The recommended target size for touchscreen objects is 7-10mm.įor examples, refer to the Material Design Accessibility guidelines. A touch target of 48x48dp results in a physical size of about 9mm, regardless of screen size. Touch targets extend beyond the visual bounds of an element: An element like an icon may appear to be 24x24dp but the padding surrounding it comprises the full 48x48dp touch target.Ĭonsider making touch targets at least 48x48dp, separated by 8dp of space or more, to ensure balanced information density and usability. Touch targets include the area that responds to user input. On earlier Android versions, touch target size results may appear even when this API is used to enlarge touch targets to an appropriate size. Note: Accessibility Scanner can detect and account for the use of TouchDelegate only when running on Android 10 and later. To retain the original size of a View while expanding its touchable region, consider using a TouchDelegate, which allows a parent layout to handle touch events on behalf of the descendant View.
If these controls are sized dynamically, or resize based on the size of their content, consider using android:minWidth and android:minHeight to set a lower bound on their dimensions. When implementing clickable or touchable elements in a layout, consider using dimensions that meet or exceed the recommended size for touch targets. Consider making sure these elements have a width and height of at least 48dp, as described in the Material Design Accessibility guidelines. Any on-screen element that someone can click, touch, or otherwise interact with should be large enough for reliable interaction.
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