picker box update

lib/pickers/as_picker_box.dart

@@ -48,27 +48,22 @@ class ASPickerBox extends StatelessWidget {
           children: [
             SizedBox(
               height: 48.w,
-              child: Row(
+              child: NavigationToolbar(
-                crossAxisAlignment: CrossAxisAlignment.stretch,
+                leading: _buildButton(
-                children: [
+                  title: '取消',
-                  _buildButton(
+                  onPressed: () => Navigator.pop(context),
-                      title: '取消',
+                ),
-                      onPressed: () {
+                middle: Text(
-                        Navigator.pop(context);
+                  title ?? '',
-                      }),
+                  style: TextStyle(
-                  Expanded(
+                    color: kTextColor,
-                    child: Center(
+                    fontSize: 16.sp,
-                      child: Text(
-                        title ?? '',
-                        style: TextStyle(
-                          color: kTextColor,
-                          fontSize: 16.sp,
-                        ),
-                      ),
-                    ),
                   ),
-                  _buildButton(title: confirmString, onPressed: onPressed),
+                ),
-                ],
+                trailing: _buildButton(
+                  title: confirmString,
+                  onPressed: onPressed,
+                ),
               ),
             ),
             ASDivider(),

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