calender not show date from start of month?

calender not show date from start of month?

how to show date from start of month when click on next month or previous
month?? suppose current week start of 18 august when i click on next month
september its again show date form 18 to onward not show form begining of
month see this image http://imgur.com/27YDBWD when i click next is again
form 18 not show form 1st of month these guy said my calender not show
dates form start of month when click next month mDay = 1 but s not help
me.
public class HoyahCalendar extends Activity implements
View.OnClickListener {
public static int mYear;
public static int currentIndex = -1;
public static int mMonth;
public static int mDay;
public static String[][] a = new String[6][7];
String January="January";
String February="February";
String March="March";
String April="April";
String May="May";
String June="June";
String Jully="Jully";
String August="August";
String September="September";
String October="October";
String November="November";
String December="December";
String Monthname;
TextView date_today;
ImageView last_month;
ImageView next_month;
ImageView last_week;
ImageView next_week;
Button e00;
Button e01;
Button e02;
Button e03;
Button e04;
Button e05;
Button e06;
Button button;
String value ;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
getIntent().setAction("Already created");
date_today = (TextView) findViewById(R.id.date_today);
last_month = (ImageView) findViewById(R.id.last_month);
next_month = (ImageView) findViewById(R.id.next_month);
last_week = (ImageView) findViewById(R.id.last_week);
next_week = (ImageView) findViewById(R.id.next_week);
e00 = (Button) findViewById(R.id.e00);
e01 = (Button) findViewById(R.id.e01);
e02 = (Button) findViewById(R.id.e02);
e03 = (Button) findViewById(R.id.e03);
e04 = (Button) findViewById(R.id.e04);
e05 = (Button) findViewById(R.id.e05);
e06 = (Button) findViewById(R.id.e06);
e00.setOnClickListener(this);
e01.setOnClickListener(this);
e02.setOnClickListener(this);
e03.setOnClickListener(this);
e04.setOnClickListener(this);
e05.setOnClickListener(this);
e05.setOnClickListener(this);
button = (Button) findViewById(R.id.button);
Calendar mCalendar = Calendar.getInstance();
mYear = mCalendar.get(Calendar.YEAR);
mMonth = mCalendar.get(Calendar.MONTH) + 1;
mDay = mCalendar.get(Calendar.DAY_OF_MONTH);
value =String.valueOf(mDay);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
AlertDialog alertDialog = new
AlertDialog.Builder(HoyahCalendar.this).create(); //Read Update
alertDialog.setMessage("Date is"+ value);
alertDialog.setButton("Continue..", new
DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
alertDialog.show();
}
});
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() {
if (mMonth ==1)
{
Monthname="January";
}
else
if (mMonth ==2) {
Monthname="February";
}
else
if (mMonth ==3) { Monthname="March";}
else
if (mMonth ==4) { Monthname="April"; }
else
if (mMonth ==5) { Monthname="May";}
else
if (mMonth ==6) { Monthname="June"; }
else
if (mMonth ==7) { Monthname="July";}
else
if (mMonth ==8) { Monthname="August"; }
else
if (mMonth ==9) { Monthname="September";}
else
if (mMonth ==10) { Monthname="October"; }
if (mMonth ==11) { Monthname="November";}
else
if (mMonth ==12) { Monthname="December"; }
date_today.setText( Monthname + " " +mYear);
e00.setText("" + a[0][0]);
if(e00.getText().toString().equals(String.valueOf(mDay)))
{e00.setTextColor(Color.parseColor("#FFBBFF"));
Toast.makeText(this, "Button1 text equals!", Toast.LENGTH_SHORT).show();
}
else
{
e00.setTextColor(Color.parseColor("#000000"));
}
e01.setText("" + a[0][1]);
// if(e01.getText().toString().equalsIgnoreCase (String.valueOf(mDay)))
if(e01.getText().toString().equals(String.valueOf(mDay)))
{
e01.setTextColor(Color.parseColor("#FFBBFF"));
Toast.makeText(this, "Button2 text equals!", Toast.LENGTH_SHORT).show();
}
else
{
e01.setTextColor(Color.parseColor("#000000"));
}
e02.setText("" + a[0][2]);
if(e02.getText().toString().equals(String.valueOf(mDay)))
{e02.setTextColor(Color.parseColor("#FFBBFF"));
Toast.makeText(this, "Button3 text equals!", Toast.LENGTH_SHORT).show();
}
else
{
e02.setTextColor(Color.parseColor("#000000"));
}
e03.setText("" + a[0][3]);
if(e03.getText().toString().equals(String.valueOf(mDay)))
{e03.setTextColor(Color.parseColor("#FFBBFF"));
Toast.makeText(this, "Button4 text equals!", Toast.LENGTH_SHORT).show();
}
else
{
e03.setTextColor(Color.parseColor("#000000"));
}
e04.setText("" + a[0][4]);
if(e04.getText().toString().equals(String.valueOf(mDay)))
{e04.setTextColor(Color.parseColor("#FFBBFF"));
Toast.makeText(this, "Button5 text equals!", Toast.LENGTH_SHORT).show();
}
else
{
e04.setTextColor(Color.parseColor("#000000"));
}
e05.setText("" + a[0][5]);
if(e05.getText().toString().equals(String.valueOf(mDay)))
{e05.setTextColor(Color.parseColor("#FFBBFF"));
Toast.makeText(this, "Button6 text equals!", Toast.LENGTH_SHORT).show();
}
else
{
e05.setTextColor(Color.parseColor("#000000"));
}
e06.setText("" + a[0][6]);
if(e06.getText().toString().equals(String.valueOf(mDay)))
{e06.setTextColor(Color.parseColor("#FFBBFF"));
Toast.makeText(this, "Button7 text equals!", Toast.LENGTH_SHORT).show();
}
else
{
e06.setTextColor(Color.parseColor("#000000"));
}
}
public void onRestart() {
super.onRestart();
Intent intent = getIntent();
finish();
startActivity(intent);
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch(v.getId()) {
case R.id.e00:
// do stuff;
value=e00.getText().toString();
break;
case R.id.e01:
// do stuff;
value=e01.getText().toString();
break;
case R.id.e02:
// do stuff;
value=e02.getText().toString();
break;
case R.id.e03:
// do stuff;
value=e03.getText().toString();
break;
case R.id.e04:
// do stuff;
value=e04.getText().toString();
break;
case R.id.e05:
// do stuff;
value=e05.getText().toString();
break;
case R.id.e06:
// do stuff;
value=e06.getText().toString();
break;
}
}
}
public class ShowCalendar {
int mYear;
int mMonth;
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_dayÿÔµÚÒ»ÌìÐÇÆÚ¼¸
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] = "";
}
}
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@color/lightgray"
android:orientation="vertical" >
<LinearLayout
android:id="@+id/buttonlayout"
android:layout_width="fill_parent"
android:layout_height="60sp"
android:background="@drawable/topbar"
android:gravity="left|top"
android:height="60sp"
android:orientation="horizontal" >
<Button
android:id="@+id/last_week22"
android:layout_width="54sp"
android:layout_height="60sp"
android:background="@drawable/meenu" />
<ImageView
android:id="@+id/last_month"
android:layout_width="20sp"
android:layout_height="fill_parent"
android:layout_gravity="center"
android:layout_marginLeft="10sp"
android:src="@drawable/calendar_left_arrow_selector" >
</ImageView>
<TextView
android:id="@+id/date_today"
android:layout_width="fill_parent"
android:layout_height="60sp"
android:layout_weight="0.6"
android:gravity="center"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#FFFFFF" >
</TextView>
<ImageView
android:id="@+id/next_month"
android:layout_width="20sp"
android:layout_height="fill_parent"
android:layout_gravity="center"
android:layout_marginRight="10sp"
android:src="@drawable/calendar_right_arrow_selector" >
</ImageView>
<Button
android:id="@+id/next_week22"
android:layout_width="54sp"
android:layout_height="60sp"
android:background="@drawable/plus" />
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<ImageView
android:id="@+id/last_week"
android:layout_width="40sp"
android:layout_height="fill_parent"
android:background="@drawable/topbar"
android:src="@drawable/calendar_left_arrow_selector" >
</ImageView>
<TableLayout
android:id="@+id/table_layout"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center_horizontal"
android:stretchColumns="0,1,2,3,4,5,6">
<TableRow
android:paddingBottom="12dp"
android:background="#FEE5AC"
>
<TextView
android:id="@+id/sun"
android:gravity="center"
android:text="@string/sunday"
android:textColor="#000000"/>
<TextView
android:id="@+id/mon"
android:gravity="center"
android:text="@string/monday"
android:textColor="#000000"/>
<TextView
android:id="@+id/tue"
android:gravity="center"
android:text="@string/tuesday"
android:textColor="#000000"/>
<TextView
android:id="@+id/wed"
android:gravity="center"
android:text="@string/wednesday"
android:textColor="#000000"/>
<TextView
android:id="@+id/thur"
android:gravity="center"
android:text="@string/thursday"
android:textColor="#000000"/>
<TextView
android:id="@+id/fri"
android:gravity="center"
android:text="@string/friday"
android:textColor="#000000"/>
<TextView
android:id="@+id/sat"
android:gravity="center"
android:text="@string/saturday"
android:textColor="#000000"/>
</TableRow>
<TableRow
android:paddingBottom="12dp">
<Button
android:id="@+id/e00"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/calendar_button_selector"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#000000" >
</Button>
<Button
android:id="@+id/e01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/calendar_button_selector"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#000000" >
</Button>
<Button
android:id="@+id/e02"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/calendar_button_selector"
android:textAppearance="?android:attr/textAppearanceMedium"
>
</Button>
<Button
android:id="@+id/e03"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/calendar_button_selector"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#000000" >
</Button>
<Button
android:id="@+id/e04"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/calendar_button_selector"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#000000" >
</Button>
<Button
android:id="@+id/e05"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/calendar_button_selector"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#000000" >
</Button>
<Button
android:id="@+id/e06"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/calendar_button_selector"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#000000" >
</Button>
</TableRow>
</TableLayout>
<ImageView
android:id="@+id/next_week"
android:layout_width="40sp"
android:layout_height="fill_parent"
android:background="@drawable/topbar"
android:src="@drawable/calendar_right_arrow_selector" >
</ImageView>
</LinearLayout>
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Click Me"
android:onClick="showAlert"/>
</LinearLayout>