picker box update

lib/pickers/as_picker_box.dart

@@ -48,28 +48,23 @@ class ASPickerBox extends StatelessWidget {
           children: [
             SizedBox(
               height: 48.w,
-              child: Row(
-                crossAxisAlignment: CrossAxisAlignment.stretch,
-                children: [
-                  _buildButton(
+              child: NavigationToolbar(
+                leading: _buildButton(
                   title: '取消',
-                      onPressed: () {
-                        Navigator.pop(context);
-                      }),
-                  Expanded(
-                    child: Center(
-                      child: Text(
+                  onPressed: () => Navigator.pop(context),
+                ),
+                middle: Text(
                   title ?? '',
                   style: TextStyle(
                     color: kTextColor,
                     fontSize: 16.sp,
                   ),
                 ),
+                trailing: _buildButton(
+                  title: confirmString,
+                  onPressed: onPressed,
                 ),
               ),
-                  _buildButton(title: confirmString, onPressed: onPressed),
-                ],
-              ),
             ),
             ASDivider(),
             Expanded(child: child),

lib/utils/camera_util.dart

@@ -15,10 +15,12 @@ Future<File> camFile({double maxHeight = 3000, double maxWidth = 3000}) async {
   return File(pickedFile.path);
 }
 
-Future<File> camView(BuildContext context,
-    {double maxHeight = 3000,
+Future<File> camView(
+  BuildContext context, {
+  double maxHeight = 3000,
   double maxWidth = 3000,
-    @required String title}) async {
+  @required String title,
+}) async {
   File file = await camFile(maxHeight: maxHeight, maxWidth: maxWidth);
   if (file == null) return null;
   return await Navigator.push(context, PageRouteBuilder(