Volume Slider is Like Android P Volume Control, its like Volume control Widget recently introduced in first developer preview of Android P.
Its like a new vertical volume control to adjust volume in android P and onward updates.
Volume Slider allows exactly the same Volume control widget for all android devices from android 4.1+ on wards.

No wait for official android P support for your device. install Volume Slider app and have a similar experience for controlling volume for your phone.

App shows floating volume control like android P and its floating volume control that runs above all running apps and games, so without leaving your running app, you can easily increase or decrease volume of game or app.

App reviews by android popular websites:

XDA:
App brings the new volume control look to any Android 4.0+ device. The app also adds a bunch of customization options for the volume slider. You can put it in different places on the screen or put it in the notification shade if you’d prefer. Don’t wait for Android P to get the latest features
https://www.xda-developers.com/android-p-volume-slider-app/

Android Headlines
App called Volume Slider-P Volume Control – brings the aesthetics of that tool to any Android device running version 4.0.3 or newer, give this app a shot for anybody looking to capture that Android P feel just a bit earlier than others
https://www.androidheadlines.com/2018/03/new-app-gives-users-android-p-like-volume-controls.html

Droidviews, android police and many more
How to Get Volume Slider on Any Android
http://www.droidviews.com/android-p-volume-slider-on-any-android/
https://www.googlewatchblog.de/2018/03/android-p-volume-slider/
https://9to5google.com/2018/03/15/how-to-android-p-volume-slider-launcher-older-devices-android-basics/

To make volume adjustments a bit easier, App lets you raise or lower your volume level by simply swiping down the notification of your screen.
Its Volume Toggles at Volume notification and also have Volume control Widget, so you can instantly change and control volume levels form your home screen and quickly adjust the current volume levels of alarm, media player, voice call, ringer and system notifications..

FEATURES
◇ P like Floating Volume Panel with default duration for it.
◇ Volume Slider Position on screen to reach out the seekbar easily
◇ Color for Volume Notification bar and for Widget too.
◇ Color option for Toggles icon on notification bar
◇ Install and explore more..

INTERACTIVE WIDGETS
Volume Slider Widgets are very similar of Volume Toggles in Notification bar and provide the same functions.

PERMISSIONS
Please note that the following permissions are required to use the app (the function/reasons are provided in brackets):

✔ Accessibility Permission(this permission required only if you want to override hardware volume keys, app still works without this permission)
✔ Do Not Disturb Permission(Android 7+ devices require this permission to change the volume level to 0 or increase it from 0)
✔ System Overlay Permission(Floating Volume Control panel runs on top of any running apps and it require this permission)
✔ Run at startup (restore settings after startup)

NOTE: Starting from Android version 4.1.x (Jelly Bean) in the standard firmware channels "System", "Alert" and "Ringer" are tied.
They can not be set separately. This is not the reason to blame the app.
At the same time, in some versions of firmware (e.g. in Samsung), these channels are NOT tied. Therefore the App have the opportunity to display and to adjust them separately, if possible.

Please visit www.yogeshdama.com for more details.
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for issues and suggestions please email us at [email protected]

Recent changes:
Minor enhancements.