Migrate to the New Material Buttons (#668)

animations/lib/src/basics/01_animated_container.dart

@@ -69,7 +69,7 @@ class _AnimatedContainerDemoState extends State<AnimatedContainerDemo> {
                 ),
               ),
             ),
-            RaisedButton(
+            ElevatedButton(
               child: Text(
                 'change',
               ),

animations/lib/src/basics/02_page_route_builder.dart

@@ -14,7 +14,7 @@ class PageRouteBuilderDemo extends StatelessWidget {
         title: Text('Page 1'),
       ),
       body: Center(
-        child: RaisedButton(
+        child: ElevatedButton(
           child: Text('Go!'),
           onPressed: () {
             Navigator.of(context).push<void>(_createRoute());

animations/lib/src/basics/03_animation_controller.dart

@@ -68,7 +68,7 @@ class _AnimationControllerDemoState extends State<AnimationControllerDemo>
                 textScaleFactor: 1 + controller.value,
               ),
             ),
-            RaisedButton(
+            ElevatedButton(
               child: Text('animate'),
               onPressed: () {
                 if (controller.status == AnimationStatus.completed) {

animations/lib/src/basics/04_tweens.dart

@@ -51,7 +51,7 @@ class _TweenDemoState extends State<TweenDemo>
               child: Text('\$${animation.value.toStringAsFixed(2)}',
                   style: TextStyle(fontSize: 24)),
             ),
-            RaisedButton(
+            ElevatedButton(
               child: Text(
                 controller.status == AnimationStatus.completed
                     ? 'Buy a Mansion'

animations/lib/src/basics/08_fade_transition.dart

@@ -61,7 +61,7 @@ class _FadeTransitionDemoState extends State<FadeTransitionDemo>
                 size: 300,
               ),
             ),
-            RaisedButton(
+            ElevatedButton(
               child: Text('animate'),
               onPressed: () => setState(() {
                 _controller.animateTo(1.0).then<TickerFuture>(

animations/lib/src/misc/card_swipe.dart

@@ -59,7 +59,7 @@ class _CardSwipeDemoState extends State<CardSwipeDemo> {
                   ),
                 ),
               ),
-              RaisedButton(
+              ElevatedButton(
                 child: const Text('Refill'),
                 onPressed: () {
                   setState(() {

animations/lib/src/misc/curved_animation.dart

@@ -146,7 +146,7 @@ class _CurvedAnimationDemoState extends State<CurvedAnimationDemo>
             ),
           ),
           SizedBox(height: 25.0),
-          RaisedButton(
+          ElevatedButton(
             onPressed: () {
               controller.forward();
             },