使回收器视图在卡片视图中可单击

Question

  <android.support.v7.widget.CardView xmlns:card_view="http://schemas.android.com/apk/res-auto"
    android:id="@+id/home_subscribe_card"
    android:layout_width="match_parent"
    android:layout_height="72dp"
    android:onClick="@{vm.onGoalPress}"
    card_view:cardCornerRadius="4dp">

<android.support.v7.widget.RecyclerView
                android:id="@+id/feeds_list"
                android:layout_width="200dp"
                android:layout_height="30dp"
                android:layout_marginTop="6dp" />

</CardView>

单击时的卡片视图正在工作。但回收器视图的区域不可单击。如何使其可点击，以便捕获卡片视图的事件。

Answer 1

对于recylerview，您需要设置适配器顺序以使用clickable（如ListView）。您可以参考以下链接：https://developer.android.com/training/material/lists-cards.html。您可以看看这里的另一个问题：为什么RecyclerView没有onItemClickListener（）？以及RecyclerView与ListView有何不同？

 protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.my_activity);
    mRecyclerView = (RecyclerView) findViewById(R.id.my_recycler_view);

    // use this setting to improve performance if you know that changes
    // in content do not change the layout size of the RecyclerView
    mRecyclerView.setHasFixedSize(true);

    // use a linear layout manager
    mLayoutManager = new LinearLayoutManager(this);
    mRecyclerView.setLayoutManager(mLayoutManager);

    // specify an adapter (see also next example)
    mAdapter = new MyAdapter(myDataset);
    mRecyclerView.setAdapter(mAdapter);
}
public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
private String[] mDataset;

// Provide a reference to the views for each data item
// Complex data items may need more than one view per item, and
// you provide access to all the views for a data item in a view holder
public static class ViewHolder extends RecyclerView.ViewHolder {
    // each data item is just a string in this case
    public TextView mTextView;
    public ViewHolder(TextView v) {
        super(v);
        mTextView = v;
    }
}

// Provide a suitable constructor (depends on the kind of dataset)
public MyAdapter(String[] myDataset) {
    mDataset = myDataset;
}

// Create new views (invoked by the layout manager)
@Override
public MyAdapter.ViewHolder onCreateViewHolder(ViewGroup parent,
                                               int viewType) {
    // create a new view
    View v = LayoutInflater.from(parent.getContext())
                           .inflate(R.layout.my_text_view, parent, false);
    // set the view's size, margins, paddings and layout parameters
    ...
    ViewHolder vh = new ViewHolder(v);
    return vh;
}

// Replace the contents of a view (invoked by the layout manager)
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
    // - get element from your dataset at this position
    // - replace the contents of the view with that element
    holder.mTextView.setText(mDataset[position]);

}

// Return the size of your dataset (invoked by the layout manager)
@Override
public int getItemCount() {
    return mDataset.length;
}

}

//类似下面的内容//holder.mtextview.setonClickListener（onClick）；