Merge pull request #40 from line/fix/warning

Fix warning in example project

Author: onevdog

Diff for: example/lib/src/screen/home_page.dart

@@ -60,13 +60,11 @@ class _HomePageState extends State<HomePage>
             _configCard(),
             Expanded(
               child: Center(
-                child: RaisedButton(
-                  textColor: textColor,
-                  color: accentColor,
-                  onPressed: _signIn,
-                  child: Text('Sign In'),
-                ),
-              ),
+                  child: ElevatedButton(
+                      child: Text('Sign In'),
+                      onPressed: _signIn,
+                      style: ElevatedButton.styleFrom(
+                          primary: accentColor, onPrimary: textColor))),
             ),
           ],
         ),
@@ -183,12 +181,12 @@ class _HomePageState extends State<HomePage>
         return AlertDialog(
           content: Text(text),
           actions: <Widget>[
-            FlatButton(
-              child: Text('Close'),
-              onPressed: () {
-                Navigator.of(context).pop();
-              },
-            ),
+            TextButton(
+                child: Text('Close'),
+                onPressed: () {
+                  Navigator.of(context).pop();
+                },
+                style: TextButton.styleFrom(primary: accentColor)),
           ],
         );
       },

Diff for: example/lib/src/widget/user_info_widget.dart

@@ -31,18 +31,18 @@ class UserInfoWidget extends StatelessWidget {
               : Icon(Icons.person),
           Text(
             userProfile.displayName,
-            style: Theme.of(context).textTheme.headline,
+            style: Theme.of(context).textTheme.headline5,
           ),
           if (userEmail != null) Text(userEmail!),
           Text(userProfile.statusMessage!),
           Container(
-            child: RaisedButton(
-              textColor: textColor,
-              color: accentColor,
-              child: Text('Sign Out'),
-              onPressed: onSignOutPressed as void Function()?,
-            ),
-          ),
+              child: ElevatedButton(
+                  child: Text('Sign Out'),
+                  onPressed: () {
+                    onSignOutPressed.call();
+                  },
+                  style: ElevatedButton.styleFrom(
+                      primary: accentColor, onPrimary: textColor))),
         ],
       ),
     );