1、在Adapter中新建一个接口，定义接口内部的方法，并将该接口在adapter中实现
`public void setOnItemClickListener(OnItemClickListener listener) { this.mListener=listener; }
public interface OnItemClickListener { void onItemClick(int position); }`
`public class MySecondAdapter extends RecyclerView.Adapter<MySecondAdapter.InnerHolder> {
private final Context mContext;
private OnItemClickListener mListener;
public MySecondAdapter(Context context){
this.mContext=context;
}
@NonNull
@Override
public InnerHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = View.inflate(mContext, R.layout.item_my_recycler_view, null);
return new InnerHolder(view);
}
@Override
public void onBindViewHolder(@NonNull InnerHolder holder, final int position) {
holder.mTextView.setText("我是 "+position+" 号");
holder.mImageView.setImageResource(R.mipmap.ic_launcher_round);
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mListener.onItemClick(position);
}
});
}
public void setOnItemClickListener(OnItemClickListener listener) {
this.mListener=listener;
}
public interface OnItemClickListener {
void onItemClick(int position);
}
@Override
public int getItemCount() {
return 30;
}
public class InnerHolder extends RecyclerView.ViewHolder {
private final TextView mTextView;
private final ImageView mImageView;
public InnerHolder(@NonNull View itemView) {
super(itemView);
mTextView = itemView.findViewById(R.id.tv_title);
mImageView = itemView.findViewById(R.id.iv_pic);
}
}
}`
2、#### 对itemView设置点击事件
holder.itemView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { mListener.onItemClick(position); } });
3、对itemView设置点击事件
mMyAdapter.setOnItemClickListener(new MySecondAdapter.OnItemClickListener() { @Override public void onItemClick(int position) { Toast.makeText(MyRecyclerViewActivity.this,"position is "+position,Toast.LENGTH_SHORT).show(); } });
