I made an application with Navigation Drawer using the AS wizard, in the first screen "MainActivity" implemented a layout with TabsLayout and ViewPager and everything is working perfectly, this app has other activities and they do not have access to the Drawer, the application requester asked me to do this, I thought of going back to doing all the other activities to get to this implementation even with few activities 6 this would give a certain "repetitive" work, so I thought about using Fragments.
With Fragments my work would be reduced since the "kernel" of the screen is that it would be updated and this would reduce my work of having to go out inserting the drawer in all the other activities more ...., I am finding it difficult to use Fragments and refactor my app what came to me then the question is it a good practice to have an app with these features? the IDE itself in its wizards or gives option of one or the other, I looked for examples with Drawer and Tabs or for some post that addresses the subject, meeting Drawer and Fragments even more within this with Tabs no.
I even got this in my first activity to put in a fragment only that I already encountered problems with the Tabs that did not stay with Toobar, if I rotate the device the contents of the Tab disappears, after I select one or the other that the same appears, so I'm even afraid to go to the other activities turning them into fragments.
Is it good to practice an application with these elements?