Android uses sharedpreferences to save and delete user login data

To create a Sharedpreferences object:

Sharedpreferences sharedpreferences = context.getsharedpreferences ("UserInfo", mode_private); Editor editor = Sharedpreferences.edit (); Editor.putstring ("username", "user name"); Editor.putstring ("userid", "User ID"); Editor.commit ();

Read data:

Sharedpreferences sharedpreferences = context.getsharedpreferences ("UserInfo", mode_private);

String username = sharedpreferences.getstring ("username", "none");

String UserID = sharedpreferences.getstring ("userid", "");

Delete data:

Sharedpreferences sharedpreferences = context.getsharedpreferences ("UserInfo", mode_private); Sharedpreferences.edit (). Clear (). commit ();

Android uses sharedpreferences to save and delete user login data