问儿童内部带按钮的ExpandableListView

EN

public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
        View v = super.getChildView(groupPosition, childPosition, isLastChild, convertView, parent);
        v.inflate(getApplicationContext(),R.layout.productsexpchilditem, null);

        Button button = (Button)v.findViewById(R.id.button1);
        String name=((TextView)parent.findViewById(R.id.txt_exp_products_name_item)).getText().toString();
        button.setTag(name); 

        button.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(ProductsActivityExp.this, "TOAST "+v.getTag(), Toast.LENGTH_SHORT).show();
            }
        });      
        return v;
    }