从另一个屏幕移回屏幕后 flutter 调用函数

Question

从另一个屏幕移回屏幕后，如何在 flutter 中调用函数？

例如:

屏幕 1

function1(){
}

屏幕 2

function2(){
//Go back to screen 1 and then call function1()
}

Answer 1

这很简单。

Navigator.push(context, MaterialPageRoute(builder: (context)=> SecondScreen())).then((_){
      // This method gets callback after your SecondScreen is popped from the stack or finished.
      function1();
    });

您还应该引用 Flutter Navigation & Routing.