给RecyclerView的item加OnClickListener

ItemClickSupport.addTo(mRecyclerView).setOnItemClickListener(new ItemClickSupport.OnItemClickListener() {

@Override

public void onItemClicked\(RecyclerView recyclerView, int position, View v\) {

    // do it

}

});

public class ItemClickSupport {

private final RecyclerView mRecyclerView;

private OnItemClickListener mOnItemClickListener;

private OnItemLongClickListener mOnItemLongClickListener;

private View.OnClickListener mOnClickListener = new View.OnClickListener\(\) {

    @Override

    public void onClick\(View v\) {

        if \(mOnItemClickListener != null\) {

            RecyclerView.ViewHolder holder = mRecyclerView.getChildViewHolder\(v\);

            mOnItemClickListener.onItemClicked\(mRecyclerView, holder.getAdapterPosition\(\), v\);

        }

    }

};

private View.OnLongClickListener mOnLongClickListener = new View.OnLongClickListener\(\) {

    @Override

    public boolean onLongClick\(View v\) {

        if \(mOnItemLongClickListener != null\) {

            RecyclerView.ViewHolder holder = mRecyclerView.getChildViewHolder\(v\);

            return mOnItemLongClickListener.onItemLongClicked\(mRecyclerView, holder.getAdapterPosition\(\), v\);

        }

        return false;

    }

};

private RecyclerView.OnChildAttachStateChangeListener mAttachListener

        = new RecyclerView.OnChildAttachStateChangeListener\(\) {

    @Override

    public void onChildViewAttachedToWindow\(View view\) {

        if \(mOnItemClickListener != null\) {

            view.setOnClickListener\(mOnClickListener\);

        }

        if \(mOnItemLongClickListener != null\) {

            view.setOnLongClickListener\(mOnLongClickListener\);

        }

    }



    @Override

    public void onChildViewDetachedFromWindow\(View view\) {



    }

};



private ItemClickSupport\(RecyclerView recyclerView\) {

    mRecyclerView = recyclerView;

    mRecyclerView.setTag\(R.id.item\_click\_support, this\);

    mRecyclerView.addOnChildAttachStateChangeListener\(mAttachListener\);

}



public static ItemClickSupport addTo\(RecyclerView view\) {

    ItemClickSupport support = \(ItemClickSupport\) view.getTag\(R.id.item\_click\_support\);

    if \(support == null\) {

        support = new ItemClickSupport\(view\);

    }

    return support;

}



public static ItemClickSupport removeFrom\(RecyclerView view\) {

    ItemClickSupport support = \(ItemClickSupport\) view.getTag\(R.id.item\_click\_support\);

    if \(support != null\) {

        support.detach\(view\);

    }

    return support;

}



public ItemClickSupport setOnItemClickListener\(OnItemClickListener listener\) {

    mOnItemClickListener = listener;

    return this;

}



public ItemClickSupport setOnItemLongClickListener\(OnItemLongClickListener listener\) {

    mOnItemLongClickListener = listener;

    return this;

}



private void detach\(RecyclerView view\) {

    view.removeOnChildAttachStateChangeListener\(mAttachListener\);

    view.setTag\(R.id.item\_click\_support, null\);

}



public interface OnItemClickListener {



    void onItemClicked\(RecyclerView recyclerView, int position, View v\);

}



public interface OnItemLongClickListener {



    boolean onItemLongClicked\(RecyclerView recyclerView, int position, View v\);

}

}

ref: https://www.littlerobots.nl/blog/Handle-Android-RecyclerView-Clicks/