The modern rhythm of life requires us to be constantly involved in many processes at once, and the smartphone has become the main tool for solving these problems. The ability to run multiple applications on one screen is no longer exclusive to tablets and has become a standard for Android smartphones. This feature, known as “Split Screen” or Split-screen, radically changes the approach to interaction with the device, allowing, for example, to chat in instant messenger while watching a video or transfer text from a document to the browser.
However, despite the prevalence of the technology, many users still do not know how to activate this mode or why it does not works on their device. In Google's operating system, a special component is responsible for this ActivityManager, which distributes resources between active windows. Understanding the principles of operation of this mechanism will help you avoid freezes and use the gadget as efficiently as possible, turning it into a powerful tool for work and entertainment.
In this article we will analyze in detail all the nuances of multitasking: from basic activation of the function on different firmware versions to advanced settings through the engineering menu. You'll learn how to properly allocate display space, which apps are best suited to work in pairs, and what to do if one of the windows suddenly closes. Get ready to boost your productivity by using the full potential of your Android device.
What is split screen mode and how does it work
Split screen mode is an operating system feature that allows you to display two active applications simultaneously, dividing the display into two independent areas. Unlike regular task switching, here both applications continue to run in the background but remain visible to the user. This is especially true for devices with a screen diagonal of more than 6 inches, where the area allows you to comfortably place content without severely compromising readability.
Technical implementation depends on the version Android. Since version seven (Nougat), this function has been built into the core of the system, but manufacturers often modify it through their shells. For example, Samsung calls it “Multi-Active Window”, and Xiaomi uses the term “Floating Windows” in combination with split screen. It is important to understand that resource consumption the process increases: the processor and RAM are more heavily loaded, since the system needs to render two interfaces at once.
⚠️ Attention: Working in split-screen mode significantly increases battery consumption. If you are planning a long multitasking session, make sure that the charge level is sufficient or the device is connected to a power source.
When the mode is activated, the system forcibly changes the orientation and scale of the interface elements of running apps. Some applications that are not optimized for small windows may display incorrectly or may not launch at all. In such cases, the operating system usually issues a notification that the application does not support this function, which is a normal reaction to the limitations of manifest the application itself.
Split screen mode is not just a visual effect, but a complex system feature that requires sufficient RAM for stable operation of both applications without lags.
Checking compatibility and system requirements
Before you try to activate multitasking, you need to make sure that your device is physically and software capable of this. Although the function is stated as standard for most modern smartphones, manufacturers in budget segments often artificially limit the capabilities of the firmware. This is done in order to avoid negative user experience associated with interface lags on weak hardware.
The key parameter is the amount of RAM. For comfortable operation of two “heavy” applications, such as a browser with many tabs and a navigator, it is advisable to have at least 4 GB RAM. On devices with 2 GB of memory, the system may aggressively unload a background application from memory to free up resources for the active window, which defeats the whole purpose of split screen.
- 📱 Operating system version: Split screen is officially supported starting from Android 7.0 Nougat, but in practice stable operation is observed on versions 9.0 and higher.
- 💾 Amount of free memory: to correctly cache data from two applications, free space in the internal storage is required, otherwise failures may occur.
- 🖥 Display resolution: the resolution is considered minimally comfortable
1280×720, however, for a full experience, FullHD (1920×1080) and above.
It is also worth considering the type of processor. Devices based on entry-level chipsets may not be able to handle the simultaneous processing of the GUI of two applications, which leads to a drop in frame rates (FPS). In such situations, the system can automatically block the ability to launch a second window if there is a high load on the thermal package of the device.
Hidden limitations of manufacturers
Some brands, such as Huawei or Honor in certain regions, could block the native split-screen function, replacing it with their own analogues or completely removing the possibility of multitasking for the sake of optimizing autonomy.
Standard activation methods on different versions of Android
The method for enabling split-screen mode may differ significantly depending on the version of the operating system and the installed shell. In “pure” Android, which can be found on smartphones Google Pixel, Nokia or Motorola, the algorithm of actions is as unified and predictable as possible. However, manufacturers like Samsung, Xiaomi or OnePlus often implement their own gestures and menus for managing windows.
On devices with Android 10 and later, the most common way is to use the Recent Apps menu. You need to open the application you plan to use in the top window, then go to the overview of running tasks. There, on the application card, you need to find the icon with the image of the application itself (usually at the top of the card) and click on it. In the context menu that opens, select the “Split screen” item.
☑️ Split-screen launch algorithm
An alternative method, available on many shells, involves using the multitasking panel. After launching your first app and entering task overview mode, you can simply drag the app card up or to the side (depending on your gesture settings) to pin it to the top of the screen. After this, the system will offer to select a second application from the list of recently used or from the menu of all apps.
It is worth noting that on some devices with very elongated screens (ratio 20:9 and higher), the system may by default offer to launch the second application in the “Floating Window” mode, and not in the classic split screen in half. In this case, you need to manually stretch the floating window or change its type through the multitasking menu settings to achieve the classic side-by-side look.
Interface features in Samsung, Xiaomi and Huawei shells
Electronics manufacturers strive to stand out not only with hardware, but also with software chips, so the implementation of multitasking in their firmware has unique features. Understanding these differences is critical, as standard instructions for "pure" Android may not work. Let's consider the nuances of the most popular shells.
In the shell One UI from Samsung perhaps the most advanced system for working with windows is implemented. There is the concept of the “Application Dashboard”, which is called up by swiping from the edge of the screen. From it you can drag application icons directly onto an occupied area of the screen, creating a split view. Moreover, Samsung allows you to save pairs of applications as shortcuts on the desktop to launch them together with one touch. A function is also available Pop-up viewthat allows you to open applications in floating windows on top of others.
Devices Xiaomi with a shell MIUI or HyperOS use the concept of “Sidebar”. By activating it in the settings (“Advanced settings” → “Floating windows”), you get access to a list of favorite applications that you can drag onto the screen. A special feature Xiaomi is the ability to run more than two applications simultaneously in the form of floating windows, although the classic split screen is usually limited to two active zones.
⚠️ Attention: On devices Huawei i Honor with a shell EMUI or MagicOS a specific gesture is often used to activate split-screen: swipe up from the bottom corner of the screen and hold it in the center for a second. This gesture may not be obvious to new users.
Below is a table comparing multitasking capabilities in popular shells:
| Shell | Maximum windows | Save pairs | Floating windows |
|---|---|---|---|
| One UI (Samsung) | 2 (Split) + Pop-up | Yes (App Pairs) | Yes, with scaling |
| MIUI/HyperOS (Xiaomi) | 2 (Split) + Many pop-ups | No (only through folders) | Yes, sidebar |
| ColorOS (Oppo/Realme) | 2 (Split) | Yes (Quick launch) | Yes, limited |
| Stock Android (Pixel) | 2 (Split) | No | Only in tablets |
| One UI (Samsung) | 2 (Split) + Pop-up | Yes (Pairs of applications) | Yes, with scaling |
| MIUI/HyperOS (Xiaomi) | 2 (Split) + Many pop-ups | No (only through folders) | Yes, sidebar |
| ColorOS (Oppo/Realme) | 2 (Split) | Yes (Quick launch) | Yes, limited |
| Stock Android (Pixel) | 2 (Split) | No | Only on tablets |
Management windows: resizing and fixing
After you have launched two applications, you are faced with the task of effectively managing space. By default, the system divides the screen proportionally, usually 50/50, but this ratio is rarely ideal for all scenarios. For example, when watching a video at the top and typing at the bottom, the video content requires more space while the keyboard takes up a significant area at the bottom.
To change the aspect ratio, use the center dividing line (bar) that separates the two windows. Touch it and drag it up or down (for vertical orientation) or left/right (for horizontal orientation). You will notice that the system has minimum and maximum restrictions: you will not be able to shrink the application window to the point where its content becomes unreadable. Typically, the minimum area is about 30% of the total screen space.
The Screen Pinning function, which is often confused with split screen, but which solves a different problem, deserves special attention. If you need to prevent one of the split-screen apps from being closed or minimized (for example, when handing the phone to a child to watch a cartoon), you can use the Pinning feature. To do this:
- 🔒 Open the recent applications menu.
- 🔒 Click on the application icon in split screen mode.
- 🔒 Select the “Pin” option (Pin).
- 🔒 Now you can exit this mode only by using a combination of the volume and power buttons (or long pressing the power button).
When working with documents or spreadsheets in a split screen, use the horizontal orientation of the device. This will give each app more width, which is critical for displaying columns of data.
This is normal behavior, known as onConfigurationChanged in Android developer terminology. If an app crashes when you try to resize a window, it's likely locked to a specific size and doesn't support dynamic scaling.
Advanced settings and hidden features via ADB
For users who aren't afraid to work with the command line, the operating system Android gives access to hidden multitasking settings via debug bridge ADB (Android Debug Bridge). This allows you to force split-screen mode even for those applications that do not officially support it, or change the minimum window sizes.
To use this method, you need to enable “Developer Mode” in the phone settings (tap the build number 7 times in the “About phone” section) and activate “USB Debugging”. After connecting your smartphone to your computer and installing the Android SDK platform tools, you can enter commands. For example, the command to change the minimum window width looks like this:
adb shell wm size 1080x1920However, more useful for our topic is the command to make the application think that it is running on a tablet, which often automatically enables split-screen support. You can also use the command to force the application to launch in free window mode:
adb shell am start -n com.package.name/.ActivityName --windowing-mode 1⚠️ Warning: Using ADB commands requires precision. Entering incorrect parameters may result in unstable interface operation, image distortion, or the need to reset the system settings. You perform all actions at your own peril and risk.
There are also specialized applications from the store Google Play, such as Split Screen Shortcut or Taskbar, which create widgets for quickly launching any applications in split-screen mode without having to go to the recent tasks menu every time. These utilities essentially execute the same ADB commands, but through a graphical interface, which is more convenient for everyday use.
Using ADB commands is a powerful tool for advanced users to bypass manufacturers' software limitations, but it requires caution and an understanding of the Android package structure.
Common problems and how to solve them
Despite the well-functioning mechanism, users often encounter problems when working in two-window mode. The most common of them is the spontaneous closing of one of the applications. This happens when the system does not have enough RAM (RAM). Android aggressively manages memory, killing background processes to ensure the smooth operation of the active foreground application.
Another problem is the incorrect display of the interface: buttons can go off the screen, text overlaps each other, and the keyboard covers half the usable space. This indicates poor optimization of a particular application for the mode multi-window. In such cases, only waiting for an update from the developer or using an alternative application with better adaptability helps.
If split screen is unstable, try the following steps:
- 🔄 Reboot the device: this will clear the system cache and free up locked memory.
- 🧹 Clear the cache of the problematic application through the settings (“Applications” → “Select an application” → “Storage” → “Clear cache”)
- 📉 Reduce the number of widgets and live wallpapers, which also consume resources.
It is also worth checking your energy saving settings. In Maximum Power Saver mode, the system frequently blocks background activity and multitasking to extend battery life. Switching to “Performance” or “Balanced” mode can solve the problem with application crashes.
Why does the keyboard overlap the window?
In some versions of Android, when you open the keyboard in the lower window, the system does not reduce the height of this window, but simply overlaps it. This is an implementation bug that can be fixed by updating the system or using third-party keyboards that support split-screen mode.
Is it possible to run two identical applications (for example, two WhatsApp) in a split screen?
The native Android operating system does not allow you to run two instances of the same application at the same time, even in a split screen. This requires the “App Cloning” function (Dual Apps, App Twin), which is built into shells Samsung, Xiaomi, Huawei. If your phone doesn't support cloning, you can use third-party container apps like Parallel Spacethat create a virtual environment to run a second copy.
Why does the video in the top window stop when I type in the bottom?
This behavior depends on the app itself. Many video players and streaming services (YouTube, Netflix) pause playback if they lose input focus or if the system believes that the user has switched attention. In the settings of some players there is an option “Play in the background” or “Picture in Picture”, which should be activated. This may also be due to aggressive battery optimization.
Does split-screen mode affect Internet speed?
Yes, it does indirectly. If both active applications require a constant connection (for example, downloading a file in one window and streaming a video in another), the available channel bandwidth is divided between them. This may result in video buffering or slow downloads. However, the Split-screen mode itself does not “cut” the speed, it simply creates competition for traffic.
How to exit split-screen mode?
There are several ways. The simplest is to drag the central dividing line all the way towards one of the applications, completely blocking the second. You can also press the Home button or swipe up from the bottom (depending on your navigation type) to minimize both apps. In the recent tasks menu, you can simply swipe the card of one of the applications, and the remaining one will expand to full screen.
Does split screen work on all versions of Android?
Formally, support was announced with Android 7.0, but on versions 7.0–9.0 the implementation could be different and less stable. On Android 10 and higher, the feature has become standard. However, even on the new Android 14, the device manufacturer can programmatically disable this function on budget models with a small amount of RAM.