How to save a cookie in an Android webview forever?

Question

With my code below, I have been able to save a cookie, but as soon as I close the application the cookie disappears.

How is this caused and how can I solve it?

Answer 1

.sync() is to force a imediate sync ,and must be called after page load cause it sync RAM with cache , so cookie must be in ram before calling it .

System automatically sync it every 5 mintues if you use this scheme

onCreate: 
CookieSyncManager.createInstance(context)

onResume:
CookieSyncManager.getInstance().startSync()

onPause:
CookieSyncManager.getInstance().stopSync()

I think you did not waited 5 mintues so system save cookie.