Detect and stop user from leaving current page in Flutter?

Question

I want to detect when a user tries to leave the current page and probably stop them from doing so in flutter.

Solution

welcome to stack overflow, You can achieve this by using the WillPopScope Widget. Below is a code sample to achieve this.

WillPopScope(
          child: Container(),
          onWillPop: () {
            if (allowPop) {
              return Future.value(true);
            } else {
              return Future.value(false);
            }
          });

Where allowPop can be a variable you can use to check if to allow user to leave the page or not.