fix: handle swap returning void in native SDKs, fix listeners lambda

Author: mfazekas

android/src/main/java/com/margelo/nitro/rive/HybridViewModelListProperty.kt

@@ -47,11 +47,17 @@ class HybridViewModelListProperty(private val listProperty: ViewModelListPropert
   }
 
   override fun swap(index1: Double, index2: Double): Boolean {
-    return listProperty.swap(index1.toInt(), index2.toInt())
+    val idx1 = index1.toInt()
+    val idx2 = index2.toInt()
+    if (idx1 < 0 || idx1 >= listProperty.size || idx2 < 0 || idx2 >= listProperty.size) {
+      return false
+    }
+    listProperty.swap(idx1, idx2)
+    return true
   }
 
   override fun addListener(onChanged: () -> Unit) {
-    listeners.add { _ -> onChanged() }
+    listeners.add { onChanged() }
     ensureValueListenerJob(listProperty.valueFlow.map { })
   }
 }

ios/HybridViewModelListProperty.swift

@@ -47,7 +47,13 @@ class HybridViewModelListProperty: HybridViewModelListPropertySpec, ValuedProper
   }
 
   func swap(index1: Double, index2: Double) throws -> Bool {
-    return property.swap(at: UInt32(index1), with: UInt32(index2))
+    let idx1 = UInt32(index1)
+    let idx2 = UInt32(index2)
+    guard idx1 < property.count && idx2 < property.count else {
+      return false
+    }
+    property.swap(at: idx1, with: idx2)
+    return true
   }
 
   func addListener(onChanged: @escaping () -> Void) throws {