android - 找不到 View 的符号变量(Android Studio)

Question

我的带有参数resetB的方法newNum正在按钮onClick上调用，但我也希望它在onCreate中运行。由于某些原因，当我尝试在onCreate上调用newNum(resetB);时，出现了以下错误:找不到符号变量resetB 。我不明白为什么会这样。任何帮助，将不胜感激!

  public void newNum(View resetB){
    TextView numOne = (TextView) findViewById(R.id.numOne);
    TextView numTwo = (TextView) findViewById(R.id.numTwo);
    TextView ans = (TextView) findViewById(R.id.ans);
    Button reset = (Button) resetB;

    Random rand = new Random();
    int  ranOne = rand.nextInt(50) + 1;
    int  ranTwo = rand.nextInt(50) + 1;
    int  ansNum = (ranOne/2) + ranTwo;

    numOne.setText("" + ranOne);
    numTwo.setText("" + ranTwo);
    ans.setText("" + ansNum);
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    newNum(resetB);
}

Answer 1

未在范围onCreate中定义变量resetB。尝试:

View reset = findViewById(R.id.<>); // Put the id of the button with the onClick attribute
newNum( reset );