Hi Pedro, Could you please check if the currentlocation is not NULL. If this is null you will see a null pointer exception when you are trying to get latitude and longitude out of it.
Thanks On Sat, Sep 17, 2011 at 8:30 PM, Pedro Teixeira <[email protected]>wrote: > Hello there, hope you can help me somehow. I've got this class example > which used to work just fine. Basiclly it just writes to the sd card a > log file with some of my device information. > > public class LogToSD > { > static PrintWriter outFile = null; > > private static void initialize() > { > try { > File root = Environment.getExternalStorageDirectory(); > if( root.canWrite() ) > { > Calendar rightNow = Calendar.getInstance(); > long day = rightNow.get( Calendar.DAY_OF_YEAR ); > long hour = rightNow.get( Calendar.HOUR_OF_DAY ); > long minutes = rightNow.get( Calendar.MINUTE ); > long seconds = rightNow.get( Calendar.SECOND ); > > String date = +day + "d_" + hour + "h-" + minutes + > "m-" + seconds + "s"; > > File gpxfile = new File( root, "ThenNnow_" + date + > ".log" ); > FileWriter gpxwriter = new FileWriter( gpxfile ); > outFile = new PrintWriter( gpxwriter ); > outFile.write( "\n\n----- THEN-N-NOW USER TESTING > LOG > -----\n" ); > outFile.write( "----- INITIAL TIME (dd_hh-mm-ss): " > + > date + " -----\n\n" ); > } > } catch (IOException e) { > Log.e( "LogToSD", "Could not write to file: " + > e.getMessage()); > } > } > > public static void write( String text1, String text2 ) > { > if( outFile == null ) > initialize(); > > Calendar rightNow = Calendar.getInstance(); > long minutes = rightNow.get( Calendar.MINUTE ); > long seconds = rightNow.get( Calendar.SECOND ); > long ms = rightNow.get( Calendar.MILLISECOND ); > > String time = minutes + ":" + seconds + "." + ms; > > outFile.write( time + "\t" + text1 + ": " + text2 + "\n" ); > outFile.flush(); > > Log.v( "LogToSD", text1 + " " + text2 ); > } > > public static void shutdown() > { > if( outFile != null ) > outFile.close(); > } > } > > In my main activity this method is called like this: > if (ar.equals("1")){ > LogToSD.write("AR:", "User Location (Latitude:"+ > (currentlocation.getLatitude() * 1E6)+", Longitude:"+ > (currentlocation.getLongitude() * 1E6)+")"); > }else{ > LogToSD.write("Normal:", "User Location > (Latitude:"+ > (currentlocation.getLatitude() * 1E6)+", Longitude:"+ > (currentlocation.getLongitude() * 1E6)+")"); > } > > This was working just fine and now I'm getting a NullPointerException > which I have no idea where it came from but it points to this lines of > code in the main activity which I just pasted before. Can someone > please help? > > 09-17 15:53:03.075: ERROR/AndroidRuntime(921): Uncaught handler: > thread main exiting due to uncaught exception > 09-17 15:53:03.215: ERROR/AndroidRuntime(921): > java.lang.NullPointerException > 09-17 15:53:03.215: ERROR/AndroidRuntime(921): at > com.pedroteixeira.thennnow.LogToSD.write(LogToSD.java:53) > > Thank you very much for your help. > > Pedro > > > -- > 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 -- 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
