How to login through webview and send data back to the native Android App -

in app, user registration process if bit complex. wanted use web view , call webpage, once registration done, user on native app , main screen activity .

how can implement , after registration regid generated , want send regid tell app user logged in , registered .

how can send variables web view native app ?

take @ javascript interface, allows communicate webview , native app; it's quite easy use.

i advise rather try find normal, all-native solution first though :) perhaps can re-forumulate question , too, before resorting less quality options.