Android Question App show alert and makes sound until user accepts or declines the alert, no matter if the phone is blocked or app is not active

[marius_c]

My app needs to show to alert a user and continue to show the alert and make a sound until the user accepts or declines it. This will need to happen even if the phone is locked, asleep, or the app is not active (it would be nice to have this functionality even if the application is killed, but it is not mandatory).

The use case is similar to an incoming phone call or an alarm. How can I achieve this? (I do not normally do android development, this is a personal project of mine)

 

[Erel]

Showing an interface while the app is in the background requires a few extra steps in Android 10+.
You will need to have a foreground service. You can make sounds from the service. You can also put a notification and use it instead of the "alert dialog".

Relevant threads:
Background location tracking
android.jar / targetSdkVersion / minSdkVersion
NB6 - Notifications Builder class (2018)

 

[marius_c]

Showing an interface while the app is in the background requires a few extra steps in Android 10+.
You will need to have a foreground service. You can make sounds from the service. You can also put a notification and use it instead of the "alert dialog".

Relevant threads:
Background location tracking
android.jar / targetSdkVersion / minSdkVersion
NB6 - Notifications Builder class (2018)

Will this work also when the phone is blocked/not idle?

 

[Erel]

What do you mean with blocked?

 

[DonManfred]

I guess he means LOCKED (device is sleeping (monitor off)).

 

[marius_c]

Exactly, I meant LOCKED (device is sleeping (monitor off)).

 

[Erel]

You can use StartServiceAt to schedule a service to start at a specific time.