Flutter shared preferences same key multiple values-CodePudding

I just created a username login screen and I store that data in shared preferences. But when I register the new user, the old data (username, password) overwritten. Is there just 1 data for 1 key ? I will use sql lite if necessary but I just wondered. Thanks in advance.

CodePudding user response：

You can use a list instead of one data
Save:

 prefs.setStringList('key', yourList);

Retrieve:

 var yourList = prefs.getStringList('key');

CodePudding user response：

You have to remove the older value every time when you register a new user for example you have a register button so every time user press that you should provide a remove value line

for instance:

ElevatedButton(
  onPressed: ()async{
                 var removeval = await prefs.remove("//your key here")     }
 child: Text("Register")
)