Databases
StackOverflow2013
Postsdbo
POAndroid- Thread.join() causes Application to hang
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POAndroid- Thread.join() causes Application to hang
    primarykey
    data
    text
    <p>I have a thread which handles my game loop, when i call .join() on this thread the application stops responding. I've been trying to fix a problem where the programs never get to the code, I.E the thread never ends.</p> <pre><code>System.out.println("YAY"); </code></pre> <p>My Thread for the Game Loop:</p> <p>This thread successfully prints out "Game Ended" but never seems to finish.</p> <pre><code>Runnable startGameLoop = new Runnable() {//game loop @Override public void run() { AiFactory ai = new AiFactory(); final Button play = (Button) findViewById(R.id.Play); final Button pass = (Button) findViewById(R.id.Pass); while(finish==false){ try { Thread.sleep(500); } catch (InterruptedException e) { e.printStackTrace(); } currentPlayer = game.getPlayer(); if(currentPlayer.isPlayer()==false){ //System.out.println("passCount:" +game.getPasscount()); ai.decide(nextPlay, game.getPreviousPlayed(), currentPlayer, game.getPasscount() ); if(nextPlay.size()!=0){ runOnUiThread(new Runnable(){ public void run(){ changeArrow(); if(nextPlay.size() ==1){ play1Card(); } else if(nextPlay.size()==2){ play2Card(); } else if(nextPlay.size()==3){ play3Card(); } else if(nextPlay.size()==5){ play5Card(); } } } else{ game.addPassCount(); game.nextTurn(); runOnUiThread(new Runnable(){ public void run(){ changeArrow(); } }); } } else if (currentPlayer.isPlayer()==true){ runOnUiThread(new Runnable(){ public void run(){ changeArrow(); play.setClickable(true); if(game.getPasscount()==3){ pass.setClickable(false); } else{ pass.setClickable(true); } } }); } } System.out.println("Game Ended"); } }; </code></pre> <p>Starting and joining the thread to the main thread:</p> <pre><code> Thread myThread = new Thread(startGameLoop); myThread.start(); try { myThread.join(); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } System.out.println("YAY"); } </code></pre> <p>To my understanding .join() makes the current thread wait till the new thread has finished before carrying on.</p> <p>Sorry if this is a stupid question, i'm quite new to threading.</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USWayne Yun Leung
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POAndroid- Thread.join() causes Application to hang
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POAndroid- Thread.join() causes Application to hang
      1. This table or related slice is empty.
      1. VTUpMod
    1. COWe need a little more context. Where does this call to `join()` occur. Most likely you are doing this on the UI thread which would explain why your app hangs.
      singulars
      1. POAndroid- Thread.join() causes Application to hang
      1. USCode-Apprentice
    2. COjoin occurs in onCreate() in a Activity Class
      singulars
      1. POAndroid- Thread.join() causes Application to hang
      1. USWayne Yun Leung
    3. COSo your app is waiting for a thread to terminate before it finishes creating the Activity. Is this *really* what you want to do? If not, what *are* you trying to do here?
      singulars
      1. POAndroid- Thread.join() causes Application to hang
      1. USCode-Apprentice
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload