Understanding, Timertask

Similar Questions

• TimerTasks battery drain!

  Hi gurus

  I am developing a project that has 2 main parts: the graphical interface and a background process. I do this with the help of another point of entry for the GUI. The background process starts automatically and the GUI is started using an application icon.

  What is the background process is 3 things:

  1. GPS location of the registry every 10 minutes
  2. Send GPS positions stored each hour to consume a web service (HttpConnection)
  3. Check if the user has saved records and send them to a server with the web services every hour.

  Sorry haven't looked hard to your code, but I see nothing that resets the LocationListener.  So I wonder if in fact the GPS is disabled?

  Memory, to stop a LocationListener, you need to do

  mLocProvider.setLocationListener (null, 1, 1, 1);

  I could be wrong, but I don't think that canceling the TimerTask will do that.

  I understand that there is advantage also made a getLocation() before departure using a LocationListener, to make sure that the GPS actually works.  But it would make your TimerTask blocking, and I'm not sure you want to do.

• How can I restart a TimerTask, I want to reuse an instance of TimerTask on click of a button

  but I understand once you call it once that's all. That cannot be reused.

  I get everything I try and reuse the same instance of TimerTask errors of State invalid, surely there must be a way to restart?

  Hello

  public class TimersThread
  {
  Minu private;
  public TimersThread()
  {
  Timer = new Timer();
  Timer.Schedule (new TimerTask() {}
  public void run()
  {
  Synchronized (UiApplication.getEventLock ())
  {
  Timer.Cancel ();

  }
  }
  (}, 1000);
  }

• I think I understand why the TimerThread has a ForcedStackTraceException?

  time GUID:0x9C3CD62E3320B498: Thu Jan 06 14:16:59 2011 severity: 0 type: 3 app:Java data exception:
  ForcedStackTraceException
  (196) 34 2 0x12FD2000 MyBBApp
  net_rim_cldc-2 (4B84A78F)
  TimerThread
      
  0xB1E7
  net_rim_cldc-2 (4B84A78F)
  TimerThread
  run
  0xB0F5

  I think that the reason is to create and start a thread in a Timer thread. I think that I would need the wire content to supplement and complete the timer?

  Doesn't sound right?

  1. (The application is activated) Event thread starts.
  2. (Screen) Create and start a Timer thread.
  3. The timer job runs every 15000ms.
  4. Create and start a thread in each task timer.

  without knowing what you want to achieve, it is difficult to understand your problem. generally, you use only a single timer. timertasks must be non-blocking. If you want to run blocking startup code (such as networking) a thread separate. If the discussions may overlap a queue could be used.

• Access the user interface via TimerTask

  Hello

  I am trying to invalidate the screen for updating a clock of a TimerTask. Unfortunately, I keep getting errors that are probably related to the synchronization of the threads properly. Here is my code for the timer... it runs every 5000 milliseconds:

  public void runTimer()
      {
          TimerTask task = new TimerTask()
          {
              public void run()
              {
                  if (!_dragging && !_screenUnlocked)
                  {
                      UiApplication.getUiApplication().invokeLater(new Runnable()
                      {
                          public void run()
                          {
                              synchronized(UiApplication.getEventLock())
                              {
                                  UiApplication.getUiApplication().getActiveScreen().invalidate();
                              }
                          }
                      });
                  }
              }
          };
          _timer = new Timer();
          _timer.schedule(task, 0, _timerDelay);
      }
  

  Can someone help me understand how to correctly access the invalidate method? Moreover, this method is part of a subclass of full screen...

  You need not be on the wire of event to make the invalidate(), in fact, I would recommend that you aren't.

  There are two common ways to get on the thread of events:

  (1) UiApplication.getUiApplication (.invokeLater)

  (2) synchronized (UiApplication.getEventLock ())

  You must use one of the other, you do not need to use both.

• Q:help with TimerTask in homework #1

  Hello

  so I am trying to create myself a TimerTask (part of homework...) and I'm stuck because I'm not understand what is happening now. I created an imlet that begins the timertask (or at least I think I have). The code that makes it looks like (this part of my IMlet):

  @Override

  public void startApp() {}

  startDate = new Date();

  System.out.println ("HomeWork1IMLet started:" + startDate.toString () .substring (0: 19));

  Timer = new Timer();

  timerTask = new TTask();

  Timer.Schedule (timerTask, 0, 2000);

  }

  My timertask class looks like this (short version):

  import java.util.Date;

  java.util.TimerTask to import;

  SerializableAttribute public class TTask extends TimerTask {}

  @Override

  public void run() {}

  Date startStopDate = new Date();

  System.out.println("1");

  System.out.println ("In TTask wire..." + executionTime (startStopDate));

  System.out.println("2");

  System.out.println ("Mins:" + getRunMinute (startStopDate));

  System.out.println("3");

  If (startSubThread (startStopDate)) {}

  System.out.println ("In TTask (run) wire Tjohoo");

  } else {}

  System.out.println ("In TTask (run) no tjohoo");

  }

  }

  private int executionTime (Date runDate) {}

  return Integer.parseInt (runDate.toString () .substring (0: 19));

  }

  private int getRunMinute (Date runDate) {}

  return Integer.parseInt (runDate.toString () .substring (14, 16));

  }

  Private boolean startSubThread (Date runDate) {}

  int minute = Integer.parseInt (runDate.toString () .substring (15, 16));

  return (minute == 5);

  }

  }

  Now the problem is if I use this class the only thing I get in the console is as follows:

  [INFO] [SECURITY] iso = 1:Application HomeWork1IMlet | atael assigned to the customer "not reliable."

  HomeWork1IMLet started: kills Apr 01 02:31:34

  1

  And I don't understand why I never go further down the code? I want to say that I never see 2 or 3 in the console or on the RPi? No idea what Miss me, I'm probably missing something basic...

  Thank you

  Andy

  Hi Andy -.

  The problem is in this line:

  return Integer.parseInt (runDate.toString () .substring (0: 19));

  You try to parse (as an integer) almost the entire Date String.  The result is a runtime, NumberFormatException exception.

  If you replace the code with a try/catch, you will see the error:

  	int result = 0;
  	try {}
  	result = Integer.parseInt (runDate.toString () .substring (0: 19));
  	} catch (NumberFormatException ex) {}
  	System.out.println ("NumberFormatException:" + ex);
  	}
  	return the result;

  Hope this helps,

  Tom

• An error in this Applescript that I can't understand

  Hi, I searched some forums and found this script below which I modified. It works great except for a single statement:

  runScript If = 1 then number error -128 I want the script to do is, when a USB drive is mounted and is in the ignoredVolumes as "USB Untitled" I want the script to stop. What I can't understand is, runScript is set to 1, "Untitled USB" Monte, runScript is not changed, why don't the script stops with an error "user cancelled"? On the other hand, if a key USB Monte is not in the ignoredVolumes, runScript is set to 2 and copy the file I want it. What hurts? It's probably something that will be very obvious when I see the answer.

  Thanks for any help with this problem,

  Mike.

  
  

  
  

  property ignoredVolumes: {'10,10 30 1. 5 't', 'files 1. 5 't', "Untitled USB"} - add if necessary

  property videoExtensions: {"avi", "mov", "mpg", "wmv", "mp4" and "mkv"}

  the value newVolume to the alias (POSIX file "/ Volumes/files 1.") ("5T / new")

  the value oldVolume to the alias (POSIX file "/ Volumes/files 1.") ("5T / old")

  game runScript to 1

                 tell application "System events".

  the value rootVolumes to disk (POSIX file ' / Volumes ' in the text)

  the value allVolumes to name of every element of disc of rootVolumes

  the value numofallVolumes to the County of allVolumes

  Repeat with the present book in allVolumes

  say application 'Finder '.

  if (the present book is not in ignoredVolumes and (this book as text) is not '. ') DS_Store') then

  if there are alias (POSIX (' / Volumes / "& the present book) as text file ) then game runScript to 2

  runScript If = 1 then number error -128 - it does not give a 'User cancelled' error when "Untitled USB" is mounted

  runScript If = 2 then

                                                                          try

  duplicate (elements whose name is in the videoExtensions extension) in alias (POSIX file (' / Volumes / "& the present book &" / new ") as text) to newVolume

  on error number errorNumber errorMessage

  _error value of errorMessage

  _errorNum the value to errorNumber

  If errorNumber is -15267 then

  display the dialog box "This file already exists in folder a." buttons {"OK", "No"} default button 1 with the title "Film copy error?" giving upwards after 10

  If the returned button of result is 'No' then

  Error number-128

  on the other

  If the result is 'OK' or back button gave up lead and then of

  eject the present book

  display the dialog box "U S B D r i v e E j e c t e d - K O t o R e m o v e" {"no need to click on this button"} default button 1 button give up after 5

  return

  end if

  end if

  end if

  end try

  Try

  duplicate (elements whose name is in the videoExtensions extension) in alias (POSIX file (' / Volumes / "& the present book &" / old ") as text) to oldVolume

  on error number errorNumber errorMessage

  _error value of errorMessage

  _errorNum the value to errorNumber

  If errorNumber is -15267 then

  display the dialog box "This file already exists in the folder B" buttons {"OK", "No"} default button 1 with the title "Film copy error?" giving upwards after 10

  If the returned button of result is 'No' then

  Error number-128

  on the other

  If the result is 'OK' or back button gave up lead and then of

  eject the present book

  display the dialog box "U S B D r i v e E j e c t e d - K O t o R e m o v e" {"no need to click on this button"} default button 1 button give up after 5

  return

  end if

  end if

  end if

  end try

  display the dialog box "USB key will Auto Eject in 10 seconds or click OK... "buttons button 1 with the title"copy Complete - Eject? "default {'OK', 'No'} which gives after 10

  If the returned button of result is 'No' then

  Error number-128

  on the other

  If the button returned of result is "OK" or gave up a result then ejection of the this book

  display the dialog box "U S B D r i v e E j e c t e d - K O t o R e m o v e" {"no need to click on this button"} default button 1 button give up after 5

  end if

  end if

  end if

  end say

  end Repeat

            end say

  The way in which your external block If is currently based, the script can't do anything when this book is in the ignoredVolumes, it can not yet test the runScript value. Try something like this:

  If the present book is in the ignoredVolumes then

  game runScript to 1

  on the other

  if (the present book as text is not '. ') DS_Store') then

  if there are alias (POSIX (' / Volumes / "& the present book) as text file ) then game runScript to 2

  end if

  end if

  
  

  Of course, you need to remove a "end if' the end of the script.

  
  

  
  

• Is Siri macos sierra - final list of control system that siri understands?

  I've seen excerpts of suggest some system settings that Siri can control, for example "switch off bluetooth", what is optimal, but "turn off the bluetooth mouse" would be more useful batteries changing as the former makes my imac (with mouse and wireless keyboard) totally unusable and unrecoverable without turning off or dig this long-lost old Dell USB keyboard TAPI at the bottom of the Cabinet.

  FWIW if you try siri "switch off the bluetooth mouse" just does not take into account the part of the mouse and disables it all!

  Then, I browsed the net to get a list of orders for the system or settings that siri understands and found the same things, 4 or 5, re-stuck again and again.

  I tried to ask Siri what settings it could change and says "Bluetooth is already lit" doh?

  Beats me why and maybe there isn't and I found it simply not, apple have not documented it better - all I could find was this macOS Sierra: ask Siri

  So has anyone seen a better resource for whats possible?

  Hello, Jessica,.

  Go to this website: https://hey-siri.io

  Then got to settings > macOS Sierra to see the commands of the Sierra

• new update of Apple Watch doesn't have My Watch tab. I can't understand how to set up friends or family ring

  I updated my Apple Watch with the latest version of the software that is 10 IOS. But the last update did not My Watch tab in the settings. I can't understand how to set up friends or family ring? Any help on this will be appreciated.

  Hello

  IOS 10 (as in the previous version of iOS), My Watch tab is located in the application of the watch (not in the settings).

  If you have also updated your Apple Watch to watch OS 3, note that the application of friends (accessed via the side button, with a circle of people) has been removed from the watch and that there is no direct replacement for this feature.

• Understand migrations from iPhoto to Photos

  After you migrate an iPhoto for photo library, the file extension of the iPhoto Library is changed in .migratedphotolibrary, and my understanding is that the two libraries share the same files through the use of "hard links". I've also read that if one of the libraries is published subsequently, what causes the link between versions of break. Is this true?

  If so, my questions are:

  (1) If hard links break, this means that storage on hard drive required by the two libraries is increased by the size of one of the libraries? If so, who would not take a little time if the booksellers were important, for example 100 GB or more?

  (2) immediately after the migration, what happens if one of the libraries I move to a different folder? Again break hard links? If so, same question as above.

  No - change or deletion of a form of photos a library does not break the hard link and has no effect on the other library - they are totally independent

  1 - Yes

  2. Yes, I believe that to break hard links - travel for sure as a library to another volume break

  Why move a? Usually simply leave you it where it is for several months until you are sure that you need is no longer and then archive and delete

  LN

• Can't understand why audio files always take a lot of space on my macbook

  Hi everyone, I apologize if this has been asked before, I'm going cross-eyed trying to find an answer.

  Stupidly, I didn't use iCloud DOES NOT mean that all my music and photos would be stored on the cloud and take MUCH space on my macbook. I discovered the hard way. So I'm moving all my pictures and music on an external drive. All well and dandy. Except that since I moved my iTunes library and all my music files, when I look at my storage, it shows still 154 GB allocated to audio. (Meanwhile there are now 140 GB Audio on my seagate SOMETHING that was supposed to happen happened.) I've looked everywhere, I can't understand why there are still some 154 GB of audio files on my laptop. Any suggestions or tips are greatly appreciated. Please be lenient, I was on a pc for a few decades and finally crossed the step last year, but I'm still confused by all this cloud stuff and find my way in on a mac. (I'm on OS X Yosemite). I guess it's one thing to iTunes, but I could be far away.

  Thank you in advance.

  I guess that after you copied the folder iTunes external hard disk, you checked if everything is there, then deleted the folder iTunes on your Mac drive.

  If NOT, then you know what to do.

  If so, force Spotlight to reindex the reader.

  Rebuild the index on your Mac - Apple Support Spotlight

  ---------

  iTunes: link again or external HD library:

  * Open iTunes while holding down Option (Mac) or shift (Windows).

  * In the dialog box, click Choose library.

  * Select the iTunes folder that you moved to the external hard drive.

  * Click on choose (Mac OS X) or open (Windows), and then choose the library inside iTunes file.

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  My MacBook Pro was built in mid-2009, a 2.6 GHz, 13-inch, I just put a new hard drive 700 GB and I added a new battery to include a new CD/DVD drive.  I spent more than 400 million dollars.

  I understand that I won't be able to get the next Sierra of OS. I need to by a new Mac?

  Talk to the people the more I would get if I turn in I'd get is about are about $ 100 million.  Please tell me it isn't so.

  If you want Siera you will need a new Mac, but you can continue to use the old one as long as you want.

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  WARNING: SUID "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAg ent" file has been modified and will not be repaired.

  I know that my company (they have put in place and the laptop power) started using remote access to address issues of service to their end; I don't know if it's relevant (I'm not educated on computers, my apologies in advance for that).

  This particular message can be ignored.

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  Besides, my watch is custom in Spanish, but only answer messages Whatsapp understands English... anyone know why? Thanks to you all!

  Hello

  To change the language for a response on your watch: Press answer > firmly press the screen > press on choose language > select Spanish.

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  Make sure that the last formats video Prois installed.

  Russ