✨ feature/previous_next_function_added

SimformSolutionsPvtLtd · Mar 4, 2022 · 020ab28 · 020ab28
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commit 020ab28
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -5,6 +5,8 @@
 - Fixed [#121](https://github.com/SimformSolutionsPvtLtd/flutter_showcaseview/issues/121) - SlideTransition widget in tooltip_widget.dart is constantly rebuildung even after the showcasing is supposed to have stopped
 - Fixed [#152](https://github.com/SimformSolutionsPvtLtd/flutter_showcaseview/issues/152) - Calculation of tooltip position
 - Fixed [#182](https://github.com/SimformSolutionsPvtLtd/flutter_showcaseview/issues/182) - Not providing blurValue causes Exception: Please provide ShowCaseView context
+- Fixed [#162](https://github.com/SimformSolutionsPvtLtd/flutter_showcaseview/issues/162) - Add feature to move back
+- Fixed [#181](https://github.com/SimformSolutionsPvtLtd/flutter_showcaseview/issues/181) - Add feature to go to previous item
 
 ## [1.1.4] - November 26, 2021
 

diff --git a/README.md b/README.md
@@ -113,6 +113,20 @@ ShowCaseWidget(
 ),
 ```
 
+8. Go to next `ShowCase`
+```dart
+someEvent(){
+  ShowCaseWidget.of(context).next();
+}
+```
+
+9. Go to previous `ShowCase`
+```dart
+someEvent(){
+  ShowCaseWidget.of(context).previous();
+}
+```
+
 If you want to start the `ShowCaseView` as soon as your UI built up then use below code.
 
 ```dart

diff --git a/lib/src/showcase_widget.dart b/lib/src/showcase_widget.dart
@@ -114,6 +114,39 @@ class ShowCaseWidgetState extends State<ShowCaseWidget> {
     }
   }
 
+  void next() {
+    if (ids != null && mounted) {
+      setState(() {
+        _onComplete();
+        activeWidgetId = activeWidgetId! + 1;
+        _onStart();
+
+        if (activeWidgetId! >= ids!.length) {
+          _cleanupAfterSteps();
+          if (widget.onFinish != null) {
+            widget.onFinish!();
+          }
+        }
+      });
+    }
+  }
+
+  void previous() {
+    if (ids != null && ((activeWidgetId ?? 0) - 1) >= 0 && mounted) {
+      setState(() {
+        _onComplete();
+        activeWidgetId = activeWidgetId! - 1;
+        _onStart();
+        if (activeWidgetId! >= ids!.length) {
+          _cleanupAfterSteps();
+          if (widget.onFinish != null) {
+            widget.onFinish!();
+          }
+        }
+      });
+    }
+  }
+
   void dismiss() {
     if (mounted) {
       setState(_cleanupAfterSteps);