iOS: Update diagnostic screen on state update

Summary: Update the diagnostic screen whenever the sonar state changes.

Reviewed By: priteshrnandgaonkar

Differential Revision: D9218765

fbshipit-source-id: 654a35e309cb43df18bc8c8a645d469eddc1031d

iOS/SonarKit/SKStateUpdateCPPWrapper.mm

@@ -0,0 +1,16 @@
+#ifdef FB_SONARKIT_ENABLED
+
+#include "SKStateUpdateCPPWrapper.h"
+
+SKStateUpdateCPPWrapper::SKStateUpdateCPPWrapper(id<FlipperStateUpdateListener> controller) {
+  delegate_ = controller;
+}
+
+void SKStateUpdateCPPWrapper::onUpdate() {
+  if (!delegate_) {
+    return;
+  }
+  [delegate_ onUpdate];
+}
+
+#endif