Broadcasts are delayed

Question

We use broadcasts to communicate state changes between a remote services and our UI. Doing this, we discovered a very strange behaviour: Sometimes (I can not find any clues why)

Answer 1

After searching for a answer for hours, I found the? solution after posting this.

It seems like that adding the FLAG_RECEIVER_FOREGROUND flag to the intent completly removes this delay. Would be still nice to know why this happens and if this is a good "fix" or if I destroy something else with this.

This does the trick:

    intent.setFlags(FLAG_RECEIVER_FOREGROUND);

If set, when sending a broadcast the recipient is allowed to run at foreground priority, with a shorter timeout interval. During normal broadcasts the receivers are not automatically hoisted out of the background priority class.

Source: https://developer.android.com/reference/android/content/Intent.html#FLAG_RECEIVER_FOREGROUND