how to use Hilt with Dagger/Android for example AndroidInjector side by side

Configure hilt for your app and install your root module (which now includes all your modules including dagger android ones) to application scope, so after that they will work side by side, after all dagger-android uses standard dagger, just generate subcomponents when you use ContributeAndroidInjector

is there any proper example for that, I have a base activity which is DaggerActivity has

AndroidInjector

don’t know how to make them work during Hilt migration

Just follow official migration doc (esp first step, migrate application), enable hilt, connect all your all your existing modules to app component, dagger android will continue work https://dagger.dev/hilt/migration-guide