Getting Facebook API Keys for Android app
Here's some information how to get your Facebook API Keys for Android app and adjust it for FB login.
Login into your FB account:
Click on your app:
There you'll have FB app ID:
Then go to Settings on the left side menu:
Click "Add platform"
Choose Android:
Fill this form with data below the screenshot:
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Package Name: com.yourpackage.name (replace with your package name)
Class Name: com.yourpackage.name.Home (replace with your app home class name)
Key Hashes: XXXXXXxxxxxxXXXXxxxXXXX== (replace with your FB key hash)
Single Sign On: Turn ON
You can find your package name in Manifest file:
Then click "Save Changes" button below the page and within an hour or so all changes will be active: