Lance, Wonderful. Thanks very much for your kind explanation. Re, ag
On Nov 14, 11:53 am, Lance Nanek <[email protected]> wrote: > Is this what you are trying to do? > final Handler mHandler = new Handler() { > public void handleMessage(Message msg) { > Log.i(TAG, "Received message. Checking if location still > null."); > > if(location!=null){ > Log.i(TAG, "Location not null. Dismissing dialog."); > dismissDialog(DIALOG1_KEY); > } else { > Log.i(TAG, "Location null. Sending delayed message to > check again > later."); > sendEmptyMessageDelayed(0, 100); > } > }}; > > showDialog(DIALOG1_KEY); > mHandler.sendEmptyMessageDelayed(0, 100); > > No new thread needed. That said, why not just have whatever sets the > location to not be null also trigger the dialog to be dismissed? If it > is on another thread it can send the Location in a message and have > the assignment and dismiss happen on the UI thread just as easily as > the above causes the check to happen on the UI thread. > > Re Looper#prepare and Looper#loop, you would only need to call those > if you created a Handler on your new thread. You are creating the > Handler on the thread that was creating your new thread. If that > thread is the UI thread, it doesn't need the looper calls because it > already has a message queue running. Looper#loop doesn't cause your > own code to loop anyway, it causes the code that gives out messages to > handlers to loop. > > On Nov 14, 5:22 am, adag <[email protected]> wrote: > > > Hello, > > > Here is my code: > > -------------------------------------- > > final Handler mHandler = new Handler(){ > > public void handleMessage(Message msg) { > > if(location!=null){ > > Log.i(TAG, "got message > > from handler"); > > dismissDialog(DIALOG1_KEY); > > //this.getLooper().quit(); > > } > > } > > }; > > showDialog(DIALOG1_KEY); > > > new Thread(new Runnable() { > > > public void run() { > > > Looper.prepare(); > > try > > { > > > > Thread.sleep(100); > > } > > catch (InterruptedException e) { > > > > // TODO Auto-generated catch block > > > > e.printStackTrace(); > > } > > > > mHandler.sendEmptyMessage(0); > > Looper.loop(); > > }//end of run > > }).start(); > > -------------------------------- > > The problem is as follows: > > progressBar is showing correctly. mHandler obtains the message but > > only once(for the first time). But I need to make it in loop(as > > Looper.loop should have worked in this case), so it calls mHandler > > handleMessage in every loop(but its not happening in this case). > > The outcome progressBar kept on rotating though the condition in the > > handleMessage (if(location!=null) )is getting satisfied in the mean > > time of the active progressbar. > > How can I make mHandle,sendEmptyMessage to call in each loop so I can > > check for this (if(location!=null)) condition. > > > Any Suggestion would be very helpful > > > ag > > -- 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
