如何将RecyclerViewAdapter之间的数据传递到具有onClick的详细信息活动

Question

我试图将此RecyclerAdapter之间的数据传递给DetailsActivity，此时用户单击每个项目，获取项目position，然后例如获取标题recyclerView并显示到MainRecyclerDetailsTextView，这里是我的尝试：

public class MyRecyclerAdapter extends RecyclerView.Adapter<MyRecyclerAdapter.FeedListRowHolder> { 

    private List<FeedItem> feedItemList; 
    private Context mContext; 

    public MyRecyclerAdapter(Context context, List<FeedItem> feedItemList) { 
     this.feedItemList = feedItemList; 
     this.mContext = context; 
    } 

    @Override 
    public FeedListRowHolder onCreateViewHolder(ViewGroup viewGroup, int i) { 
     View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.list_row, null); 
     return new FeedListRowHolder(v); 
    } 

    @Override 
    public void onBindViewHolder(FeedListRowHolder feedListRowHolder, int i) { 

     FeedItem feedItem = feedItemList.get(i); 
     Picasso.with(mContext).load(feedItem.getThumbnail()) 
       .error(R.drawable.placeholder) 
       .placeholder(R.drawable.placeholder) 
       .into(feedListRowHolder.thumbnail); 
     feedListRowHolder.title.setText(Html.fromHtml(feedItem.getTitle())); 
     feedListRowHolder.date.setText(Html.fromHtml(feedItem.getDate())); 
     feedListRowHolder.tags.setText(Html.fromHtml(feedItem.getTags())); 
     feedListRowHolder.thumbnail.setOnClickListener(clickListener); 
     feedListRowHolder.title.setOnClickListener(clickListener); 
     feedListRowHolder.date.setOnClickListener(clickListener); 
     feedListRowHolder.tags.setOnClickListener(clickListener); 
     feedListRowHolder.thumbnail.setTag(feedListRowHolder); 
     feedListRowHolder.title.setTag(feedListRowHolder); 
     feedListRowHolder.date.setTag(feedListRowHolder); 
     feedListRowHolder.tags.setTag(feedListRowHolder); 
    } 

    @Override 
    public int getItemCount() { 
     return (null != feedItemList ? feedItemList.size() : 0); 
    } 

    View.OnClickListener clickListener = new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      FeedListRowHolder holder = (FeedListRowHolder) view.getTag(); 
      int position = holder.getAdapterPosition(); 
      FeedItem feedItem = feedItemList.get(position); 
      Toast.makeText(mContext, feedItem.getTitle(), Toast.LENGTH_SHORT).show(); 

      Intent i = new Intent(mContext, MainRecyclerDetails.class); 

      String getrec = feedItem.getTitle(); 
      Bundle bundle = new Bundle(); 
      bundle.putString("title", getrec); 
      i.putExtras(bundle); 
      startActivity(i); 


     } 
    }; 


    class FeedListRowHolder extends RecyclerView.ViewHolder { 

     protected ImageView thumbnail; 
     protected TextView title; 
     protected TextView date; 
     protected TextView tags; 

     public FeedListRowHolder(View view) { 
      super(view); 
      this.thumbnail = (ImageView) view.findViewById(R.id.thumbnail); 
      this.title = (TextView) view.findViewById(R.id.title); 
      this.date = (TextView) view.findViewById(R.id.date); 
      this.tags = (TextView) view.findViewById(R.id.tagsItems); 
     } 
    } 

} 

得到它在DetailsActivity：

Bundle bundle = getIntent().getExtras(); 
     String title = bundle.getString("title"); 

但是，它不工作。

我在做什么错？

干杯！

Answer 1

您可以在MainRecyclerDetails活动

protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    Bundle extra = getIntent().getExtras(); 
    String title = extra.getString("title"); 
}