How to expand the keyboard on Xiaomi phone: the complete guide

Xiaomi smartphone owners often face a situation where the standard size of the keyboard seems not convenient enough for fast printing. Too small buttons or narrow input fields can lead to permanent typos, especially if the user has thumbs or is used to typing on large-screen tablets. MIUI operating system and its new version of HyperOS have powerful customization tools that allow you to adapt the interface to your personal needs.

However, simply going to the settings and finding the slider "keyboard width" will not work, because this option is often not explicitly available. Expanding the workspace is achieved by a comprehensive approach: by changing the system fonts, adjusting the parameters of a particular input application and using special display modes. Understanding how the Gboard or Xiaomi Keyboard responds to system changes will help you achieve the perfect result.

In this article, we will take a closer look at all the available methods for increasing the size of buttons and input fields, and you will learn to combine system settings and third-party applications to turn printing on a smartphone into a comfortable process.

The impact of system fonts on the size of the MIUI keyboard

The most effective and often ignored way to resize the keyboard on Xiaomi devices is to work with system fonts. The logic behind the MIUI shell is that the character size on the virtual keyboard is directly dependent on the type size you choose throughout the system, and by zooming in on this parameter, you automatically make the buttons higher and wider.

To implement this method, you need to go to the settings menu of your device. Find the Screen section, then select Text Size. Moving the slider to the right, you will see how the font size changes in the preview. However, on the keyboard, changes can only become noticeable after you apply a certain font style or reboot the device.

⚠️ Warning: Excessively increasing the size of the system font can cause text in some applications to go beyond the screen or overlap with other interface elements, making them unreadable.

It's worth noting that a standard Roboto or MIUI Font font can look unaesthetic when zoomed in at maximum, and you can find special fonts in Themes' theme store that retain clarity and are better suited for printing as you zoom in, allowing you to expand the useful area of the buttons without losing the quality of the symbol image.

This is the most stable method, because it doesn't require any additional software to be installed. It works at the kernel level of the display system, so it's compatible with all applications that use the system keyboard. If your goal is to make the buttons bigger, rather than changing the height of the input bar, this is the best option.

Altitude and layout setting in Gboard

Most Xiaomi users default to Google’s Gboard keyboard, which offers flexible geometry settings. Unlike the system keyboard, you can adjust the keyboard height regardless of the system fonts, giving you more freedom in setting up the interface.

To access these settings, open any application that requires text input and call the keyboard. Click on the gear icon or go through the phone's Settings to Additional Settings → Language and input → Keyboard Management. Select Gboard and find Settings.

Inside the settings menu, you'll need Preferences or Settings (depending on the version of the app), where you'll find Keyboard Height. The following zoom options are available:

• 📏 Very small – minimum height, useful for devices with small screens.
• 📐 Small – standard for compact models of the Redmi Note series.
• ⚖️ Average – balance between button size and content visibility.
• 📏 Big – the best choice for those who want to expand the area of pressing.
• 📏 Very large – maximum expansion, takes up almost half of the screen.

Changing this parameter is instantly applicable to the current layout. It is important to understand that increasing the height of the keyboard in Gboard makes the rows of buttons higher, but does not necessarily change their width.

Use of separation mode and floating window

If by extension you mean being able to type with one hand on a large screen, standard sizing techniques may not be enough, and in these cases, split keyboard and floating window modes come to the rescue, which do not increase the physical size of the pixels, but change the logic of the buttons, making them more accessible.

Split mode is especially relevant for owners of Xiaomi Mi Max series phablets or modern flagships with a diagonal of more than 6.5 inches. When activated, the keyboard is divided into two parts that shift to the edges of the screen, which visually “expands” the space between the halves and allows you to cover the device with the fingers of one hand.

Activation is done through the keyboard settings menu. In Gboard, you need to press and hold a comma or emoji button to call the additional features menu, and select the separation icon. In the Xiaomi system keyboard, a similar option is in the Settings → Input Modes menu.

⚠️ Attention: In landscape mode (horizontal orientation), the keyboard automatically stretches across the entire width of the screen, which greatly increases the size of each button. If you need to type large amounts of text, just turn the phone.

The floating window allows you to move the keyboard to any part of the screen and resize it with a special slider, which gives you the unique ability to manually stretch the keyboard to the proportions you want, virtually ignoring the standard layout grids, you can make it narrow and tall or wide and low, depending on your personal preferences.

Comparison of system keyboard and third-party analogues

Choosing the typewriter software plays a critical role in the comfort of a smartphone. Xiaomi's standard keyboard (Sogou or Baidu in some regions) has deep shell integration, but often yields in size adjustment flexibility to third-party solutions.

Consider the main differences in the possibilities of expanding the interface between popular solutions:

If your main goal is to customize the size and shape of the buttons, Microsoft SwiftKey can be a great alternative, which allows you not only to change the height, but also adjust the distance between the buttons and their rounding, which visually expands the workspace.

The good thing about the system keyboard is that it knows better about system fonts than anyone else. When you change the font size in MIUI settings, it is the native keyboard that adapts most harmoniously, keeping the proportions set by the interface designers. Third-party applications can ignore the system zoom settings.

Advanced customization through ADB and hidden menus

For power users who are not satisfied with standard sliders, it is possible to fine-tune the input parameters through the Android Debug Bridge (ADB) debugging, which allows you to change the hidden system variables responsible for the density of the interface and the specific size of the keyboard elements.

Before you start, activate the developer mode. Go to Settings → About Phone and quickly click 7 times on the MIUI Version or OS Version. Then in the Additional → For developers, turn on USB Debugging.

By connecting your phone to your computer, you can use commands to change the density of the DPI (dots per inch). Reducing the DPI makes the system think that the screen is higher resolution, making all elements, including the keyboard, smaller. Conversely, increasing the DPI (for example, from 411 to 480) will visually expand all interface elements.

adb shell wm density 480

This command will set the pixel density to 480. Once it is run, the interface will become larger and the keyboard will expand proportionally. To get it back, use the command adb shell wm density reset.

⚠️ Note: Do not set extreme density values (above) 600-700), As this can make the interface unstable, some system buttons may disappear outside the screen and the phone will have to be reset before factory settings.

Also in the hidden developer menus, there's the Minimum Width option, and by changing it, you get the same effect as changing the DPI, but without having to use the computer after you first set it up, which is in the Drawing of the Developer Menu section.

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Before changing system parameters through ADB, be sure to write down the current density (adb shell wm density command) to be able to quickly return everything as it was in case of errors.

Optimizing screen space for comfortable printing

Keyboard expansion is not only about increasing buttons, but also about managing screen space wisely. On modern Xiaomi smartphones with cutouts and high aspect ratios, it is important to adjust the display correctly so that the keyboard does not overlap the content and is large enough.

In the Screen settings, look at the Size of UI elements. In newer versions of HyperOS, it's separated from the font size. By increasing that, you make all the controls, including input fields and toolbars, larger and more pressable.

Also worth considering is the use of the Dark Theme. Although it doesn't change physical size, contrast in dark mode often makes the boundaries of the keyboard clearer, making it visually easier to perceive the size of the buttons. In Settings → Themes, you can find designs where the keys occupy 90-95% of the width of the screen.

Don't forget the One-Hand Mode feature, which is designed to shrink the screen, but when combined with a larger font, it can have an interesting effect: the screen is smaller, the scale is maintained, and the fingers reach the extended buttons without having to reach across the entire display.

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The combination of increasing the system font and selecting the "high altitude" mode in Gboard gives the maximum effect of expanding the keyboard without losing the stability of the system.

Frequently Asked Questions (FAQ)