Firebase RecyclerView ClickListener不从.onStart（）调用 [英] Firebase RecyclerView ClickListener Not Being Called from .onStart()

问题描述

我跟着这里。我基本上试图在我的 RecyclerView 中设置一个点击侦听器。当我点击 RecyclerView 中的一个项目时，我没有得到任何回应。我已经登录了，点击时没有收到日志。因此，我知道 .onClick（）方法不会触发。我在 .onStart（）中初始化适配器，如下所示：

  @Override 
 public void onStart（）{
 super.onStart（）; 
 
 mFireAdapter = new FirebaseRecyclerAdapter< Poll，PollHolder>（Poll.class，R.layout.latest_item，PollHolder.class，mBaseRef.child（Polls））{
 @Override 
 protected void populateViewHolder（PollHolder viewHolder，Poll model，final int position）{
 viewHolder.mPollQuestion.setText（model.getQuestion（））; 
 Picasso.with（getActivity（）。getApplicationContext（））
 .load（model.getImage_URL（））
 .fit（）$ b $ .into（viewHolder.mPollImage）; 
 viewHolder.mView.setOnClickListener（new View.OnClickListener（）{
 @Override 
 public void onClick（View view）{
 Log.v（TAG，ONCLICKED ）; 
 Intent toPoll = new Intent（getActivity（），PollHostActivity.class）; 
 toPoll.putExtra（POLL_ID，mFireAdapter.getRef（position）.getKey（））; 
 startActivity （toPoll）; 
 
} 
}）; 
 Log.v（TAG，mFireAdapter.getRef（position）.getKey（））; 
 Log.v（TAG，String.valueOf（position））; 
 Log.v（TAG，model.getQuestion（））; 
 Log.v（TAG，model.getImage_URL（））; 
} 
}; 
 
 mRecyclerview.setAdapter（mFireAdapter）; 
 
 mFireAdapter.registerAdapterDataObserver（new RecyclerView.AdapterDataObserver（）{
 @Override $ b $ public void onItemRangeInserted（int positionStart，int itemCount）{
 super.onItemRangeInserted（positionStart， itemCount）; 
 int pollCount = mFireAdapter.getItemCount（）; 
 int lastVisiblePosition = mLayoutManager.findLastCompletelyVisibleItemPosition（）; 
 
 //如果回收者视图最初被加载，或者用户位于列表的底部，滚动
 //到列表的底部显示新添加的消息。
 if（lastVisiblePosition == -1 || 
（positionStart> = （pollCount  -  1）&&& lastVisiblePosition ==（positionStart  -  1）））{
 mRecyclerview.scrollToPosition（positionStart）; 
} 
} 
}）; 
 
 
 
 $ b 
这里是我创建我的 ViewHolder（）：
 
 $ p $  public static class PollHolder extends RecyclerView.ViewHolder {
 
 TextView mPollQuestion ; 
 ImageView mPollImage; 
查看mView; 
 
 public PollHolder（查看itemView）{
 super（itemView）; 
 
 mPollQuestion =（TextView）itemView.findViewById（R.id.latest_item_question）; 
 mPollImage =（ImageView）itemView.findViewById（R.id.pollThumbNailImage）; 
 this.mView = itemView; 
 
 
 
 $ div class =h2_lin>解决方案

Turn这一行是搞砸了所有东西，并防止 RecyclerView 视图被点击：



  android：clickable =true
  




I followed the post here. I am essentially trying to set up a click listener in my RecyclerView. I am getting no response when I click an item in the RecyclerView. I have logged it and I'm not getting a call to the log when I click. Therefore, I know the .onClick() method is not firing. I initialize the adapter in .onStart(), as seen below:

@Override
public void onStart() {
    super.onStart();

    mFireAdapter = new FirebaseRecyclerAdapter<Poll, PollHolder>(Poll.class, R.layout.latest_item, PollHolder.class, mBaseRef.child("Polls")) {
        @Override
        protected void populateViewHolder(PollHolder viewHolder, Poll model, final int position) {
            viewHolder.mPollQuestion.setText(model.getQuestion());
            Picasso.with(getActivity().getApplicationContext())
                    .load(model.getImage_URL())
                    .fit()
                    .into(viewHolder.mPollImage);
            viewHolder.mView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    Log.v("TAG","ONCLICKED");
                    Intent toPoll = new Intent(getActivity(), PollHostActivity.class);
                    toPoll.putExtra("POLL_ID", mFireAdapter.getRef(position).getKey());
                    startActivity(toPoll);

                }
            });
            Log.v("TAG", mFireAdapter.getRef(position).getKey());
            Log.v("TAG", String.valueOf(position));
            Log.v("TAG", model.getQuestion());
            Log.v("TAG", model.getImage_URL());
        }
    };

    mRecyclerview.setAdapter(mFireAdapter);

    mFireAdapter.registerAdapterDataObserver(new RecyclerView.AdapterDataObserver() {
        @Override
        public void onItemRangeInserted(int positionStart, int itemCount) {
            super.onItemRangeInserted(positionStart, itemCount);
            int pollCount = mFireAdapter.getItemCount();
            int lastVisiblePosition = mLayoutManager.findLastCompletelyVisibleItemPosition();

            // If the recycler view is initially being loaded or the user is at the bottom of the list, scroll
            // to the bottom of the list to show the newly added message.
            if (lastVisiblePosition == -1 ||
                    (positionStart >= (pollCount - 1) && lastVisiblePosition == (positionStart - 1))) {
                mRecyclerview.scrollToPosition(positionStart);
            }
        }
    });
}

Here is where I create my ViewHolder():

 public static class PollHolder extends RecyclerView.ViewHolder {

    TextView mPollQuestion;
    ImageView mPollImage;
    View mView;

    public PollHolder(View itemView) {
        super(itemView);

        mPollQuestion = (TextView) itemView.findViewById(R.id.latest_item_question);
        mPollImage = (ImageView) itemView.findViewById(R.id.pollThumbNailImage);
        this.mView = itemView;
    }
}

解决方案

Turns out this one line was screwing everything up and preventing the RecyclerView views from being clickable:

android:clickable="true"

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