DART

flutter get argument values data

// Step: 1 : Sending data
Get.to(Second(), arguments: ["First data", "Second data"]);

// Step: 2 : Get data From first screen
var data = Get.arguments;

// Step 3 : Go back with result from seconde screen
Get.back(result: [{"backValue": "one"}]);

get data from args in flutter

var nextPageData = {foo:'bar'};

Navigator.push(
  context,
  MaterialPageRoute(builder: (context) => 
     MyNextPage(myData: nextPageData))
 );