process #253

Author: xdd666t

CHANGELOG.md

@@ -9,6 +9,7 @@
 * Add AdjustBuilder
 * Fix [#229](https://github.com/fluttercandies/flutter_smart_dialog/issues/229), [#235](https://github.com/fluttercandies/flutter_smart_dialog/issues/235)
 * Fix [#248](https://github.com/fluttercandies/flutter_smart_dialog/issues/248)
+* Fix [#253](https://github.com/fluttercandies/flutter_smart_dialog/issues/253)
 
 * # [4.9.7+x]
 * optimize bindWidget, when bindWidget is not null, bindPage will be automatically set to false.

example/lib/main.dart

@@ -111,7 +111,7 @@ class SmartDialogPage extends StatelessWidget {
       SmartDialog.showAttach(
         targetContext: context,
         alignment: Alignment.bottomCenter,
-        animationType: SmartAnimationType.scale,
+        animationType: SmartAnimationType.centerScale_otherSlide,
         builder: (_) {
           return Container(height: 50, width: 30, color: Colors.red);
         },

lib/src/widget/helper/attach_widget.dart

@@ -136,8 +136,8 @@ class _AttachWidgetState extends State<AttachWidget>
     _originChild = widget.originChild;
     _postFrameOpacity = 0;
 
-    if (widget.targetContext != null) {
-      final renderBox = widget.targetContext!.findRenderObject() as RenderBox;
+    final renderBox = widget.targetContext?.findRenderObject() as RenderBox?;
+    if (renderBox != null) {
       targetOffset = renderBox.localToGlobal(Offset.zero);
       targetSize = renderBox.size;
     }

lib/src/widget/helper/toast_helper.dart

@@ -32,9 +32,11 @@ class _ToastHelperState extends State<ToastHelper> with WidgetsBindingObserver {
     ViewUtils.addSafeUse(() {
       if (!mounted) return;
 
-      final renderBox = _childContext!.findRenderObject() as RenderBox;
-      selfOffset = renderBox.localToGlobal(Offset.zero);
-      selfSize = renderBox.size;
+      final renderBox = _childContext?.findRenderObject() as RenderBox?;
+      if (renderBox != null) {
+        selfOffset = renderBox.localToGlobal(Offset.zero);
+        selfSize = renderBox.size;
+      }
       _dealKeyboard();
     });
     super.initState();

pubspec.yaml

@@ -3,7 +3,7 @@ description:
   An elegant Flutter Dialog solution,
   Easily implement Toast, Loading and custom Dialog,
   Make the use of the dialog easier!
-version: 4.9.8+6
+version: 4.9.8+7
 homepage: https://github.com/fluttercandies/flutter_smart_dialog
 # flutter pub publish --server=https://pub.dartlang.org
 # flutter build web --release --base-href="/flutter_smart_dialog/web/"