImageView in CardViews of my RecyclerView. I would like to catch the onClick on the ImageView, like I already did with the ListView. So, in the public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) I tried with:

 myViewHolder.imageView.setClickable(true);
 myViewHolder.imageView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
               Log.d("TEST", "Clicked");
            }

但这完全被忽略。以下代码正在运行：

but this was totally ignored. The following code is working:

 myViewHolder.imageView.setImageResource(R.drawable.star_yellow);

我该怎么办？

推荐答案

这是我在我的工作项目。

Here's what I do in my project.

1. 在项目的某处有一个接口类：

1. Have an interface class somewhere in your project:

public interface RecyclerViewClickListener {

    void onRowClicked(int position);
    void onViewClicked(View v, int position);
}

在RecyclerView.Adapter类中，将此接口添加为字段并通过构造函数将其传递给适配器：

In your RecyclerView.Adapter class, add this interface as a field and pass it to adapter via constructor:

public class YourRecAdapter extends RecyclerView.Adapter<YourRecAdapter.SimpleViewHolder>{

    private RecyclerViewClickListener listener;

    public YourRecAdapter(RecyclerViewClickListener listener){
        this.listener = listener;
    }

    public static class SimpleViewHolder extends RecyclerView.ViewHolder {

        public SimpleViewHolder(View itemView, final RecyclerViewClickListener listener) {
            super(itemView);

            // find view ids here

            itemView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    if(listener != null)
                        listener.onRowClicked(getAdapterPosition());
                }
            });

            someViewholderView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    if(listener != null)
                        listener.onViewClicked(v, getAdapterPosition());
                }
            });
        }
    }
}

实施界面在您的活动/片段中：

Implement the interface in your Activity / Fragment:

public class YourFragment extends Fragment implements RecyclerViewClickListener {

   @Override
   public void onViewClicked(View v, int position) {
       if(v.getId == R.id.yourDesiredView){
           // Do your stuff here
       }
   }

   @Override
   public void onRowClicked(int position) {
       // Clicked entire row
   }
}

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