I just reported it, se http://code.google.com/p/android/issues/detail?id=24684
Jan On Jan 24, 5:33 pm, Jan Skarvall <[email protected]> wrote: > Thanks! > > I forgot to include main.xml. > > You may either remove the lines: > > ((TextView) findViewById(R.id.getdstsavings)) > .setText("TimeZone.getDSTSavings() == " + > String.valueOf(getdstsavings)); > ((TextView) findViewById(R.id.caldstsavings)) > .setText("GregorianCalendar DST_OFFSET == " + > String.valueOf(caldstsavings)); > > or change res/layout/main.xml to look like below: > > <?xml version="1.0" encoding="utf-8"?> > <LinearLayout xmlns:android="http://schemas.android.com/apk/res/ > android" > android:layout_width="fill_parent" > android:layout_height="fill_parent" > android:orientation="vertical" > > <TextView > android:id="@+id/getdstsavings" > android:layout_width="fill_parent" > android:layout_height="wrap_content"/> > <TextView > android:id="@+id/caldstsavings" > android:layout_width="fill_parent" > android:layout_height="wrap_content"/> > </LinearLayout> > > Also, the line: > > cal.set(Calendar.MILLISECOND, 0); > > can be deleted. It is irrelevant for the result. > > Jan > > On Jan 24, 1:13 pm, Mark Murphy <[email protected]> wrote: > > > > > > > > > I know some tricks are played with the time zone database, compared to > > regular Java environments, simply for performance issues. It used to > > be the first time you used something that touched time zones that your > > app would freeze for a full second while the database was loaded. Now, > > they pre-load the time zone database in zygote and share it among all > > VMs. It's possible that there's a bug introduced in that process. > > > I would file an issue on this at b.android.com, with a complete > > project containing your source code that demonstrates the error. > > > On Tue, Jan 24, 2012 at 6:18 AM, Jan Skarvall <[email protected]> > > wrote: > > > Hi all > > > > I have discovered a problem with getting correct DST saving value, > > > . > > > TimeZone.getDSTSavings() normally returns 3600000 (1 hour), but should > > > for timezone ID "Australia/Lord_Howe" return 1800000 (30 minutes). > > > (Seehttp://www.timeanddate.com/worldclock/clockchange.html?n=750) > > > > I believe that GregorianCalendar uses TimeZone.getDSTSavings(), but > > > that is only my guess from looking at the source at > > >http://www.java2s.com/Open-Source/Android/android-core/platform-libco... > > > > Now, if I instead of using TimeZone.getDSTSavings() looks att what > > > GregorianCalendar.get(Calendar.DST_OFFSET) returns, it is infact > > > 1800000 when DST is on, which the following App reveals: > > > > package x.getdstavingsissue; > > > /* > > > * Result on Android 2.2 is: > > > * TimeZone.getDSTSavings() == 3600000 > > > * GregorianCalendar DST_OFFSET == 1800000 > > > */ > > > import java.util.Calendar; > > > import java.util.TimeZone; > > > > import android.app.Activity; > > > import android.os.Bundle; > > > import android.util.Log; > > > import android.widget.TextView; > > > > public class GetDSTSavingsIssueActivity extends Activity { > > > /** Called when the activity is first created. */ > > > @Override > > > public void onCreate(Bundle savedInstanceState) { > > > super.onCreate(savedInstanceState); > > > setContentView(R.layout.main); > > > Calendar cal = > > > Calendar.getInstance(TimeZone.getTimeZone("Australia/Lord_Howe")); > > > int getdstsavings = cal.getTimeZone().getDSTSavings(); > > > cal.set(2012, 1, 1, 0, 0, 0); > > > cal.set(Calendar.MILLISECOND, 0); > > > int caldstsavings = cal.get(Calendar.DST_OFFSET); > > > ((TextView) findViewById(R.id.getdstsavings)) > > > .setText("TimeZone.getDSTSavings() == " + > > > String.valueOf(getdstsavings)); > > > ((TextView) findViewById(R.id.caldstsavings)) > > > .setText("GregorianCalendar DST_OFFSET == " + > > > String.valueOf(caldstsavings)); > > > Log.d("GetDSTSavingsIssue", "TimeZone.getDSTSavings() == " > > > + > > > String.valueOf(getdstsavings)); > > > Log.d("GetDSTSavingsIssue", "GregorianCalendar DST_OFFSET > > > == " + > > > String.valueOf(caldstsavings)); > > > } > > > } > > > > I tried running on 2.2 in emulator and on a device, and also on 3.2 in > > > emulator. Same result. > > > > So, I wonder how this can be. > > > > Regards > > > Jan > > > > -- > > > You received this message because you are subscribed to the Google > > > Groups "Android Developers" group. > > > To post to this group, send email to [email protected] > > > To unsubscribe from this group, send email to > > > [email protected] > > > For more options, visit this group at > > >http://groups.google.com/group/android-developers?hl=en > > > -- > > Mark Murphy (a Commons > > Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy > > > Android Training in DC:http://marakana.com/training/android/ -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
