runOnUiThread(new Runnable() {
    @Override
    public void run() {
        TextView textView1 =findViewById(R.id.ids);
        textView1.setText("商品总数："+id+"件");
        TextView textView2 =findViewById(R.id.weights);
        textView2.setText("商品总重："+weights+"kg");
        TextView textView3 =findViewById(R.id.totals);
        textView3.setText("商品总价："+totals+"元");
        TextView textView4 =findViewById(R.id.pay_money);
        textView4.setText("￥"+totals+"元");
    }
});

runonuithread()线程中即可实现