Testing Google Play Install Referrer Library

There's one old hack to test this.

Steps:

1. Start Google Play on the device using campaign link, for example, https://play.google.com/store/apps/details?id=com.test.test_project&referrer=utm_source%3Dtest_source%26utm_medium%3Dtest_medium%26utm_term%3Dtest-term%26utm_content%3Dtest_content%26utm_campaign%3Dtest_name(You can use google play generator: https://developers.google.com/analytics/devguides/collection/android/v3/campaigns#google-play-url-builder)

2. DON'T TAP ON INSTALL BUTTON

3. Install your test build using adb. adb install -r app-debug.apk

Google Play will be returning your test campaign now.

This is the summary of my test：

1. old broadcast way can test.But it's deprecated and not support for now
2. U can test install referrer lib set up by use adb，and you will get utm_source=google-play&utm_medium=organic just like download form Google Play directly.But we can't get more info, it's can only test your library settings is correct
3. https://stackoverflow.com/a/60342463/12716149 by @Quickern.To be honest, it works follow these tips
   • ensure that the application ID is the same.
     • Open via browser on computer（if on your phone, make sure in browser): https://play.google.com/store/apps
     • Find and click an app which u want to use. U will saw a url in address bar. e.g. https://play.google.com/store/apps/details?id=com.google.android.youtube
     • Set the "id"（com.google.android.youtube） as your app Application Id
   • Open test url directly by Google Play app(don't download)
     • https://developers.google.com/analytics/devguides/collection/android/v4/campaigns#google-play-url-builder build test url. Application ID must be your test app id.if you can't see the builder, maybe the reason is your browser extensions
     • past the url on your phone where click can open by Google play app directly. If don't open by Google Play app directly， will received（not20%set).So, directly by Google play app is the key
   • Use adb install your test app
   • Open your app and your will received what you set in the url
4. Use Beta test provided by Google Play: https://stackoverflow.com/a/49750758/12716149.Without a doubt, it works
5. Use emulator：https://stackoverflow.com/a/59744213/12716149 @Marilia. I didn't test this, because emulator with Google Play Store is just like a real device.And the answer said the condition is upload app to Google Play store，so I think it's just like article 4

I was able to test the Play Install Referrer Library using the emulator. Uninstalling the app and running it again would start a connection and give me the expected responseCode in onInstallReferrerSetupFinished.