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这是我的下面的代码，当代码运行显示本周时，它第一次完美运行看到这个图像完美显示今天是 7 月 28 日星期日，完美显示看到这个http://imgur.com/IVY4tpF 当我移动看到前一周看到 tis当我关闭应用程序并重新开始时， img http://imgur.com/Rvf8QYp显示完美，再次显示上周屏幕而不是当前周屏幕。这意味着它保持最后状态我每次应用程序启动时如何刷新日历？下面是我的完整代码

    public class HoyahCalendar extends Activity {
private static int mYear;
public static int currentIndex = -1;
private static int mMonth;
public static int mDay;
public static String[][] a = new String[6][7];
private TextView date_today;
ImageButton last_month;
ImageButton next_month;

private ImageButton last_week;
private ImageButton next_week;

private TextView e00;
private TextView e01;
private TextView e02;
private TextView e03;
private TextView e04;
private TextView e05;
private TextView e06;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    date_today = (TextView) findViewById(R.id.date_today);
    last_month = (ImageButton) findViewById(R.id.last_month);
    next_month = (ImageButton) findViewById(R.id.next_month);
    last_week = (ImageButton) findViewById(R.id.last_week);
    next_week = (ImageButton) findViewById(R.id.next_week);

    e00 = (TextView) findViewById(R.id.e00);
    e01 = (TextView) findViewById(R.id.e01);
    e02 = (TextView) findViewById(R.id.e02);
    e03 = (TextView) findViewById(R.id.e03);
    e04 = (TextView) findViewById(R.id.e04);
    e05 = (TextView) findViewById(R.id.e05);
    e06 = (TextView) findViewById(R.id.e06);

    Calendar mCalendar = Calendar.getInstance();
    mYear = mCalendar.get(Calendar.YEAR);
    mMonth = mCalendar.get(Calendar.MONTH) + 1;
    mDay = mCalendar.get(Calendar.DAY_OF_MONTH);

    // / setListeners();

    last_month.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {

            if (mMonth == 1) {
                mYear -= 1;
                mMonth = 12;
                new ShowCalendar(mYear, mMonth);
                showOnScreen();
            } else {
                mMonth -= 1;
                new ShowCalendar(mYear, mMonth);
                showOnScreen();
            }

        }
    });

    next_month.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {

            if (mMonth == 12) {
                mYear += 1;
                mMonth = 1;
                new ShowCalendar(mYear, mMonth);
                showOnScreen();
            } else {
                mMonth += 1;
                new ShowCalendar(mYear, mMonth);
                showOnScreen();
            }

        }
    });

    last_week.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            if (mMonth == 1) {
                mYear -= 1;
                mMonth = 12;
                new ShowCalendar(mYear, mMonth, mDay, "last");
                showOnScreen();
            } else {
                // mMonth -= 1;
                new ShowCalendar(mYear, mMonth, mDay, "last");
                showOnScreen();
            }
        }
    });

    next_week.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {

            if (mMonth == 12) {
                mYear += 1;
                mMonth = 1;
                new ShowCalendar(mYear, mMonth, mDay, "next");
                showOnScreen();
            } else {
                if (HoyahCalendar.currentIndex == 4) {
                    HoyahCalendar.currentIndex = 4;
                    // mMonth += 1;
                }

                new ShowCalendar(mYear, mMonth, mDay, "next");
                showOnScreen();
            }

        }
    });

    new ShowCalendar(mYear, mMonth);
    showOnScreen();

}

public void showOnScreen() {

    date_today.setText(mYear + "Years" + mMonth + "Month");
    e00.setText("" + a[0][0]);
    e01.setText("" + a[0][1]);
    e02.setText("" + a[0][2]);
    e03.setText("" + a[0][3]);
    e04.setText("" + a[0][4]);
    e05.setText("" + a[0][5]);
    e06.setText("" + a[0][6]);

}
 }





                 public class ShowCalendar {
private int mYear;
private int mMonth;
private int mDay;
public ShowCalendar(int mYear, int mMonth){
    this.mYear = mYear;
    this.mMonth = mMonth;

    calculateMonthFirstday();
}


public int getmDay() {
    return mDay;
}


public void setmDay(int mDay) {
    this.mDay = mDay;
}


public ShowCalendar(int mYear, int mMonth, int mDay, String time){
    this.mYear = mYear;
    this.mMonth = mMonth;
    if (time == "next"){
        HoyahCalendar.currentIndex++;
        if (HoyahCalendar.currentIndex == 5){
            HoyahCalendar.currentIndex--;
        }
        this.mDay = mDay + 7;
    } else if (time == "last"){
        HoyahCalendar.currentIndex--;
        if (HoyahCalendar.currentIndex == -1){
            HoyahCalendar.currentIndex++;
        }
        this.mDay = mDay - 7;
    }
    calculateMonthFirstday();
}

public void calculateMonthFirstday(){
    int month, first_day=0;
    if((mYear%4==0 && mYear%100!=0)||(mYear%400==0))
        month=1;
    else
        month=0;

    int y, y12, c, c12, m, d;
    y = mYear%100;
    y12 = (mYear-1)%100; //only for January and February
    c = mYear/100;
    c12 = (mYear-1)/100;
    m = mMonth;
    d = 1;

    switch(mMonth){
    case 1: {first_day = y12 + y12/4 +c12/4 - 2*c12 + 26*(13 + 1)/10 + d - 1;break;}
    case 2: {first_day = y12 + y12/4 +c12/4 - 2*c12 + 26*(14 + 1)/10 + d - 1;break;}
    case 4: {first_day = y + y/4 +c/4 - 2*c + 26*(m + 1)/10 + d - 1;break;}
    case 5: {first_day = y + y/4 +c/4 - 2*c + 26*(m + 1)/10 + d - 1;break;}
    case 6: {first_day = y + y/4 +c/4 - 2*c + 26*(m + 1)/10 + d - 1;break;}
    case 7: {first_day = y + y/4 +c/4 - 2*c + 26*(m + 1)/10 + d - 1;break;}
    case 8: {first_day = y + y/4 +c/4 - 2*c + 26*(m + 1)/10 + d - 1;break;}
    case 9: {first_day = y + y/4 +c/4 - 2*c + 26*(m + 1)/10 + d - 1;break;}
    case 10: {first_day = y + y/4 +c/4 - 2*c + 26*(m + 1)/10 + d - 1;break;}
    case 11: {first_day = y + y/4 +c/4 - 2*c + 26*(m + 1)/10 + d - 1;break;}
    case 12: {first_day = y + y/4 +c/4 - 2*c + 26*(m + 1)/10 + d - 1;break;}
    }
    if(first_day<0)
        first_day = 7 - (Math.abs(first_day))%7;//first_day每月第一天星期几
    else
        first_day = first_day%7;

    switch(mMonth){
        case 1: {CalculateCalendar(1,first_day,31);break;}
        case 2: {CalculateCalendar(2,first_day,28+month);break;}
        case 3: {CalculateCalendar(3,first_day,31);break;}
        case 4: {CalculateCalendar(4,first_day,30);break;}
        case 5: {CalculateCalendar(5,first_day,31);break;}
        case 6: {CalculateCalendar(6,first_day,30);break;}
        case 7: {CalculateCalendar(7,first_day,31);break;}
        case 8: {CalculateCalendar(8,first_day,31);break;}
        case 9: {CalculateCalendar(9,first_day,30);break;}
        case 10:{CalculateCalendar(10,first_day,31);break;}
        case 11:{CalculateCalendar(11,first_day,30);break;}
        case 12:{CalculateCalendar(12,first_day,31);break;}
    }
}

public void CalculateCalendar(int month_no, int week_no, int month_days){

    int i, s, targetRow = 0;
    int currentDay;
    if (this.mDay == 0){
        currentDay= HoyahCalendar.mDay;     
    }else {
        currentDay = this.mDay;
    }
    //String[][] a = new String[6][7];
    for (i=0;i<week_no;i++)
        HoyahCalendar.a[i/7][i%7] = "";

    for(i=week_no; i<week_no + month_days; i++){
        s = i - week_no + 1;
        HoyahCalendar.a[i/7][i%7] = String.valueOf(s);
        if (s == currentDay && HoyahCalendar.currentIndex == -1){
            HoyahCalendar.currentIndex = i/7;
        }
    } 
    for (i=0; i<7;i++){
        if (HoyahCalendar.a[HoyahCalendar.currentIndex][i] == null){
            HoyahCalendar.a[0][i] = "";
        }else{
            HoyahCalendar.a[0][i] =    
  HoyahCalendar.a[HoyahCalendar.currentIndex][i];
        }

    }
    for(i=week_no+month_days; i<42; i++)


        HoyahCalendar.a[i/7][i%7] = "";
}
   }
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