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Mention visualDensity impact on ButtonStyle.padding documentation (#147048)

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## Description

This PR adds some information about how the Material buttons padding is impacted by visual density.

## Related Issue

Fixes https://github.com/flutter/flutter/issues/137411

## Tests

Documentation only.
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Bruno Leroux 2024-04-23 10:15:53 +02:00 committed by GitHub
parent 1f59013c65
commit e9926c4848
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packages/flutter/lib/src/material/button_style.dart
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@ -210,6 +210,25 @@ class ButtonStyle with Diagnosticable {
final MaterialStateProperty<double?>? elevation;
/// The padding between the button's boundary and its child.
///
/// The vertical aspect of the default or user-specified padding is adjusted
/// automatically based on [visualDensity].
///
/// When the visual density is [VisualDensity.compact], the top and bottom insets
/// are reduced by 8 pixels or set to 0 pixels if the result of the reduced padding
/// is negative. For example: the visual density defaults to [VisualDensity.compact]
/// on desktop and web, so if the provided padding is 16 pixels on the top and bottom,
/// it will be reduced to 8 pixels on the top and bottom. If the provided padding
/// is 4 pixels, the result will be no padding on the top and bottom.
///
/// When the visual density is [VisualDensity.comfortable], the top and bottom insets
/// are reduced by 4 pixels or set to 0 pixels if the result of the reduced padding
/// is negative.
///
/// When the visual density is [VisualDensity.standard] the top and bottom insets
/// are not changed. The visual density defaults to [VisualDensity.standard] on mobile.
///
/// See [ThemeData.visualDensity] for more details.
final MaterialStateProperty<EdgeInsetsGeometry?>? padding;
/// The minimum size of the button itself.