Question

我将数据从我的RecyclerView适配器传递到我的MainActiviy。我还使用适配器中的接口捕获MainActivity的onItemClick（）中的CardView项目位置，并使用intent将该位置传递给新的Activity（CardViewDetails）。问题是CardViewDetails加载了错误的CardView。我如何使用CardView＆＃34;位置＆＃34;启动正确的CardView？我在这里缺少什么？

MainActivity
...
public void passDataFromAdapter(Bundle bundle) {
    data = bundle.getString("spantimeinhours");
    data2 = bundle.getLong("timeinhours");
}

// This method works with an interface in the Adapter to capture the 
//  CardView item position.    
@Override
public void onItemClick(int position, final View view) {        

    Intent intent = new Intent(this,Details.class);        
    intent.putExtra("adapterSpanTimeInHours",data);
    intent.putExtra("adapterTimeInHours",data2);
    startActivity(intent);
}

Details
...
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_details);

    Bundle extras = getIntent().getExtras();
        msgFromAdapter = extras.getString("adapterSpanTimeInHours");
        msg2FromAdapter = extras.getLong("adapterTimeInHours", 0);
}     

Adapter
public class MyRecylerAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {

private void passDataFromAdapter(Bundle bundle) {
    if (context == null)
        return;
    if (context instanceof MainActivity) {
        MainActivity activity = (MainActivity) context;
        activity.passDataFromAdapter(bundle); // this method must be implemented inside `MainActivity`
    }
}

}

Answer 1

将其粘贴到onBindViewHolder

中

 viewHolder.myView.setOnClickListener(new View.OnClickListener() {
        // Handles the row being clicked.
        @Override
        public void onClick(View view) {
            int adapterPos = itemHolder.getAdapterPosition(); // get the item position.
            if (adapterPos != RecyclerView.NO_POSITION) {
                if (recyclerItemClickListener != null) {
                    recyclerItemClickListener.onItemClick(adapterPos, itemHolder.itemView);
                }
            }
        }
    });

Android：如何根据Intent中传递的位置修复CardView选择？

1 个答案: