Hi everyone,
I have a problem running latest Vuforia samples.
When I run them on HTC Nexus 9 device (Android 7.1.1) everything is fine. But when I run them on Samsung SM-T560 (Android 4.4.4) device there is no video background - only black screen. However, the targets are correctly detected (but not shown).
I faced this problem when I tried to run my app on different devices. I though the problem was the way I am using Vuforia library, but then I ran samples and the problem was still there. If there is a way to fix this and somebody knows how, that would be very nice.
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When I installed your APK it worked.
So I compared your project structure to mine and I realized that I didn't install samples in the right folder (vuforia-sdk-android-6-2-10/samples). Even though I did reference vuforia sdk from app/build.gradle (def VUFORIA_SDK_DIR = '...') it was still a problem for some reason (I probably did some other configuration mistake).
This still didn't help to get my application to work, but luckily I found where the problem was - I used GLSurfaceView instead of SampleApplicationGLView. Now everything works fine. Thank you for all your help.