Split Screen

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Pro Tips

Enable force split-screen

Some apps like Facebook Messenger, LINE, and Google Duo don’t support split-screen mode. To force them to allow split-screen mode:

  1. enable developer settings on the phone if it isn’t already.
  2. open Android’s Settings app.
  3. enable the System > Developer options > Force activities to be re-sizable option. (it should be at the very bottom…)
  4. restart the phone.
  5. done! split-screen mode should work on tons more apps now.

Unfortunately, some apps like Instagram may crash if put into split-screen mode. And other apps like the homescreen, and Google Assistant still disallow split-screen mode.

Change long press duration

To change the long press duration:

  1. open Android’s Settings app.
  2. go to: Accessibility > Touch & hold delay.

Frequently Asked Questions

Why does only of the split screen work at a time, and the other gets paused?, can both be running at the same time?

Unfortunately this behaviour is out of Split Screen’s. It’s a limitation of Android’s split screen mode where only the last-touched-app is allowed to be fully active. https://developer.android.com/guide/topics/ui/multi-window#lifecycle

Why isn’t Split screen working on the home screen?

An app must be open before split-screen mode can be activated. (e.g. YouTube)

Why am I getting “App does not support split screen” message?

See Enable force split-screen.

Why is split-screen mode turning on then off right away?

Some phones already come with a split-screen shortcut; this app, and the system shortcut could be interfering with each other. Go into the Split Screen app’s settings, and turn off the trigger that’s causing this issue. Alternatively, uninstall the Split Screen app.

Why does the accessibility service keep turning off by itself?

This happens because of overly aggressigve “battery optimization”. Split Screen has no control over this. On most devices, you can disable app optimization for Split Screen in Android’s Settings to stop it from disabling the accessibility service. This is usually found in Settings > Battery, and sometimes in Apps & Notifications > Special app access > Battery optimization.

How do I use my home button to toggle split screen mode?
Why does it act so buggy when I try to use the “Long press on…“ > “Home” option?

Many phones have a default action pre-bound to long pressing the home button (e.g. Google Assistat). This interfere’s with Split Screen Shortcut.

To properly set up the home button option:

  1. Disable the Assist app
    • Go to your Android’s Settings > Apps & notifications > Default apps > Assist & voice input > Assist app > choose None
  2. Enable toggling split-screen mode using your home button.
    • Go to Split Screen Shortcut > Long press on… > enable Home
  3. Done! Enjoy glitch-free multitasking!