iOS support

app.json

@@ -74,6 +74,7 @@
           "com.reactnative.googlecast.RNGCExpandedControllerActivity": true
         }
       ],
+      ["./plugins/withExpandedController.js"],
       [
         "expo-build-properties",
         {

plugins/withExpandedController.js

@@ -0,0 +1,18 @@
+const { withAppDelegate } = require("@expo/config-plugins");
+
+const withExpandedController = (config) => {
+  return withAppDelegate(config, async (config) => {
+    const contents = config.modResults.contents;
+
+    // this is the code generated by React native inside didFinishLaunchingWithOptions function; it might change in the future, look for your own anchor then
+    const injectionIndex = contents.indexOf("self.initialProps = @{};");
+    config.modResults.contents =
+      contents.substring(0, injectionIndex) +
+      `\n [GCKCastContext sharedInstance].useDefaultExpandedMediaControls = true; \n` +
+      contents.substring(injectionIndex);
+
+    return config;
+  });
+};
+
+module.exports = withExpandedController;