final TextView count_shopCar=viewHolder.textView_count_shopCar;
viewHolder.textView_jia.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
String s=count_shopCar.getText().toString();
int count=Integer.parseInt(s)+1;
count_shopCar.setText(count+"");
}
}) ;原文：http://www.cnblogs.com/Jingerxin/p/5135487.html