1. Import

lib/popups/infos_popup.dart

@@ -0,0 +1,56 @@
+import 'package:flutter/material.dart';
+import 'package:kumi_popup_window/kumi_popup_window.dart';
+
+void showInfosPopup(BuildContext context) {
+  showPopupWindow(
+    context,
+    //childSize:Size(240, MediaQuery.of(context).size.width * 0.8),
+    gravity: KumiPopupGravity.center,
+    //curve: Curves.elasticOut,
+    bgColor: Colors.grey.withOpacity(0.5),
+    clickOutDismiss: true,
+    clickBackDismiss: true,
+    customAnimation: false,
+    customPop: false,
+    customPage: false,
+    // targetRenderBox: (btnKey.currentContext.findRenderObject() as RenderBox),
+    //needSafeDisplay: true,
+    underStatusBar: false,
+    underAppBar: false,
+    //offsetX: -180,
+    //offsetY: 50,
+    duration: const Duration(milliseconds: 200),
+    onShowStart: (pop) {},
+    onShowFinish: (pop) {},
+    onDismissStart: (pop) {},
+    onDismissFinish: (pop) {},
+    onClickOut: (pop) {},
+    onClickBack: (pop) {},
+    childFun: (pop) {
+      return SizedBox(
+          key: GlobalKey(),
+          height: MediaQuery.of(context).size.height * 0.6,
+          width: MediaQuery.of(context).size.width * 0.8,
+          child: Container(
+            height: 100,
+            decoration: BoxDecoration(
+              borderRadius: BorderRadius.circular(10),
+              color: Colors.red,
+              border: Border.all(
+                color: Colors.grey,
+                width: 0.5,
+              ),
+            ),
+            child: Padding(
+              padding: const EdgeInsets.all(12.0),
+              child: Column(
+                children: const [
+                  Text('Dies sind die Infos\nBla')
+                ],
+              ),
+            ),
+        )
+      );
+    },
+  );
+}