Crash when opening any conversation on Android 7.1

[MmAaXx500]

Steps to reproduce

1. Open Talk
2. Click on any conversation (confirmed with Talk updates and a group chat)
3. Crash

Expected behaviour

The conversation should open.

Actual behaviour

Crashes because java.lang.NoClassDefFoundError: Failed resolution of: Landroid/media/AudioFocusRequest$Builder;

Culprit based on the logs:

talk-android/app/src/main/java/com/nextcloud/talk/chat/data/io/AudioFocusRequestManager.kt

Line 65 in e9fc23a

private val focusRequest = AudioFocusRequest.Builder(duration)

Device brand and model

samsung SM-J320F

Android version

25

Nextcloud Talk app version

v20.1.0 Alpha 08

Nextcloud server version

29.0.8

Talk version

19.0.10

Custom Signaling server configured

No

Custom TURN server configured

No

Custom STUN server configured

No

Android logs

logcat-relevant.txt

Server log

No response

Additional information

Same behavior on latest stable (v20.0.2).

[rapterjet2004]

Makes sense, as AudioFocusRequest was added in Api level 26. Updating should fix the issue. Anyway, I'll see If I can fix it with an API check.