[android-developers] Time/CountDownTimer: Wrong millis returned for date/time - HELP PLEASE!!

2011-10-16 Thread Larry/MavrickProductions 
I am writing a program for my kids to count down to Christmas. I have
been playing with android programming for a year, read books, look
online for help, but this one is really got me stumped.

In the java, I use Time (var) .set(mm, dd, ) and long millis =
(var) .toMillis(true) to convert 12/25/2011 to milliseconds from the
epoch. According to 
http://www.esqsoft.com/javascript_examples/date-to-epoch.htm,
12/25/2011 should equal 1324789200. But when I look at the converted
result in the test window (I added code to show the "long" results
before the human readable) it shows 12/25/2011 as -877432832.

My code is below. I'm sure that I'm missing something simple/stupid.
Any help is greatly appreciated!!

Best, -Larry

### CODE BELOW ###


package com.mavrick.countdowntester3;

import java.util.concurrent.TimeUnit;
import android.app.Activity;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.text.format.Time;
import android.widget.TextView;

public class counttime extends Activity {
private TextView mTextField;
private Time TimerSet;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

final TextView mTextField = (TextView)
findViewById(R.id.textView1);

Time TimerSet = new Time();
TimerSet.set(12, 25, 2011);  // set the date to Dec 25, 2011,
12am
TimerSet.normalize(true);
long millis = TimerSet.toMillis(true);

Time TimeNow = new Time();
TimeNow.setToNow();  // set the date to Current Time
TimeNow.normalize(true);
long millis2 = TimeNow.toMillis(true);

long millisset = millis - millis2;   //subtract current from
future to set the time remaining

final int smillis = (int) (millis);  //convert long to integer to
display conversion results
final int smillis2 = (int) (millis2);

new CountDownTimer(millisset, 1000) {
 public void onTick(long millisUntilFinished) {

 // decompose difference into days, hours, minutes and
seconds parts
 int weeks   = (int) ((millisUntilFinished / 1000) /
604800);
 int days= (int) ((millisUntilFinished / 1000) / 
86400);
 int hours   = (int) (((millisUntilFinished / 1000) - 
(days
* 86400)) / 3600);
 int minutes = (int) (((millisUntilFinished / 1000) - 
((days
* 86400) + (hours * 3600))) / 60);
 int seconds = (int) ((millisUntilFinished / 1000) % 
60);
 int millicn = (int) (millisUntilFinished / 1000);

 //write the data: future time, current time, remaining
time, then human readable

 mTextField.setText(smillis + " " + smillis2 + "
 " +
millicn + "Time remaining: " + weeks + " " + days + " " + hours + " "
+ minutes + " " + seconds);
 }

 public void onFinish() {
 mTextField.setText("done!");
 }
  }.start();
}
}

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Re: [android-developers] Time/CountDownTimer: Wrong millis returned for date/time - HELP PLEASE!!

2011-10-16 Thread Christopher Van Kirk 

Possibly a signed/unsigned problem. Try using an unsigned long.


On 10/17/2011 4:55 AM, Larry/MavrickProductions wrote:

I am writing a program for my kids to count down to Christmas. I have
been playing with android programming for a year, read books, look
online for help, but this one is really got me stumped.

In the java, I use Time (var) .set(mm, dd, ) and long millis =
(var) .toMillis(true) to convert 12/25/2011 to milliseconds from the
epoch. According to 
http://www.esqsoft.com/javascript_examples/date-to-epoch.htm,
12/25/2011 should equal 1324789200. But when I look at the converted
result in the test window (I added code to show the "long" results
before the human readable) it shows 12/25/2011 as -877432832.

My code is below. I'm sure that I'm missing something simple/stupid.
Any help is greatly appreciated!!

Best, -Larry

### CODE BELOW ###


package com.mavrick.countdowntester3;

import java.util.concurrent.TimeUnit;
import android.app.Activity;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.text.format.Time;
import android.widget.TextView;

public class counttime extends Activity {
private TextView mTextField;
private Time TimerSet;
 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.main);

 final TextView mTextField = (TextView)
findViewById(R.id.textView1);

 Time TimerSet = new Time();
TimerSet.set(12, 25, 2011);  // set the date to Dec 25, 2011,
12am
TimerSet.normalize(true);
long millis = TimerSet.toMillis(true);

Time TimeNow = new Time();
TimeNow.setToNow();  // set the date to Current Time
TimeNow.normalize(true);
long millis2 = TimeNow.toMillis(true);

long millisset = millis - millis2;   //subtract current from
future to set the time remaining

final int smillis = (int) (millis);  //convert long to integer to
display conversion results
final int smillis2 = (int) (millis2);

 new CountDownTimer(millisset, 1000) {
 public void onTick(long millisUntilFinished) {

 // decompose difference into days, hours, minutes and
seconds parts
 int weeks   = (int) ((millisUntilFinished / 1000) /
604800);
 int days= (int) ((millisUntilFinished / 1000) / 
86400);
 int hours   = (int) (((millisUntilFinished / 1000) - 
(days
* 86400)) / 3600);
 int minutes = (int) (((millisUntilFinished / 1000) - 
((days
* 86400) + (hours * 3600))) / 60);
 int seconds = (int) ((millisUntilFinished / 1000) % 
60);
 int millicn = (int) (millisUntilFinished / 1000);

 //write the data: future time, current time, remaining
time, then human readable

 mTextField.setText(smillis + " " + smillis2 + " 
" +
millicn + "Time remaining: " + weeks + " " + days + " " + hours + " "
+ minutes + " " + seconds);
  }

  public void onFinish() {
  mTextField.setText("done!");
  }
   }.start();
 }
}



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Re: [android-developers] Time/CountDownTimer: Wrong millis returned for date/time - HELP PLEASE!!

2011-10-16 Thread Kostya Vasilyev 

The value from the JavaScript is in seconds.

Converted to milliseconds, it does not fit in a 4-byte integer 
(0x*134*_7396F480_), that's why normally longs (8 bytes) are used for 
time stamps.


You don't really need to convert the values to ints just for the sake of 
a number-to-string conversion.


Either declare smillis, smillis2 as longs and remove the typecast (to 
see milliseconds):


final*long*smillis = millis;
final*long*smillis2 = millis2;


or divide millis and millis2 by 1000 (to see seconds):

final int smillis = (int) (millis*  / 1000L*);
final int smillis2 = (int) (millis2*  / 1000L*);

-- Kostya

17.10.2011 0:55, Larry/MavrickProductions ?:

I am writing a program for my kids to count down to Christmas. I have
been playing with android programming for a year, read books, look
online for help, but this one is really got me stumped.

In the java, I use Time (var) .set(mm, dd, ) and long millis =
(var) .toMillis(true) to convert 12/25/2011 to milliseconds from the
epoch. According to 
http://www.esqsoft.com/javascript_examples/date-to-epoch.htm,
12/25/2011 should equal 1324789200. But when I look at the converted
result in the test window (I added code to show the "long" results
before the human readable) it shows 12/25/2011 as -877432832.

My code is below. I'm sure that I'm missing something simple/stupid.
Any help is greatly appreciated!!

Best, -Larry

### CODE BELOW ###


package com.mavrick.countdowntester3;

import java.util.concurrent.TimeUnit;
import android.app.Activity;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.text.format.Time;
import android.widget.TextView;

public class counttime extends Activity {
private TextView mTextField;
private Time TimerSet;
 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.main);

 final TextView mTextField = (TextView)
findViewById(R.id.textView1);

 Time TimerSet = new Time();
TimerSet.set(12, 25, 2011);  // set the date to Dec 25, 2011,
12am
TimerSet.normalize(true);
long millis = TimerSet.toMillis(true);

Time TimeNow = new Time();
TimeNow.setToNow();  // set the date to Current Time
TimeNow.normalize(true);
long millis2 = TimeNow.toMillis(true);

long millisset = millis - millis2;   //subtract current from
future to set the time remaining

final int smillis = (int) (millis);  //convert long to integer to
display conversion results
final int smillis2 = (int) (millis2);

 new CountDownTimer(millisset, 1000) {
 public void onTick(long millisUntilFinished) {

 // decompose difference into days, hours, minutes and
seconds parts
 int weeks   = (int) ((millisUntilFinished / 1000) /
604800);
 int days= (int) ((millisUntilFinished / 1000) / 
86400);
 int hours   = (int) (((millisUntilFinished / 1000) - 
(days
* 86400)) / 3600);
 int minutes = (int) (((millisUntilFinished / 1000) - 
((days
* 86400) + (hours * 3600))) / 60);
 int seconds = (int) ((millisUntilFinished / 1000) % 
60);
 int millicn = (int) (millisUntilFinished / 1000);

 //write the data: future time, current time, remaining
time, then human readable

 mTextField.setText(smillis + " " + smillis2 + " 
" +
millicn + "Time remaining: " + weeks + " " + days + " " + hours + " "
+ minutes + " " + seconds);
  }

  public void onFinish() {
  mTextField.setText("done!");
  }
   }.start();
 }
}



--
Kostya Vasilyev

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