Using an app Installing a dedicated app is perhaps the easiest way of changing your Android device's wallpaper on a schedule. Wallpaper Changer is the best-known app for the job, though there are others around on Google Play, including Tapet, which can also be used to generate unique wallpapers. We'll focus on the former here. Fire up Wallpaper Changer to find the app's settings. You can choose a certain number of minutes, hours or days as your interval, set how the app resizes or crops images, opt to change the wallpaper every time you unlock your phone, and set your wallpapers to cycle through in a random order if you prefer..
Changing wallpapers on Android Using :- Wallpaper Changer 
Wallpaper Changer lets you set your schedule and adjust a few other options.
There are a couple of other settings to tweak: you need to choose the Wallpaper Changer live wallpaper as the wallpaper on your device (press and hold a blank part of the home screen to do this) [post_ad] and you have to compile a group of images via the Albums tab. If you upgrade to the Pro version of Wallpaper Changer you can manage several different albums.
Android wallpaper scheduleL:- Using IFTTT
Another way of rotating through several wallpapers on your Android device is via the always-impressive If This Then That (IFTTT). It connects apps and services together using triggers that lead to actions — and one of the supported actions is switching the background on a connected Android device.
For example, we created a Recipe to change the wallpaper on a Redmi Note 3 whenever IFTTT found a new public Instagram photo taken in a nearby city center. It's not as straightforward a solution as using a dedicated app, but it gives you a lot more flexibility when setting the routine.
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