How do I publish apps for tablets in the Play Store?

Question

I can’t make my app available to 7 and 10 inch tablets, when I send the APK to the Developer Console, it shows the following error:

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Design your app for tablets
Your APK does not seem to have been designed for tablets

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I searched on how to solve on the internet but did not find an answer to my doubt. This link was the closest I found to my problem.

Criteria used by Google Play to determine whether an app is designed for tablets

As the image shows, I made the layout for all sizes and icons too:

Answer 1

Give a check, if you use any specific permission only for smartphones, such as the link:

<uses-permission android:name="android.permission.CALL_PHONE"></uses-permission>

For it to work on tablets too, you must change this permission, to:

<uses-feature android:name="android.hardware.telephony" android:required="false" />

This is just one example, there are several permissions that if vc use in your project, will make it unique to smartphones.

Answer 2

Just one little addition: Creating Layouts for the smallest width as 600dp would be encouraged since you plan to publish for tablets. (layout-sw600dp) xxhdpi sometimes get uncomfortable on tablets of 10"