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AndroidAttribute Compatibility in Android API lower than Lollipop.

See original GitHub issue

Issue details

Running LibGDX project in Android 4.4.2 (and possibly all APIs lower than Lollipop) produces error:

04-27 14:55:43.157 7183-7183/com.mygdx.test442 E/dalvikvm: Could not find class 'android.media.AudioAttributes$Builder', referenced from method com.badlogic.gdx.backends.android.AndroidAudio.<init>

I googled it and possibly found solution. This answer explains why this error is popping up. I didn’t get it properly but I know you guys are the masterminds here.

Reproduction of issue

Running LibGDX project in Android 4.4.2? Error is produced from LibGDX package class AndroidAudio. I thought it might be related to my code so to verify I created a new GDX project and ran the apk wihthout changing a single word. It works fine but logcat in Android Studio shows the same error.

Version of LibGDX and/or relevant dependencies

LibGDX version : 1.9.10

Stacktrace

04-27 14:55:43.157 7183-7183/com.mygdx.test442 E/dalvikvm: Could not find class 'android.media.AudioAttributes$Builder', referenced from method com.badlogic.gdx.backends.android.AndroidAudio.<init>

Please select the affected platforms

Android
iOS (robovm)
iOS (MOE)
HTML/GWT
Windows
Linux
MacOS

Issue Analytics

State:
Created 3 years ago
Comments:7 (5 by maintainers)

Top GitHub Comments

2reactions

SimonITcommented, Apr 30, 2020

I ran the AudioDeviceTest on an Android 4.0.4 emulator and I get also the error, but I can hear the annoying tone (which it should produce), too. Do you have the actual problem that audio is not played? Or is this only a hint that there could be a problem? @decepticlown Because if everything is working, in my opinion we shouldn’t change anything for the decreasing group of Android 4 users.

2reactions

MobiDevelopcommented, Apr 30, 2020

I think the short answer is “it’s complicated”, but the longer answer seems to be described here: https://stackoverflow.com/a/30262940/416549

So, no, reflection appears not to be needed, but some sort of encapsulating class is.

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