When new notifications arrive, you can preview their content and collapse them by swiping up, or dismiss them by swiping sideways.
Follow these steps to preview notifications on Vivo V7+
Step 1: Go to 'Settings' and select 'Status bar and notifications.'

Select 'Status bar and notifications.'
Step 2: Select the top preview style.

Select the top preview style.
Step 3: Select floating.

Select floating.
Congratulations! Your setup process is now complete. Wishing you all the best.
