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androidrace-conditionandroid-gallery

Weird gallery + broadcast receiver behavior

OK, so I have a broadcast receiver get called and in the onReceive() method I update a gallery with a new adapter using static data, all done on the UI thread.

However, nothing changes. The old data is left in the gallery, but when I debug my code and take my time it updates after invalidate is called. Oh, BTW, the view is in a ViewFlipper, but I change to the proper view before creating the new adapter. So I have a race condition, is this normal? If it isn't, what should I do?

Below is a sample of what I'm talking about in the onRecieve().

onRecieve() {
    mFlipper.setDisplayedChild(0);
    mNavAdapter.addCategory(-1);
    mGalNav.setSelection(0);
    getCategoryProducts(-1);
}

void getCategoryProducts(int category) {
   mGalProducts.setAdapter(new DealCheckInAdapter(this,
   getCheckInProducts()));
   mGalProducts.invalidate();
}
Solution

  • The invalidate() method is not supposed to do what I'm guessing you thinking it will do. You suppose to use: 

    mDealCheckInAdapter.notifyDataSetChanged();

    This is the method which "refreshing" the listView adapter.