Problem access camera in marshmallow

[kasfulanwar]

Hai Mate..

Thanks for your qreader that help me so much in my apps,

my apps works fine in my device with Android 5.0 Lolipop, but I have problem when I test it in Android 6.0 Marshmallow, my apps cannot access the camera, the surface view only display a blank black screen, I already try update my SDK platform to Android 8.0 Oreo and update my JDK to JDK8, but still don't resolve the problem,

I hope you can help me, maybe it's my mistake, I really appreciate your effort and everything you have done,

Best Regards and Thanks a lot..

Attachment :

[nisrulz]

Have you provided the Runtime Permission? Android M onwards there is runtime permission system, which you need to request while the app is running and the user is supposed to accept that. Only then you would have access to the camera.

[kasfulanwar]

Hai @nisrulz thanks for your advice, I already fix this issue with changing my gradle script

from : defaultConfig { applicationId "###" minSdkVersion 15 targetSdkVersion 23 versionCode 1 versionName "1.0" }

to : defaultConfig { applicationId "###" minSdkVersion 14 targetSdkVersion 22 versionCode 1 versionName "1.0" }

I found the solution from a phonegap forum :D , So thanks a lot..

[nisrulz]

@kasfulanwar the fix you have put in is basically not targeting Android M. I believe if you would like to target higher android api, you should look into runtime permissions and that allows you to push your app to the latest android api i.e API 26 which is Android Oreo.

If this works, then good. But in future, if you would want to target API 23+, try out the fix I have suggested.

[MrSilverstein]

Same issue here for Android M devices with qreader version 2.1.2: Right after granting the CAMERA permission with ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.CAMERA), 100), I have to restart the very same Activity (including SurfaceView) again and finish old one to avoid that black screen on SurfaceView: startActivity(Intent(this@QrActivity, QrActivity::class.java)) finish() It would be more elegant if I could avoid calling same Acvtivity again..

[nisrulz]

@murathada that is a limitation on the library and since it has not been updated for some time, this is how it works.

Although I agree it is not elegant and I do want to address this.

[MrSilverstein]

@nisrulz Thanx for answer. Crossing the thumbs fot that library ;)