Created
August 24, 2022 09:49
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| class MyMetaData { | |
| // Whatever you want | |
| } | |
| // In the hit test target, e.g. drag target | |
| return MyParentTree( | |
| child: MetaData( | |
| metaData: MyMetaData(...), | |
| child: MyChildTree(), | |
| ), | |
| ); | |
| // In the callback where you hit test; e.g. in the drag update | |
| final hitTestRect = getHitTestRectFromSomewhere(); | |
| final HitTestResult r = HitTestResult(); | |
| WidgetsBinding.instance?.hitTest(r, hitTestRect); | |
| for (final HitTestEntry hte in r.path) { | |
| final target = hte.target; | |
| if (target is RenderMetaData) { | |
| final metaData = target.metaData; | |
| if (metaData is MyMetaData) { | |
| // Do stuff with the found MyMetaData | |
| // E.g. trigger the drop to the target | |
| } | |
| } | |
| } |
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