In the Play developer console it says:
Your APK does not seem to be designed for tablets
But I have added layouts to layout
It seems all to be about screenshots! I have quoted this from google play listing store section in google play console 24/09/2015 :
Screenshots: *
Default – Arabic – ar JPEG or 24-bit PNG (no alpha). Min length for any side: 320px. Max length for any side: 3840px.
At least 2 screenshots are required overall. Max 8 screenshots per type. Drag to reorder or to move between types.
For your app to be showcased in the 'Designed for tablets' list in the Play Store, you need to upload at least one 7-inch and one 10-inch screenshot. If you previously uploaded screenshots, make sure to move them into the right area below.
I uploaded new screenshots, the problem was solved!
Actually depending on the screenshots is more logical than depending on analysing the APK. Since some apps has not lots of contents to show!
Happy Androiding!