How to dismiss flutter dialog?

Question

I am new to flutter, I want to dismiss my dialog after the task completion. I've tried with:

Navigator.pop(context, true);  

But my screen is getting black and dialog is still up there. here is my dialog code.

Dialog _dialog = new Dialog(   child: new Row(     mainAxisSize: MainAsixSize.min,      children: <Widget> [     new CircularProgressIndicator(),      new Text("Loading")]),       );  

Answer 1

https://docs.flutter.io/flutter/material/showDialog.html says

The dialog route created by this method is pushed to the root navigator. If the application has multiple Navigator objects, it may be necessary to call Navigator.of(context, rootNavigator: true).pop(result) to close the dialog rather just Navigator.pop(context, result).

so I'd assume one of these two should do what you want.

Answer 2

This code works for me:

  BuildContext dialogContext;   showDialog(     context: context,     barrierDismissible: false,     builder: (BuildContext context) {       dialogContext = context;       return Dialog(         child: new Row(           mainAxisSize: MainAxisSize.min,           children: [             new CircularProgressIndicator(),             new Text("Loading"),           ],         ),       );     },   );    await _longOperation();   Navigator.pop(dialogContext);