修改textview的变量

Question

int triesno=5;
final TextView tries= (TextView) findViewById(R.id.tries);
tries.setText("you have "+triesno.toString()+" tries left");

我想制作一款游戏，当用户发送错误输入时，尝试次数减少。上面的代码打印了初始编号，但我想只修改变量而不是更新如下：

triesno--;
tries.setText("you have "+triesno.toString()+" tries left");

我该怎么做？

Answer 1

你确定你的问题吗？

final TextView tvTries = (TextView) findViewById(R.id.tries);
int tries = Integer.parseInt(tvTries.getText()); // Get current number of time that you can try to.
tvTries .setText("you have "+ --tries + " tries left"); // -1 and set to textview

Answer 2

    int tries = 5;
    final TextView triesTv = (TextView) findViewById(R.id.tries);
    tries = tries - 1;
    String triesStr = String.format("you have: %d tries left", tries);
    triesTv.setText(triesStr);