I don't use TimerTask in Java. For reasons that were never 100% clear to me, the online docs for the JDK and other sources recommend using a Handler instead. There is even an example in code in the docs for Handler somewhere, but as I write this, I can only find a similar one at http://www.muktosoft.com/timer-in-android-the-better-way/, also a good source.
But if you really want to use a TimerTask, see http://developer.android.com/resources/articles/timed-ui-updates.html On Jun 29, 1:17 pm, New Developer <[email protected]> wrote: > I'm struggling to close these two timer tasks > > I have > @Override > public void onCompletion(MediaPlayer arg0) { > try { > mMediaPlayer.stop(); > mMediaPlayer = null; > if (timer != null) { > timer.cancel(); > timer.purge(); > Thread.sleep(500); > } > timer = null; > } catch (Exception e) { > } > } > > The sleep just to give it chance to run through > But I get a NullPoinerException on the sleep line > > Thread [<12> Timer-0] (Suspended (exception NullPointerException)) > Timer$TimerImpl.run() line: 290 > > this Timer$TimerImpl (id=830020453552) > currentTime 1309378473189 > pos 0 > task Video2$2 (id=830013266400) > cancelled false > fixedRate false > lock Object (id=830013265024) > period 500 > scheduledTime 1309378473189 > this$0 Video2 (id=830013820608) > when 1309378473690 > > So how does one close the timer once the video has come to and end ? > > Thanks in advance > > On Jun 29, 2011, at 2:53 PM, New Developer wrote:> To Daniel > > > Thanks again > > Okay that seems to be working > > > Just to clarify > > the 0 , 200 implies start immediately and re-occur every 200 > > milliseconds ? > > > the 100 , 200 implies start in 100 milliseconds and re-occur every 200 > > milliseconds ? > > > Thus there is two cycles going 100 milliseconds apart causing it to play > > for 100 milliseconds and then pause for 100 milliseconds > > so it plays (for 100 ms) pauses for (100 ms) > > > am I right ? > > > thanks again > > > On Jun 29, 2011, at 9:46 AM, Daniel Drozdzewski wrote: > > >> On Wed, Jun 29, 2011 at 1:37 PM, New Developer <[email protected]> wrote: > >>> To Daniel > >>> I have tried pause no success > >>> can you let me know more what you were thinking perhaps I have > >>> implemented it incorrectly ?? > > >>> Thanks again > > >> Sure, I was thinking following (I have not implemented this myself mind): > > >> <code> > >> MediaPlayer player; > >> Timer timer = new Timer(); > >> //initialisation of the player > > >> timer.schedule( new TimerTask() { > >> run() { > >> player.start(); > >> } > >> }, 0, 200); > > >> timer.schedule( new TimerTask() { > >> run() { > >> player.pause(); > >> } > >> }, 100, 200); > > >> </code> > > >> You schedule 2 recurring tasks on a Timer: one to resume/start the > >> video every 200 milliseconds, and the second to pause it also every > >> 200 milliseconds, with 100 millisecond offset. This should slow the > >> playback by the factor of 2. You can adjust the numbers to get > >> different ratios and I would not play or pause for longer than say 500 > >> milliseconds, as it will look jerky. > > >> It is possible that both timers will diverge (no real-time promise), > >> in which case you will have to do something a bit more clever than > >> arbitrary numbers, as the paused_time / play_time ratio will shift. > > >> You will probably need to monitor actual track progress by using > >> MediaPlayer.getCurrentPosition(), rather than the inaccurate wall > >> clock. > > >> Daniel > > >>> On Jun 12, 2011, at 3:52 AM, Daniel Drozdzewski wrote: > >> ^^^^^^^^^^^^^^^----- Internet got very slow or The Matrix is > >> overloaded (could not resist) > > >> -- > >> 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 -- 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
