Google has a nice page here showing how to do this: https://developer.android.com/distribute/tools/promote/linking.html
Basically, use this code, and it will open the Play Store to the new apps page:
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse("market://details?id=com.example.android"));
startActivity(intent);
When I try this however, I get the error:
Cannot resolve the symbol 'Uri'
What am I missing? I'm sure its extremely simple, perhaps something I need to import.
SOLVED: Importing the Uri class was the issue. I'm still not sure what the new hot key is to import it. Apple-Shift-o doesn't work anymore. A button on the line showed up after a while and offered to import it for me.