extended cast controls on android

plugins/withAndroidMainActivityAttributes.js

@@ -0,0 +1,42 @@
+const { withAndroidManifest } = require("@expo/config-plugins");
+
+function addAttributesToMainActivity(androidManifest, attributes) {
+  const { manifest } = androidManifest;
+
+  if (!Array.isArray(manifest["application"])) {
+    console.warn("withAndroidMainActivityAttributes: No application array in manifest?");
+    return androidManifest;
+  }
+
+  const application = manifest["application"].find(
+    (item) => item.$["android:name"] === ".MainApplication"
+  );
+  if (!application) {
+    console.warn("withAndroidMainActivityAttributes: No .MainApplication?");
+    return androidManifest;
+  }
+
+  if (!Array.isArray(application["activity"])) {
+    console.warn("withAndroidMainActivityAttributes: No activity array in .MainApplication?");
+    return androidManifest;
+  }
+
+  const activity = application["activity"].find(
+    (item) => item.$["android:name"] === ".MainActivity"
+  );
+  if (!activity) {
+    console.warn("withAndroidMainActivityAttributes: No .MainActivity?");
+    return androidManifest;
+  }
+
+  activity.$ = { ...activity.$, ...attributes };
+
+  return androidManifest;
+}
+
+module.exports = function withAndroidMainActivityAttributes(config, attributes) {
+  return withAndroidManifest(config, (config) => {
+    config.modResults = addAttributesToMainActivity(config.modResults, attributes);
+    return config;
+  });
+};