java - 将上下文添加到 Toast.MakeText

Question

我想在单击 recyclerview 时打印 toast ，我在 OnClick 方法中的变量“context”中出现错误，我不知道如何修复此错误。

private class MyOnClickListener implements View.OnClickListener{

    @Override
    public void onClick(View view) {


        int itemPosition = recyclerView.getChildLayoutPosition(view);
        String item = items.get(itemPosition);
        Toast.makeText(context, item, Toast.LENGTH_LONG).show();
    }
}

@Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        // get inflater and get view by resource id itemLayout
        View v = LayoutInflater.from(parent.getContext()).inflate(itemLayout, parent, false);
        // return ViewHolder with View
        v.setOnClickListener(mOnClickListener);

        return new ViewHolder(v);
    }


    /**
     * Get the size of items in adapter
     * @return the size of items in adapter
     */
    @Override
    public int getItemCount() {
        return items.size();
    }
    /**
     * Bind View Holder with Items
     * @param holder: the view holder
     * @param position : the current position
     */

Answer 1

修改如下

Toast.makeText(view.getContext(), item, Toast.LENGTH_LONG).show();