如何将整数输出到 EditText 视图？

Question

我有一个 EditText 作为输入。我也在尝试将它用于输出。我尝试了以下方法：

FoodIncomeCounter.setText(TotalFood.getText().toString());

FoodIncomeCounter = Integer.parseInt(TotalFood.getText());

String FoodIncomeCounter = String.valueOf(TotalFood);

但没有任何效果。对于第一个和第二个选项，“getText()”无法解析。我可以输出到 EditText 视图，还是需要制作一个单独的 TextView 并输出到它？希望这一切对你有意义。我的目标是能够使用 FoodCampX 和 FoodUpgradeX 变量来计算收入并将其输出到 FoodIncomeCounter variable/EditText 视图（目前您可以手动输入）。 FoodIncomeCounter 是一个EditText 视图，FoodCampX 和FoodUpgradeX 以及FoodIncome 是整数，TotalFood 是整数。谢谢你教我。

代码如下：

//to get from user input and into variable form
  
    FoodIncomeCounter = (EditText) findViewById(R.id.FoodIncomeCounter);
    IncomeSubmitButton = (Button) findViewById(R.id.IncomeSubmitButton);

    FoodCamp1Counter = (EditText) findViewById(R.id.FoodCamp1Counter);
    FoodCamp2Counter = (EditText) findViewById(R.id.FoodCamp2Counter);
    FoodCamp3Counter = (EditText) findViewById(R.id.FoodCamp3Counter);
    FoodUpgrade1Counter = (EditText) findViewById(R.id.FoodUpgrade1Counter);
    FoodUpgrade2Counter = (EditText) findViewById(R.id.FoodUpgrade2Counter);
    FoodUpgrade3Counter = (EditText) findViewById(R.id.FoodUpgrade3Counter);
    FoodCampSubmitButton = (Button) findViewById(R.id.FoodCampSubmitButton);

}

    //Buttons
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.IncomeSubmitButton:
                //reset to value
                FoodIncomeCounter.setText("");

                //receive the inputted values
                FoodIncome = Integer.parseInt(FoodIncomeCounter.getText().toString());
                break;
            case R.id.FoodCampSubmitButton:
                //reset to value
                FoodCamp1Counter.setText("");
                FoodCamp2Counter.setText("");
                FoodCamp3Counter.setText("");
                FoodUpgrade1Counter.setText("");
                FoodUpgrade2Counter.setText("");
                FoodUpgrade3Counter.setText("");

                //receive the inputted values
                FoodCamp1 = Integer.parseInt(FoodCamp1Counter.getText().toString());
                FoodCamp2 = Integer.parseInt(FoodCamp2Counter.getText().toString());
                FoodCamp3 = Integer.parseInt(FoodCamp3Counter.getText().toString());
                FoodUpgrade1 = Integer.parseInt(FoodUpgrade1Counter.getText().toString());
                FoodUpgrade2 = Integer.parseInt(FoodUpgrade2Counter.getText().toString());
                FoodUpgrade3 = Integer.parseInt(FoodUpgrade3Counter.getText().toString());

                //get food income and show
                TotalFood = FoodCamp1 + (FoodCamp2 * 2) + (FoodCamp3 * 3) + (FoodUpgrade1 * 2) + (FoodUpgrade2 * 4) + (FoodUpgrade3 * 6);

                //These 3 options are what iv tried and do not work
                FoodIncomeCounter.setText(TotalFood.getText().toString());
                FoodIncomeCounter = Integer.parseInt(TotalFood.getText());
                String FoodIncomeCounter = String.valueOf(TotalFood);
                //------------------------------------------------------
                break;
            default:
                break;
        }
    }

Answer 1

根据对您的字段类型的一些有根据的猜测，以下应该有效，因为 TotalFood 可能是一个数字：

FoodIncomeCounter.setText(String.valueOf(TotalFood));

getText() 是 EditText 上的一种方法，但它不适用于数字。

Answer 2

改变

FoodIncomeCounter.setText(TotalFood.getText().toString());

至

FoodIncomeCounter.setText(String.valueOf(TotalFood));

因为 getText() 是针对 EditText、TextView 等组件而非数据类型的方法。

如何将整数输出到 EditText 视图？

How do I output an integer to an EditText view?

java

android-edittext

output

android-studio