chore: add Issue189 reproducer and nodefaultbouncing.riv from fix/android-auto-databind

Author: mfazekas

example/src/reproducers/Issue189.tsx

@@ -0,0 +1,68 @@
+/**
+ * Reproducer for https://github.com/rive-app/rive-nitro-react-native/issues/189
+ *
+ * [Android] Rive files that have ViewModels but no default ViewModel for the
+ * artboard freeze when dataBind is not explicitly set (defaults to Auto).
+ *
+ * Root cause: in Auto mode Android checks viewModelCount > 0 and passes
+ * autoBind=true to setRiveFile. The Rive SDK then throws
+ * "No default ViewModel found for artboard" when the artboard has no default
+ * ViewModel assigned, which freezes the animation.
+ *
+ * Fix: don't use SDK-level autoBind for Auto mode. Let bindToStateMachine
+ * handle it — it already catches ViewModelException gracefully.
+ *
+ * Marketplace: https://rive.app/community/files/27026-50856-no-default-vm-for-artboard/
+ *
+ * Expected: bouncing animation plays on both platforms
+ * Actual (Android, unfixed): animation freezes, ViewModelInstanceNotFound error
+ */
+
+import { View, StyleSheet, Text } from 'react-native';
+import { RiveView, useRiveFile } from '@rive-app/react-native';
+import { type Metadata } from '../shared/metadata';
+
+export default function Issue189Page() {
+  const { riveFile, error } = useRiveFile(
+    require('../../assets/rive/nodefaultbouncing.riv')
+  );
+
+  return (
+    <View style={styles.container}>
+      {error != null && (
+        <Text style={styles.errorText}>Error: {String(error)}</Text>
+      )}
+      {riveFile && (
+        <RiveView
+          file={riveFile}
+          autoPlay={true}
+          // No dataBind prop — defaults to Auto. On Android (unfixed) this
+          // triggers "No default ViewModel found for artboard" and freezes.
+          style={styles.rive}
+        />
+      )}
+    </View>
+  );
+}
+
+Issue189Page.metadata = {
+  name: 'Issue #189',
+  description:
+    '[Android] Animation with ViewModels but no artboard default freezes in Auto dataBind mode',
+} satisfies Metadata;
+
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+    backgroundColor: '#fff',
+  },
+  errorText: {
+    color: 'red',
+    textAlign: 'center',
+    padding: 8,
+  },
+  rive: {
+    flex: 1,
+    width: '100%',
+  },
+});