To test\develop Facebook

To test/develop Facebook part you must:

• follow the link developers.facebook.com/apps
• сreate new app by clicking "Create New App" button
• in " Settings" add android platform: click "Add Platform" then choose "Android" in opened dialog
• move to terminal to get your "Key Hash" : go to ".android" directory(in Linux cd ~/.android) and run keytool -exportcert -alias androiddebugkey -keystore debug.keystore | openssl sha1 -binary | openssl base64
• turn back to app web-page in "Key Hashes" field enter your key hash
• then fill in the fields that are underlined at the picture
• go to file res/values/strings.xml change "app_id" on to your.

That's all. Next you can test app.