Allow setting a size constraint for DrawerHeader
This would allow the header to be flexible and respond to font size changes for example.
diff --git a/packages/flutter/lib/src/material/drawer_header.dart b/packages/flutter/lib/src/material/drawer_header.dart
index 9383cf7..cb496d9 100644
--- a/packages/flutter/lib/src/material/drawer_header.dart
+++ b/packages/flutter/lib/src/material/drawer_header.dart
@@ -33,6 +33,7 @@
const DrawerHeader({
Key key,
this.decoration,
+ this.constraints,
this.margin = const EdgeInsets.only(bottom: 8.0),
this.padding = const EdgeInsets.fromLTRB(16.0, 16.0, 16.0, 8.0),
this.duration = const Duration(milliseconds: 250),
@@ -48,6 +49,14 @@
/// If this is changed, it will be animated according to [duration] and [curve].
final Decoration decoration;
+ /// Size constraints for the header.
+ ///
+ /// By default, the drawer header will be adhering to standard size
+ /// recommendations by the Material Design spec, which is a fixed height.
+ ///
+ /// Changing the constraints allows for a flexible height, for example.
+ final BoxConstraints constraints;
+
/// The padding by which to inset [child].
///
/// The [DrawerHeader] additionally offsets the child by the height of the
@@ -80,7 +89,9 @@
final ThemeData theme = Theme.of(context);
final double statusBarHeight = MediaQuery.of(context).padding.top;
return Container(
- height: statusBarHeight + _kDrawerHeaderHeight,
+ constraints: constraints ??
+ BoxConstraints.tightFor(
+ height: statusBarHeight + _kDrawerHeaderHeight),
margin: margin,
decoration: BoxDecoration(
border: Border(
@@ -92,14 +103,16 @@
decoration: decoration,
duration: duration,
curve: curve,
- child: child == null ? null : DefaultTextStyle(
- style: theme.textTheme.bodyText1,
- child: MediaQuery.removePadding(
- context: context,
- removeTop: true,
- child: child,
- ),
- ),
+ child: child == null
+ ? null
+ : DefaultTextStyle(
+ style: theme.textTheme.bodyText1,
+ child: MediaQuery.removePadding(
+ context: context,
+ removeTop: true,
+ child: child,
+ ),
+ ),
),
);
}
