Use a react-native-get-random-values polyfill instead of expo-crypto

[jaredmixpanel]

Remove all references to expo-crypto and instead polyfill crypto.getRandomValues with react-native-get-random-values to avoid uuid.v4() crashing in Expo apps... without breaking non-Expo React Native apps.

Also adds a new sample/demo app, MixpanelExample in the Samples/ folder.

[Copilot]

Pull Request Overview

This PR introduces a new React Native sample project demonstrating Mixpanel integration, replacing the previous expo-crypto setup with a standalone example.

• Adds Android project configuration and resources
• Implements a simple Mixpanel-powered UI in App.tsx
• Includes testing, linting, formatting, and README documentation

Reviewed Changes

Copilot reviewed 59 out of 59 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
Samples/MixpanelExample/android/gradle.properties	Configures Gradle JVM args and AndroidX settings
Samples/MixpanelExample/android/build.gradle	Defines buildscript repositories and plugin dependencies
Samples/MixpanelExample/android/app/src/main/res/values/styles.xml	Adds the app theme style
Samples/MixpanelExample/android/app/src/main/res/values/strings.xml	Defines app_name resource
Samples/MixpanelExample/android/app/src/main/res/drawable/rn_edit_text_material.xml	Supplies safe EditText drawable variant
Samples/MixpanelExample/android/app/src/main/java/com/mixpanelexample/MainApplication.kt	Initializes React Native host and SoLoader
Samples/MixpanelExample/android/app/src/main/java/com/mixpanelexample/MainActivity.kt	Sets up React activity delegate
Samples/MixpanelExample/android/app/src/main/AndroidManifest.xml	Declares application and activity settings
Samples/MixpanelExample/android/app/src/debug/AndroidManifest.xml	Enables cleartext traffic for debug builds
Samples/MixpanelExample/android/app/proguard-rules.pro	Placeholder for ProGuard rules
Samples/MixpanelExample/android/app/build.gradle	Configures app module, dependencies, and build types
Samples/MixpanelExample/tests/App.test.tsx	Adds a basic render test for the App component
Samples/MixpanelExample/README.md	Provides setup and usage instructions
Samples/MixpanelExample/Gemfile	Specifies Ruby gems for iOS CocoaPods environment
Samples/MixpanelExample/App.tsx	Implements Mixpanel example UI and event handlers
Samples/MixpanelExample/.watchmanconfig	Adds an empty Watchman configuration
Samples/MixpanelExample/.prettierrc.js	Defines Prettier formatting rules
Samples/MixpanelExample/.gitignore	Lists files and directories to ignore in version control
Samples/MixpanelExample/.eslintrc.js	Sets up ESLint base configuration
Samples/MixpanelExample/.bundle/config	Configures Bundler installation path

Comments suppressed due to low confidence (1)

Samples/MixpanelExample/App.tsx:15

• Calling mixpanel.init() without awaiting its promise may lead to tracking calls occurring before initialization completes. Consider moving initialization into a useEffect and awaiting the result before rendering or tracking events.

mixpanel.init();

[arelstone]

Please ship this asap @jaredmixpanel

And please make sure that an expo module is not being added again