Get your debug Hash Key For Facebook login.
Get your debug Hash Key. get you debug hash key from android studio, you have to put below function into your splash screen activity, Run your application and you can find hash key in logcat (Android Monitor). 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 private void getHashkey () { try { PackageInfo info = getPackageManager (). getPackageInfo ( BuildConfig . APPLICATION_ID , PackageManager . GET_SIGNATURES ); for ( Signature signature : info . signatures ) { MessageDigest md = MessageDigest . getInstance ( "SHA" ); md . update ( signature . toByteArray ()); Log . d ( "KeyHash:" , Base64 . encodeToString ( md . digest (), Base64 . DEFAULT )); } } catch ( PackageManager . NameNotFoundException e ) { } catch ( NoSuchAlgorithmException e ) { } }