Why don't you check your progress bar if it's null before modifying it? If
the progress bar got garbage collected it's safe to say that it is not
there anymore (not visible) and any modification wouldn't make any sense at
that stage.
On Wednesday, December 11, 2013 8:43:56 AM UTC-6, TheNetStriker wrote:
>
> I've got a question regarding WeakReferences in Android. I'am using
> AndroidQuery in my app to load images asynchronous. I've modified the
> AndroidQuery source a bit, so that it is also able to send progress
> callbacks so that I can update the progressbars in my notifications. The
> problem is that the progress object in AndroidQuery is referenced as
> a WeakReference so that references to progressbars which are no longer
> visible on the UI are getting garbage collected. The problem now that
> AndroidQuery works with an ExecutorService and that my callback objects
> also are getting garbage collected when the Runnable has to wait for its
> execution. I could change the WeakReference to a hard one to fix this
> proboem, but then I would have memory leaks when referencing progressbars
> directly. Here is how I pass the callback interface to AndroidQuery:
>
> aq.progress(new ProgressCallback() {
> @Override
> public void setProgress(final int progress) {
> //update progressbar
> }
> @Override
> public void setMax(int max, int progress) {
> //update progressbar
> }
> })
>
> Is there a way to pass such a callback object without loosing the
> reference when it is referenced inside an WeakReference object?
>
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