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Question

我有错误行

  

FragmentManager fm = getFragmentManager（）;

点击时传递活动的任何解决方案？那么我需要什么？

public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewHolders> {

private List<ItemObject> itemList;
private Context context;


public RecyclerViewAdapter(Context context, List<ItemObject> itemList) {
    this.itemList = itemList;
    this.context = context;
}

@Override
public RecyclerViewHolders onCreateViewHolder(ViewGroup parent, int viewType) {

    View layoutView = LayoutInflater.from(parent.getContext()).inflate(R.layout.card_view_list, null);
    RecyclerViewHolders rcv = new RecyclerViewHolders(layoutView);
    return rcv;
}

@Override
public void onBindViewHolder(final RecyclerViewHolders holder, final int position) {
    holder.cardText.setText(itemList.get(position).getName());
    holder.cardPhoto.setImageResource(itemList.get(position).getPhoto());

    holder.itemView.setOnClickListener(new View.OnClickListener() {
        @Override public void onClick(View v) {

            switch (position){
                case 0:

                    FragmentManager fm = getFragmentManager();

                    FragmentTransaction ft = fm.beginTransaction();
                    ft.replace(R.id.frameLayout, new FragmentNewGame(), "newGame");
                    ft.addToBackStack(null);
                    ft.commit();

Answer 1

替换它：

到此：

 FragmentManager fm = getFragmentManager();

然后您的代码应如下所示：

FragmentManager fm = ((Activity)context).getFragmentManager(); 

或者

FragmentManager fm = ((Activity)context).getFragmentManager(); 
FragmentTransaction ft = fm.beginTransaction();
ft.replace(R.id.frameLayout, new FragmentNewGame(), "newGame");
ft.addToBackStack(null);
ft.commit();