![Tier 3 large screen ready icon](https://developer.android.com/static/images/guide/topics/large-screens/quality-guidelines/tier-2/tier_2_icon.png)

TIER 2 --- Large screen optimized
| **Objective:** Make your app [large screen optimized](https://developer.android.com/docs/quality-guidelines/large-screen-app-quality#large_screen_optimized) by meeting the [LS-I3](https://developer.android.com/docs/quality-guidelines/large-screen-app-quality#LS-I3) through [LS-I9](https://developer.android.com/docs/quality-guidelines/large-screen-app-quality#LS-I9) keyboard, mouse, and trackpad requirements of the [Large
| screen app quality](https://developer.android.com/docs/quality-guidelines/large-screen-app-quality) guidelines.

Apps optimized for large screen devices provide an enhanced,
accessibility‑compliant user experience by supporting advanced keyboard,
mouse, and trackpad input capabilities, including:

- Keyboard navigation using the <kbd>Tab</kbd> and arrow keys
- Keyboard shortcuts for actions such as select, cut, copy, paste, undo, and redo
- Keyboard control of media playback, such as using the <kbd>Spacebar</kbd> to play and pause media
- Keyboard *send* function in communication apps using the <kbd>Enter</kbd> key
- Options menus accessible by mouse and trackpad right‑click behavior (secondary mouse button or secondary tap)
- App content zoom (magnification) using trackpad pinch gestures and the mouse scroll wheel with the <kbd>Ctrl</kbd> or <kbd>Control</kbd> key
- Hover states for interactive UI elements

## Next steps

For more information about how to optimize your app's input capabilities, see:

- [Input compatibility on large screens --- Compose](https://developer.android.com/develop/ui/compose/touch-input/input-compatibility-on-large-screens)
- [Input compatibility on large screens --- views](https://developer.android.com/develop/ui/views/touch-and-input/input-compatibility-on-large-screens)
- [Input compatibility on ChromeOS](https://chromeos.dev/en/android/input-compatibility)
- [Build accessible apps](https://developer.android.com/guide/topics/ui/accessibility)