0

我怎样才能让它工作：

public void onStart()
        {
            super.onStart();

            int dayN = 0;
            int i = 0;
            String day = null;
            String addFach;

            String mo1 = null;
            String mo2 = null;
            String mo3 = null;
            String mo4 = null;
            String mo5 = null;
            String mo6 = null;
            String mo7 = null;
            String mo8 = null;
            String mo9 = null;
            String mo10 = null;
            String mo11 = null;

            String di1 = null;
            String di2 = null;
            String di3 = null;
            String di4 = null;
            String di5 = null;
            String di6 = null;
            String di7 = null;
            String di8 = null;
            String di9 = null;
            String di10 = null;
            String di11 = null;

            String mi1 = null;
            String mi2 = null;
            String mi3 = null;
            String mi4 = null;
            String mi5 = null;
            String mi6 = null;
            String mi7 = null;
            String mi8 = null;
            String mi9 = null;
            String mi10 = null;
            String mi11 = null;

            String do1 = null;
            String do2 = null;
            String do3 = null;
            String do4 = null;
            String do5 = null;
            String do6 = null;
            String do7 = null;
            String do8 = null;
            String do9 = null;
            String do10 = null;
            String do11 = null;

            String fr1 = null;
            String fr2 = null;
            String fr3 = null;
            String fr4 = null;
            String fr5 = null;
            String fr6 = null;
            String fr7 = null;
            String fr8 = null;
            String fr9 = null;
            String fr10 = null;
            String fr11 = null;

            while (dayN <= 4)
            {
                if (dayN == 0)
                {
                    day = "Montag";
                } else if (dayN == 1)
                {
                    day = "Dienstag";
                } else if (dayN == 2)
                {
                    day = "Mittwoch";
                } else if (dayN == 3)
                {
                    day = "Donnerstag";
                } else if (dayN == 4)
                {
                    day = "Freitag";
                }

                while (i <= 10)
                {

                    BufferedReader buf;
                    try
                    {
                        buf = new BufferedReader(new FileReader("/sdcard/" + i + day + "fach.txt"));
                        addFach = buf.readLine();

                        if (day == "Montag")
                        {
                            if (i == 0) mo1 = addFach;
                            else if (i == 1) mo2 = addFach;
                            else if (i == 2) mo3 = addFach;
                            else if (i == 3) mo4 = addFach;
                            else if (i == 4) mo5 = addFach;
                            else if (i == 5) mo6 = addFach;
                            else if (i == 6) mo7 = addFach;
                            else if (i == 7) mo8 = addFach;
                            else if (i == 8) mo9 = addFach;
                            else if (i == 9) mo10 = addFach;
                            else if (i == 10) mo11 = addFach;
                        } else if (day == "Dienstag")
                        {
                            if (i == 0) di1 = addFach;
                            else if (i == 1) di2 = addFach;
                            else if (i == 2) di3 = addFach;
                            else if (i == 3) di4 = addFach;
                            else if (i == 4) di5 = addFach;
                            else if (i == 5) di6 = addFach;
                            else if (i == 6) di7 = addFach;
                            else if (i == 7) di8 = addFach;
                            else if (i == 8) di9 = addFach;
                            else if (i == 9) di10 = addFach;
                            else if (i == 10) di11 = addFach;
                        } else if (day == "Mittwoch")
                        {
                            if (i == 0) mi1 = addFach;
                            else if (i == 1) mi2 = addFach;
                            else if (i == 2) mi3 = addFach;
                            else if (i == 3) mi4 = addFach;
                            else if (i == 4) mi5 = addFach;
                            else if (i == 5) mi6 = addFach;
                            else if (i == 6) mi7 = addFach;
                            else if (i == 7) mi8 = addFach;
                            else if (i == 8) mi9 = addFach;
                            else if (i == 9) mi10 = addFach;
                            else if (i == 10) mi11 = addFach;
                        } else if (day == "Donnerstag")
                        {
                            if (i == 0) do1 = addFach;
                            else if (i == 1) do2 = addFach;
                            else if (i == 2) do3 = addFach;
                            else if (i == 3) do4 = addFach;
                            else if (i == 4) do5 = addFach;
                            else if (i == 5) do6 = addFach;
                            else if (i == 6) do7 = addFach;
                            else if (i == 7) do8 = addFach;
                            else if (i == 8) do9 = addFach;
                            else if (i == 9) do10 = addFach;
                            else if (i == 10) do11 = addFach;
                        } else if (day == "Freitag")
                        {
                            if (i == 0) fr1 = addFach;
                            else if (i == 1) fr2 = addFach;
                            else if (i == 2) fr3 = addFach;
                            else if (i == 3) fr4 = addFach;
                            else if (i == 4) fr5 = addFach;
                            else if (i == 5) fr6 = addFach;
                            else if (i == 6) fr7 = addFach;
                            else if (i == 7) fr8 = addFach;
                            else if (i == 8) fr9 = addFach;
                            else if (i == 9) fr10 = addFach;
                            else if (i == 10) fr11 = addFach;
                        }
                    }
                    catch (Exception e)
                    {

                    }

                    i++;
                }

                i = 0;
                dayN++;
            }

            RadioButton rB1 = (RadioButton) getView().findViewById(R.id.stunde1);
            RadioButton rB2 = (RadioButton) getView().findViewById(R.id.stunde2);
            RadioButton rB3 = (RadioButton) getView().findViewById(R.id.stunde3);
            RadioButton rB4 = (RadioButton) getView().findViewById(R.id.stunde4);
            RadioButton rB5 = (RadioButton) getView().findViewById(R.id.stunde5);
            RadioButton rB6 = (RadioButton) getView().findViewById(R.id.stunde6);
            RadioButton rB7 = (RadioButton) getView().findViewById(R.id.stunde7);
            RadioButton rB8 = (RadioButton) getView().findViewById(R.id.stunde8);
            RadioButton rB9 = (RadioButton) getView().findViewById(R.id.stunde9);
            RadioButton rB10 = (RadioButton) getView().findViewById(R.id.stunde10);
            RadioButton rB11 = (RadioButton) getView().findViewById(R.id.stunde11);
            DatePicker dP = (DatePicker) getView().findViewById(R.id.datePicker);

            dP.init(dP.getYear(), dP.getMonth(), dP.getDayOfMonth(), new DatePicker.OnDateChangedListener()
            {
                public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth)
                {
                    Calendar cal = Calendar.getInstance();
                    cal.set(year, monthOfYear, dayOfMonth);
                    int dayOfWeek = cal.get(Calendar.DAY_OF_WEEK);

                    switch(dayOfWeek)
                    {
                        case Calendar.MONDAY:
                            rB1.setText(mo1);
                            break;
                    }

                }
            });
        }

它应该根据日期选择器所选日期的工作日设置一些单选按钮的文本。我无法将字符串设置为 final，因为它们被赋值了 2 次。

4

3 回答 3

4

不，不可能。

JLS #第8章

任何使用但未在内部类中声明的局部变量、形参或异常参数都必须声明为 final。

任何使用但未在内部类中声明的局部变量必须在内部类的主体之前明确分配（第 16 节）。

作为旁注：使用Collections而不是声明那么多字段。

以下是如何从文档中访问它们的示例：

class WithDeepNesting {
    boolean toBe;
    WithDeepNesting(boolean b) { toBe = b; }

    class Nested {
        boolean theQuestion;
        class DeeplyNested {
            DeeplyNested(){
                theQuestion = toBe || !toBe;  // here you are able to access now.
            }
        }
    }
}
于 2013-08-26T13:23:49.353 回答
3

如果您将它们声明为成员变量（在方法之外，最好是在onCreate()可读性之前），它们将在整个Activity内部类中都可以访问Activity

于 2013-08-26T13:23:59.263 回答
1

通常的做法是将它们转换为成员变量。但是，在您的情况下，您需要重新考虑您的设计。

你有太多的代码重复。您应该重构它以使用集合，此时内部类问题会自行解决。

于 2013-08-26T13:25:16.870 回答