从内部类访问变量而不是最终的 [英] Access variable from inner class without making it final
本文介绍了从内部类访问变量而不是最终的的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我怎么能让这个工作：
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;
}
}
});
}
它应根据所选日期的工作日设置一些单选按钮的文本与datepicker。
i不能将字符串设置为final，因为它们被赋值为2次。
it should set the text of some radiobuttons depending on the weekday of the chosen date with the datepicker. i cant set the strings final because they get assigned with a value 2 times.
推荐答案
如果您将它们声明为成员变量（在方法之外，最好在 onCreate（）之前为可读性），它们可以通过活动访问，甚至可以访问活动的内部类
If you declare them as member variables (outside of a method and preferably before onCreate() for readibility) they will be accessible throughout the Activity even to inner classes of the Activity
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