Thank you so much! You led me right to the problem. I was using code I
found on Sun's website on how to start and stop threads and it was
creating a second thread every time it ran.
I want to post the solution in case anyone else has this issue.
This is what I started with.
blinker makes a new thread and that was the issue.
public class AndroidThread extends Thread {
private Thread blinker;
@Override
public void run() {
Thread thisThread = Thread.currentThread();
while(blinker == thisThread){
work();
}
}
public void work() {
}
public void startThread() {
blinker = new Thread(this);
blinker.start();
}
public void stopThread() {
blinker = null;
}
}
This is what I changed it to.
public class AndroidThread extends Thread {
private Thread blinker;
@Override
public void run() {
Thread thisThread = Thread.currentThread();
while(blinker == thisThread){
work();
}
}
public void work() {
}
public void startThread() {
blinker = this;
blinker.start();
}
public void stopThread() {
blinker = null;
}
}
On Thu, Mar 4, 2010 at 3:36 PM, fadden <[email protected]> wrote:
> On Mar 4, 1:02 pm, Joshua Frank <[email protected]> wrote:
>> I have a couple of worker threads in my app which I stop and restart
>> during onPause() and onResume(). I use a method that clears all the
>> reference to and from the threads when stopping. However ThreadGroup
>> is still retaining a reference to my threads and causing a small
>> memory leak. After pausing and resuming my app about 40 to 50 times I
>> will then get OutOfMemory Errors when loading bitmaps. Allthough this
>> doesn't effect most of my users I do get occasional reports of
>> crashes.
>
> The only leak I know of in this area happens with Threads that are
> never actually started. Threads remove themselves from the
> ThreadGroup before they exit, but if they're never started then they
> never have a chance to do the remove.
>
> See also:
> http://groups.google.com/group/android-beginners/browse_thread/thread/151a405ebc822d10#
>
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Joshua Frank
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