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An AlertDialog can be invoked from a service which is possible (link for the same), but had a doubt here, like invoking an alert dialog from a android service is against Google UI guidelines or not ? If I do so will my developed application fail certification ?

Janvi Vyas
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Murtaza Kapadia
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2 Answers2

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An AlertDialog can be invoked from a service which is possible

Not really. The blog post that you link two shows two options:

  1. Do not use AlertDialog, but instead use a dialog-themed activity

  2. Use SYSTEM_ALERT_WINDOW, which is a complicated permission and one that users may not grant to you

Of the two, the first is a much better answer.

like invoking an alert dialog from a android service is against Google UI guidelines or not ?

I do not know what you consider "Google UI guidelines" to be. I do not recall Material Design addressing this issue.

However, popping up a UI from the background is very user-hostile. You do not know what the user is doing in the foreground. For example, if the user is trying to use a navigation app, your dialog may cause a car crash.

Please use a notification — perhaps a heads-up notification — rather than displaying a dialog from the background.

If I do so will my developed application fail certification ?

You would have to ask whoever is certifying your app. There is no standard certification process in Android.

For the Play Store, Google has their app developer policies, and you would need to see whether your dialog would violate any of those policies.

CommonsWare
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  • https://developer.android.com/guide/practices/ui_guidelines/activity_task_design Check this link it states that Use the notification system — don't use dialog boxes in place of notifications If your background service needs to notify a user, use the standard notification system — don't use a dialog or toast to notify them. – Murtaza Kapadia Apr 26 '18 at 06:37
  • @MurtazaKapadia: First, that document is deprecated. Second, that document specifically tells you what I did (see "Use the notification system — don't use dialog boxes in place of notifications"). – CommonsWare Apr 26 '18 at 06:40
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It highly recomended to not do this, check the below post on stackoverflow Link

And if even want to do that

dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);

TYPE_SYSTEM_ALERT window layout parameter to Dialog

need additional permission for this

<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
Jarvis
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